摘要
采用1、2、3 cm极板间距的3个厌氧单室电生物反应器对甲基橙废水中污染物进行降解实验。结果表明,1、2、3 cm的极板间距甲基橙脱色速率常数k_1(1.253 h^(-1))>k_2(1.135 h^(-1))>k_3(0.801 h^(-1)),COD去除率2 cm极板间距的反应器(54.2%)比1 cm(39.2%)、3 cm(43.8%)高。1 cm极板间距的反应器阴极电位降低最快且最低,而2 cm极板间距的反应器中电流密度最大,混合液ORP电位最低。3个电生物体系中2 cm极板间距的反应器内阻最小,生物膜活性最高。
Three anaerobic single chamber electric bioreactors with 1cm,2cm and 3cm plate spacing were used to degrade contaminants from methyl orange（MO）wastewater.Results showed that decolorization rate constants of methyl orange with 1 cm,2 cm and 3 cm plate spacing were k1（1.253 h^-1）k2（1.135 h^-1）k3（0.801 h^-1）.The COD removal rate in one cycle of 2 cm plate spacing reactor（54.2%）was higher than 1 cm（39.2%）and 3 cm（43.8%）.It was found that cathode potential of the 1cm plate reduced fastest and was the lowest.However,there were the largest current density and the lowest mixed solution ORP in 2 cm plate spacing reactor.And 2 cm plate spacing reactor had the smallest internal resistance and the highest biofilm activity in three electric-biological systems.
作者
丁小洋
程方
张景丽
胡保安
胡佳
蔡耀娜
DING Xiaoyang;CHENG Fang;ZHANG Jingli;HU Bao＇an;HU Jia;CAI Yaona(School of Enviranrrvental and Municipal Engineering, Tianjin Chengiian University, 300384;Tianjin Key Laboratory of Aquatic Science and Technology, 300384;CCCC-TDC Environmentol Engineering Co.. Ltd, 300451： Tianiin. China)
出处
《水处理技术》
CAS
CSCD
北大核心
2018年第5期70-74,共5页
Technology of Water Treatment
基金
国家自然科学基金项目(51078265)
天津市水质科学与技术重点实验室开放研究基金资助项目(TJKLAST-PT-2016-07)
天津城建大学科技成果转化奖励专项资金项目(KJZH-A2-1718)
关键词
甲基橙废水
极板间距
电极电位
氧化还原电位
生物膜
methyl orange wastewater
plate spacing
electrode potential
redox potential
biofilm
