2002년 Melbourne IWA World Water Congress 참관기

대한상하수도학회 국제위원회 대한상하수도학회 2002 상하수도학회지 Vol.16 No.3

보고문 : 미국호수관리학회 및 저수지 현지 답사 출장기 - 미국호수관리학회 ( NALMS ) 임원회의 , BOD meeting , TVA ( Tennessee Valley Authority ) 방문 , LA 저수지 현지 답사기

서동일(Dong Il Seo) 대한상하수도학회 2002 상하수도학회지 Vol.16 No.5

도시 소유역 내 내수침수 위험도 평가 : 강우 시간분포 및 이중배수체계 모형을 중심으로

대한상하수도학회 대한상하수도학회 2021 상하수도학회지 Vol.35 No.6

In this study, dual drainage system based runoff model was established for W-drainage area in G-si, and considering the various rainfall characteristics determined using Huff and Mononobe methods, the degree of flooding in the target area was analyzed and the risk was compared and analyzed through the risk matrix method. As a result, the Monobe method compared to the Huff method was analyzed to be suitable analysis for flooding of recent heavy rain, and the validity of the dynamic risk assessment considering the weight of the occurrence probability as the return period was verified through the risk matrix-based analysis. However, since the definition and estimating criteria of the flood risk matrix proposed in this study are based on the return period for extreme rainfall and the depth of flooding according to the results of applying the dual drainage model, there is a limitation in that it is difficult to consider the main factors which are direct impact on inland flooding such as city maintenance and life protection functions. In the future, if various factors affecting inland flood damage are reflected in addition to the amount of flood damage, the flood risk matrix concept proposed in this study can be used as basic information for preparation and prevention of inland flooding, as well as it is judged that it can be considered as a major evaluation item in the selection of the priority management area for sewage maintenance for countermeasures against inland flooding.

회장취임인사 ( Inaugural Message ) ( 대한상하수도학회 , 상하수도학회지 , 제 15 권 4 호 , 2001 년 )

정태학(Tai Hak Chung) 대한상하수도학회 2001 상하수도학회지 Vol.15 No.4

대한상하수도학회,한국물환경학회 2005년 공동 추계학술발표회 및 포럼 & 2005 Water Korea

학회자료 대한상하수도학회 2005 상하수도학회지 Vol.19 No.5

특집 : 우리나라 도시 상하수도 시스템의 문제점 및 대책 - 낙동강 페놀오염사건을 계기로 - 1991 . 6 < 한국상하수도학회 조사위원회 >

학회자료 대한상하수도학회 1991 상하수도학회지 Vol.4 No.1

간접가온 건조방식의 건조시설을 이용한 하수슬러지 퇴비화에 관한 연구

백선재,한인섭,최익훈,강성효,홍성민 대한상하수도학회 2014 상하수도학회지 Vol.28 No.3

The need of reusing sewage sludge is highly increasing as the amount of domestic sewage sludge is growing and sewage management strategies were reinforced. Accordingly, in this research, we studied the composting possibility of sludge in sewage treatment plant J, using dryer facility with indirect system by conducting component analysis of dried sludge and experiment on cultivating crops. It was observed from the component analysis, that the dried sludge is appropriate for both decomposed manure standard of Ministry of Environment and fertilizer standard of Rural Development Administration. Besides, in the experiment on cultivating lettuce, the experimental group(soil + dried sludge) was superior to the control group(soil + bed soil) in apparent condition of leaves tensity and damage by disease and pest. In case of cultivating tomato, the experimental group showed stronger durability of fruits dangling on stems compared to the control group after 9 weeks. Consequently, the excess sludge dried by indirect heating system in the sewage treatment plant J is appropriate for the standard of both Ministry of Environment and Rural Development Administration and show good result in experiment on cultivating crops therefore it can be reused for composting.

정수장 슬러지 폭기를 통한 방류수 수질 개선

최일경,신창수,백인호,임재철,정찬우,이성진,박정욱 대한상하수도학회 2014 상하수도학회지 Vol.28 No.2

So many drinking water treatment plants are under various difficulties by new reinforced effluent standards. Since the target turbidity, much higher than annual average, for designing sludge thickener have to be set to confront high turbidity season, the sludge at thickener should be put up for a long time during usual days. So the soluble manganese and chloroform may be formed under the anaerobic environment in the sludge thickener when the sludge retention time is longer with low turbidity. This phenomenon results in difficulties to keep regulatory level of the discharged effluent. For an effort to overcome the problems, a sludge aeration was successfully implemented into the thickening process. As a result, the final effluent quality and sludge volume were much improved; 41 % of manganese, 62 % of chloroform and 35 % of sludge volume. Additionally, effluent quality was improved ; 61 % of Manganese on aeration with pH control and we could make sure of stability effluent quality despite a long sludge retention time. We recommended the standard of installation sludge aeration equipment to nationally supply water treatment plant under effluent water quality problem ; Manganese, Chloroform, etc.

상수도 미보급 지역의 지하수 수질상태 평가를 위한 배경농도 산정방법에 관한 연구

여영도,서용교,김락현,조동준,김광식,조욱상 대한상하수도학회 2014 상하수도학회지 Vol.28 No.3

For introducing the groundwater quality assessment using background concentration of groundwater, several methods had been studied to estimate the background concentration of groundwater and to suggest the background concentration of study area. Some methods such as Box whisker plot, Percentile and Cumulative probability distribution had been adopted to estimate background concentration, and it was evaluated that the Cumulative probability distribution method presents more reasonable background concentration because it can consider the data distribution. So we estimated the background concentration of study area using cumulative probability distribution method. We suggested the background concentration for each hydrogeology respectively in case hydrogeological water quality similarity is very low.

세라믹막(MF) 고도정수처리에서 NOM 제거 특성

유상준,박성한,임재림,서정민,장성호,홍성철,이병인 대한상하수도학회 2014 상하수도학회지 Vol.28 No.4

This study assessed the removal efficiency of NOM which is known as the precursors of DBPs in advanced water treatment using the ceramic membrane filtration, introduced the first in the nation at the Y water treatment plant (WTP). It is generally well-known that the removal of NOM by MF Membrane is very low in water treatment process. But, the result of investigation on removal efficiency of NOM in advanced water treatment using the ceramic membrane was different as follows. The removal rate of organic contaminant by the ceramic membrane advanced water treatment was determined to be 65.5% for the DOC, 85.8% for UV254, and 77 to 86% for DBPFP. The removal rate of pre-ozonation was found to be 6 to 15% more effective compared with the pre-chlorination. The removal rate of DOC and UV254 in biological activated carbon(BAC) process was over 50% and 75%, respectively although the rate was decreased 10 ~ 20% according to analysis items in converting from GAC to BAC.