DNP-MSBR工艺中生物膜硝化能力对缺氧除磷的影响  

Affecting Study of the Aerobic Nitrifying Ability to the Denitrifying Phosphorus Removal Efficiency in the DNP-MSBR Process

作　　者：吉芳英[1] 杨肃博[1] 高茜[1] 张良金[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2006年第8期1-5,共5页Journal of Chongqing University

基　　金：国家自然基金资助项目(50278101);国家十五科技攻关项目(2003BA808A15-2-1)

摘　　要：对DNP—MSBR工艺中生物膜硝化区的挂膜启动、硝化影响因素、出水NO3^- -N产率、系统中同步硝化反硝化现象进行了分析，从而得出好氧区硝化能力对缺氧区反硝化除磷效果的影响．结果表明，保证生物膜硝化反应区氨氮负荷小于0．12kg／m^3·d，COD负荷小于0．5kg／m^3·d，D0为5～6mg／L时，可以减弱硝化区好氧反硝化脱氮现象发生，保证硝化系统硝酸盐产率，使得DNP—MSBR工艺中缺氧区取得较好的反硝化除磷效果．The startup,nitrifying ability and the affect factors of the organic membrane reactor in the DNP-MSBR process are investigated , while the analysis of how to improve the nitrate proportion, reduce the simultaneous nitrification and denitrification in the membrane reactor have been done. The result obtained demonstrates that keeping the ammonia nitrogen burden below 0.12 kg/m^3 · d,COD burden below 0.5 kg/m^3 · d,DO on the 5 -6 mg/L in the nitrifying section, the average removal proportion of the ammonia nitrogen can be obtain more than 90% , besides the simultaneous nitrification and denitrfication can be extremely reduced and the nitrate proportion will be guaranteed, all of these make the DNP-MSBR process achieve good performance on the denitrifying phosphorus removal efficiency.

关 键 词：DNP—MSBR 反硝化除磷 硝酸盐产率 

分 类 号：X703.1[环境科学与工程—环境工程]