两级UASB-SBR工艺处理垃圾渗滤液启动研究  

Start Up of Two-stage Up-flow Anaerobic Sludge Blanket and Sequencing Batch Reactor in Treating Municipal Landfill Leachate

作　　者：王淑莹[1] 时晓宁[1,2] 王希明[1] 孙洪伟[1] 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100124 [2]中国中轻国际工程有限公司,北京100026

出　　处：《北京工业大学学报》2010年第7期971-976,共6页Journal of Beijing University of Technology

基　　金：'十一五'国家科技支撑计划重点项目(2006BAC19B03);北京市教委科技创新平台项目(PXM2008-014204-050843);北京市属高等学校学术创新团队(PHR(IHLB));北京市自然科学基金重点项目(8091001);国家自然科学基金资助项目(50978003)

摘　　要：为了实现生活垃圾渗滤液的高效脱氮,采用两级UASB-SBR组和工艺处理实际垃圾渗滤液进行试验研究.本系统启动阶段共经历75d,通过对原渗滤液不同比例的稀释,分4个阶段逐步提高进水浓度,ρCOD从3.5g/L提高到12g/L,ρ(NH4+-N)从0.2g/L提高到1.1g/L,启动成功后实现了有机物及氨氮的深度去除.SBR采用硝化出水回流的运行方式,对原水既有一定的稀释作用,又可使富含NOx-N的硝化液借助原水中丰富的有机碳源在缺氧UASB内进行反硝化,实现生物脱氮及降解有机物的双重目的,最终ηCOD稳定在95%以上,η(NH4+-N)可达99%左右,ηTN达到85%以上,出水剩余ρTN低于15g/L.A two stage up-flow sludge blanket（UASB） and sequencing batch reactor（SBR） system was used to treat municipal landfill leachate and took high efficiency in the removal of nitrogen.Raw leachate was diluted with tap water in different proportions and the influent was increased by four phases,high-efficiency treatment was achieved when start-up was finished.In the study,the UASB1 has two significant effects：firstly,denitrification reaction of high efficiency was conduct for SBR nitrified effluent recirculated by using the abundant organic matters in the raw leachate as carbon source,secondly,it removal COD highly effectively by anaerobic biodegradation.When COD concentration was from 3.5 g /L to 12 g /L,COD rem 1.20 g /L,the effluent NH 4＋ N removal efficiency was maintained around 99%.Besides,total nitrogen（TN） removal efficiency could reach 85% with the effluent TN lower than 15 mg /L.

关 键 词：垃圾渗滤液 两级UASB-SBR 启动 高氨氮 

分 类 号：X703.1[环境科学与工程—环境工程]