Bioresource Technology 249 (2018) 694–703 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Comparison of thermophilic bacteria and alkyl polyglucose pretreatment on two-stage anaerobic digestion with waste sludge: Biogas production potential and substrate metabolism process a,b, a a a a a Liang Guo , Zengshuai Zhang , Mengchun Gao , Zonglian She , Yangguo Zhao , Yiding Guo , Jian Sun College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China Key Laboratory of Marine Environmental and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: To gain a better understanding of the inﬂuence on two-stage anaerobic digestion of waste sludge with ther- Waste sludge mophilic bacteria (TB) and alkyl polyglucose (APG) pretreatment, changing of soluble chemical oxygen demand Two-stage anaerobic digestion (SCOD), carbohydrate and protein in extracellular polymeric substances (EPS) and dissolved organic matters Thermophilic bacteria (TB) pretreatment (DOM) were analyzed. The excitation-emission matrix (EEM) with ﬂuorescence regional integration (FRI) was Alkyl polyglucose (APG) pretreatment also used to investigate compositional and structural characteristics of DOM. The highest hydrogen and methane Substrate metabolism yield of TB pretreated sludge was 12.2 ml/g VS (volatile
Bioresource Technology – Elsevier
Published: Feb 1, 2018
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