음식물류폐기물처리시설의 악취관리대책에 관한 연구

Odor control of Foodwaste Treatment Facilities

본 연구에서는 음식물류폐기물처리시설의 시설운영에 대한 전반적인 문제점 분석을 통해 음식물류폐기물처리시설의 효율적인 운영관리방안을 제시하고자 음식물류폐기물 관련 연구보고서와 자료를 수집 분석하였다. 음식물류폐기물처리시설에서 발생하는 악취의 특성을 알아보기 위하여 퇴비화시설과 사료화시설의 악취시료를 채취하여 분석하였다. 퇴비화 및 사료화시설의 주요 악취발생인이 큰 투입공정, 파쇄공정, 발효공정에 대하여 악취를 측정 분석한 결과 파쇄공정이 악취농도가 가장 높았다. 퇴비화시설의 주요 악취성분은 황화수소, 메틸머캅탄, 다이메틸설파이드, 암모니아였으며, 사료화시설의 주요 악취성분은 메틸머캅탄, 트라이메틸아민, 아세트알데하이드이었다.

This study was carried out to assess and analyze the overall problems of the facilities in recycling and treating of foodwaste on the basis of the unit operation facilities. It proposes effective alternatives for the high profitable management that can meet the regulation of the facilities. The study is composed of several parts including a collection of academic reports, field studies regarding the facilities operated by local government and the private sector, the analysis on odor samples from compost facilities and processing facilities for animal feed from foodwaste. Twenty facilities were surveyed on the field to find out the existing problems and to compare between facilities. Several facilities didn't meet the governmental regulation on some processes, especially the stages of input, storage, odor control and the qualities of final products under the unit equipment operation. The analysis on the odors from the phases of input, shredding and fermentation of a compost facility and processing facilities for feed, the odors from shredding equipments were higher in concentration than the others. The Major odors from the composting facility contained hydrogen sulfide ($H_2S$), methyl mercaptan ($CH_3{SH}$), Dimethyl sulfide ($(CH_3)_2S$) and Ammonia ($NH_3$) and the major odors from the animal feed facility contained methyl mercaptan ($CH_3{SH}$), Trimethylamine ($(CH_3)_3N$) and Acetaldehyde ($CH_3CHO$).