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강용태,유동선,Gang, Yong-Tae,Yu, Dong-Seon 한국상하수도협회 1984 水道 Vol.30 No.-
본 연구는 급속여과지에 있어서 현탁물 부착모델에 관한 연구이다. 금회의 연구를 통하여 수정타원형 부착모델을 제안하여 실측치와 잘 일치하는 여과 저항식을 유도했다. 유도된 이 여과저항식은 금후 급속여과지 설계에 있어서 최적 높이 결정에 기여함으로써 경제적인 급속여과지를 설계하는데 중점을 두고 본 연구를 시행하였다. This paper is a study on the adhesion model of the deposit in rapid filter. In this paper, ellipse adhesion model modified was proposed. With that head-loss equation during filtration that is very consistent with the experimental value was derived. In the design of the rapid filter, after this head-loss equation during filtration derived may contribute to the decision of optimum filter height.
강용태,원태준,현길수 대한토목학회 2012 KSCE Journal of Civil Engineering Vol.16 No.3
This study was conducted to evaluate the performance of High-Rate Filter (HRF) as an alternative process to Conventional Primary Sedimentation (CPS) processes and the performance of different configurations of activated sludge and biofilter systems with anaerobic/aerobic zones for efficient textile wastewater treatment. The performance efficiency of the HRF with much shorter hydraulic retention time (HRT: 0.3 h) was very similar to that of the CPS process with a longer HRT of 3.0 h. The highest efficiencies of the systems were achieved by configuring anoxic:anaerobic:oxic:oxic zones for an activated sludge system and anaerobic:oxic:anoxic zones for a biofilter system, respectively. In particular, under the most efficient configurations of the systems, the performance of the biofilter system achieved a higher efficiency than that of the activated sludge system. Compared with the existing physicochemical-sequencing batch reactor system, the most efficient configurations of the HRF/activated sludge system and the HRF/biofilter system with a shorter HRT achieved both higher pollutant removal efficiency and lower sludge production.