Technological Feasibility of Biodiesel Production from Bioaugmented Hydrolysate of Waste Sludge in a Municipal Wastewater Treatment Plant

作     者：王怡 赵景婵 曲鹏程 张百鑫 彭党聪 夏四清 

作者机构：School of Environmental and Municipal Engineering Xi’an University of Architecture and Technology College of Chemistry & Materials Science Northwest University School of Environmental Science and Engineering Tongji University 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2013年第19卷第5期

页      面：332-337页

核心收录：

学科分类：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）] 08[工学] 

基　　金：Supported by Excellent Project from Shaanxi Administration of Foreign Expert Affairs in 2011 International Cooperation Project of Shaanxi Province(No.2011KW-34) 

主　　题：waste sludge hydrolysis bioaugmentation biodiesel production feasibility 

摘      要：The hydrolysate of waste sludge was used as the feedstock of biodiesel production,and its technological feasibility was *** sludge,collected from No.3 Municipal Wastewater Treatment Plant of Xi’an,was hydrolyzed in two parallel reactors *** was added into one reactor for bioaugmentation,and the other reactor without yeast was used as a *** an acid-catalyzed in situ esterification process was carried out to convert the hydrolysate to *** results of hydrolysis showed that the reactor bioaugmented with yeast could promote hydrolysis compared with the control one because of an obvious variance in total suspended solid(TSS),volatile suspended solid(VSS)and soluble chemical oxygen demand(SCOD).Furthermore,gas chromatography(GC)analysis exhibited that the total volatile fatty acid(VFA)was low in the hydrolysate of bioaugmentation reactor;however,its yield of the fatty acid methyl esters(FAMEs)by in situ esterification was obviously higher when compared with the control ***,it may be inferred that the hydrolysate of bioaugmentation was mainly inclined to longer-chain fatty acid rather than to ***,an FAMEs yield of 9.24%(wt%)from dried sludge was attained after the 12-d bioaugmentation hydrolysis and succedent *** value was not only higher than that of the control one but also higher than that reported in previous *** above results illuminated that it was feasible to produce biodiesel from the bioaugmented hydrolysate of waste sludge.