组合芬顿工艺处理垃圾渗滤液纳滤浓缩液的试验研究  

Experimental Study on Treatment of Nanofiltration Concentrates from Landfill Leachate by Combined Fenton Processes

作　　者：李领明[1] 赵晴[2] 邱林清[3] 李久义[4] 孟了[1] 吕慧[3] LI Lingming ZHAO Qing QIU Linqing LI Jiuyi MENG Liao LYU Hui(Xiaping Municipal Solid Waste Landfill Plant Shenzhen, Guangdong 518110)

机构地区：[1]深圳市下坪固体废弃物填埋场,广东深圳518110 [2]广州大学土木工程学院,广州510006 [3]中山大学环境科学与工程学院,广州510006 [4]北京交通大学土木建筑工程学院,北京100044

出　　处：《工业安全与环保》2017年第9期8-11,共4页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(51508115);广州市属高校科技计划青年项目(理工类1201430815);2015年深圳市城管局科研课题;广州市珠江科技新星专项(201504281527416)

摘　　要：利用芬顿和光-芬顿工艺降解垃圾渗滤液纳滤浓缩液中的难降解有机物。起始pH值5.0及较低H_2O_2/Fe^(2+)投加量时,芬顿法的氧化-絮凝作用可以去除70%以上的COD。采用芬顿氧化-絮凝和光-芬顿组合工艺处理不同浓度纳滤浓缩液时,H_2O_2/Fe^(2+)投加量为35 m M/8 m M和90 m M/10 m M时均可实现90%的COD和TOC去除率;组合工艺出水COD为112~160 mg/L,BOD/COD为0.35~0.43。纳滤浓缩液中检出的13种多环芳烃经过组合工艺处理后的总去除率均约在90%。The removal of the refractory organic matters in landfill leachate nanofiltration concentrates was investigated by Fenton oxidative - coagulation and ultraviolet photo - Fenton processes in this study. Fenton oxidative - coagu- lation removed up to 70% of COD in both leachate brines at very low reagent dosages and an initial pH of 5. 0. For both landfill leachate nanofihration concentrates with varying pollution strength, more than 90 % of COD and TOC reductions were achieved at H2O2/Fe^2＋ dosages of 35 mM/8 mM and 90 mM/lO mM, respectively. The effluent COD ranged 112 - 160 mg/L, and BOD/COD values were 0.35 -0.43 which indicated the biodegradability was increased significantly. Thirteen kinds of polycyclic aromatic hydrocarbons （PAHs） were found in landfill leachate nanofihra- tion concentrates, and on the average, around 90% PAHs were removed by the combined treatments.

关 键 词：垃圾渗滤液 纳滤浓缩液 难降解有机物 芬顿氧化絮凝 光-芬顿 

分 类 号：X703[环境科学与工程—环境工程]