文献类型：期刊文献

英文题名：Effects of glucose and phenol on soluble microbial products (SMP) in sequencing batch reactor systems

作者：Huang, Guangtuan[1];Jin, Gang[1];Wu, Jinghui[1];Liu, Yongdi[1]

机构：[1]E China Univ Sci & Technol, Coll Resources & Environm Engn, Shanghai 200237, Peoples R China

年份：2008

卷号：62

期号：2

起止页码：104

外文期刊名：INTERNATIONAL BIODETERIORATION & BIODEGRADATION

收录：;EI(收录号：20083411474345);WOS:【SCI-EXPANDED(收录号:WOS:000259316900004)】；

基金：This study was financially supported by the Natural Science Foundation Committee, PR China (Grant no. 50478068).

语种：英文

外文关键词：soluble microbial products; activated sludge; biological wastewater treatments; sequencing batch reactor; molecular weight distribution

摘要：Soluble microbial products (SMP) arc ubiquitously present in the effluents of biological wastewater treatment systems. In sequencing batch reactor (SBR) systems, effects of influent concentration and temperature on the amount and the molecular weight (MW) distribution of SMP were investigated for the two substrates, glucose and phenol. The Values of effluent SMP/S-0 of phenol were higher than those of glucose at different influent concentrations and temperatures. It was found that the effluent SMP (S-e) was linearly correlated to the influent total organic carbon (TOC) (S-0) for both substrates. The slope and intercept of the equation were affected by the temperature. According to the analysis of the MW distribution, it was shown that there exists it bimodal pattern with the majority of SMP having a MW < 1 kDa or > 10 kDa. The low MW fraction (< 1 kDa) amounts to 47.3-70.4% of the effluent SMP. The high MW fraction (> 10 kDa) slightly fluctuates in the range of 21.2-32.8% of the effluent SMP. (C) 2008 Elsevier Ltd. All rights reserved.