煤矿低浊含氟废水除氟试验研究  

Experimental study on fluoride removal from low turbidity fluorinated wastewater in a coal mine

作　　者：郑向东 徐旭峰 肖艳 郑利祥 高杰 ZHENG Xiangdong;XU Xufeng;XIAO Yan;ZHENG Lixiang;GAO Jie(Wanbei Coal Power Group Co.,Ltd.,Suzhou 234000,China;Hangzhou Research Institute of China Coal Technology&Engineering Group,Hangzhou 311201,China)

机构地区：[1]皖北煤电集团有限责任公司,安徽宿州234000 [2]中煤科工集团杭州研究院有限公司,浙江杭州311201

出　　处：《能源环境保护》2022年第5期66-70,共5页Energy Environmental Protection

摘　　要：针对煤矿低浊含氟水,采用聚合氯化铝(PAC)、复配酸性除氟剂(药剂A)、改性铝铁硅聚合物除氟剂(药剂B)和复合除氟剂(DAMW-04)4种药剂进行除氟试验,分析了水温、pH及主要离子含量对除氟效果的影响。结果表明:当原水氟化物浓度为2.5 mg/L时,PAC、药剂A、药剂B和DAMW-04药剂可分别将氟化物浓度降至1.4 mg/L、1.2 mg/L、0.97 mg/L和0.82 mg/L,DAMW-04除氟效果最佳;在DAMW-04投加量为180 mg/L,絮凝剂(PAM)投加量为1.0 mg/L、水温为20℃、pH为7的条件下,氟化物浓度降至0.91 mg/L并满足《地表水环境质量标准》(GB 3838-2002)Ⅲ类水要求。Fluoride removal test of the low turbidity fluorinated water in a coal mine was carried out by using four agents:polyaluminum chloride(PAC),composite acidic fluoride remover(Agent A),modified aluminum iron silicon polymer fluoride remover(Agent B)and composite fluoride remover(DAMW-04).The effects of water temperature,pH and main ion content on fluoride removal were analyzed.The results showed that when the fluoride concentration in raw water was 2.5 mg/L,PAC,Agent A,Agent B and DAMW-04 could reduce the fluoride concentration to 1.4 mg/L,1.2 mg/L,0.97 mg/L and 0.82 mg/L,respectively.DAMW-04 had the best fluoride removal effect.When the dosage of DAMW-04 was 180 mg/L,the dosage of flocculant(PAM)was 1.0 mg/L,the water temperature was 20℃,and the pH was 7,the fluoride concentration would be reduced to 0.91 mg/L,which met the requirements of ClassⅢwater of Environmental Quality Standards for Surface Water(GB 3838—2002).

关 键 词：煤矿 含氟水 低浊 除氟 

分 类 号：X703[环境科学与工程—环境工程]