title: [Characteristics of thermophilic ASBR treating thermal-hydrolyzed sewage sludge].
abstract: The characteristics of thermophilic anaerobic sequencing batch reactor (ASBR) treating thermal-hydrolyzed sewage sludge were investigated. The results showed that increasing the OLR (COD) of the thermophilic ASBR treating thermal-hydrolyzed sewage sludge from 7.762 kg/(m3 x d) to 13.106 kg/(m3 x d) lead to the "acidification" of the reactor with the accumulation of the volatile fatty acid (VFA) and the drop of the pH and gas production. This acidification is recoverability. The OLR(COD) of the thermophilic ASBR treating thermal-hydrolyzed sewage sludge can reach to 10 kg/(m3 x d) after the system was recovered. Under the OLR(COD) of 2.523, 4.196, 7.762 and 10.091 kg/(m3 x d), the methane yield (CH4/COD(input)) of thermophilic ASBR were 250, 247, 219 and 187 mL respectively. There are significant linear relationship among OLR and MPR, the methane yield. With the increase of the OLR, the methane production rate increased while the methane yield reduced.
authors.affiliation: School of Civil Engineering and Architecture, Nanchang University, Nanchang 330031, China. oyem02@mails.tsinghua.edu.cn
authors.forename: Er-Ming
authors.initials: EM
authors.lastname: Ouyang
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
mesh_terms: D000693:Anaerobiosis; D019149:Bioreactors; D006358:Hot Temperature; D008697:Methane / Q000032:analysis / Q000378:metabolism; D009930:Organic Chemicals / Q000032:analysis; D012722:Sewage / Q000737:chemistry* / Q000382:microbiology; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D009930:Organic Chemicals; D012722:Sewage; D008697:Methane