探析生物炭对Anammox工艺脱氮的影响及其机理  

Influence and Mechanism of Biochar on Nitrogen Removal in Anammox Process

作　　者：胡颖斌 吴孟李 范利青 张琪雨 吴艳龙[1] 罗晓楠 HU Yingbin;WU Mengli;FAN Liqing;ZHANG Qiyu;WU Yanlong;LUO Xiaonan(Zhuhai Water Quality Monitoring Center,Zhuhai 519000,China;South China Institute of Environmental Sciences Ministry of Ecology and Envrionment,Guangzhou 510530,China)

机构地区：[1]珠海市水质监测中心,广东珠海519000 [2]生态环境部华南环境科学研究所,广东广州510530

出　　处：《净水技术》2024年第7期22-33,44,共13页Water Purification Technology

基　　金：国家自然科学基金青年基金项目(52100004);珠海市社会发展领域科技计划项目(2220004000273)。

摘　　要：厌氧氨氧化(Anammox)因其高效率和低能耗的特点,被认为是当下最有前景的生物脱氮技术。但是,Anammox工艺在主流污水处理中的应用仍面临挑战,比如厌氧氨氧化菌倍增时间长、对生长环境要求苛刻、电子受体不易获得、生物质易随水流流失等。近年来,生物炭作为一种廉价易得、具有大比表面积、表面富含官能团的环境友好型载体,在促进Anammox脱氮工艺方面受到越来越多的关注。文中从制备方法对生物炭的影响出发,总结不同生物炭类型作为Anammox脱氮工艺生物载体的特点,并通过回顾前人的研究,尝试分析生物炭作为生物载体在Anammox脱氮工艺中缩短启动时间、提高脱氮性能和减轻污染物抑制方面的作用,以期为生物炭在Anammox脱氮工艺中的大规模应用提供参考。Anaerobic ammonium oxidation(Anammox)is considered as the most promising nitrogen removal technology due to its high efficiency and low energy consumption.However,the application of Anammox process in mainstream wastewater treatment still faces challenges due to the drawback of anaerobic ammonia oxidation bacteria(AnAOB),such as long doubling time,environmental sensitivity,lack of electron receptors,poor retention of biomass.Recently,biochar as a novel and environmentally friendly carrier with low cost,high specific surface area,abundant functional groups,has attracted more and more attention for promoting Anammox process.On the basis of the effect of preparation methods on biochar characteristic,this review summarizes the role of biochar as a biological carrier in Anammox process.Meanwhile,this review attempts to analyze the effect of biochar on shorting start-up time,improving nitrogen removal performance and alleviating contaminants inhibition in Anammox process.Collectively,this review provides reference for the large-scale application of biochar in Anammox nitrogen removal process.

关 键 词：厌氧氨氧化 生物炭 胞外电子转移 表面官能团 微生物群落 

分 类 号：X703[环境科学与工程—环境工程]