| 粉末吸附材料协同HPAM强化混凝消除微污染水中OCPs |
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| 引用本文： | 夏传, 刘鹏宇, 武福平, 常青. 粉末吸附材料协同HPAM强化混凝消除微污染水中OCPs[J]. 环境工程学报, 2015, 9(10): 4915-4920. doi: 10.12030/j.cjee.20151047 |
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| 作者姓名： | 夏传 刘鹏宇 武福平 常青 |
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| 作者单位： | 1.兰州交通大学环境与市政工程学院, 兰州 730070 |
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| 基金项目： | 国家自然科学基金资助项目(21277065) 教育部长江学者和创新团队项目(IRT0966) |
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| 摘 要： | 以阴离子型聚丙烯酰胺(HPAM)为絮凝剂,采用强化混凝的处理方法,对微污染水中有机氯农药(OCPs)的消除进行了研究。考察了HAPM投加量、pH值、原水浊度、粉末活性炭及改性凹凸棒土助凝剂等因素对OCPs消除效果的影响。结果表明,HPAM投加量为0.05~0.1 mg/L时,OCPs不同异构体的去除率可达57.00%~74.56%;浊度去除率与OCPs去除率之间显著相关(p<0.05),较高的原水浊度有利于HPAM对OCPs的去除;HPAM混凝消除OCPs的最佳pH值为5~6;改性凹凸棒土作为助凝剂复配HPAM可有效提高OCPs的去除率,粉末活性炭复配效果不明显,所以凹凸棒土比粉末活性炭更加适合作为助凝剂在强化混凝中去除OCPs。
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| 关 键 词： | 微污染水 有机氯 强化混凝 阴离子型聚丙烯酰胺 改性凹凸棒土 粉末活性炭 |
| 收稿时间： | 2014-10-21 |
Elimination of OCPs in micro-polluted water by coagulation with HPAM and helps of powder materials |
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| Xia Chuan, Liu Pengyu, Wu Fuping, Chang Qing. Elimination of OCPs in micro-polluted water by coagulation with HPAM and helps of powder materials[J]. Chinese Journal of Environmental Engineering, 2015, 9(10): 4915-4920. doi: 10.12030/j.cjee.20151047 |
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| Authors: | Xia Chuan Liu Pengyu Wu Fuping Chang Qing |
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| Affiliation: | 1.School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China |
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| Abstract: | The elimination of organochlorine pesticides (OCPs) in micro-polluted water by enhanced coagulation with anionic polyacrylamide (HPAM) was investigated. The effects of coagulant dosage, pH values, initial turbidity, as well as the addition of powder activated carbon and modified attapulgite on the elimination efficiency of OCPs were determined respectively. The results showed that the removal rates of different OCP isomers reached 57.00%—74.56% with the coagulant dosage of 0.05—0.1 mg/L. The removal rates of turbidity and OCPs were significantly correlated. The best pH values for the OCPs elimination were in the range of 5—6. The higher turbidity of raw water was helpful to the removal of OCPs. The modified attapulgite used as assistant coagulants improved the removal of OCPs efficiently, while the improvement was not obvious when powder activated carbon was used as the assistant coagulant, therefore, the modified attapulgite is more suitable to be used as the assistant coagulant in the enhanced coagulation to remove OCPs compared to the powder activated carbon. |
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| Keywords: | micro-polluted water OCPs enhanced coagulation HPAM modified attapulgite powder activated carbon |
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