물과 공기를 병용한 역세척 방식의 효과 및 적용성 분석 = An Analysis of Effectiveness and the Applicability for Backwashing Method of Filter Layer

다국어 초록 (Multilingual Abstract)

Determination of backwashing method is very important to be successful in rapid filtration process. In this study, an analysis of the effectiveness and the applicability for backwashing method of filter layer in Jinju water purification plants, and the cleaning efficiency of three different backwashing methods has been investigated.
Actually, dual media of anthracite and sand was replaced sand filter. Improving filter run time was extended 2.42 times. Thus, the backwashing numbers is 16 to 25 for present filter in summer. And that improving backwashing number was reduced 7 to 10 with same water quality, and media loss was not developed any more.
An applicability analysis of KOWACO and Jinju water purification plants was showed little difference for water with air-backwashing equipment. Cost of construction for improving backwashing method of filter layer amounts about 406 million won in case of Jinju water purification plants. This cost to pay back after 5 years.

목차 (Table of Contents)

• 1.서론
• 2.진주시 상수도 현황
• 3.역세척 방법
• 1)표면 세척(4~6분)
• 2)역류 세척(15분)
• 3)공기역세척(공기 5분, 물 10분)
• 4.여과층 및 여재의 구성
• 5.기존정수장에서의 물과 공기병용 역세척 방식의 적용성 검토
• 6.연구의 결과 및 고찰
• 7.결론