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J Korean Soc Environ Eng > Volume 38(9); 2016 > Article
J Korean Soc Environ Eng 2016;38(9): 469-475. doi: https://doi.org/10.4491/KSEE.2016.38.9.469
iMBR 공정을 이용한 수산물가공폐수 처리에 관한 실증적 고찰
박성균, 이동준
현대엔지니어링 인프라환경사업부
The Practical Study for the Treatment of Fish Processing Saline Wastewater Using Immersed MBR
Seung Kyun Park, Dong Jun Lee
Division of Infrastructure Environmental, Hyundai Engineering Co., Ltd.
Corresponding author  Dong Jun Lee ,Tel: 02-2134-7128, Fax: 02-2038-6438, Email: jun20lee@hec.co.kr
Received: June 14, 2016;  Revised: August 2, 2016;  Accepted: August 12, 2016.  Published online: September 30, 2016.
The study is the result of an practical operation analysis for the full scale fishery product wastewater treatment plant with immersed MBR (iMBR) process. Since fishery product industries show a wide range of wastewater generation by the season, design and operation of the equalization basin are very important factor. The aeration system for the equalization basin mixing can save the chemical consumption for followed system through the restriction of acid fermentation. The concentrations of wastewater primary DAF process treated were BOD 2,291 mg/L, CODMn 530 mg/L, SS 256.8 mg/L, T-N 38 mg/L, T-P 13.5 mg/L respectively. It was considered that iMBR is the most efficient biological process for high salinity content wastewater since It is irrelevant to the capability of the sludge precipitation. SADp and SADm were 0.31, 26.5 m3/hr・m3 respectively. In iMBR process, the critical F/M ratio was derived at 0.08~0.10 gBOD/gMLSS by analysing the correlations between MLSS, normalized TMP and temperature. The effluent concentrations were BOD 1.8 mg/L, CODMn 12.4 mg/L, SS 1.0 mg/L, T-N 7.85 mg/L, T-P 0.1 mg/L and removal efficiencies were 99.9%, 97.6%, 96.3%, 95.7%, 97.8% respectively.
Key Words: Saline Wastewater, iMBR, SADm, Normalized TMP, Permeability
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