• Phimphaka Phothilangka โปรแกรมวิชาวิทยาศาสตร์สิ่งแวดล้อมคณะวิทยาศาสตร์ มหาวิทยาลัยราชภัฏลำปางจังหวัดลำปาง รหัสไปรษณีย์ 52100


Food waste, Feeding rates, Two-stage anaerobic digestion, Recirculation, Biogas


Two experiments were conducted succeedingly to investigate food waste potential and feeding rates on biogas production. Anaerobic digestions of food waste and glucose were carried out in the first experiment to evaluate their biochemical methane production potential. Results indicated that the high biogas production yield was obtained with the presented microbial inoculum (seed) and the used food waste. The accumulated biogas yields produced from the food waste and glucose were 0.98 and 5.82 m3/kg.COD with 55.4 and 49.2% methane contents, respectively. Effects of food waste feeding rates (0.25, 0.50, 1.0, 2.0, and 3.0 kg.COD/ using a two-stage anaerobic digestion with effluent recirculation on biogas production were investigated in the second experiment. Results revealed that the 1.0 Kg.COD/ feeding rate with effluent recirculation increased biogas and methane yields approximately 31.3% higher as compared to that without recirculation. The increased rates from 0.25 to 0.50, 1.0, and 2.0 Kg.COD/, though slightly decreased the biogas production rate (per COD unit), the accumulation of biogas yields were increased from 0.065 to 0.123, 0.221, and 0.408 m3, accordingly. However, the highest feeding rate of 3.0 Kg.COD/ with effluent recirculation dropped the accumulation biogas yield sharply to 0.019 m3. This high feeding rate would hinder the processes of acidogenic digestion and resulted in high concentration of VFA in the tested effluent. A low pH (5.2) and high ratio (1.35) of VFA/alkalinity as noted in the effluent would inhibit methanogens for methane production.


American Public Health Association. Standard methods for the examination of water and wastewater. United States: American Water Works Association. Water Environment Federation; 1995.
Angelidaki I, Sanders W. Assessment of the anaerobic biodegradability of macropollutants. Reviews in Environmental Science and Bio/Technology. 2004; 3: 117–129.
Aslanzadeh S, Rajendran K, Jeihanipour A, Taherzadeh J M. The effect of effluent recirculation in a semi-continuous two-stage anaerobic digestion system. Energies. 2013; 6: 2966-2981.
Barlaz M. A, Ham R. K, Schaefer D. M. Methane production from municipal refuse : a review of enhancement techniques and microbial dynamics. Critical Reviews in Environmental Science and Technology. 1990; 19: 557-584.
Giuliano A, Zanetti L, Micolucci F, Cavinato C. Thermophilic two-phase anaerobic digestion of source-sorted organic fraction of municipal solid waste for bio-hythane production: effect of recirculation sludge on process stability and microbiology over a long-term pilot-scale experience. Water Science & Technology. 2014; 69(11): 2200–2209.
Gottardo M, Micolucci F, Bolzonella D, Uellendahl H, Pavan P. Pilot scale fermentation coupled with anaerobic digestion of food waste - Effect of dynamic digestate recirculation. Renew. Energy. 2017; 114: 455-463.
Lindner J, Zielonka S, Oechsner H, Lemmer A. Is the continuous two-stage anaerobic digestion process well suited for all substrates?, Bioresource Technology. 2016; 200: 470–476.
Lukitawes, Wikandari R, Millati R, Taherzadeh J M, Niklasson C. Effect of effluent recirculation on biogas production using two-stage anaerobic digestion of citrus waste. Molecules. 2018; 23(12) : Published online 2018 Dec 19. doi:10.3390/molecules 23123380
McCarty L. P. Anaerobic Waste Treatment Fundamental. Part 1,-chemistry and microbiology. Part 2, Environmental requirement and control. Part 3, Toxic materials and their control. Public Works. 1964; 9: 107-111.
Owen F. W, Stuckey C, Healy Jr J. B, Young Y. L, McCarty L. P. Bioassay for monitoring biochemical methane potential and anaerobic toxicity. Water Resource. 1979; 13(6): 485-492.
Sinpaisansomboon N,Intanon P, Rakwichian W, Kongsricharoern N. Development of Two-Stage Anaerobic Digesters for Biogas Production from Biodegradable Waste of Phitsanulok Municipal, Thailand. International Journal of Renewable Energy. 2007; 2(2): 63-71.
Stabnikova O, Liu X, Wang J. Anaerobic digestion of food waste in a hybrid anaerobic solid–liquid system with leachate recirculation in an acidogenic reactor. Biochemical Engineering Journal. 2008; 41(2): 198-201.
Zuo Z, Wu S, Zhang W, Dong R. Effects of organic loading rate and effluent recirculation on the performance of two-stage anaerobic digestion of vegetable waste. Bioresource Technology. 2013; 146: 556-561.




How to Cite

Phothilangka, P. (2020). FOOD WASTE POTENTIAL AND FEEDING RATES ON BIOGAS PRODUCTION IN A TWO-STAGE DIGESTION WITH EFFLUENT RECIRCULATION. Life Sciences and Environment Journal, 21(1), 180–193. Retrieved from



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