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김재록(Jae Rok Kim),유만식(Man Sik Yoo),박기혁(Ky Hyuk Park),구연기(Yeon Gi Koo),정인철(In Chul Jeoung) 한국열환경공학회 2010 한국열환경공학회 학술대회지 Vol.2010 No.춘계
For incinerating life wastes, Goyang-City set up and operated Stoker-type incinerating treatme nt facility from 1995.12.1 to 2009.12.14, and then Goyang-city set up and operated pyrolysis/gasification․melting type incinerating treatment facility which is the only work place in the country installing and running the incinerating treatment from 2006.05.12 to 2010.04.01 So the analysis results for operation factors to life wastes by incinerating treatment method(Stoker, pyrolysis/gasification·melting) showed that the average treatment volume for life wastes was very high by 137% in a pyrolysis/gasification·melting treatment compared to Stoker type(comparison based on lower calorific value of 2,900Kcal/kg), and the generation volume of fly ash by pyrolysis/gasification․melting treatment which is 4.69% compared to incineration volume was a bit more as the generation volume of fly ash by Stoker type which is 4.0% compared to incineration volume. And, supplying in Korea District Heating Corporation were a bit high as those by Stoker type was 392Gca/day, and that by pyrolysis/gasification·melting treatment was 383Gcal /day, and the treatment efficiency of nitrogen oxide(NOx) by pyrolysis/gasification·melting treatment was 85.6%. and the treatment efficiency of nitrogen oxide(NOx) by Stoker type was 73.9%. It showed that the treatment efficiency of nitrogen oxide(NOx) by pyrolysis/gasification·melting treatment was more efficient than the treatment efficiency of nitrogen oxide(NOx) by Stoker type about 11.7%. It indicated a good treatment efficiency going beyond the theoretical treatment efficiency(70%) of Nitrogen Oxide in SNCR System as one of treatment methods for nitrogen oxide of atmospheric pollutants exhausted from incineration treatment facilities. The comparison of exhaust concentrations of hydrogen chloride(HCl) and sulfur oxide(SOx) showed that HCl concentration by pyrolysis/gasification·melting treatment emitted 1.9ppm(average) in 150tons/day × two units, and sulfur oxides (SOx) concentration by pyrolysis/gasification·melting treatment emitted 0.8ppm, and HCl concentration by Stoker type incinerating facility was 1.3ppm in 300tons/day, and sulfur oxides(SOx) concentration by Stoker type emitted 0.6ppm, which indicated that the exhaust concentration of HCl and sulfur oxides(SOx) by incineration method was not so much different.
오정우(Jung Woo Oh),송윤섭(Yoon Seob Song),강금배(Geum Bai Kang),유만식(Man Sik Yoo) 大韓環境工學會 2007 대한환경공학회지 Vol.29 No.6
본 연구에서는, 안산정수장에 구축된 수도시설 운영정보화 시스템에 의한 처리수질개선 등 정수장 효율개선효과를 평가하였다. 분석기간 동안의 안산정수장 생활용수 유입유량은 운영정보화 시스템이 구축되기 전인 2004년도보다 구축 후인 2005년도가 약 15.6% 감소한 것으로 나타났다. 원수의 평균탁도는 2005년 12.37 NTU, 2004년 12.06 NTU로 비슷한 값을 나타내었으나, 연평균 응집제의 주입농도는 2005년도가 12.06 mg/L으로 2004년(10.31 mg/L)보다 다소 높은 것으로 나타났고, 정수탁도는 약간 개선된 처리효율을 나타내었다. 원수의 CODMn 및 BOD 등의 분석결과, 2004년보다 2005년의 원수수질이 개선된 것으로 판단할 수 있었다. 정수의 KMnO₄ 소비량은 2004년(2.95 mg/L)보다 2005년은 1.25 mg/L로써 그 양이 줄어들었고, THMs의 농도도 2004년(0.038 mg/L)보다 2005년 0.025 mg/L로써 다소 개선되었다. 본 연구결과, 약품주입 등 정수장 운영은 운영 정보화 시스템의 구축에 의해 보다 최적의 상태를 도모할 수 있으며, 이에 따라 수질개선효과도 있음을 판단할 수 있었다. In this study, the improvement of the operation condition and the water quality in water treatment plant by operating information system(OIS) was evaluated for Ansan water treatment plant. The average flow rate of raw water in the year 2005(after constructing the OIS) appeared 15.6 % lower than that in the year 2004(before constructing the OIS). The mean value(12.37 NTU) of raw water turbidity in the year 2005 remained constant, or nearly so with that(12.06 NTU) in the year 2004. The average dosing rates of coagulant appeared 12.06 mg/L in the year 2005 which was higher than 10.31 mg/L in the year 2004. Furthermore, the average turbidity concentration of fresh water in the year 2005 appeared slightly better than that in the year 2004. From CODMn and BOD concentration of raw water, the water quality in the year 2005 were better than those in the year 2004. The average concentration of KMnO₄ in the year 2004 and the year 2005 was 2.95 mg/L and 1.25 mg/L, respectively, and the average concentration of THMs in the year 2004 and the year 2005 appeared 0.038 mg/L and 0.025 mg/L, respectively. Therefore, the fresh water quality in the year 2005 was better than that in the year 2004. In this study, it is considered that the operation of Ansan water treatment plant may be optimized by OIS, and thus the OIS may be very useful method to improve the water quality.