Fenton-活性炭工艺预处理高浓度聚乙二醇废水研究  

Pretreatment of high concentration polyethylene glycol wastewater by Fenton-activated carbon process

作　　者：邵享文[1] 吴特锐 艾翠玲[1] 陈登极 SHAO Xiang-wen;WU Te-rui;AI Cui-ling;CHEN Deng-ji(College of Civil Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学土木工程学院,福州350108

出　　处：《工业用水与废水》2021年第3期9-13,共5页Industrial Water & Wastewater

基　　金：国家自然科学基金青年基金资助项目(51008080);福建省自然科学基金资助项目(2015J01199)。

摘　　要：为提高高浓度聚乙二醇(PEG)废水的可生化性,在传统Fenton工艺的基础上结合活性炭组成Fenton-活性炭工艺对废水进行预处理。研究了活性炭在反应体系中的作用,并以PEG的去除率和m(BOD5)/m(COD)作为评价指标,考察活性炭投加量、H2O2投加量、n(Fe^(2+))/n(H_(2)O_(2))、初始pH值对预处理效果的影响。结果表明,活性炭在反应体系中主要作为催化剂催化Fenton反应快速产生·OH,·OH的产生量与产生率均高于传统Fenton法。当活性炭投加量为0.2 g/L、H2O2投加量为1 mL/L、n(Fe^(2+))/n(H_(2)O_(2))=0.11、pH值为2.4时,PEG去除率与m(BOD5)/m(COD)分别可达72.4%和0.46,较传统Fenton法分别提升10%和32%。In order to improve the biodegradability of high concentration polyethylene glycol(PEG)waste-water,Fenton-activated carbon process which combined traditional Fenton with activated carbon was adopted for its treatment.The influences of activated carbon and H2O2 dosage,n(Fe^(2+))/n(H_(2)O_(2)) value,initial pH value on pretreatment effect were investigated.The results showed that,activated carbon was mainly used as catalyst in the system to promote Fenton reaction so as to produce·OH rapidly,the·OH amount and production speed of it were both superior to that of the traditional Fenton process.When the dosage of activated carbon and H2O2 were 0.2 g/L and 1 mL/L respectively,the n(Fe^(2+))/n(H_(2)O_(2)) value was 0.11,the pH value was 2.4,the removal rate of PEG reached 72.4%and the m(BOD5)/m(COD)value was 0.46,which were 10%and 32%higher respectively than those of traditional Fenton process.

关 键 词：FENTON 活性炭 聚乙二醇 催化剂 预处理 ·OH 

分 类 号：X703.1[环境科学与工程—环境工程]