钛基石墨烯涂层电极电化学氧化垃圾渗滤液MBR出水及膜浓缩液的研究  

Electrochemical Oxidation of Landfill Leachate MBR Effluent and Membrane Concentrate with Titanium Based Graphene Coated Electrode

作　　者：陈云 赵剑锋 黄宇圣 濮梦婕 CHEN Yun;ZHAO Jian-feng;HUANG Yu-sheng;PU Meng-jie

机构地区：[1]深圳能源资源综合开发有限公司 [2]温州大学生命与环境科学学院

出　　处：《节能与环保》2022年第5期75-77,共3页

基　　金：国家自然科学基金青年科学基金项目(No.51908127);国家重点研发计划项目(No.2018YFE0110400)的资助。

摘　　要：本文探究了钛基石墨烯涂层电极电催化氧化处理垃圾渗滤液MBR出水、纳滤膜(NF)浓缩液、反渗透膜(RO)浓缩液的效果及最佳工艺运行参数。结果表明:钛基石墨烯涂层电极相比传统电极更具优势,在水温低于40℃,电流密度为133.3A/m^(2),相应的水力停留时间和循环比运行参数下,石墨烯涂层电极电催化氧化处理垃圾渗滤液MBR工艺产水、NF浓水、和RO浓水均取得良好的COD降解效果,并可显著提高其生化性,但其TN去除效果不佳,经电催化氧化后需进一步生化脱氮处理才能达标排放。本文为当前解决垃圾渗滤液的全量达标排放提供了一种可行的方案。This paper explores the effect and optimal process operation parameters of electrocatalytic oxidation of titanium based graphene coated electrode in the treatment of landfill leachate MBR effluent,nanofiltration membrane(NF)concentrate and reverse osmosis membrane(RO)concentrate.The results show that the titanium based graphene coated electrode has more advantages than the traditional electrode.When the water temperature is lower than 40℃,the current density is 133.3 A/m^(2),the corresponding hydraulic retention time and circulation ratio operating parameters,the graphene coated electrode electrocatalytic oxidation treatment of landfill leachate MBR process water,NF concentrated water and RO concentrated water has achieved good COD degradation effect,and can significantly improve its biochemistry,but its TN removal effect is poor,After electrocatalytic oxidation,further biochemical denitrification treatment is required to meet the discharge standard.This paper provides a feasible scheme for solving the full discharge of landfill leachate.

关 键 词：垃圾渗滤液 电催化氧化 膜浓缩液 可生化性 电极 

分 类 号：X703[环境科学与工程—环境工程]