Wenling Chen, Jing Wang, Wengui Liu
Fujian Provincial Key Laboratory of Environmental Engineering, Fujian Provincial Academy of Environmental Science, Fuzhou, Fujian, 350013, China
Anaerobic digestion is an efficient technology widely used in biodegradable waste treatment, in which both pollution control and energy recovery could be achieved. Sewage sludge generated by waste water treatment plants is an ideal candidate for anaerobic digestion, for the total amount of sludge could be considerably reduced during the digestion process with a large sum of biogas produced as energy resource for heating, electricity or vehicle power. Although complex microbial community structures and interrelationships in anaerobic digestion process lead to the difficult of managing and maintaining the system, there has been various advanced methods developed to optimize the anaerobic digestion technology. Co-digestion of feedstocks from different sources and pre-treatments with chemical agents, physical methods or biological organics are all proved to be effective methods for enhancement of anaerobic digestion technology in the aspects of pathogen destruction and biogas production.
anaerobic digestion, sewage sludge, co-digestion, pre-treatment
Wenling Chen, Jing Wang, Wengui Liu. A View of Anaerobic Digestion: Microbiology, Advantages and Optimization. Academic Journal of Environment & Earth Science (2023) Vol. 5 Issue 1: 1-8. https://doi.org/10.25236/AJEE.2023.050101.
 Kelleher, B.P., Leahy, J.J., Henihan, A.M., O’Dwyer, T.F., Sutton, D., Leahy, M.J., 2000. Advances in poultry litter disposal technology-a review. Bioresour. Technol. 83, 27-36.
 Ghosh, S., Pohland, F.G., 1974. Kinetics of substrate assimilation and product formation in anaerobic digestion. J. Water Pollut. Control Fed. 46, 748-759.
 Alastair J.W., Phil J. H., Peter J. H., David L. J., 2008. Optimisation of the anaerobic digestion of agricultural resources. Bioresour. Technol. 99, 7928–7940.
 Li, X. Microbial pretreatment on dewatered sludge and optimization of anaerobic digestion process performance. Master degree thesis, China Agricultural University, China. 2015.
 Zhu, Y. N. Anaerobic co-digestion of municipal solid waste and anaerobic waste sludge. Master degree thesis, Xinan Jiaotong University, China. 2005.
 Guo, X. H. Food waste anaerobic digestion process performance and the microbial mechanisms. Doctor degree thesis, Zhenjiang University, China. 2014.
 Lise A., Jan B., Jan D., Raf D., 2008. Principles and potential of the anaerobic digestion of waste-activated sludge. Progress in Energy and Combustion Science. 34, 755-781.
 He, X.D., Tang, X., Cao, D.Q., 2016. Situation and prospects of co-digestion of excess sludge in research and application. Chinese J. of Environ. Engineering. 12, 6809-6818.
 Ye, C., Jay, J.C., Kurt, S.C., 2008. Inhibition of anaerobic digestion process: A review. Bioresour. Technol. 99, 4044–4064.
 Saev, M., Kou, M.B., Simeonoy, I., 2009. Anaerobic co-digestion of waste vegetables and activated sludge. Biotech. & Biotech. Equipment. 23, 832-835.
 Liu, C.Q., Zhao, Y.C., Zhang, C.S., 2008. Acid pretreatment in sludge anaerobic digestion for hydrogen production. Chinese J. Environ. 28, 2006-2011.
 Clarkson, W.W., Xiao, W., 2000. Bench-scale anaerobic bioconversion of newsprint and office paper. Water Sci. and Technol. 41, 93-100.
 Motte, J.C., Escudie, R., Hamelin, J., Steyer, J.P., Bernet, N., Delgenes, J.P., Dumas, C., 2015. Substrate milling pretreatment as a key parameter for solid-state anaerobic digestion optimization. Bioresour. Technol. 173, 185-192.
 Noutsopoulos, C. Mamais, D. Antoniou, K., 2013. Anaerobic co-digestion of grease sludge and sewage sludge: the effect of organic loading and grease sludge content. Bioresour. Technol. 131, 452-459.
 Wang, M., Sahu, A.K., Rusten, B., 2013. Anaerobic co-digestion of microalgae Chlorella sp. and waste activated sludge. Bioresour. Technol. 142, 585-590.
 Salsail, L., 2003. A view of survival of pathogenic bacteria in organic waste used in biogas plants. Bioresour. Technol. 87, 161-166.