Mesophilic batch anaerobic co-digestion of pulp and paper sludge and monosodium glutamate waste liquor for methane production in a bench-scale digester

• Published in: Bioresource technology Vol. 102; no. 4; pp. 3673 - 3678
• Main Authors: Lin, Yunqin, Wang, Dehan, Li, Qing, Xiao, Minquan
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.02.2011; [New York, NY]: Elsevier Ltd; Elsevier
• Subjects: Anaerobic co-digestion; Anaerobiosis; Applied sciences; Biodegradation, Environmental; Biological and medical sciences; Biological treatment of sewage sludges and wastes; Bioreactors; Biotechnology; Biotechnology - methods; Calcium carbonate; Digesters; Environment and pollution; Equipment Design; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; Glutamates; Hydrogen-Ion Concentration; Industrial applications and implications. Economical aspects; Industrial Waste; Industry; Methane; Methane - chemistry; Methane production; Monosodium glutamate waste liquor; Oxygen - chemistry; Paper, paperboard, non wovens; Pollution; Polymer industry, paints, wood; Polyphenylene sulfides; Pulp and paper sludge; Sewage; Sludge; Sodium Glutamate - chemistry; Temperature; Waste Disposal, Fluid - methods; Wastes; Wood. Paper. Non wovens; Anaerobic co-digestion; Pulp and paper sludge; Monosodium glutamate waste liquor; Methane production; Methane; Sewage digester; Mesophily; Paper waste; Glutamate; Sewage sludge; Anaerobic digestion
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2010.10.114

This paper presented results from anaerobic co-digestion of pulp and paper sludge (PPS) and monosodium glutamate waste liquor (MGWL). A bench-scale anaerobic digester, 10L in volume was developed, to operate under mesophilic (37±2°C) batch condition. Under versatile and reliable anaerobic conduct, high efficiency for bioconversion of PPS and MGWL were obtained in the system. The accumulative methane yield attained to 200mLg−1 VSadded and the peak value of methane daily production was 0.5m3/(m3d). No inhibitions of volatile fatty acids (VFAs) and ammonia on anaerobic co-digestion were found. pH 6.0–8.0 and alkalinity 1000–4000mg CaCO3/L were got without adjustment. This work showed that there was a good potential to the use of PPS and MGWL to anaerobic co-digestion for methane production.