Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir

In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Binbin Jiang [verfasserIn] Ze Zhao [verfasserIn] Deqian Liu [verfasserIn] Zhiguo Cao [verfasserIn] Jiawei Tang [verfasserIn] Min Wu [verfasserIn] Haiqin Zhang [verfasserIn] Peng Li [verfasserIn] Dingcheng Liang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange

Übergeordnetes Werk:	In: Sustainability - MDPI AG, 2009, 15(2023), 15106, p 15106
Übergeordnetes Werk:	volume:15 ; year:2023 ; number:15106, p 15106

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/su152015106

Katalog-ID:	DOAJ09307235X

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520			\|a In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations.
650		4	\|a coal mine underground reservoir
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700	0		\|a Peng Li \|e verfasserin \|4 aut
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allfields	10.3390/su152015106 doi (DE-627)DOAJ09307235X (DE-599)DOAJ1dd4b70008e146cea5f12a9e48bbcea0 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Binbin Jiang verfasserin aut Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations. coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange Environmental effects of industries and plants Renewable energy sources Environmental sciences Ze Zhao verfasserin aut Deqian Liu verfasserin aut Zhiguo Cao verfasserin aut Jiawei Tang verfasserin aut Min Wu verfasserin aut Haiqin Zhang verfasserin aut Peng Li verfasserin aut Dingcheng Liang verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 15106, p 15106 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:15106, p 15106 https://doi.org/10.3390/su152015106 kostenfrei https://doaj.org/article/1dd4b70008e146cea5f12a9e48bbcea0 kostenfrei https://www.mdpi.com/2071-1050/15/20/15106 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 15106, p 15106
spelling	10.3390/su152015106 doi (DE-627)DOAJ09307235X (DE-599)DOAJ1dd4b70008e146cea5f12a9e48bbcea0 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Binbin Jiang verfasserin aut Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations. coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange Environmental effects of industries and plants Renewable energy sources Environmental sciences Ze Zhao verfasserin aut Deqian Liu verfasserin aut Zhiguo Cao verfasserin aut Jiawei Tang verfasserin aut Min Wu verfasserin aut Haiqin Zhang verfasserin aut Peng Li verfasserin aut Dingcheng Liang verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 15106, p 15106 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:15106, p 15106 https://doi.org/10.3390/su152015106 kostenfrei https://doaj.org/article/1dd4b70008e146cea5f12a9e48bbcea0 kostenfrei https://www.mdpi.com/2071-1050/15/20/15106 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 15106, p 15106
allfields_unstemmed	10.3390/su152015106 doi (DE-627)DOAJ09307235X (DE-599)DOAJ1dd4b70008e146cea5f12a9e48bbcea0 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Binbin Jiang verfasserin aut Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations. coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange Environmental effects of industries and plants Renewable energy sources Environmental sciences Ze Zhao verfasserin aut Deqian Liu verfasserin aut Zhiguo Cao verfasserin aut Jiawei Tang verfasserin aut Min Wu verfasserin aut Haiqin Zhang verfasserin aut Peng Li verfasserin aut Dingcheng Liang verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 15106, p 15106 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:15106, p 15106 https://doi.org/10.3390/su152015106 kostenfrei https://doaj.org/article/1dd4b70008e146cea5f12a9e48bbcea0 kostenfrei https://www.mdpi.com/2071-1050/15/20/15106 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 15106, p 15106
allfieldsGer	10.3390/su152015106 doi (DE-627)DOAJ09307235X (DE-599)DOAJ1dd4b70008e146cea5f12a9e48bbcea0 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Binbin Jiang verfasserin aut Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations. coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange Environmental effects of industries and plants Renewable energy sources Environmental sciences Ze Zhao verfasserin aut Deqian Liu verfasserin aut Zhiguo Cao verfasserin aut Jiawei Tang verfasserin aut Min Wu verfasserin aut Haiqin Zhang verfasserin aut Peng Li verfasserin aut Dingcheng Liang verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 15106, p 15106 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:15106, p 15106 https://doi.org/10.3390/su152015106 kostenfrei https://doaj.org/article/1dd4b70008e146cea5f12a9e48bbcea0 kostenfrei https://www.mdpi.com/2071-1050/15/20/15106 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 15106, p 15106
allfieldsSound	10.3390/su152015106 doi (DE-627)DOAJ09307235X (DE-599)DOAJ1dd4b70008e146cea5f12a9e48bbcea0 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Binbin Jiang verfasserin aut Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations. coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange Environmental effects of industries and plants Renewable energy sources Environmental sciences Ze Zhao verfasserin aut Deqian Liu verfasserin aut Zhiguo Cao verfasserin aut Jiawei Tang verfasserin aut Min Wu verfasserin aut Haiqin Zhang verfasserin aut Peng Li verfasserin aut Dingcheng Liang verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 15106, p 15106 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:15106, p 15106 https://doi.org/10.3390/su152015106 kostenfrei https://doaj.org/article/1dd4b70008e146cea5f12a9e48bbcea0 kostenfrei https://www.mdpi.com/2071-1050/15/20/15106 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 15106, p 15106
language	English
source	In Sustainability 15(2023), 15106, p 15106 volume:15 year:2023 number:15106, p 15106
sourceStr	In Sustainability 15(2023), 15106, p 15106 volume:15 year:2023 number:15106, p 15106
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange Environmental effects of industries and plants Renewable energy sources Environmental sciences
isfreeaccess_bool	true
container_title	Sustainability
authorswithroles_txt_mv	Binbin Jiang @@aut@@ Ze Zhao @@aut@@ Deqian Liu @@aut@@ Zhiguo Cao @@aut@@ Jiawei Tang @@aut@@ Min Wu @@aut@@ Haiqin Zhang @@aut@@ Peng Li @@aut@@ Dingcheng Liang @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	610604120
id	DOAJ09307235X
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">DOAJ09307235X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20240413163131.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">240413s2023 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.3390/su152015106</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ09307235X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ1dd4b70008e146cea5f12a9e48bbcea0</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">TD194-195</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">TJ807-830</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">GE1-350</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Binbin Jiang</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2023</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. 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callnumber-first	T - Technology
author	Binbin Jiang
spellingShingle	Binbin Jiang misc TD194-195 misc TJ807-830 misc GE1-350 misc coal mine underground reservoir misc water–coal interaction misc mineral dissolution misc adsorption precipitation misc cation exchange misc Environmental effects of industries and plants misc Renewable energy sources misc Environmental sciences Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir
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topic_title	TD194-195 TJ807-830 GE1-350 Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir coal mine underground reservoir water–coal interaction mineral dissolution adsorption precipitation cation exchange
topic	misc TD194-195 misc TJ807-830 misc GE1-350 misc coal mine underground reservoir misc water–coal interaction misc mineral dissolution misc adsorption precipitation misc cation exchange misc Environmental effects of industries and plants misc Renewable energy sources misc Environmental sciences
topic_unstemmed	misc TD194-195 misc TJ807-830 misc GE1-350 misc coal mine underground reservoir misc water–coal interaction misc mineral dissolution misc adsorption precipitation misc cation exchange misc Environmental effects of industries and plants misc Renewable energy sources misc Environmental sciences
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title	Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir
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title_full	Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir
author_sort	Binbin Jiang
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author_browse	Binbin Jiang Ze Zhao Deqian Liu Zhiguo Cao Jiawei Tang Min Wu Haiqin Zhang Peng Li Dingcheng Liang
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title_sort	study on the interaction mechanism between residual coal and mine water in goaf of coal mine underground reservoir
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title_auth	Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir
abstract	In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations.
abstractGer	In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations.
abstract_unstemmed	In this paper, the coal pillar dam body of the underground reservoir in Daliuta coal mine, along with the residual coal and the mine water present in the goaf, were taken as research subjects, and a dynamic simulation experiment device was constructed to simulate the actual process of a coal mine underground reservoir (CMUR). The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. Meanwhile, the dissolution processes of minerals both in the water–rock and water–coal interactions predominantly contributed to the increase of Na<sup<+</sup< and Cl<sup<−</sup< concentrations.
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container_issue	15106, p 15106
title_short	Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir
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The composition and structure of middling coal during the experiment were determined by X-ray diffraction analysis (XRD) and X-ray fluorescence spectrometry (XRF), while changes in ion content in the mine water were assessed through ion chromatography (IC) and inductively coupled plasma emission spectrometry (ICP-OES). Based on both the composition and structure of coal as well as variations in ion concentrations in water, the interaction mechanism between coal and mine water was explored. The results showed that the water–coal interaction primarily arose from the dissolution of minerals, such as rock salt and gypsum, within coal. Additionally, coal samples in mine water exhibited adsorption and precipitation of metal ions, along with cation exchange reaction. Na+ in mine water predominantly originated from the dissolution of rock salt (sodium chloride) in coal, while Ca<sup<2+</sup< and <inline-formula<<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"<<semantics<<msubsup<<mi<SO</mi<<mn<4</mn<<mrow<<mn<2</mn<<mo<−</mo<</mrow<</msubsup<</semantics<</math<</inline-formula< were released through the dissolution of gypsum and other minerals in coal. In the process of the water–coal interaction, Ca<sup<2+</sup< in the water body was adsorbed and immobilized by the coal sample, leading to the formation and deposition of CaCO<sub<3</sub< on the surface of the coal, thereby increasing the calcite content. These processes collectively contributed to a decrease in the concentration of Ca<sup<2+</sup< in the water body. Moreover, the cation exchange reaction occurred between Ca<sup<2+</sup< and Mg<sup<2+</sup< in mine water and Na<sup<+</sup< in the coal sample. The presence of Ca<sup<2+</sup< and Mg<sup<2+</sup< resulted in their displacement of Na<sup<+</sup< within the coal matrix, consequently elevating Na<sup<+</sup< concentration in the mine water while reducing both the Ca<sup<2+</sup< and Mg<sup<2+</sup< concentrations. On this basis, combined with insights from the water–rock interaction, it can be inferred that the adsorption mechanisms involving rocks played a dominant role in the decrease of Ca<sup<2+</sup< concentration during the water–rock interactions. 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Study on the Interaction Mechanism between Residual Coal and Mine Water in Goaf of Coal Mine Underground Reservoir

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