Phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth
In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freund...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cai, Ru [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017transfer abstract |
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| Umfang: |
8 |
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| Übergeordnetes Werk: |
Enthalten in: Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality - Ren, Chunhui ELSEVIER, 2022, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:187 ; year:2017 ; day:1 ; month:02 ; pages:212-219 ; extent:8 |
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| DOI / URN: |
10.1016/j.jenvman.2016.11.047 |
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| 520 | |a In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. | ||
| 520 | |a In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. | ||
| 650 | 7 | |a Water hyacinth |2 Elsevier | |
| 650 | 7 | |a P reclaim |2 Elsevier | |
| 650 | 7 | |a Sorption efficiency |2 Elsevier | |
| 650 | 7 | |a Eutrophic water |2 Elsevier | |
| 650 | 7 | |a Fe-impregnated biochar |2 Elsevier | |
| 700 | 1 | |a Wang, Xin |4 oth | |
| 700 | 1 | |a Ji, Xionghui |4 oth | |
| 700 | 1 | |a Peng, Bo |4 oth | |
| 700 | 1 | |a Tan, Changyin |4 oth | |
| 700 | 1 | |a Huang, Xi |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Ren, Chunhui ELSEVIER |t Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality |d 2022 |g Amsterdam [u.a.] |w (DE-627)ELV008002754 |
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10.1016/j.jenvman.2016.11.047 doi GBV00000000000056A.pica (DE-627)ELV020221339 (ELSEVIER)S0301-4797(16)30935-5 DE-627 ger DE-627 rakwb eng 333.7 690 333.7 DNB 690 DNB 300 VZ 70.00 bkl 71.00 bkl Cai, Ru verfasserin aut Phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth 2017transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. Water hyacinth Elsevier P reclaim Elsevier Sorption efficiency Elsevier Eutrophic water Elsevier Fe-impregnated biochar Elsevier Wang, Xin oth Ji, Xionghui oth Peng, Bo oth Tan, Changyin oth Huang, Xi oth Enthalten in Elsevier Ren, Chunhui ELSEVIER Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality 2022 Amsterdam [u.a.] (DE-627)ELV008002754 volume:187 year:2017 day:1 month:02 pages:212-219 extent:8 https://doi.org/10.1016/j.jenvman.2016.11.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 70.00 Sozialwissenschaften allgemein: Allgemeines VZ 71.00 Soziologie: Allgemeines VZ AR 187 2017 1 0201 212-219 8 045F 333.7 |
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10.1016/j.jenvman.2016.11.047 doi GBV00000000000056A.pica (DE-627)ELV020221339 (ELSEVIER)S0301-4797(16)30935-5 DE-627 ger DE-627 rakwb eng 333.7 690 333.7 DNB 690 DNB 300 VZ 70.00 bkl 71.00 bkl Cai, Ru verfasserin aut Phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth 2017transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. Water hyacinth Elsevier P reclaim Elsevier Sorption efficiency Elsevier Eutrophic water Elsevier Fe-impregnated biochar Elsevier Wang, Xin oth Ji, Xionghui oth Peng, Bo oth Tan, Changyin oth Huang, Xi oth Enthalten in Elsevier Ren, Chunhui ELSEVIER Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality 2022 Amsterdam [u.a.] (DE-627)ELV008002754 volume:187 year:2017 day:1 month:02 pages:212-219 extent:8 https://doi.org/10.1016/j.jenvman.2016.11.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 70.00 Sozialwissenschaften allgemein: Allgemeines VZ 71.00 Soziologie: Allgemeines VZ AR 187 2017 1 0201 212-219 8 045F 333.7 |
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10.1016/j.jenvman.2016.11.047 doi GBV00000000000056A.pica (DE-627)ELV020221339 (ELSEVIER)S0301-4797(16)30935-5 DE-627 ger DE-627 rakwb eng 333.7 690 333.7 DNB 690 DNB 300 VZ 70.00 bkl 71.00 bkl Cai, Ru verfasserin aut Phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth 2017transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. Water hyacinth Elsevier P reclaim Elsevier Sorption efficiency Elsevier Eutrophic water Elsevier Fe-impregnated biochar Elsevier Wang, Xin oth Ji, Xionghui oth Peng, Bo oth Tan, Changyin oth Huang, Xi oth Enthalten in Elsevier Ren, Chunhui ELSEVIER Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality 2022 Amsterdam [u.a.] (DE-627)ELV008002754 volume:187 year:2017 day:1 month:02 pages:212-219 extent:8 https://doi.org/10.1016/j.jenvman.2016.11.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 70.00 Sozialwissenschaften allgemein: Allgemeines VZ 71.00 Soziologie: Allgemeines VZ AR 187 2017 1 0201 212-219 8 045F 333.7 |
| allfieldsGer |
10.1016/j.jenvman.2016.11.047 doi GBV00000000000056A.pica (DE-627)ELV020221339 (ELSEVIER)S0301-4797(16)30935-5 DE-627 ger DE-627 rakwb eng 333.7 690 333.7 DNB 690 DNB 300 VZ 70.00 bkl 71.00 bkl Cai, Ru verfasserin aut Phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth 2017transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. Water hyacinth Elsevier P reclaim Elsevier Sorption efficiency Elsevier Eutrophic water Elsevier Fe-impregnated biochar Elsevier Wang, Xin oth Ji, Xionghui oth Peng, Bo oth Tan, Changyin oth Huang, Xi oth Enthalten in Elsevier Ren, Chunhui ELSEVIER Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality 2022 Amsterdam [u.a.] (DE-627)ELV008002754 volume:187 year:2017 day:1 month:02 pages:212-219 extent:8 https://doi.org/10.1016/j.jenvman.2016.11.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 70.00 Sozialwissenschaften allgemein: Allgemeines VZ 71.00 Soziologie: Allgemeines VZ AR 187 2017 1 0201 212-219 8 045F 333.7 |
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10.1016/j.jenvman.2016.11.047 doi GBV00000000000056A.pica (DE-627)ELV020221339 (ELSEVIER)S0301-4797(16)30935-5 DE-627 ger DE-627 rakwb eng 333.7 690 333.7 DNB 690 DNB 300 VZ 70.00 bkl 71.00 bkl Cai, Ru verfasserin aut Phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth 2017transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. Water hyacinth Elsevier P reclaim Elsevier Sorption efficiency Elsevier Eutrophic water Elsevier Fe-impregnated biochar Elsevier Wang, Xin oth Ji, Xionghui oth Peng, Bo oth Tan, Changyin oth Huang, Xi oth Enthalten in Elsevier Ren, Chunhui ELSEVIER Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality 2022 Amsterdam [u.a.] (DE-627)ELV008002754 volume:187 year:2017 day:1 month:02 pages:212-219 extent:8 https://doi.org/10.1016/j.jenvman.2016.11.047 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 70.00 Sozialwissenschaften allgemein: Allgemeines VZ 71.00 Soziologie: Allgemeines VZ AR 187 2017 1 0201 212-219 8 045F 333.7 |
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phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth |
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Phosphate reclaim from simulated and real eutrophic water by magnetic biochar derived from water hyacinth |
| abstract |
In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. |
| abstractGer |
In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. |
| abstract_unstemmed |
In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters. |
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Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In this study, the efficiency and mechanism of aqueous phosphate removal by magnetic biochar derived from water hyacinth (MW) were investigated. The MW pyrolyzed at 450 °C (MW450) exhibited the most prominent phosphate sorption capacity, which was estimated to be 5.07 mg g−1 based on Langmuir−Freundlich model. At an initial phosphorus (P) concentration of 1 mg l−1, >90% P removal was achieved over pH 3–9, but the efficiency decreased sharply at pH > 10. The presence of arsenate and carbonate could remarkably decrease P sorption, while the inhibition effects of antimonate, nitrate and sulfate were less significant. In further application of MW450 to reclaim P from eutrophic lake waters (0.71–0.94 mg l−1 total P), ∼96% P removals were attained in the batch studies and the effluent P concentrations in the column tests were reduced to <0.05 mg l−1 within 509–1019 empty bed volumes. As indicated by XRD, MW450 surface was dominated by Fe3O4 and Fe2O3, resulting in a good ferromagnetic property of this composite (saturation magnetization 45.8 emu g−1). Based on XPS, P sorption onto MW450 occurred mainly by surface complexation with the hydroxyl via ligand exchange. These results highlighted that MW derived from highly damaging water hyacinth could provide a promising alternative for P removal from most eutrophic waters.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Water hyacinth</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">P reclaim</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Sorption efficiency</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Eutrophic water</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Fe-impregnated biochar</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, Xin</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ji, Xionghui</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Peng, Bo</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tan, Changyin</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Huang, Xi</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Ren, Chunhui ELSEVIER</subfield><subfield code="t">Cohort, signaling, and early-career dynamics: The hidden significance of class in black-white earnings inequality</subfield><subfield code="d">2022</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV008002754</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:187</subfield><subfield code="g">year:2017</subfield><subfield code="g">day:1</subfield><subfield code="g">month:02</subfield><subfield code="g">pages:212-219</subfield><subfield code="g">extent:8</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.jenvman.2016.11.047</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">70.00</subfield><subfield code="j">Sozialwissenschaften allgemein: Allgemeines</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">71.00</subfield><subfield code="j">Soziologie: Allgemeines</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">187</subfield><subfield code="j">2017</subfield><subfield code="b">1</subfield><subfield code="c">0201</subfield><subfield code="h">212-219</subfield><subfield code="g">8</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">333.7</subfield></datafield></record></collection>
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