alexa Vermicomposting of solid waste generated from leather industries using epigeic earthworm Eisenia foetida.
Environmental Sciences

Environmental Sciences

Journal of Petroleum & Environmental Biotechnology

Author(s): Ravindran B, Dinesh SL, Kennedy LJ, Sekaran G

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Abstract Animal fleshing (ANFL) generated as solid waste from tannery industries was vermicomposted using the epigeic earthworm Eisenia foetida. The mixing ratio of ANFL with cow dung and agricultural residues as feed mixtures was maintained to be 3:1:1 respectively during the vermicomposting experiments for 50 days. Vermicomposting resulted in the reduction of pH 6.74 and C:N ratio 15.5 compared to the control sample. A notable increase in earthworm biomass was also observed in the vermin bioreactor. The germination index of 84\% for tomato seedlings (Lycopersicon esculentum cv. PKM1) was observed for the vermicomposted soil. Scanning electron microscope and Fourier transform infrared spectroscopy were recorded to identify the changes in surface morphology and functional groups in the control and vermicomposted samples. The results obtained from the present study indicated that the earthworm E. foetida was able to convert ANFL into nutrient-enriched products. This article was published in Appl Biochem Biotechnol and referenced in Journal of Petroleum & Environmental Biotechnology

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