应急处理苯胺污染水源水的粉末活性炭吸附工艺的研究  

Powdered activated carbon adsorption for emergency treatment of aniline contamination

作　　者：傅金祥[1] 王锋[1] 李敬宝[1] 池福强[1] 

机构地区：[1]沈阳建筑大学市政与环境学院,辽宁沈阳110168

出　　处：《环境污染与防治》2007年第9期689-692,703,共5页Environmental Pollution & Control

基　　金：辽宁省自然科学基金资助项目(No.20062004);沈阳建筑大学省级重点实验室开放基金资助项目(No.HJ-200604)

摘　　要：以浑河水为原水,模拟突发苯胺污染,通过投加粉末活性炭（PAC）进行应急处理的试验研究。试验结果表明：PAC对苯胺的吸附在30 min内能达到80%~90%的吸附容量;PAC对苯胺的吸附等温线符合弗兰德里希（Freundlich）吸附模式,在苯胺的平衡质量浓度为0.030 mg/L时,PAC对其吸附容量约为5 mg/g;比表面积较大的木屑炭对苯胺的吸附效果比煤质炭好,但粒度以300目左右为宜;炭浆浓度越小对苯胺的吸附效果越好;溶液pH以不小于5为最好;絮凝剂最佳的投加顺序是先投加炭浆然后投加絮凝剂;对突发的浑河水苯胺污染,在取水口处投加PAC是十分有效的应急处理措施。Laboratory adsorption isotherms runs were performed to determine the feasibility of powdered activated carbon （PAC） adsorption for removing aniline in emergency treatment. PAC removed aniline from the Hun River sample quickly and that 80%～90% of its capacity was attained in 30 min. The experimental adsorptive capacity vs. residual （equilibrium） concentration data were well represented by the Freundlich adsorption isotherm model; the adsorptive capacity of 5 mg aniline/g was found at an aniline concentration of 0. 030 mg/L. The PAC with a high specific surface area exhibited a high capacity for aniline; the highest capacity was found using PAC of 300 mesh and at a pH≥5. Adding PAC 10～30 min before adding coagulant produced more desirable results. The study results have demonstrated that adding PAC at the influent to the water treatment plant is an effective emergency measure for removing aniline when its concentration in the water supply exceeds the high end of the acceptable range.

关 键 词：苯胺 应急处理 浑河 粉末活性炭 吸附 

分 类 号：X52[环境科学与工程—环境工程]