摘要
通过不同电极电化学氧化垃圾渗沥液处理的对比研究,选择以Ti/Ru-Ir作为电极阳极材料,研究了电流密度、氯离子浓度、初始pH对电化学氧化垃圾渗沥液的影响。结果表明:电流密度为30 mA/cm2,氯离子浓度5 000mg/L,pH在8.09的情况下,电解6 h垃圾渗沥液,氨氮去除率达到100%,COD去除率为50%,UV254去除率为61.09%,垃圾渗沥液BOD/COD从0.14提高到0.22,垃圾渗沥液生化性得到极大提高。经济性分析表明垃圾渗沥液电化学处理6 h后,氨氮去除率达到100%时,单位能耗为0.08 kW.h/g。
In contrast to several different electrode, selecting Ti/Ru-Ir as the anode materials of electrochemical electrode, the influence of current density, chloride ion concentration, initial pH on waste leachate treatment by electrochemical oxidation was studied. On the condition that current density was 30 mA/cm^2, chloride ion was 5 000 mg/L, and pH was 8. 09, the results were indicated that the removal rates of NH3-N, COD, and UV254 reached 100%, 50%, and 61.09%, respectively, after 6 hours of electrolysis. BOD/COD of waste leachate was improved from 0. 14 to 0. 22, so the biodegradability of waste leachate was improved. Economic analysis showed that the energy consumption of unit NH3-N was 0. 08 kwW·h/g, when the removal rate of ammonia nitrogen was 100% after 6 hours of waste leachate electrochemical treatment.
出处
《环境卫生工程》
2012年第5期27-29,33,共4页
Environmental Sanitation Engineering
基金
国家水体污染控制与治理科技重大专项(2008ZX07211-006)
关键词
垃圾渗沥液
电化学
氨氮
电流密度
waste leachate
electrochemistry
ammonia nitrogen
current density
