PACS的形态及电导特性研究  

MORPHOLOGY AND ELECTRlCAL CONDUCTIVITY OF PACS

作　　者：高宝玉[1] 艾子萍[1] 于慧[1] 岳钦艳[1] 

机构地区：[1]山东大学环境科学中心,山东大学实验中心,山东大学胶体与界面化学研究所

出　　处：《环境科学学报》1994年第3期301-307,共7页Acta Scientiae Circumstantiae

摘　　要：借助于透射电镜技术观察了ＰＡＣＳ的聚合形态考察了电导率随碱化度（ｒ）．加入的摩尔比及熟化时间的变化情况，研究了熟化时间对ＰＡＣＳ电中和能力及絮凝效果的影响。实验结果表明的加入可提高聚合氯化铝的聚合度，ＰＡＣＳ聚合物的聚合度随着ｒ的提高及熟化时间的增长而增大，ＰＡＣＳ的电中和能力随着熟化时间的延长而下降，ＰＡＣＳ溶液（Ａｌ￣（１＋）含量为０．１８ｍｏｌ／Ｌ）的电导在摩尔比为１２时达最大值，并且随着熟化时间的延长出现先升高后下降的趋势。Polyaluminum chlorides with sulfate ion(PACS)were prepared by using AICl_3·6H_2O, Al_2(SO_4)_3·18H_2O and Na_2CO_3 as raw materials. The effects of basicity(r)molar ratio and aging time on the morphology of PACS were observed by transnmission electron microscope,The influence of aging time on charge neutralization and coagulation effect of PACS was studied.The effects of basicity(r)molar ratio and aging time on the electrical conductivity of PACS solution were also investigated.The experiimental results show that the degree of polymerization of polyaluminium chloride(PAC)increases when ion is added.The higher the basicity(r)and the longer the aging tilne,the larger the size of polymer PACS.The ability of PACS neutralizing the charge on Kaolinite decreases with the inc rease of the aging tilme.The electrical conductivity of PACS solution(the concentration of A1￣(3+) ion is 0.1 8mol/L)with different aging time is the function of the basicity and molar ratios and has its maxirnum at r=0.5 and

关 键 词：水处理 PACS 聚合形态 透射电镜 电导 絮凝 

分 类 号：TQ085.4[化学工程]