MANAGEMENT OF SOLID WASTE FROM EDIBLE OIL INDUSTRY
Gayatri Jeph, Shruti Mathur, Pritesh K. Relekar, Pranav H.Nakhate, Darshan K. Parecha, Hemant K.Gautam
The current increase in oilseed production is not only due to increase in demand by the food industry but also due to the fact that oilseed crops are being widely evaluated for potential production of biodiesel to supplement fossil fuel supplies .Oil extraction from oilseeds leaves a residue rich in carbon and nitrogen , requiring considerations of soil degradation when dumped on land without any treatment .This adversely affects soil microbial ecology resulting in environmental degradation due to inhibitory effects on nonpathogenic, soil microorganisms affecting bacterial and eukaryotic community structure. Alteration of soil microbial communities may directly impact Carbon mineralization and soil quality. In the present study ,Total Kjeldahl Nitrogen (TKN) and total organic carbon in waste from mustard oil industry viz. oil seed meal was determined . They were found to be 0.58% and 9.1% , respectively. A reduction of 77% in BOD and 99.3% in COD was observed following treatment of this waste by batch fermentation using Paenibacillus dendritiformis,isolated from oil contaminated site .The waste material did not have any autochthonous bacterial microflora. The results, taken together,suggest that land application of oil seed meal as a means of disposal may not be a good strategy for waste disposal due to the high C and N load. Treatment of the waste using allochthonous microbial biomass may offer a novel and promising strategy for development of treatment methods prior to disposal of this solid waste generated in edible oil industry therebgy alleviating problems of land pollution.
Keywords: Solid waste management, ,Biochemical Oxygen demand, Chemical Oxygen Demand