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| 微絮凝强化过滤工艺处理低温低浊水的实验研究 | |
| 引用本文： | 郑蓓,葛小鹏,李涛,林进,王东升,汤鸿霄.微絮凝强化过滤工艺处理低温低浊水的实验研究[J].环境科学学报,2010,30(11):2184-2188. |
| 作者姓名： | 郑蓓 葛小鹏 李涛 林进 王东升 汤鸿霄 |
| 作者单位： | 1. 中国科学院生态环境研究中心环境水质学国家重点实验室/饮用水科学与工程中心,北京,100085;河北师范大学化学与材料科学学院,石家庄,050016 2. 中国科学院生态环境研究中心环境水质学国家重点实验室/饮用水科学与工程中心,北京,100085 3. 河北师范大学化学与材料科学学院,石家庄,050016 |
| 基金项目： | 国家自然科学基金项目（No.20677073，50678167, 50908224）；国家科技重大专项（No.2008ZX07211-006-1） |
| 摘 要： | 以北京市某水厂冬季沉后水为研究对象,分别采用常规过滤工艺和强化过滤工艺对其进行处理.通过改变聚合氯化铝(PACl)投加量、滤料粒径d和微絮凝时间,并结合水头损失、颗粒数、总有机碳(TOC)、化学需氧量(COD)等实验数据,对低温低浊水体强化过滤工艺条件进行了研究.结果表明,强化过滤工艺与常规过滤工艺相比具有较强的除浊、去除有机物和颗粒物的能力,当微絮凝时间为2min时可以得到较好的过滤效果;PACl投药量为1.5mg·L-1时,浊度可降到0.04NTU,而常规过滤工艺最多只能将浊度降到0.2NTU.在滤料选用方面,当滤料粒径d=0.6～1.2mm时滤后水中颗粒数(2～5μm)、浊度、COD等指标均达到最优值.同时,电感耦合等离子体光谱(ICP-OES)检测结果表明,滤后水中Al3+含量小于0.2mg·L-1,并未因二次投加PACl而升高,因此,不会对水的饮用产生任何健康和安全风险. |
| 关 键 词： | 聚合氯化铝 微絮凝 强化过滤 低温低浊水 |
| 收稿时间： | 3/2/2010 8:46:25 PM |
| 修稿时间： | 4/28/2010 8:06:58 PM |
Micro-flocculation of low temperature and low turbidity water for an enhanced filtration process |
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| ZHENG Bei,GE Xiaopeng,LI Tao,LIN Jin,WANG Dongsheng and TANG Hongxiao.Micro-flocculation of low temperature and low turbidity water for an enhanced filtration process[J].Acta Scientiae Circumstantiae,2010,30(11):2184-2188. | |
| Authors: | ZHENG Bei GE Xiaopeng LI Tao LIN Jin WANG Dongsheng and TANG Hongxiao |
| Institution: | 1. State Key Laboratory of Environmental Aquatic Chemistry/the Drinking Water Science and Engineering Center, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085; 2. College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050016,State Key Laboratory of Environmental Aquatic Chemistry/the Drinking Water Science and Engineering Center, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,State Key Laboratory of Environmental Aquatic Chemistry/the Drinking Water Science and Engineering Center, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050016,State Key Laboratory of Environmental Aquatic Chemistry/the Drinking Water Science and Engineering Center, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 and State Key Laboratory of Environmental Aquatic Chemistry/the Drinking Water Science and Engineering Center, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
| Abstract: | |
| Keywords: | polyaluminum chloride (PACl) micro-flocculation enhanced filtration low temperature and low turbidity water |
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