Influencing Factors for Phosphorus Removal by Modified Bio-ceramic Substrates Coated with ZnAl-LDHs Synthesized by Different Modification Conditions
Under different pH conditions, the hydrothermal and co-precipitation method was used to synthesize layered double hydroxides (LDHs) coated on bio-ceramic substrates with three different Zn2+/Al3+ molar ratios. Applying the original and six kinds of modified bio-ceramic substrates coated with ZnAl-LDHs (bio-ceramic/ZnAl-LDHs) in simulated vertical-flow constructed wetlands, experiments for phosphorus removal and isothermal adsorption were conducted to analyze the mechanism and effect of each synthesis factor. The results showed that ZnAl-LDHs (pH=11) had a more obvious effect on phosphorus removal, especially for bio-ceramic/ZnAl-LDHs (pH=11, 1:1), whose average removal rates of TP, TDP and SRP were enhanced over 70%. Its maximum adsorption capacity for phosphorus was three times higher than that of the original bio-ceramic. Both pH and Zn2+/Al3+ molar ratio affected the configuration and coating properties of bio-ceramic/ZnAl-LDHs at the time of synthesis, and pH was the main synthesis factor for phosphorus removal efficiency of bio-ceramic/ZnAl-LDHs. Through reasonable regulation of pH and Zn2+/Al3+ molar ratio when bio-ceramic/ZnAl-LDHs was synthesized, the phosphorus removal efficiency could be improved effectively.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:39 |
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| Enthalten in: |
Huan jing ke xue= Huanjing kexue - 39(2018), 5 vom: 08. Mai, Seite 2184-2194 |
| Sprache: |
Chinesisch |
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| Beteiligte Personen: |
Xiang, Yang [VerfasserIn] |
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| Links: |
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| Themen: |
27YLU75U4W |
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| Anmerkungen: |
Date Completed 04.02.2019 Date Revised 15.02.2019 published: Print Citation Status MEDLINE |
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| doi: |
10.13227/j.hjkx.201710128 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM286085976 |
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| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Under different pH conditions, the hydrothermal and co-precipitation method was used to synthesize layered double hydroxides (LDHs) coated on bio-ceramic substrates with three different Zn2+/Al3+ molar ratios. Applying the original and six kinds of modified bio-ceramic substrates coated with ZnAl-LDHs (bio-ceramic/ZnAl-LDHs) in simulated vertical-flow constructed wetlands, experiments for phosphorus removal and isothermal adsorption were conducted to analyze the mechanism and effect of each synthesis factor. The results showed that ZnAl-LDHs (pH=11) had a more obvious effect on phosphorus removal, especially for bio-ceramic/ZnAl-LDHs (pH=11, 1:1), whose average removal rates of TP, TDP and SRP were enhanced over 70%. Its maximum adsorption capacity for phosphorus was three times higher than that of the original bio-ceramic. Both pH and Zn2+/Al3+ molar ratio affected the configuration and coating properties of bio-ceramic/ZnAl-LDHs at the time of synthesis, and pH was the main synthesis factor for phosphorus removal efficiency of bio-ceramic/ZnAl-LDHs. Through reasonable regulation of pH and Zn2+/Al3+ molar ratio when bio-ceramic/ZnAl-LDHs was synthesized, the phosphorus removal efficiency could be improved effectively | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a ZnAl-LDHs | |
| 650 | 4 | |a bio-ceramic substrates | |
| 650 | 4 | |a coating modification | |
| 650 | 4 | |a phosphorus removal | |
| 650 | 4 | |a vertical-flow constructed wetlands | |
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| 650 | 7 | |a Phosphorus |2 NLM | |
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| 700 | 1 | |a Zhang, Xiang-Ling |e verfasserin |4 aut | |
| 700 | 1 | |a Lei, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Chen-Jia |e verfasserin |4 aut | |
| 700 | 1 | |a Yuan, Ye |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Ying-He |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Zhou-Ying |e verfasserin |4 aut | |
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