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플라워 부티크를 주제로 한 공간 콜라보레이션 상업시설 분석
강철희(Kang, Chul-Hee),차화정(Cha, Hwa-Jung) 한국실내디자인학회 2014 한국실내디자인학회 학술대회논문집 Vol.2014 No.11
Increase of people’s incomes and improvement of life quality, their interests about cultural investment is getting higher. This effect leads demands of leisure activities, and they expand to floricultural fields that recently come into the spotlight. Sale of flower products is rising though, these goods are usually treated as consumables. Depending on these prejudices, It still get lower economical results in spite of social preference. In contrast, suppliers show signs of overheating. Manufacturers intensely compete for consumers, typical buyers’ market is formed these days. Overcoming this economical status, shops are started to developing their managements. Not a simple shape of selling, ‘Collaboration’ is used as a new strategy of flower fields, and It earns massive profits. This marketing tactic intends ‘Working together’. Supporting each other’s strength, satisfying customer’s desire for the third space of brand-new together, and all performance connect as new quality of life style. This research shows possibility of floricultural industry’s development, going over relationship about flower boutique and space collaboration, and its circumstance and limitation.
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김성준 ( Sung-joon Kim ),전용태 ( Yong-tae Jeon ),지석인 ( Seok-in Jee ),차화정 ( Hwa-jung Cha ),송영석 ( Young-seok Song ),원찬희 ( Chan-hee Won ),김명희 ( Ming-ji Jin ) 한국환경기술학회 2015 한국환경기술학회지 Vol.16 No.2
본 연구는 유기막의 배출수와 K정수장의 상수 원수를 블렌딩하여 처리하는 무기막의 실 플랜트 운전을 통해 현장에 맞는 운전조건을 도출 하였다. 플럭스 2 ㎥/㎡·day, 응집제 20 ppm의 조건에서 모든 블렌딩비에서 차압은 정상적이었으며, 처리수 기준으로는 블렌딩 6.0:1에서 높은 처리율을 보여 주었다. 고탁도 블렌딩비 3.7:1에서 2 ㎥/㎡·day, 3 ㎥/㎡·day, 4 ㎥/㎡·day의 플럭스로 운전한 결과 2 ㎥/㎡·day로 6개월 이상 약품세정(CIP) 없이 운전이 가능하였다. 응집제 주입량은 10 ppm과 20 ppm을 비교한 결과 두 응집제 주입농도에서 모두 좋은 처리 수질을 보였으나, 10 ppm일 경우 차압의 상승이 급격히 이루어져 고탁도시에는 20 ppm이 적정 차압을 유지시키는데 적합하다고 판단하였다. This study deduced an operating condition suitable for the site through the actual plant operation of ceramic membrane blending and treating effluent from organic membrane and raw water at K filtration plant. Differential pressure was normal at all blending ratios in the condition where flux was 2 ㎥/㎡·day and the dose of coagulant was 20ppm. And it was shown that treatment rate was high at 6.0:1 blending ratio on the basis of treated water. In the results of operation at a flux of 2 ㎥/㎡·day, 3 ㎥/㎡·day, and 4 ㎥/㎡·day at a 3.7:1 high-turbidity blending ratio, it was possible to be operated without cleaning in place for 6 months or over. With regard to the dose of coagulant, in the results of comparing 10ppm with 20ppm, good treated water quality was shown in both dosing concentration of coagulant. However, in case of 10 ppm, differential pressure sharply increased. Accordingly, it was thought that 20 ppm was suitable for maintaining proper differential pressure at high turbidity.
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전용태 ( Yong-tae Jeon ),원찬희 ( Chan-hee Won ),지석인 ( Seok-in Jee ),차화정 ( Hwa-jung Cha ),송영석 ( Young-seok Song ),김성준 ( Sung-joon Kim ) 한국환경기술학회 2015 한국환경기술학회지 Vol.16 No.2
폐석고를 사용하여 인산염과 침전반응특성에 대하여 실험을 실시하였다. 폐석고의 주요 구성은 CaO와 SO<sub>3</sub>, SiO<sub>2</sub>로 구성되어 있는 것으로 검토되었다. 인산염은 pH10 조건에서 칼슘 이온과 반응하며 폐수의 pH를 조정하여 유도되는 반응조건에 따라 제거되었다. 침전제별 처리효율을 살펴본 결과 혼합침전제의 인산염 제거효율이 폐석고에 비하여 약 15%의 높은 제거효율을 보였으며 생석회에 비하여 높은 제거효율을 보였다. XRD 분석을 통해 침전물의 결정 구조가 부분적으로 Ca<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>(OH)을 위주로의 CaF<sub>2</sub>임을 보여 주었다. 폐석고의 적용 가능성을 검토한 결과 석회와 비교하여 90%이상의 제거효율을 보였으며 운영비용면에서도 70%이상의 절감효과를 얻을 수 있었다. The features of precipitating reaction of phosphate have been examined by employing waste gypsum as a precipitant. The major component of waste gypsum was examined to be CaO with minor components of SO<sub>3</sub>, SiO<sub>2</sub>. Phosphate is reacted with calcium ions under the conditions of pH 10 and could be removed by the reaction conditions induced by adjusting the pH of the waste water. The different performance precipitant, phosphate removal efficiency of mixing the precipitating agent showed high removal efficiency compared to lime showed approximately 15% higher removal efficiency than Waste Gypsum. XRD analysis showed that the crystalline structure of precipitate was mainly CaF<sub>2</sub> with partly Ca<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>(OH). Result of examining the applicability of Waste Gypsum. compared with lime show the removal efficiency of 90%, it is possible to obtain more than 70% reduction in terms of operational cost.
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정팔진,차화정,곽동희 全北大學校 附設 都市및環境硏究所 1995 都市 및 環境硏究 Vol.10 No.1
This study was performed to present the removal method and occurrence cause of scum in water treatment plant of Chonju city. Because e scum generally involves foam and bubble, occurred scum in especially Jigok water treatment plant among the water treatment plants of Chonju city makes not only much difficulty for treatment, but also the problem of an aesthetic In the result, the cause of scum occurrence was happened by ABS components and occurred bubble. ABS results from the input of domestic and industrial waste water. It forms bubble on the water surface in the process of fall and coagulation, and forms scum on the water surface in the condition of capture and rise of coagulated floc. Daesung water treatment plant appeared ABS concentration of 0.25∼0.32ppm, where that of Jigok water treatment was 0.37∼0.42ppm. As the DO saturation rate to intake station and gauging well was investigated, and the retention time of water channel was considered, the air bubble was occurred by the separation of supersaturation DO because of the intake air. Therefore, the cause of scum generation was found to the air bubble mentioned above. So, it was required to minimize the air intaking at pump and pipe line.
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