Humic Acid Removal from Water with Polyaluminum Coagulants: Effect of Sulfate on Aluminum Polymerization
文献类型：期刊论文
| 作者 | Wu, Zhen ; Zhang, Panyue ; Zeng, Guangming ; Zhang, Ming ; Jiang, Jianhong |
| 刊名 | Engineering; Environmental Sciences & Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 138期号:3页码:293-298 |
| 关键词 | Enhanced coagulation Polyaluminum chloride sulfate Humic acids Disinfection by-products |
| ISSN号 | 0733-9372 |
| 中文摘要 | Humic acid (HA) removal from water with inorganic polyaluminum coagulants is reported in this paper. Polyaluminum chloride (PAC) and three kinds of polyaluminum chloride sulfate (PACS) with a [SO42-]/[Al3+] (S) molar ratio of 0.02, 0.06, and 0.10 were prepared. The coagulation behaviors of these coagulants were investigated in the view of coagulant dosage, initial pH, and aging time. PACS (S=0.06) showed the best HA removal efficiency, and there was no restabilization within a broad effective dosage range. The proper initial pH range was broad and was 4.0-9.0 for PACS (S=0.06). The stability of PACS (S=0.06) reduced with a long aging time, so the proper aging time should not exceed 1 month. The aluminum species distribution, particle mean size, charge neutralization, and infrared spectrum of prepared coagulants were tested. Results showed that SO42- addition promoted the hydrolysis/polymerization of aluminum and reduced the charge neutralization capacity of PACS. Besides charge neutralization, the bridge-aggregation and sweep-flocculation mechanisms may play important roles for HA removal. The coexisting Ca2+ and kaolin slightly promoted the HA removal with polyaluminum coagulants. DOI: 10.1061/(ASCE)EE.1943-7870.0000412. (C) 2012 American Society of Civil Engineers. |
| WOS记录号 | WOS:000302213700011 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8181]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Wu, Zhen,Zhang, Panyue,Zeng, Guangming,et al. Humic Acid Removal from Water with Polyaluminum Coagulants: Effect of Sulfate on Aluminum Polymerization[J]. Engineering; Environmental Sciences & Ecology,2012,138(3):293-298. |
| APA | Wu, Zhen,Zhang, Panyue,Zeng, Guangming,Zhang, Ming,&Jiang, Jianhong.(2012).Humic Acid Removal from Water with Polyaluminum Coagulants: Effect of Sulfate on Aluminum Polymerization.Engineering; Environmental Sciences & Ecology,138(3),293-298. |
| MLA | Wu, Zhen,et al."Humic Acid Removal from Water with Polyaluminum Coagulants: Effect of Sulfate on Aluminum Polymerization".Engineering; Environmental Sciences & Ecology 138.3(2012):293-298. |
入库方式： OAI收割
来源：生态环境研究中心
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