摘要
作为全球性的水体污染物,近年来氮素的去除受到越来越多的重视。传统的脱氮工艺通常有不同程度的脱氮费用较高、容易产生二次污染、需要后续处理工艺等缺点。近年来,基于微生物电化学系统(BES)的脱氮过程因具有能耗低,剩余污泥产生量少,以及可同时脱氮脱盐等多种优势,正越来越被各界关注。作者从BES反应器结构、电极材料选型以及不同操作条件(pH、DO、碳源类型和C/N)等三个方面进行阐述,并提出这一领域未来可能的研究方向。
As one of the main water pollutants,the nitrogen removal from wastewater has been increasingly considered.Generally,traditional nitrogen removal process would lead to the highly cost,secondary pollution and the successive treatments.In contrast,the newly arising bioelectrochemical system （BES） based wastewater denitrification was being widely concerned,due to its energy saving,less sludge production,capable of simultaneous denitrification ＆ desalination.In this study,three possible aspects as the configuration of BES reactor,the selection of electrode material and the optimization of BES operating parameters were all summarized and then compared.To further push the pilot application of BES based nitrogen removal,there is still a lot to do,such as to better the electron transfer efficiency,and to cut down the reactor manufacturing and operating costs.
出处
《食品与生物技术学报》
CAS
CSCD
北大核心
2014年第5期449-454,共6页
Journal of Food Science and Biotechnology
基金
科技部水体污染控制与治理科技重大项目(2011ZX07301-002)
江苏省自然科学基金项目(BK2012558)
江苏省高校科研成果产业化项目(JHB2011-29)
关键词
微生物电化学系统
废水
脱氮
影响因素
bioelectrochemical systems
wastewater
nitrogen removal
influencing factors
