铁碳微电解基质强化人工湿地污染物去除率的室内模拟实验  

Indoor Simulation Experiment on Pollutant Removal Rates by Micro-electrolysis Material Intensified Constructed Wetland

作　　者：陈欣[1,2] 祝惠 阎百兴[1] 周卿伟[3] 于翔霏 于婧 CHEN Xin;ZHU Hui;YAN Baixing;Zhou Qingwei;YU Xiangfei;YU Jing(Key Laboratory of Wetland Ecology and Environment,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun 130102,Jilin,P.R.China;University of Chinese Academy of Sciences,Beijing 100049,P.R.China;Hangzhou Dianzi University,Hangzhou 310018,Zhejiang,P.R.China)

机构地区：[1]中国科学院湿地生态与环境重点实验室、中国科学院东北地理与农业生态研究所,吉林长春130102 [2]中国科学院大学,北京100049 [3]杭州电子科技大学,浙江杭州310018

出　　处：《湿地科学》2018年第5期684-689,共6页Wetland Science

基　　金：国家重点研发计划项目(2016YFC0504404-4);国家自然科学基金项目(41471406);中国科学院青年创新促进会项目(2017274)资助

摘　　要：通过人工湿地模拟实验,对比研究了铁碳微电解强化人工湿地和普通人工湿地对废水中氨氮、硝态氮、总磷和化学需氧量的去除效果。研究结果表明,铁碳微电解强化人工湿地水中溶解氧含量和氧化还原电位都在第1天减小,之后随着水力停留时间的延长而上升,且都高于普通人工湿地。当水体停留时间为6 d时,铁碳微电解强化人工湿地对氨氮、硝态氮、总磷和化学需氧量的去除率分别为96.00%、97.44%、97.46%和86.12%,分别比普通人工湿地高5.21%、3.35%、13.59%和22.96%,添加铁碳微电解材料可以提高人工湿地对氨氮、硝态氮、总磷和化学需氧量的去除率。In this study, the removal efficiencies of ammonia nitrogen, nitrate nitrogen, total phosphorus and chemical oxygen demand in ferric-carbon micro-electrolysis material intensified constructed wetland and ordinary constructed wetland were compared. The results showed that the content of dissolved oxygen and oxidation-reduction potential in effluent water of the ferric-carbon micro-electrolysis material intensified constructed wetland generally decreased at the beginning（the first day） and then increased, and both of them were higher than those in ordinary constructed wetland with the increasing hydraulic retention time. When the hydraulic retention time was 6 days, the removal efficiencies of ammonia nitrogen, nitrate nitrogen, total phosphorus and chemical oxygen demand in ferric-carbon micro-electrolysis material intensified constructed wetland were 96.00%, 97.44%, 97.46% and 86.12%, respectively, which were 5.21%, 3.35%, 13.59% and22.96% higher than those in ordinary constructed wetland. This observation demonstrated that ferric-carbon micro-electrolysis material intensified constructed wetland can be used as an alternative technology to enhance the efficiency of constructed wetlands for ammonia nitrogen, nitrate nitrogen, total phosphorus and chemical oxygen demand removal.

关 键 词：人工湿地 铁碳微电解 氮 磷 化学需氧量 

分 类 号：X703[环境科学与工程—环境工程]