文献类型：期刊文献

英文题名：Anaerobic co-digestion of low chemical oxygen demand concentration sludge mixture by different pretreatment methods

作者：Li, Qin Yin, Yi Chen, Qian Xiang, Dingding Shi, Lei Lin, Wenhai

第一作者：李琴

通信作者：Lin, WH[1];Lin, WH[2]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Guizhou Zhenhua Qunying Elect Co Ltd, State Owned 891 Factory, Guiyang, Guizhou, Peoples R China;[3]Guizhou Univ Commerce, Guiyang, Guizhou, Peoples R China;[4]Qiannan Normal Univ Nationalities, Sch Chem & Chem Engn, Duyun, Guizhou, Peoples R China

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;corresponding author), Guizhou Zhenhua Qunying Elect Co Ltd, State Owned 891 Factory, Guiyang, Guizhou, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2024

卷号：26

期号：2

外文期刊名：GLOBAL NEST JOURNAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001251299200030)】；

语种：英文

外文关键词：Anaerobic digestion; manure; sewage sludge; excess activated sludge; biogas; low cod concentration

摘要：Three laboratory scale systems were operated to study the anaerobic co -digestion of sewage sludge with the excess activated sludge and cattle manure which contained low Chemical oxygen demand (COD) concentration. The experiments were performed to evaluate the effects of different methods of pretreatment. Since the poor organic substrate, the organic loading rate (OLR) was designed about 1.6kg total solids (TS) (l d) -1 and the hydraulic retention time was controlled from 78days to 53days throughout the experiment to investigate the effects of the input on overall stability. When the digesters got stabilized, the COD removal efficiencies were 61%, 89% and 54%, respectively, and the pH value fluctuated little in the three digesters. The results indicated that the treatment of 1g volatile solids (VS) of SSEASCM on semi -continuous co -digestion generated more than 200ml of biogas on average. Thus, anaerobic co -digestion of the mixed sludge provided a means for low COD waste treatment and produced renewable energy.