污泥基活性炭的制备及其吸附水中Cr^(6+)性能研究  

Preparation of Sludge Based Activated Carbon and its Adsorption Performance for Cr^(6+) in Water

作　　者：晨曲 任杰 Chen Qu;Ren Jie(Hohhot Minzu College,Hohhot Inner Mongolia 010051,China)

机构地区：[1]呼和浩特民族学院,内蒙古呼和浩特010051

出　　处：《山西化工》2024年第7期222-224,共3页Shanxi Chemical Industry

基　　金：内蒙古自治区高等学校科学研究项目(NJZY20359)。

摘　　要：选用城市污水厂剩余污泥制备活性炭,以氯化锌为活化剂,通过管式炉、微波消解仪两种仪器分别活化,运用二苯碳酰二肼分光光度法(GB 7466—87)探究其对六价铬的吸附性能。结果显示,微波消解仪制备的活性炭吸附性能非常好,1 g污泥活性炭在50 mL初始质量浓度为0.2μg/mL的六价铬溶液中吸附率高达91%,吸附量高达9.1μg/g。这种新型污泥基活性炭制备工艺,解决了污水厂剩余污泥处理问题的同时做到了资源再利用,对环境保护起到深远影响。In this paper,the activated carbon was prepared from the excess sludge of municipal wastewater treatment plant,and activated with zinc chloride as activating agent by tube furnace and microwave digestion instrument,the adsorption of hexavalent chromium by diphenylcarbazide spectrophotometer(GB7466-87)was studied.The results showed that the adsorption capacity of activated carbon prepared by microwave digestion apparatus was very good.The adsorption rate of activated carbon from 1 g sludge was as high as 91%and the adsorption capacity was as high as 9.1μg/g in 50 mL of CR(VI)solution with an initial concentration of 0.2μg/mL.This new activated carbon preparation process not only solves the problem of residual sludge treatment,but also reuses the resource,which has a far-reaching impact on environmental protection.

关 键 词：污泥基活性炭 微波热解 吸附 铬离子 

分 类 号：X703[环境科学与工程—环境工程]