음식물쓰레기 탈리액을 이용한 산업폐수의 생물학적 고도처리 실증실험 = Advanced Biological Treatment of Industrial Wastewater using Food Waste Leachate as an External Carbon Source: Full-Scale Experiment

다국어 초록 (Multilingual Abstract)

The feasibility of utilizing food waste leachate as an external carbon source was tested to enhance biological nutrient removal from an industrial wastewater with an average flow rate of 164,800 m3/d and a low carbon/nitrogen ratio of 2.8. A considerable improvement in the removal of nitrogen and phosphorus was observed when a certain amount of the leachate, ranging from 70 to 142 m3/d, was supplemented to the biological industrial wastewater treatment process. The addition of the leachate led to an increase in the BOD/N ratio (4.5) and the removal efficiency of nutritents from 29.7% to 71.7% for nitrogen and from 34.8% to 65.6% for phosphorus. However, an excessive dose of the leachate that significantly exceeded 120 m3/d caused serious operational problems, like oil-layer formation in the grit chamber and scum layer in the primary clarifier. Thus, an supplement of food waste leachate at a dose acceptable to an existing facilities can be a practical and effective means to enhance the nutrient removal from industrial wastewater and to dispose of the food waste leachate.

참고문헌 (Reference)

1 환경부, "환경백서" 2007

2 이병철, "음식물탈리액의 유입이 하수처리장 운전 및 처리효율에 미치는 영향" 한양대학교 2011

3 권구호, "음식물쓰레기 세정산발효액을 외부탄소원으로 주입한 SBR 공정에서 질소 및 인 제거" 한국물환경학회 22 (22): 462-467, 2006

4 안산시, "안산환경사업소 1단계 유지관리지침서" 2008

5 안산환경기술개발센터, "안산시 음식물쓰레기 배출특성 및 감량화 방안 연구" 2009

6 안산시, "안산시 연간 수탁업무처리 실적" 2008

7 안산시, "안산시 연간 수탁업무처리 실적" 2009

8 환경부, "수질오염공정시험방법" 2002

9 Metcalf, "Wastewater Engineering: Treatment and Reuse" MacGraw-Hill 2004

10 Rittmann, B. E, "Environmental Biotechnology: Principles and Applications" McGraw-Hill 2001

11 Grady, C. P. L, "Biological Wastewater Treatment" Marcel Dekker 1999

12 기상청, "2009년도 관측자료" 2009