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생물막여과법을 이용한 낙동강 원수전처리 및 고도정수처리시스템에 관한 연구
강용태(Yong Tae Kang),송근관(Kune Kwan Song),김덕진(Duk Jin Kim) 한국수처리학회 1999 한국수처리학회지 Vol.7 No.3
This study is to evaluate the characteristics of submerged biofilter process as pretreatment of raw water and alternative advanced water treatment system(AAWTS) composed with bioflitration, post-ozonation and GAC for Nakdong River by comparison of existing advanced water treatment system(EAWTS), composed with pre-ozonation, flocculation, sedimentation, sand filtration, post-ozonation and GAC. In the bioflitration process, the removal of turbidity, color, KMnO₄ consumption, NH₃-N and UV254 reached 98%, 95%, 70%, 72%, 79% respectively. The stable removal efficiency was obtained by the direct bioflitration after coagulant injection thought the influent was a muddy and highly polluted. The removal efficiency of the alternative advanced water treatment(AAWTS) using bioflitration process for turbidity, color, KMnO₄ consumption, NH₃-N and UV254 was reached 98.5%, 98%, 82%, 90%, 92% respectively. It is equivalent to the removal efficiency of existing advanced water treatment system(EAWTS) though the demanded area and coagulant of the alternative advanced water treatment system using bioflitration process was decreased about 60% and 70% respectively.
터널폐수 처리를 위한 섬유여과 공정의 응집 전처리에 따른 최적운전조건결정
강용태 ( Yong Tae Kang ),송근관 ( Kune Kwan Song ),송정호 ( Jeong Ho Sohn ),김연은 ( Yun Eun Kim ),배종환 ( Jong Hwan Bae ) 한국수처리학회 2012 한국수처리학회지 Vol.20 No.3
The purpose of this study is to investigate the optimal operating conditions of fiber filter process for effective tunnel wastewater treatment. Tunnel construction wastewater was discharged into the ocean, The sea water polluted by the tunnel wastewater, The average concentration of raw water in SS, Turbidity, COD, TN, TP, Salinity and pH were respectively 675mg/L, 747NTU, 0.76mgIL, 3.gmg/L, 0.32mg/L, 1 5o and 7.46. The sampling port of filter bed depth was 30-100cm. And Filtration velocity of fiber filter process was 100-1000m/day. Suitable pre-treatment is required because of high turbidity for Tunnel wastewater treatment. As a result, the optimal operating conditions of fiber filter process are 1 000m/day of filtration velocity, 80cm of bed depth without coagulation and 1 000m/day of filtration velocity, 30cm of bed depth with coagulation, In 400NTU, turbidity of raw water without coagulation showed 2,601, 783won, which is more cost-effective than fiber filter process with coagulation.
다량의 조류를 포함한 오탁원수에 대한 생물막여과법의 처리특성
강용태(Yong Tae Kang),송근관(Kune Kwan Song) 한국수처리학회 2001 한국수처리학회지 Vol.9 No.3
N/A The Nak-Dong river has contaminated by the inflow of inadequately treated domestic sewage and waste water. Therefore Nak-Dong river has suffered progressive eutrophication in the form of pollution caused by the growth of excessive amounts of phytoplankton. In orther to solve these problems the algae removal efficiency of Biofilter based on a fixed-biofilm reactor system for treating was investigated. In spring and winter, when water bloom occurred, the average efficiency of chlorophyll-a removal was 90% at an average influent chlorophyll-a concentration of 82㎍/L. We estimated that almost all of the algae trapped in the biofilter was degraded biologically. Furthermore, efficiency of turbidity, color, NH₄-N and DOC removal exceeded in the influent of highly polluted. In addition to coagulant dosage and sludge quantity of Advanced Water Treatment System using Biofilter was decreased about 70% and 50% respectively.
강용태(Yong Tae Kang),송근관(Kune Kwan Song) 한국수처리학회 2002 한국수처리학회지 Vol.10 No.3
N/A Drinking water sources of Busan Metropolitan City has contaminated by the inflow of inadequately treated domestic sewage and waste water from the middle and upstream of the Nakdong river. In order to solve these problems Water Treatment System by Biofiltration was configurated and found out the characteristics of the Existing Water Treatment System by Rapid Sandfiltration and the Alternative Water Treatment System by Biofiltration. The biological treatment process in the pre-treatment, biofilter using sedimentation, dual media filter and BZC is very effective in removing NH_4-N, Chl-a, KMnO_4 consumption, DOC, THMFP.
Bank Filter 투과수를 이용한 생물막여과법의 정수처리 특성
강용태 ( Kang Yong Tae ),송근관 ( Song Geun Gwan ) 한국수처리학회 2003 한국수처리학회지 Vol.11 No.3
N/A The application of the biological oxidation of organic matters, iron and manganese from contaminated the bank filtered water was examined in this paper. This method was based on the growth of certain species of indigenous bacteria, which are capable of oxidizing the soluble iron and manganese irons: the oxidized forms can be subsequently removed from the aqueous stream by over 90%. through their transformation to insoluble oxides and separation by a suitable filter medium. The biological treatment technique presents several advantages towards conventional physicochemical treatment methods, such as enhanced coagulation or direct adsorption since: (a) it does not require the addition of other chemicals for oxidizing and removing pollutants, (b) it could find application for the removal of, at least, two groundwater contaminants Fe and Mn. The removal efficiency of Biofiltration-water treatment system was 5-30% higher than that of rapid sand filtration-water treatment system.
강용태 ( Yong Tae Kang ),송근관 ( Kune Kwan Song ),손정호 ( Jeong Ho Sohn ),김연은 ( Yun Eun Kim ) 한국수처리학회 2012 한국수처리학회지 Vol.20 No.4
The purpose of this study is to investigate of sedimentation and characteristics of heavy metals removal for tunneling wastewater treatment. In the first experiment. Applied turbidity concentration was in the ranged 200~2,000NTU at bed depth of 50cm and Filtration velocity of 300m/day. In the second experiment, applied the turbidity concentration for raw water was in the ranged 1,000~6,000NTU. HRT of sedimentation was 15min 150min. The characteristics of raw ∼ water were pH 7.5, temperature 22.8 , salinity 15.2 and TDS 15.1g/L. As a result, raw water ℃ ‰ quality has a significant impact on the efficiency of the filtration. The sedimentation should be installed in pretretment process of the filtration because of high turbidity tunneling wastewater. The concentration of turbidity in the filtration influent should be pretreated with 400NTU. Therefore, the minimum HRT of grit chamber with turbidity concentration are 60,60,90 and 120min at 1,000, 2,000, 4,000 and 6,000NTU, respectively. For Al, Fe and Cd reduction, the removal efficiency were 53.0%, 70.5%, 66.8% respectively. This results show that turbidity, SS removal efficiency are similar to heavy metal removal efficiency in sedimentation.