Title: Vermicomposting of mixed waste of municipal solid organic waste using Eisenia foetida
Abstract: The article is to introduce our study results of treating a vermicomposting of mixed waste of municipal solid organic waste by means of Eisenia foetida.Firt of all,the wastes we sampled from Shuige organic wastes bury field of Nanjing,and then hand-sorted to remove glass,tiles,plastic,metal and other wastes of such sorts. Next,the sampled wastes were added with straw and cow dung as well as some other organic waste remnants.After pre-composting for 15 days,Eisenia foetida was inoculated in a proper density into the mixture,and then placed with optimal moisture and proper temperature in the lab conditions.Daily growth and reproduction of Eisenia foetida were monitored in the process of vermicomposting.And then 60 days of vermicomposting later,it is advisable to test the dry weight and the chemical characteristics of vermicomposts.Results of our experiments show that the Eisenia foetida grew well in the straw and cow dung treatments in the period of the 60 days of incubation.With the mineralization of the organic waste significantly accelerated and dry weight of remnant of the cow dung and Eisenia foetida reduced,the organic C content and the total N of the mixed organic waste would also significantly decreased,the reduced C/N ratio of fresh and cow dung mixed with the vermicomposts.The results of the treatments during the 60 days proved the best treatment indicate that the addition of 30 % cow dung and inoculation of earthworms are highly effective and beneficial for the urban solid organic waste reduction,and recycled use.Therefore,vermicomposting of the urban organic wastes treated by earthworms helps not only to transform the wastes into high quality organic fertilizer,but also effectively reduce the environmental pollution so as to reach the goal of eliminating soil second pollution and protecting the soil environment,as well as enhancing virtuous recycle of waste material in agricultural production.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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