Anaerobic digestion of antibiotic residue in combination with hydrothermal pretreatment for biogas. (September 2015)

• Record Type: Journal Article
• Authors: Zhang, Guangyi; Li, Chunxing; Ma, Dachao; Zhang, Zhikai; Xu, Guangwen
• Is Part Of: Bioresource technology. Volume 192(2015)
• Page Start: 257
• Page End: 265
• Publication Date: 2015-09
• Subjects: Hydrothermal treatment -- Anaerobic digestion -- Biomass waste -- Antibiotic residue -- Biogas; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2015.05.014
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: HTPT reversed the bad anaerobic biodegradability of the CPCAR. The biogas and methane yields reached respectively 290 and 200 ml (g TS) −1 . The combination of HTPT and anaerobic digestion was technically feasible. The combination of HTPT and anaerobic digestion is energetically self-sufficient. Abstract: Antibiotic residues are difficult to be treated or utilized because of their high water content and residual antibiotics. This article is devoted to investigating the possibility of biogas production from cephalosporin C residue (CPCAR), one typical type of antibiotic residues, via anaerobic digestion in combination with hydrothermal pretreatment (HTPT). The results from the bench-scale experiments showed that the combination of HTPT and anaerobic digestion can provide a viable way to convert CPCAR into biogas, and the biogas and methane yields reached 290 and 200 ml (g TS) −1, respectively. This article further evaluated the proposed technology in terms of energy balance and technical feasibility based on theoretical calculation using the data from a pilot HTPT test. It was shown that the process is totally self-sufficient in energy and its main challenging problem of ammonia inhibition can be solved via ammonia stripping.