CIESC Journal

• 资源与环境工程 • 上一篇    下一篇

H2O2/O3体系处理反渗透浓缩垃圾渗滤液

郑 可1,周少奇1,2,3,杨梅梅1   

  1. 1华南理工大学环境科学与工程学院,广东 广州 510006;2华南理工大学亚热带建筑科学国家重点实验室,广东 广州 510640;3广东省教育厅环境保护与生态修复重点实验室,广东 广州 510006
  • 出版日期:2011-11-05 发布日期:2011-11-21

Degradation of concentrated landfill leachate rejected by reverse osmosis in H2O2/O3 system

ZHENG Ke1,ZHOU Shaoqi1,2,3,YANG Meimei1   

  1. 1College of Environmental Science and Engineering,South China University of Technology,Guangzhou 510006,Guangdong,China;2State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,Guangdong,China;3Key Laboratory of Environmental Protection and Eco-remediation of Guangdong Regular Higher Education Institutions,South China University of Technology,Guangzhou 510006,Guangdong,China
  • Online:2011-11-05 Published:2011-11-21

摘要:

采用H2O2/O3体系处理经反渗透膜处理后的浓缩垃圾渗滤液,比较了H2O2/O3体系和单独H2O2和单独O3处理浓缩液;并考察了体系初始pH值、O3投量、H2O2投量对H2O2/O3体系降解浓缩液的色度、腐殖酸以及COD的去除的影响;以及考察了H2O2/O3体系对浓缩液中大分子的胡敏酸(HA)以及中等分子量的富里酸(FA)的去除,并通过E250/E365E2/E3)和E240/E420E2/E4)的变化表征腐殖酸的腐殖度的变化。结果表明:H2O2/O3体系的处理效果远好于单独H2O2和单独O3处理;pH值为8.0O3投量为5.02 g/hH2O2投量为90 mmol/L、反应时间为30 min时,H2O2/O3体系处理浓缩液的色度、腐殖酸和COD的去除率分别达到97.72%88.85%74.54%O3/H2O2氧化体系对HA的去除率高于FA,且经过O3/H2O2氧化体系处理后浓缩液中腐殖酸分子量降低,腐殖化程度降低。

Abstract:

Concentrated landfill leachate rejected by reverse osmosisROwas oxidized in H2O2/O3 system. Performances of H2O2/O3 oxidationH2O2oxidation and O3 oxidation were compared. The effects of initial pHO3 dosage and H2O2 dosage on the removal of colorhumic substances and COD were investigated. And the degradation of humic acidHAand fulvic acidFAwere studiedE250/E365E2/E3and E240/E420E2/E4were used to evaluate the degree of humification. The results demonstrated that for the removal efficiencies of colorhumic substances and COD were achieved 97.72%88.85% and 74.54% respectively at initial pH 8.0O3 dosage 5.02 g/LH2O2 dosage 90 mmol/Lreaction time 30 min. The removal efficiency of HA was obviously higher than that’s of FAand the degree of humification was reduced.