PN/A工艺快速实现老龄垃圾渗滤液脱氮中试研究  

Rapid Start-up of a Pilot-scale PN-Anammox Process for Nitrogen Removal from Aged Landfill Leachate

作　　者：张献旭 奚士锋 桂林涛 史茜茜 陈振国 范俊豪 汪晓军 ZHANG Xian‑xu;XI Shi‑feng;GUI Lin‑tao;SHI Qian‑qian;CHEN Zhen‑guo;FAN Jun‑hao;WANG Xiao‑jun(Wuhan Environment Investment Solid Waste Co.Ltd.,Wuhan 430000,China;School of Environment,South China Normal University,Guangzhou 510006,China;School of Environment and Energy,South China University of Technology,Guangzhou 510006,China)

机构地区：[1]武汉环投固废运营有限公司,湖北武汉430000 [2]华南师范大学环境学院,广东广州510006 [3]华南理工大学环境与能源学院,广东广州510006

出　　处：《中国给水排水》2024年第13期68-72,共5页China Water & Wastewater

基　　金：2024年广州市科技计划项目(2024B03J1278)。

摘　　要：以某垃圾填埋场老龄垃圾渗滤液为处理对象,构建了一套前置亚硝化反硝化-部分亚硝化(PN)/厌氧氨氧化(A)工艺的中试系统,探究其对该老龄垃圾渗滤液低碳脱氮处理的快速启动与适用性。结果表明,在已有培养成熟的厌氧氨氧化菌种基础上,该中试系统仅用23 d就达到了15 kg/d的氨氮去除量;通过前置反硝化去除渗滤液中的大部分可生化有机物后,系统对老龄垃圾渗滤液中氨氮、总氮和COD的平均去除率分别可达到95.1%、94.3%、67.9%;经济核算结果表明,该工艺的处理成本(以去除NH_(4)^(+)-N计)仅为9.3元/kg,远低于硝化-反硝化工艺。This paper constructed a pilot-scale system consisting of pre-nitritation/denitrification,partial nitritation(PN) and Anammox(A),and investigated its rapid start-up and applicability for removing nitrogen in the aged landfill leachate with low organic pollutants concentration from a landfill.Seeded with existing mature Anammox bacteria,the pilot system achieved a removal of 15 kg/d ammonia nitrogen in just 23 days.After pre-denitrification to remove most of the biodegradable organic pollutants in the leachate,the average removal rates of ammonia nitrogen,total nitrogen,and COD from the aged landfill leachate reached 95.1%,94.3% and 67.9% respectively.The economic calculations showed that the treatment cost of this process was only 9.3 yuan/kg,which was significantly lower than that of the nitrification-denitrification process.

关 键 词：老龄垃圾渗滤液 亚硝化反硝化 厌氧氨氧化 快速启动 

分 类 号：TU992[建筑科学—市政工程]