Microbial inoculants for small scale composting of putrescible kitchen wastes |
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| Authors: | J Nair K Okamitsu |
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| Institution: | 1. Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural (IRNAD) – Universidad Nacional de Río Negro, Sede Andina, Av. Bustillo N° 1500, Bariloche (8400), Rio Negro, Argentina;2. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina;1. Centre for Environmental Science and Engineering (CESE), Indian Institute of Technology (IIT) Bombay, Powai, Mumbai 400076, India;2. National Environmental Engineering Research Institute (NEERI), Nagpur 440020, India;1. Innovation Base of Groundwater and Environmental Systems Engineering, Chinese Research Academy of Environmental Science, Beijing 100012, China;2. Lan Zhou Jiao Tong University, Lanzhou 730070, China;3. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;4. Energy Saving & Environmental Protection & Occupational Safety and Health Research, China Academy of Railway Sciences, 100081, China |
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| Abstract: | This research looked at the need for ligno-cellulolytic inoculants (EM bacteria and Trichoderma sp.) in small to medium scale composting of household wastes. A mixture of household organic waste comprised of kitchen waste, paper, grass clippings and composted material was subjected to various durations of thermo composting followed by vermicomposting with and without microbial inoculants for a total of 28 days. The results revealed that ligno-celluloytic inoculants are not essential to speed up the process of composting for onsite small scale household organic waste treatment as no significant difference was observed between the control and those inoculated with Trichoderma and EM in terms of C:N ratio of the final product. However, it was observed that EM inoculation enhanced reproductive rate of earthworms, and so probably created the best environment for vermicomposting, in all treatment groups. |
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