Removal of Ammonia Nitrogen from Swine Wasterwater Using Ti/Mn-Ni/SnO2-Sb-CeO2Anode
Ti/Mn-Ni/SnO2-Sb-CeO2 anode was select among 4 self-made anodes to remove ammonia nitrogen from swine wastewater based on ammonia n itrogen removal rate index and energy consumption index when using stainless steel cathode.The effects of current density, pH and chlorine ion concentration on removal rate of ammonia nitrogen were studied when using synthetic wastewater and the removal rate of ammoninm nitrogen achieved 98.5% when treatment time was 60 min, pH was controlled in 8-10, current density was 20 mA/cm2, chlorine ion concentration was 500 mg/L, and the initial ammonia nitrogen concentration was 1000 mg/L Moreover, it is clear that ammonia nitrogen removal mainly depended on indirect oxiidation.The raw and biologically pretreated swine wastewaters were treated respectively using Ti/Mn-Ni/SnO2-Sb-CeO2 anode and Ti cathode under optimal process conditions.The results showed that ammonia nitrogen removal performance for biologically pretreated swine wastewater was more effective than that for raw swine wastewater, and ammonia nitrogen removal rate of biologically pretreated swine wastewater 95.6% which indicates that effluent ammonia nitrogen concentration could meet the 80 mg/L of requirement of discharge standard of pollutants for livestock and poultry breeding (GB18596-2001) if influent ammonia nitrogen concentration was below 1800 mg/L when using Ti/Mn-Ni/SnO2-Sb-CeO2 anodeand stainless steelcathode.
Ti/Mn-Ni/SnO2-Sb-CeO2 anode electrochemical oxidation swine wastewater ammonia nitrogen
Min Liu Guoji Ding Weibin Zhou Weiwei Zhao Rui Liu Fuming Zhang Lei Zhao
School of Environment and Chemical Engineering,Shanghai University,China School of Environment and Chemical Engineering,Shanghai University,China;Yangtze Delta Region Instit Yangtze Delta Region Institute,Tsinghua University,Zhejiang,China
国际会议
浙江嘉兴
英文
199-203
2013-10-24（万方平台首次上网日期，不代表论文的发表时间）