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降低低温低浊湘江原水中浊度试验研究
引用本文:汪彩文,孙士权,任伯帜,王旭东.降低低温低浊湘江原水中浊度试验研究[J].环境科学与技术,2008,31(12).
作者姓名:汪彩文  孙士权  任伯帜  王旭东
作者单位:1. 长沙理工大学水利学院,湖南,长沙,410076
2. 湖南科技大学土木学院,湖南,湘潭,411201
3. 深圳水务集团,广东,深圳,518030
摘    要:文章针对低温低浊湘江原水浊度难于处理状况,寻找降低浊度的方法。通过强化混凝、预氧化工艺处理原水的试验研究表明:低温低浊时,在相同条件下,三氯化铁比硫酸铝和碱式氯化铝的除浊效果要好,但是三氯化铁处理原水浊度受pH值、GT值、投加量和助凝剂的影响。中性水环境条件下,原水经处理后残余浊度最低;三氯化铁投量为0.14mmol/L时处理效果最佳,对水中浊度去除率高达97.5%。高锰酸钾预氧化对三氯化铁处理原水浊度起到强化作用,对浊度去除率可提高2.1%。

关 键 词:低温低浊  湘江原水  强化混凝  预氧化  浊度

Decreasing Turbidity of Low Temperature and Low Turbidity Raw Water of Xiangjiang River
WANG Cai-wen,SUN Shi-quan,REN Bo-zhi,WANG Xu-dong.Decreasing Turbidity of Low Temperature and Low Turbidity Raw Water of Xiangjiang River[J].Environmental Science and Technology,2008,31(12).
Authors:WANG Cai-wen  SUN Shi-quan  REN Bo-zhi  WANG Xu-dong
Institution:WANG Cai-wen1,SUN Shi-quan1,REN Bo-zhi2,WANG Xu-dong3 (1.School of Water Conservancy Engineering,Changsha University of Science , Technology,Changsha 410076,China,2. School of Civil Engineering,Hunan University of Science , Technology,Xiangtan 411201,3.Shenzhen Water Group Co. Ltd,Shenzhen518030,China)
Abstract:This paper aimed to identify a method to decrease turbidity of raw water of Xiangjiang River under the circumstance of low temperature and low turbidity. Experiments of treating raw water through enhanced coagulation and preoxidaiton demonstrated that at the same terms and conditions, FeCl3 was more effective than Al2(SO4) 3 and PAC in decreasing the turbidity. However FeCl3 will be affected by pH, GT, coagulation as well as dosage in the process. In natural water, residual turbidity will be the least after...
Keywords:low temperature and low turbidity  raw water of Xiangjiang River  enhanced coagulation  preoxidation  turbidity  
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