Entrapped Mixed Microbial Cell (EMMC) 공정을 이용한 수산물 가공 폐수처리에서 유기물 및 질소 동시제거 = Simultaneous Removal of Organic and Nitrogen in the Treatment of Fish Processing Wastewater using Entrapped Mixed Microbial Cell (EMMC) Process

다국어 초록 (Multilingual Abstract)

Feasibility of simultaneous removal of organic materials and nitrogen in the wastewater from fisheries processing plant was evaluated using entrapped mixed microbial cell (EMMC) process. The experiment was performed using activated sludge from municipal sewage treatment plant which was immobilized with gel matrix by cellulose triacetate. It was found the stable operation at the treatment system which is composed of anoxic and oxic tank, was possible when the organic and nitrogen loading rates were increased stepwise. The organic and nitrogen loading rates were conducted from 0.65 to 1.72 ㎏COD/m3/d and from 0.119 to 0.317 ㎏ T-N/m3/d with four steps, respectively. The maximum nitrogen loading rate which could satisfy the regulated effluent standard of nitrogen concentration, was 0.3 ㎏ T-N/m3/d. The removal efficiency of total nitrogen was decreased apparently as increasing nitrogen loading rates, whereas the removal efficiency of ammonium nitrogen was effective at the all tested nitrogen loading rates. Therefore, it was concluded that nitrification was efficient at the system. Nitrate was removed efficiently at the anoxic tank. whereas the nitrification efficiency at the oxic tank ranged 94.0% to 96.9% at the tested loading rates. The removal efficiencies of chemical oxygen demand (COD) and those of total nitrogen at the entire system ranged from 94.2% to 96.6% and 73.4% to 83.4%, respectively.

참고문헌 (Reference)

1 "제올라이트를 첨가한 간헐폭기 활성슬러지 시스템을 이용한 수산물 가공폐수 처리" 12 (12): 410-414, 2001

2 "연속회분식 반응기를 이용한 수산물 가공폐수 처리" 1 : 18-26, 1994

3 "수질오염공정시험법" 환경부 2004

4 "수산물 가공폐수의 생물학적 처리" 7 (7): 59-66, 1985

5 "Standard Methods for the Examination of Water and Wastewater, 20th Ed." 1998

6 "Simultaneous Removal of Carbon and Nitrogen Using an Entrapped Mixed Microbial Cell Process" 31 : 2617-2625, 1997

7 "SBR공정에서 염분함유폐수의 유기물 및 질소처리 연구" 343-347, 2005

8 "Pollution Control Through Water Conservation and Wastewater reuse in the Fish processing Plant" 22 : 113-121, 1990

9 "Pilot Scale Experiments on Anaerobic Treatment of Wastewater from a Fish Processing Industry" 22 : 463-474, 1990

10 "Packed Entrapped Mixed Microbial Cell Process for Removal of Phenol and its Compounds" a26 : 1491-1521, 1991

11 "Nitrogen and Carbon Removals from Food Processing Wastewater by an Anoxic/Aerobic Membrane Bioreactor" 40 : 1733-1739, 2005

12 "Immobilized Mixed Microbial Cells for Wastewater Treatment" 23 : 295-312, 1988

13 "Immobilization of Nitrifying Bacteria by Polyethylene Glycol Prepolymer" 73 (73): 37-42, 1992

14 "Immobilization of Activated Sludge by PVA-Boric Acid Method" 15 : 52-59, 1987

15 "Design Manual : Nitrogen Control" 1993