Biohythane production from swine manure and pineapple waste in a single-stage two-chamber digester using gel-entrapped anaerobic microorganisms. (15th July 2022)

• Record Type: Journal Article
• Authors: Nguyen, Tan-Trung; Ta, Doan-Thanh; Lin, Chiu-Yue; Chu, Chen-Yeon; Ta, Thi-Minh-Ngoc
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 60(2022)
• Page Start: 25245
• Page End: 25255
• Publication Date: 2022-07-15
• Subjects: Single-stage two-chambers -- Anaerobic fermentation -- Biohythane -- Co-digestion -- Cell-entrapped; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2022.05.259
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: A mixture of swine manure and pineapple waste was used to check the feasibility of producing biohythane in a newly-developed single-stage anaerobic fermentation system that having immobilized H2 and CH4 -producing microbes in a two-chamber digester. Tested hydraulic retention times (HRT) were from 96 h to 6 h. HRT 6 h resulted in peak gas production performance with hydrogen production rate 1240 and methane production rate 812 mL/L-d. Besides, the synergistic function of generation and consumption of volatile fatty acids in this hybrid biosystem had a significant impact on biohythane composition with acetate and butyrate being the dominant liquid metabolites. Chemical oxygen demand and ammonium removal efficiencies were 52.4 and 78.8%, respectively during steady-state conditions. Based on the experimental findings, prospects for field applications of single-stage biohythane fermentation were suggested. Graphical abstract: Image 1 Highlights: Biohythane production in single-stage digester using entrapped microorganisms. Co-digestion of pineapple waste and swine manure for biohythane generation. HRT markedly affected the biohythane fermentation performances. Peak hydrogen content in hythane was 60.5% at HRT 6 h. Peak total energy recovery reached 42.63kJ/L-d.