西北农村微污染水的氧化处理研究  

Study on oxidation treatment of micro-polluted water in northwest rural areas

作　　者：王鹏[1] 李杰[1] 张莉红[1,2] 谢慧娜 赵炜 WANG Peng;LI Jie;ZHANG Li-hong;XIE Hui-na;ZHAO Wei(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Gansu Membrane Science and Technology Research Institute Co.,Ltd.,Lanzhou 730020,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]甘肃省膜科学技术研究院有限公司,甘肃兰州730020

出　　处：《应用化工》2021年第12期3249-3254,共6页Applied Chemical Industry

基　　金：国家重点研发计划(2016YFC0400705)。

摘　　要：模拟西北农村微污染水源水为研究对象,考察了高锰酸钾、臭氧单独作用以及在确定其最佳工况条件下按照不同的氧化顺序将两者联用,探究对水体中有机污染物的去除效果及分析去除机理。结果表明,高锰酸钾的最佳工况:投加8 mg/L,搅拌速率100 r/min,搅拌时间30 min,中性偏碱;臭氧的最佳工况:投加量为3.5 mg/L,接触时间30 min,中性。两种预氧化剂单独作用对有机物的去除率分别为60%,40%左右;臭氧+高锰酸钾、高锰酸钾+臭氧去除率分别为67%,40%。说明臭氧+高锰酸钾联用是一种十分有效的预氧化手段。Simulating the micro-polluted raw water in the northwest rural areas as the research object,the independent effects of potassium permanganate and ozone and the combination of the two according to different oxidation sequences under the optimal operating conditions were investigated to explore the removal of organic pollutants in the water body effect and analysis of removal mechanism.The results show that:the best working condition of potassium permanganate:dosing 8 mg/L,stirring rate 100 r/min,stirring time 30 min,neutral and alkaline;The best working condition of ozone:dosage is 3.5 mg/L,contact time is 30 min,neutral.The removal rate of organic matter by the two pre-oxidants alone are about 60%and 40%;the removal rate of ozone+potassium permanganate and potassium permanganate+ozone are 67%and 40%respectively.It shows that the combination of ozone and potassium permanganate is a very effective means of pre-oxidation.

关 键 词：微污染水 高锰酸钾预氧化 臭氧预氧化 氧化剂联用 

分 类 号：TU991.2[建筑科学—市政工程] X52[环境科学与工程—环境工程]