Composting Characteristics of Food Waste - Poultry Manure Mixture Inoculated with Effective Microorganisms
2009
Hong, J.H., Sunchon National University, Sunchon, Republic of Korea | Park, K.J., Sunchon National University, Sunchon, Republic of Korea
This study investigated the evaluation of maturity, stability, nutrient and heavy metal from rotating drum composter of food waste amended with poultry manure composting inoculated with effective microorganisms(EM). Composting were performed for the first, drying reactor(15㎥) 3 hours and the second, composting reactor(30㎥) 24 hours, and parameters monitored this period included moisture content, NaCl, pH, electrical conductivity(EC), C/N ratio, organic matter(OM), nutrient content and heavy metal. Changes in compost temperature during composting were maintained constantly in the range of 60~80℃ using firewood boiler(450 MJ/h). We examined physicochemical parameters and heavy metals in order to assess their effectiveness as stability and maturity, nutrient and harmful indicators such as seed germination rate less than 60%, potassium greater than 1%, dm and NaCl greater than 1%, dm at the end of the final compost. The finished compost obtained after decomposition phase at the end of the 2nd composter could not be utilized for land improvement or reclamation.
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