脉冲曝气条件下EPS和SMP的产出规律研究  

Production of EPS and SMP under Pulse Aeration Conditions

作　　者：陈娇[1] 李冰 张勇[1,3] 叶碧莹 张显球 CHEN Jiao;LI Bing;ZHANG Yong;YE Bi-ying;ZHANG Xian-qiu(Department of Environmental Science and Engineering,Nanjing Normal University,Nanjing 210023,China;Jiangsu Province Key Laboratory of Environmental Engineering,Nanjing 210029,China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China)

机构地区：[1]南京师范大学环境科学与工程系,江苏南京210023 [2]江苏省环境工程重点实验室,江苏南京210029 [3]江苏省地理信息资源开发与利用协同创新中心,江苏南京210023

出　　处：《中国给水排水》2018年第19期76-80,共5页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51208266);江苏省自然科学基金资助项目(BK2012453);江苏省环保科研课题(2013014);江苏省环境工程重点实验室开放课题(KF2014007);江苏高校优势学科建设工程资助项目(164320H116)

摘　　要：研究了脉冲曝气方式(曝气5 min/停曝10 min)对活性污泥胞外聚合物(EPS)和出水溶解性微生物产物(SMP)的影响。结果表明:与连续曝气相比,脉冲曝气减少了EPS和SMP的产出,且EPS和SMP含量变化整体呈正相关。脉冲曝气下EPS在较高泥龄(SRT)下的含量高于较低SRT时的,占EPS组成大部分的TB-EPS含量随着SRT的延长而增加,LB-EPS含量则变化较小;SMP受SRT变化影响不大,但由于低SRT时蛋白质容易富集,所以较高SRT时出水SMP的含量略低于较低SRT时的。The formation of the al products （SMP） were investigated extracellular polymeric in pulse aeration mode substances （EPS） and （ aerobic/anoxic was 5 the soluble microbi- min/10 rain）. The results showed that the pulse aeration mode decreased the formation of EPS and SMP, in comparison with the continuous aeration mode. A positive correlation was demonstrated between the contents of EPS and SMP. The content of EPS was higher at longer SRT than shorter SRT under the pulse aeration mode. TB- EPS, which constituted most of EPS, increased with the extension of SRT, while the level of LB-EPS re- mained stable. SMP was insensitive to SRT. However, SMP was slightly lower at longer SRT because protein was easily enriched under shorter SRT.

关 键 词：脉冲曝气 胞外聚合物 溶解性微生物产物 污泥停留时间 

分 类 号：TU992.3[建筑科学—市政工程]