复合絮凝剂在含悬浮物矿井水处理中的应用  

The application of the compound flocculant in mine water treatment containing suspended solids

作　　者：李刚 柴阳 朱轲 混磊 赵兴国 刘小勇 LI Gang;CHAI Yang;ZHU Ke;HUN Lei;ZHAO Xing-guo;LIU Xiao-yong(Shaan Xi Qinbang Environmental Technology Co.,Ltd;Shaan Xi Qinbang Environmental Engineering Co.,Ltd,Xi’an,Shaanxi 710015,China)

机构地区：[1]陕西秦邦环保科技有限公司 [2]陕西秦邦环保工程有限公司,陕西西安710015

出　　处：《煤炭加工与综合利用》2021年第11期92-96,共5页Coal Processing & Comprehensive Utilization

摘　　要：为了提高含悬浮物矿井水的处理能力,采用无机高分子絮凝剂PAC及助凝剂PAM复合使用。本文选取西北某煤矿水质分析特征,其矿井水悬浮物、COD含量较高,采用化学混凝法处理工艺,实验结果表明,PAC与PAM共用,加快絮体形成沉淀,且矾花更大、絮体更加密实,有利于后期压滤工艺操作,更容易压滤成块;PAC与PAM复合处理矿井水的最佳实验条件为PAC投加量100 mg/L,PAM投加量1 mg/L,温度20℃,搅拌速度200 r/min,矿井水COD含量去除率达到99%以上。In order to improve the treatment capacity of mine water containing suspended solids,inorganic polymer flocculant PAC and coagulant aid PAM were used together.In this paper,the characteristics of water quality analysis of a coal mine in northwest China was selected.The suspended solids and COD contents of mine water are high.Chemical coagulation process is adopted to treat the mine water.The experimental results showed that PAC and PAM could accelerate the formation of flocculant precipitation,and the alum flower was larger and the flocculant was more dense,which is beneficial to the later pressure filtration process operation and easier to press and filter into blocks.The optimal experimental conditions for PAC and PAM combined treatment of mine water are as follows:PAC dosage 100 mg/L,PAM dosage 1mg/L,temperature 20℃,stirring rate 200 r/min,COD content removal rate of mine water reaches above 99%.

关 键 词：矿井水 无机絮凝剂 助凝剂 COD 

分 类 号：X703[环境科学与工程—环境工程]