New insights into the evaluation of anaerobic properties of sludge:Biodegradability and stabilization

作     者：Jun Gao Xiaoyan Zhao Sisi Chen Bin Dong Xiaohu Dai Jun Gao;Xiaoyan Zhao;Sisi Chen;Bin Dong;Xiaohu Dai

作者机构：State Key Laboratory of Pollution Control and Resource ReuseCollege of Environmental Science and EngineeringTongji UniversityShanghai 200092China 

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

年 卷 期：2021年第33卷第2期

页      面：158-166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：Shanghai Technology Leader Program(No.17XD1420500) National Key R&D Program of China(No.2018YFC1900905)。 

主　　题：Sludge Anaerobic digestion Biodegradability Stabilization Biochemical acidogenic potential Physio-chemical characteristics 

摘      要：Evaluating anaerobic biodegradability of sludge and then identifying the stabilization of digestate is necessary in sludge treatment and disposal.48 sludge samples from 24 typical waste water treatment plants(WWTPs)in 11 provinces in China were selected to investigate the relationship between Biochemical Acidogenic Potential(BAP)test and Biochemical Methane Potential(BMP)test.The volatile fatty acid(VFA)production obtained from BAP tests was found linearly related to the ultimate methane production from corresponding BMP tests.Satisfying results were obtained with Pearson correlation coefficient as 0.929 and R^2 value as 0.76.Furthermore,the physio-chemical characteristics(FCI,SUVA254,E 4/E 6)of supernatant,which were associated with humic-like substances(HS),were investigated before and after BMP tests.Through which a new criterion(FCI1.50,SUVA 2541.10,E 4/E 64.0)was proposed to evaluate the stabilization level of anaerobic digested sludge.