Reduce of Fermentation Time in Composting Process by Using a Special Microbial Consortium

Authors: S.H. Mirdamadian, S.M. Khayam-Nekoui, H. Ghanavati

Abstract:

Composting is the process in which municipal solid waste (MSW) and other organic waste materials such as biosolids and manures are decomposed through the action of bacteria and other microorganisms into a stable granular material which, applied to land, as soil conditioner. Microorganisms, especially those that are able to degrade polymeric organic material have a key role in speed up this process. The aim of this study has been established to isolation of microorganisms with high ability to production extracellular enzymes for degradation of natural polymers that are exists in MSW for decreasing time of degradation phase. Our experimental study for isolation designed in two phases: in first phase we isolated degrading microorganism with selected media that consist a special natural polymer such as cellulose, starch, lipids and etc as sole source of carbon. In second phase we selected microorganism that had high degrading enzyme production with enzymatic assay for seed production. However, our findings in pilot scale have indicated that usage of this microbial consortium had high efficiency for decreasing degradation phase.

Keywords: Biodegradation, Compost, Municipal Solid Waste, Waste Management.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1055078

References:

[1] L. Yanjun, W. Xingwu, G. Jifeng, "Characteristics of municipal solid waste and sewage sludge co-composting," Waste Managment. vol. 29, Sep 2009, pp. 1152-1157.
[2] M. Vargas-Garcia, F. Francisca, M. Lopez, J. Moreno, "Influence of microbial inoculation and co-composting material on the evolution of humic-like substances during composting of horticultural wastes," Process Biochemistry. vol. 41, 2006, pp. 1438-1443.
[3] C. Chroni, A. Kyriacou, I. Georgaki, T. Manios, M. Kotsou, K. Lasaridi, "Microbial characterization during composting of biowaste," Waste Management. vol. 29, 2009, pp. 1520-1525.
[4] P. Pramanik, G.K. Ghosh, P. Banik, "Effect of microbial inoculation during vermicomposting of different organic substrates on microbial status and quantification and documentation of acid phosphatase", Waste Management, vol. 29, 2009, pp. 574-578.
[5] Z. Wei, B. Xi, Y. Zhao, S. Wang, H. Liu, Y. Jiang, "Effect of inoculating microbes in municipal solid waste composting on characteristics of humic acid", Chemosphere, vol. 68, 2007, pp. 368- 374.
[6] B. Xi, G. Zhang, H. Li, "Process kinetics of inoculation composting of municipal solid waste", Journal of Hazardous Materials, vol.124, 2005, pp.165-172.
[7] F. Lei, J.S. VanderGheynst, "The effect of microbial inoculation and pH on microbial community structure changes during composting", Process Biochemistry, vol. 35, 2000, pp. 923-929.
[8] Y. Lu, X. Wu, J. Guo, "Characteristics of municipal solid waste and sewage sludge co-composting", Waste Management, vol. 29, 2009, pp. 1152-1157.
[9] M. Taccari, M. Stringini, F. Comitini, M. Ciani, "Effect of Phanerochaete chrysosporium inoculation during maturation of cocomposted agricultural wastes mixed with olive mill wastewater," Waste Management, vol. 29, 2009, pp.1615-1621.
[10] D. Zhang, P. He, L. Yu, L. Shao, "Effect of inoculation time on the biodrying performance of combined hydrolytic-aerobic process, Bioresource Technology, vol.100, 2009, pp.1087-1093.
[11] C.G. Golueke, B.J. Card, P.H. MaGauhey, "A critical evaluation of inoculums in composting," Applied Microbiology, vol. 2, 1954, pp. 45- 53.
[12] M.S. Finstein, M.L. Morris, "Microbiology of municipal solid waste composting. Advances in Applied Microbiology, vol. 19, 1975, pp.113- 151.
[13] F.Lei, J.S. VanderGheynst,. "The effect of microbial inoculation and pH on microbial community structure changes during composting," Process Biochemistry 35, 2000, 923-929.
[14] S.P. Wani, P.A. Shinde, "Studies on biological decomposition of wheat.straw: II-Screeening of wheat-straw decomposing microorganisms under field conditions, " Mysore Journal of Agriculture Science, vol. 12, 1978, pp.388-391.
[15] N. Requena, R. Azcon, M.T. Baca, "Chemical changes in humic substances from compost due to incubation with ligno-cellulolytic microorganisms and effects on lettuce growth, " Applied Microbiology and Biotechnology, vol. 45, 1996, pp.857-863.