Effect of high-strength ammonia nitrogen acclimation on sludge activity in sequencing batch reactor

作     者：Feifei Wang, Yuanhong Ding, Lei Ge, Hongqiang Ren, Lili Ding State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China. 

作者机构：State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing 210093 China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2010年第22卷第11期

页      面：1683-1688页

核心收录：

学科分类：090801[农学-水产养殖] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082803[工学-农业生物环境与能源工程] 0908[农学-水产] 08[工学] 0828[工学-农业工程] 09[农学] 

基　　金：supported by the Foundation of the Ministry of Education(No.WTWER0702) 

主　　题：activated sludge sequencing batch reactor high-strength ammonia nitrogen dehydrogenase activity 

摘      要：The effect of high-strength ammonia nitrogen acclimation on sludge activity in sequencing batch reactor （SBR） was investigated. Two batch experiments, RUN1 and RUN2, were conducted with the influent ammonia nitrogen concentrations 60 and 500 mg/L, respectively. The sludges inoculated from RUN1 and RUN2 were used to treat a series of influent with ammonia nitrogen concentrations of 59, 232, 368, 604 and 1152 mg/L. It is found that the activated sludge acclimated to higher ammonia nitrogen concentrations revealed higher COD and NH 4 ＋ -N removal efficiencies, and slower DHA decrease. The results confirmed that the activities of the bacteria in activated sludge in SBR were inhibited by high-strength ammonia nitrogen, whereas the activated sludge acclimated to high-strength ammonia nitrogen showed substantial resistance to inhibition by influents containing high levels of ammonia nitrogen.