摘要
采用化学沉淀法,分别研究了沉淀剂[Ca(OH)2、CaCl2及Ca(OH)2/CaCl2]、pH及絮凝剂[聚丙烯酰胺(PAM)]对含氟废水F–去除效果的影响。结果表明:用Ca(OH)2/CaCl2混合沉淀剂+PAM的联合处理方法,pH为8.0~9.5时,可使含氟废水的ρ(F-)降低到6mg/L,达到GB31573—2015中的一级排放标准。
Using the chemical precipitation method,the influence of precipitants[Ca(OH)2,CaCl2 and Ca(OH)2/CaCl2],pH and flocculant[polyacrylamide(PAM)]on the F– removal effects of the fluorinecontaining wastewater was investigated respectively.The results show that the combined treatment method using the Ca(OH)2/CaCl2 mixed precipitant and PAM can reduceρ(F-)to 6 mg/L when pH is 8.0~9.5,the class 1 discharge standard of GB 31573-2015 can be met.
作者
朱进京
张怀
徐洪涛
Zhu Jinjing;Zhang Huai;Xu Hongtao(Liming Research & Design Institute of Chemical Industry Co.,Ltd.,Luoyang 471000,China)
出处
《化学推进剂与高分子材料》
CAS
2019年第5期70-73,共4页
Chemical Propellants & Polymeric Materials
关键词
含氟废水
沉淀
混合沉淀剂
PH
絮凝剂
fluorine-containing wastewater
precipitation
mixed precipitant
pH
flocculant
