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분뇨처리장의 공정개선에 의한 처리효율 향상에 관한 연구
이찬원,김승현,김창수,문성원,전홍표,윤종섭 한국환경과학회 2004 한국환경과학회지 Vol.13 No.6
There is a need to improve the efficiency of the existing sanitary treatment facilities, because the effluent standard becomes more stricter and septic sludge increased. Thus, operating processes of sanitary treatment system in M city changed with installation of additional facilities. Process modifications were as follows: Dilution water was added to the next process after primary aeration tank. Some secondary sedimentation sludge was recycled to primary aerator so that most of the organics were stabilized in primary aeration tank under automatic control of dissolved oxygen. The line of effluent from dewatering process flowing to the activated sludge tank was changed to the primary aerator. The primary sedimentation sludge line was linked to a thickener. Polymer was added to the activated sludge tank. The effluent of primary aerator and aerobic digester was recycled from the 5th to the 1st sector. As consequencies of above process modifications, the improvement of removal efficiency was achieved as BOD 54%, COD 42%, SS 61%, T-N 39%, and T-P 12%, respectively.
CaO/CaCO3 다공체로 이루어진 활성 굴 패각의 물성 및 인 제거 효능에 관한 연구
이찬원,전홍표,권혁보 한국세라믹학회 2010 한국세라믹학회지 Vol.47 No.6
In this study, the structure and properties of waste oyster shell and its phosphorus removal efficiency were investigated. Waste oyster shells are troublesome environmental waste in the coastal region where the oysters are produced. Waste oyster shells were pyrolyzed by bench-scale rotary kiln for its activation. It shows maximum 76% of phosphorus removal efficiency for the municipal wastewater and livestock wastewater. We found that the activated oyster shells can be used as a phosphorus removal agent with the consideration of high efficiency, easy processing, and cost effectiveness.
이찬원,양기섭,박종식,이재윤,김재철,권우현 경북대학교 센서기술연구소 1995 센서技術學術大會論文集 Vol.6 No.1
A prototype for measuring the amount of colon bacilli in water has been constructed using pressure sensor. The amount of total coliforms is determined by measuring the pressure increase rate with time. Experimental results show that the latency time for measuring the amount of coil is about 4-6 hours compared with 24-72 hours with the previous measurement methods.
이찬원,양기섭,윤재일,박영배 경남대학교 환경문제연구소 1998 환경연구 Vol.21 No.-
The zinc containing wastewater from the metal finishing industry was treated by electro-coagulation system. The zine was effectively removed with removal efficiency ranging from 95 to 99%. The operation of the system was conducted to find out the optimum conditions to reduce bleaching out effect from plate, changing important parameters such as reactor plate select, flow rate, pass, amperage and settling time, along with a consideration of O&M costs for the electro-coagulation system. The most effective and economical conditions was concluded to be a combination of Fe plate 1.0 L/min of flow rate, 5 pass, 15 amperage and 30 min settling. The copper plating wastewater was also effectively treated with 94% removal effectively under this optimum condition.