基于TOC的洗砂工艺再生循环水PAM残余及影响研究  

Study on PAM residue in recycled circulating water of sand washing process based on TOC

作　　者：姚一帆 张婷 刘秀红 姚金根 张文军[1] 张明青[3] YAO Yi-fan;ZHANG Ting;LIU Xiu-hong;YAO Jin-gen;ZHANG Wen-jun;ZHANG Ming-qing(School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221016,China;Shanghai Construction Engineering Building Materials Technology Group Co.,Ltd.,Shanghai 200080,China;School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou 221016,China)

机构地区：[1]中国矿业大学化工学院,江苏徐州221016 [2]上海建工建材科技集团股份有限公司,上海200080 [3]中国矿业大学环境与测绘学院,江苏徐州221016

出　　处：《应用化工》2022年第6期1566-1569,共4页Applied Chemical Industry

基　　金：国家自然科学基金项目(51874304)。

摘　　要：基于水中的总有机碳(TOC)分析,通过单元沉降实验,考察了聚丙烯酰胺(PAM)对洗砂泥水沉降澄清效果的影响及其在循环水中的残余与积聚情况。结果表明,添加PAM可以显著地改善洗砂泥水的初始沉降速度及澄清效果;随着加药量的增加,再生澄清水中的PAM残余量亦呈增长趋势;随着净化再生水的循环使用过程的延长,循环水中的PAM残余没有明显的循环积聚效应。The influence of polyacrylamide(PAM)on settling and clarifying of sand washing mud water were inspected by unit sedimentation test,and the residual and accumulation of PAM in the clarified circulating water were investigated.The result shown that PAM can significantly improve the settlement and clarification of mud water in sand washing,and the PAM residue in the reclaimed water increases with the increase of the dosage,and there is no obvious PAM residue accumulating in the reclaimed water with the prolongation of the recycling time.

关 键 词：机制砂 洗砂泥水 再生循环利用 絮凝剂残余 TOC 

分 类 号：TQ317.2[化学工程—高聚物工业]