南京工业大学学报（自然科学版）2011，Vol.33Issue(3)：38-42,5.DOI:10.3969/j.issn.1671-7627.2011.03.008
单一反应体系曝气量与污泥质量浓度对同步硝化反硝化的影响
Effects of aeration rate and MLSS on simultaneous nitrification and denitrification in single reaction system
摘要
Abstract
A single reaction membrane bio-reactor(MBR) system with simultaneous nitrification and denitrification(SND) was constructed coupling with the hybrid cultured sludge by nitrification sludge and denitrification bacteria.The effect of aeration rate and mixed liquor suspended solids(MLSS) on the SND was studied.When the range of MLSS was 6.0-10.0 g/L in the single sludge system, the total nitrogen (TN) removal efficiency by SND reached above 85％ on the suitable aeration rate, and the best aeration rate for the maximum TN removal efficiency on different MLSS became bigger with the increasing of MLSS.A smaller response factor F, the less change of TN removal efficiency was caused by aeration rate and the stronger buffeting effect on the oxygen transfer with the increasing of MLSS.Operated in the MLSS of 8.0 g/L, higher TN removal efficiency was easy to be obtained in the low ammonia loading, but the higher aeration rate was needed for a better TN removal efficiency in the high ammonia loading.The range of ammonia loading for a suitable operation was 0-0.30 kg/(m3·d).When MLSS≥3.0 g/L, the chemical oxygen demand (COD) in effluent was below 50 mg/L, and the greater part of COD was contributed to denitrification.The system could timely respond to the change of loadings and operate stably.关键词
单污泥系统/曝气量/混合污泥质量浓度/同步硝化反硝化Key words
single reaction system/ aeration rate/ MISS/ simultaneous nitrification and denitrification分类
资源环境引用本文复制引用
陈英文,魏基业,赵冰怡,沈树宝..单一反应体系曝气量与污泥质量浓度对同步硝化反硝化的影响[J].南京工业大学学报（自然科学版）,2011,33(3):38-42,5.基金项目
国家自然科学基金资助项目(50872052) （50872052）
国家高技术研究发展计划(863计划)资助项目(2009AA05Z313) （863计划）
国家水体污染控制与治理科技重大专项资助项目(2008ZX07101-003-02-05) （2008ZX07101-003-02-05）
江苏省环保科研课题资助项目(2009002) （2009002）
江苏省自然科学基金资助项目(BK2007188) （BK2007188）
