文献类型：期刊文献

中文题名：SBR反应器中好氧颗粒污泥的同步脱氮除碳特性

英文题名：Simultaneous Nitrogen and Carbon Removal by Aerobic Granular Sludge in SBR

作者：刘莉莉[1];王志平[2];蔡伟民[2]

机构：[1]华东理工大学资源与环境工程学院国家环境保护化工过程环境风险评价与控制重点实验室,上海200237;[2]上海交通大学环境科学与工程学院,上海200240

年份：2010

卷号：26

期号：21

起止页码：113

中文期刊名：中国给水排水

外文期刊名：China Water & Wastewater

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目(50778110;41001316);上海市重点学科项目(B506);上海市晨光计划项目(2007CG39);上海市自然科学基金资助项目(09ZR1407700);中央高校基本科研业务费专项资金资助项目(WB0914041)

语种：中文

中文关键词：序批式反应器;好氧颗粒污泥;同步脱氮除碳

外文关键词：SBR; aerobic granular sludge; simultaneous nitrogen and carbon removal

摘要：以葡萄糖好氧颗粒污泥为接种污泥,通过调整序批式反应器(SBR)的运行周期、COD/N值以及好/厌氧条件,培养、驯化出了结构紧密、沉降性能良好的脱氮颗粒污泥。在COD负荷为1 600 mg/(L.d)、氨氮负荷为530 mg/(L.d)的条件下,颗粒污泥对COD及氨氮的去除率分别达到96.55%和97.29%。研究表明,运行周期内系统对氨氮的去除可分为两个阶段,即COD与氨氮快速去除的富营养阶段和慢速硝化的贫营养阶段。脱氮颗粒污泥内由于受传质限制而导致营养基质和溶解氧在空间上的浓度梯度,使得脱氮颗粒污泥内可能同时存在异养菌及硝化与反硝化微生物。尽管该颗粒污泥内可能存在一定的溶解氧受限区域,但其剖面的扫描电镜照片显示其间的微生物近似均匀分布,没有严格的好/厌氧区域划分或明显的孔洞。
Using glucose-fed aerobic granules as the inoculum, the successful cultivation of nitrogen removal granules with compact structure and good settleability were carried out by adjusting the operation cycle of sequencing batch reactor （SBR） , COD/N ratio and aerobic/anaerobic condition. Under the operation conditions of COD loading rate being 1 600 mg/（ L· d） and ammonia nitrogen loading rate being 530 mg/（L·d） , the removal rates of COD and ammonia nitrogen are 96.55% and 97.29% respectively. The research shows that ammonia nitrogen removal in each cycle can be divided into two phases, which are the eutrophic phase with fast removal of COD and ammonia nitrogen and the oligotrophic phase with slow nitrification. Because of the limitation of mass transfer in nitrogen removal granules, the concentration gradient of substrate and dissolved oxygen might exist in granules. Thus heterotrophic, nitrifying and denitrifying populations can co-exist in the nitrogen removal granules. Although granules are suffered from dissolved oxygen transfer limitation, the observation of the section of granules with SEM shows that microorganisms in granules are distributed homogeneously, and there are not strict aerobic and anaerobic zone and any distinct holes in nitrogen removal granules.