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양기섭,이찬원,권영택,김영진 경남대학교 환경문제연구소 1998 환경연구 Vol.21 No.-
This paper presents the optimal treatment procedure and rational of combined wastewater with municipal, night soil, and animal waste, considering influent organic concentration of combined wastewater, sewer line system, and operating efficiency. Results indicate that aerobic digestion of night soil is recommended before combining with wastewater rather than pretreatment of night soil, even though the oxidation ditch operates in an extended aeration mode with long detention and solids retention times. Much attentions should be paid to the corrosive effects of contaminants from animal waste and night soil on the following treatment facilities. It is also expected that discharge standards of nitrogen and phosphorus will be strictly enforced in near future.
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.
이재훈,양기섭,윤재일,이찬원 경남대학교 환경문제연구소 1999 환경연구 Vol.22 No.-
Contamination of both surface and ground waters, and water shortages have forced us to search for innovative sources of water supply. The use of dual water system is expected to increase and to become of even greater importance in the future. In this study, electrocoagulation process was applied in treating municipal wastewater for nonpotable reuse. It is clear that the once-used water collected from communities and municipalities must be viewed not as a waste to be disposed of but as a resource. The parameters tested operating both batch and continuous electrocoagulation were electrolytic plate, plate distance, voltage and current density with removal efficiencies of BOD, COD, SS, T-N, T-P, turbidity and color. Good water quality of treated effluent was obtained as BOD〈10.0mg/L, COD〈20.0mg/L, SS〈20.0mg/L and P〈5mg/l, with both A1 and SUS plate. Corrosive reaction was found in electrocoagulation reactor with plate. Only 15 - 35% of nitrogen in rawmunicipal wastewater was removal by both A1 and SUS plate. The optimum condition of electrocoagulation treatment for nonpotable reuse was found to be 10mm of plate distance, 10 V, and 1.10 A/dm² of current density with SUS plate.
김재철,이찬원,박종식,김승호,이재윤,양기섭,권우혁 한국센서학회 1996 센서학회지 Vol.5 No.3
We propose a new method for measuring coliform group in water. In this method we measure the pressure increase rate with time due to the generation of CO₂ gas formed during the fermentation of coli. Experimental results by constructed instrument using pressure and temperature sensors show that we can determine the amounts of coli in 4∼6 hours, which usually takes 24∼72 hours conventional methods.