고형물 회수공정 결합형 신개념 음식폐기물 디스포저 시스템의 개발 및 성능 평가

다국어 초록 (Multilingual Abstract)

A food waste disposer is an electrically powered device installed under a kitchen sink. It is located between the sink’s drain and the trap which shreds food waste into tiny pieces so that they can go through plumbing. Use of this unit is convenient and hygienic for discharging food waste in kitchen. Nevertheless, this unit has been illegal until now in Korea because of both conflict with the government’s policy-resource recovery from food waste-and perceived threat to the city’s sewer system. An attempt was made recently to meet growing need to introduce this unit for advantage of using disposer and maintenance of sewer system, etc. So an attempt was made to introduce the food waste disposer system of ‘treatment type before discharging to sewer’, but it was inappropriate for conditions in Korean. In this study, we developed a suitable disposer system for Korea based on an innovative solid recovery technology. And continuous operating experiments were carried out to evaluate the performance of the system for 18 days. The amount of food waste fed into the system was equivalent to the daily amount of food waste made from 30 households living in apartment units, which was calculated to be 14.44 kg/day. After grinding, SS/TS of food waste was 60 percent and it was the maximum amount of solid that could be recovered using this system. In the system of solid collection type using screw press, more than 70 percent of suspended solids were recovered. And less than 20 percent of total soilds were discharged through wastewater and it satisfied the legal standard of Korea. This novel food waste disposer system will satisfy with both the government’s environmental policy and higher quality resource recovery from food waste in the facilities.

참고문헌 (Reference)

1 전용우, "폐수배출식 음식물감량기기의 처리특성 연구" 2010 : 2010

2 환경부, "폐기물관리법 시행규칙 제10조 4호"

3 환경부, "주방용오물분쇄기의 판매사용금지"

4 환경부, "주방용오물분쇄기의 판매사용금지"

5 서울특별시, "주방용 오물분쇄기 시범사업 결과보고서" 2010

6 서울특별시, "주방용 오물분쇄기 시범사업 결과보고서" 2009

7 서울특별시, "음식폐기물처리 개선방안 연구-주방용오물분쇄기 도입방안"

8 김갑수, "음식물쓰레기와 디스포저" 공문각 2010

9 환경부, "음식물류폐기물 발생현황, 발생원별 발생현황(발생량)"

10 한국산업기술시험원, "음식물류폐기물 감량기기 품질기준 가이드라인 마련 연구"

11 김용근, "디스포저오수의 스크류프레스 고액분리 특성 평가" 2010 : 2010

12 장호남, "디스포저(부엌용 오물분쇄기)-배수 전처리 방식 별 수질기준" 유기성자원학회 19 (19): 55-69, 2011

13 문세흠, "디스포저 분쇄 오수의 고액분리 특성 평가" 2011 : 2011

14 통계청, "거처의 종류 및 평균사용방수별 가구(일반가구)-시군구"

15 日本 下水道協會, "下水道のためのディスポ一ザ 排 水處理システム性能基準"

16 APHA, "Standard methods for the examination of water and wastewater" American Public Health Assoc 2005

17 Diggelman, C., "Household food waste to wastewater or to solid waste? That is the question" 21 : 2003

18 Jun, D. W, "Experimental examination on the indoor drain pipeline of apartments for disposer operation" 2008 : 2008

19 Jun, D. W, "Evaluation of draining performance of horizontal drain pipe for disposer plumbing system" 2009 (2009): 2009

20 환경부, "2011 환경통계연감"