유기성자원의 퇴비원료로 활용 가능성 평가방법 개발
Development of Method for Possibility Assessment on Organic Resources for Using Raw Material of Compost
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Abstract
This study was conducted to find a system for screening organic resources with 16 species, 62 samples which were selected to randomizing points from city, province and industrial areas in the whole country. Contents of organic matters were 65.3%～98.0% in all samples so that they were largely over than 60%, raw material regulation of compost. Concentrations of total nitrogen and total phosphorus were 0.7～4.8% and 0.8～5.0, they could look for effect of the nitrogen and phosphorus supply as a raw material of compost. In case of 8 elements concentrations of heavy metal, they were too high to use as raw materials of compost which were over to regulation limits in Cu, Cr, Ni, and As from fiber industry, Ni from food company and leather industry, and the others are adapt to limit levels. HEM contents were the highest to 113 mg kg-1 from fiber industry and PAHs contents were the highest to 3,462 ug kg-1 from paper-mill manufacture. Distribution of PAHs concentrations were naphthalene>phenanthrene>pyrene>fluoroanthene> acenaphthene. Microtox EC50 values for bioassay were pharmaceutical company>paper-mill manufacture> industrial area sewage sludge>fiber industry>urban sewage sludge>metropolitan sewage sludge. HEM between Zn, Cu, and Ni was significant at the 99% and between Cd was significant at the 95%, Microtox between Hg and HEM significant at the 95%.
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