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김호열 ( Ho-youl Kim ),허순철 ( Soon-cheol Heo ),송호면 ( Ho-myeon Song ) 한국환경기술학회 2005 한국환경기술학회지 Vol.6 No.1
인간은 자연·인공호수로부터 음용수 및 농·공업용수를 이용하고, 친수공간을 제공받는다. 도시공원내 호수는 친수공간으로의 역할이 중요하다. 덕진공원내 호수는 정체수역으로 보트장과 연꽃자생지로 나뉘는데, 각 특성을 살려 별도관리를 실시하고자 한다. 덕진공원내 호수의 오염원분석결과, 대기로부터 오염, 퇴적토 회귀용출로 각각 1.69, 22.48 g/d 씩의 T-P 농도로 호수에 기여하는 것으로 나타났다. 보트장의 수위 유지를 위해서는 110 ㎥/일 이상의 유입이 필요하였고, 유지용수원으로는 주변 지하수가 선정되었다. 보트장은 퇴적토의 불활성화 및 호소수 순환, T-P 0.01 mg/L의 지하수 1,000 ㎥/일이 유입될 경우 0.08 mg/L로 Ⅲ∼Ⅳ 급수의 수질 유지가 가능한 것으로 나타났다. 연꽃자생지는 적정개체수 도출을 위한 실험을 지속적으로 수행하여야 한다. Our lives depend on both natural and artificial lakes because they provide drinking water for millions, water for agricultural and industrial development and they provide unique recreational opportunities. This study was performed to investigate the efficiency of water quality remediation by circulation and influent subsurface water. The delivery loading amount of Deokjin lake was about 24 g/d for total phosphorus when applied the Jan. and Feb. 2005 without the influent water. Water quality of Deokjin lake depend upon the water quantity of inflow from the ground water subsurface water as well as the water quality of the inflow into the reservoir. Phosphorus removal efficiency using circulation and inflow water was observed. The total phosphorus concentration using circulation and inflow water was about 0.08 mg/L in summer, when inflow quantity was 1,000 ㎥/d, quality was 0.01 mg/L.
제강전로슬래그를 이용한 고화처리 하수슬러지의 중금속 용출 특성
김응호(Eoung Ho Kim),조진규(Jin Kyu Cho),허순철(Soon Cheol Heo) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.3
The hazard of heavy metals leached from the solidified sewage sludge by converter slag were estimated. Various curing methods and curing times were investigated. The Korean standard leaching method and Toxicity Characteristics Leaching Procedure(TCLP) were compared. The sequential extraction leaching test for solidified sewage sludge by converter slag were also studied. The results show that the leaching of the metals was relatively independent of the curing method and the curing time for solidified sludge. The leachate Cd, Cr^(6+) and Pb concentrations were higher in TCLP than those in the Korean standard leaching method. The leachate Cu concentration, however, was higher in the Korean method than that in TCLP. In the sequential extraction leaching test, leachate Cd and Pb concentrations were low in high pH and alkalinity during initial extraction, but leachate concentrations increased gradually as the extraction steps increased. The tendency of leachate Cr^(6+) and Cu concentrations showed contrary to Cd and Pb concentrations. The leachate Cu concentrations were high in the case where quicklime was added. The results of all the leaching tests showed that the concentrations of leachate heavy metals were much lower than that in the Korea toxic waste criteria. Thus the hazard of the leaching of heavy metals caused by landfill of solidified sewage sludge by converter slag may be considered to be quite low.
신도시 중산층 아파트 지역에서의 하수발생량 및 절수 홍보 효과
金應鎬,許順哲,趙珍奎,黃煥國 弘益大學校 科學技術硏究所 1996 科學技術硏究論文集 Vol.7 No.1
Both pattern of water use and pollutant load were investigated in the apartment area for the middle class of a new town. Especially the analysis of the effect of saving water under public information of saving water was used to search possible quantities of saving water. The results of this survey showed that each household had 3.84 persons with water use rate of 262 L/capitaㆍd on an average. The average domestic loading for COD, BOD, SS, T-N and T-P were 107.5, 49.5, 50.1, 7.7 and 1.6 g/capitaㆍd, respectively. Water used by residential households consists of water for washing clothes, toilets, bath, showers, kitchen, washing up and sweeping. Among above sources toilet water (26%) occupied the largest component of residential water use. Also the reduction of total water use was 12.3% by public information of saving water.