微波诱导铬渣催化氧化降解甲基橙溶液的研究  

Study on Microwave Induced Catalytic Degradation of Methyl Orange Solution with Chromate Residue

作　　者：高宇[1] 刘作华[2] 

机构地区：[1]重庆工商大学环境与生物工程学院 [2]重庆大学化学及化工学院,重庆400045

出　　处：《压电与声光》2006年第3期328-330,共3页Piezoelectrics & Acoustooptics

基　　金：重庆市教委科学技术研究基金会基金资助项目(050711)

摘　　要：采用微波-铬渣法、微波-铬渣-H2O2法处理甲基橙溶液。研究了铬渣用量、溶液初始pH值、微波辐照时间、处理后放置时间等因素对溶液TOC去除率的影响。研究表明，对于150mL的TOC浓度为200mg／L的甲基橙溶液，铬渣用量为1g，H2O2（30％）用量为1mL，溶液初始pH值在4～10范围内，微波功率80W，微波辐照3min，TOC去除率可达80％o，处理后放置足够长时间，色度去除率可达100％。处理后溶液中残留Cr（V1）浓度〈0．05mg／L。Microwave induced oxidation process with chromate residue and H2 O2 was applied to degrade methyl orange solution. The effects of chromate residue dosage, initial pH value, microwave irradiation time and placed time of the treated sample on TOC removal efficiency of the methyl orange solution was investigated. The TOC concentration of the sample was 200 mg/L and the volume was 150 mL. Under the optimum conditions： 1 g chromate residue, 1ml H2O2 （30%）, 80 W microwave power, 3 min for irradiation and pH ranged from 4-10.80% TOC removal of the sample was obtained. The color removal efficiency can be achieved to 100%, if placed enough time after microwave irradiation. The Cr（Ⅵ） concentration of the sample was reduced to less than 0.05 mg/L after treatment.

关 键 词：微波诱导氧化 铬渣 H2O2 甲基橙 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]