| 二次微絮凝改善过滤效果的试验研究 |
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| 引用本文： | 齐玉玲,黄晓东,张金松,全继萍.二次微絮凝改善过滤效果的试验研究[J].中国给水排水,2005,21(2):34-36. |
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| 作者姓名： | 齐玉玲 黄晓东 张金松 全继萍 |
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| 作者单位： | 深圳市水务〈集团〉有限公司,水技术研究所,广东,深圳,518030 |
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| 基金项目： | 国家高技术研究发展计划(863)项目(2002AA601120] |
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| 摘 要： | 为改善过滤效果,开展了沉后水的二次微絮凝过滤中试研究。结果表明,当聚合氯化铝(PAC)投量为 0. 2mg/L、微絮凝时间为 2~4min时,可确保滤后水浊度<0. 1NTU的目标值。二次微絮凝过滤不仅解决了初滤水浊度偏高的问题,而且提高了对有机物和藻类的去除率,同时滤后水的铝含量没有升高,过滤水头损失也没有明显的增加。
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| 关 键 词： | 二次微絮凝 过滤 聚合氯化铝 |
| 文章编号： | 1000-4602(2005)02-0034-03 |
Experimental Research on Secondary Micro-flocculation for Improvement of Filtration Efficiency |
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| QI Yu-ling,HUANG Xiao-dong,ZHANG Jin-song,QUAN Ji-ping.Experimental Research on Secondary Micro-flocculation for Improvement of Filtration Efficiency[J].China Water & Wastewater,2005,21(2):34-36. |
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| Authors: | QI Yu-ling HUANG Xiao-dong ZHANG Jin-song QUAN Ji-ping |
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| Abstract: | Pilot-scale test was conducted on the secondary micro-flocculation of water from sedimentation tank for improvement of filtration efficiency. The result shows that the turbidity of filtrated water is always less than 0.1 NTU (target value) at polyaluminum chloride (PAC) dosage of 0.2 mg/L and flocculation time of 2-4 min. The secondary micro-flocculation could not only solve the higher turbidity of primarily filtrated water, but also improve the removal rate of organic pollutants and algae, without any effect on aluminum content in treated water and significant increase of headloss of the filter. |
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| Keywords: | secondary micro-flocculation filtration polyaluminum chloride |
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