H2O2/O3体系处理反渗透浓缩垃圾渗滤液

化工进展

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:2011-11-05

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

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

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:2011-11-05

摘要/Abstract

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/E₃₆₅（E₂/E₃）和E₂₄₀/E₄₂₀（E₂/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；在pH值为8.0、O₃投量为5.02 g/h、H₂O₂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%和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 osmosis（RO）was oxidized in H₂O₂/O₃ system. Performances of H₂O₂/O₃ oxidation，H₂O₂oxidation and O₃ oxidation were compared. The effects of initial pH，O₃ dosage and H₂O₂ dosage on the removal of color，humic substances and COD were investigated. And the degradation of humic acid（HA）and fulvic acid（FA）were studied，E₂₅₀/E₃₆₅（E₂/E₃）and E₂₄₀/E₄₂₀（E₂/E₄）were used to evaluate the degree of humification. The results demonstrated that for the removal efficiencies of color，humic substances and COD were achieved 97.72%，88.85% and 74.54% respectively at initial pH 8.0，O₃ dosage 5.02 g/L，H₂O₂ dosage 90 mmol/L，reaction time 30 min. The removal efficiency of HA was obviously higher than that’s of FA，and the degree of humification was reduced.

郑可1，周少奇1，2，3，杨梅梅1. H2O2/O3体系处理反渗透浓缩垃圾渗滤液[J]. 化工进展.

ZHENG Ke1，ZHOU Shaoqi1，2，3，YANG Meimei1. Degradation of concentrated landfill leachate rejected by reverse osmosis in H2O2/O3 system[J]. Chemical Industry and Engineering Progree.