不同混凝剂处理低浊微污染水源水研究  

Study on treatment of micro-polluted raw water with low-turbidity by different coagulants

作　　者：李涛[1] 卢晓辉[1,2] 何海涛[3] 白晓峰[1] 柴彬[1] 王群[1] 

机构地区：[1]西南交通大学地球科学与环境工程学院,成都610031 [2]哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨150090 [3]成都理工大学环境与土木工程学院,成都610059

出　　处：《黑龙江大学自然科学学报》2017年第3期334-338,共5页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(51209178)

摘　　要：采用静态烧杯实验对比考察了新型混凝剂与普通混凝剂对低浊微污染水源水的处理效果,并采用高锰酸盐强化整个混凝工艺。结果表明,就高锰酸盐指数、色度、氨氮和浊度等指标的去除效果而言,新型混凝剂比普通混凝剂对微污染水源水的处理效果更好。在考察水质指标随静沉时间变化时,10 mg·L^(-1)投量的新型混凝剂对高锰酸盐指数、色度和浊度的去除率在5 min分别达到43.94%、68.63%和70.67%。新型混凝剂对原水的去除效率比相同情况下的聚合氯化铝(PAC)分别提升了65.94%、124.71%和150.02%。高锰酸盐的加入能够进一步促进混凝剂对各水质指标的去除。Two coagulants were compared in treatment of micro-polluted water using batch experiments. Potassium permanganate （KMnQ） was added to enhance the coagulation process. The results showed that the new coagulant performed better than the existing coagulant in the removal effect according to permanganate index, colourity, turbidity and ammonia nitrogen. Investigating variations of water quality indicators with the sediment time, the permanganate index, colourity and turbidity reached 43.94%, 68.63% and 70.67%, respectively, in five minutes using the new coagulant at concentration of 10 mg ·L^-1. The removal efficiencies of the new coagulant for raw water improved 65.94%, 124.71% and 150.02% compared with PAC under the same condition. KMnO4 improved the removal efficiency further.

关 键 词：新型混凝剂 高锰酸钾 强化混凝 低浊水 微污染水 

分 类 号：X703.5[环境科学与工程—环境工程]