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Development History and Direction of On-site Algae Collecting System with Flotation Technology

부상분리 기술을 이용한 현장형 조류수거시스템의 발전 과정 및 개발 방향

  • Received : 2017.01.16
  • Accepted : 2017.03.31
  • Published : 2017.04.30

Abstract

On-site Algae Collecting System (OACS) is one of urgent countermeasures to clean the raw water when the algae blooms severely. Rapid reaction capability, high efficiency and large capacity are required when applying OACS to large water areas. The total performance of OACS are always determined by unit process named Flotation, Trapping and Collection. The working efficiency and daily treatment quantity of OACS can be increased when it runs automatically. As the rapid development of OACS technology, in the first place, equipment are miniaturized and simple. And in the second place, automation process from Trapping to Collection are advanced. So, They produce results higher working efficiency, smaller residual sludge on treated water, system's advanced environmental friendly features and the increased amount of sludge by Collection process to achieve large capacity. Now OACS has overcome the algae multiplication rate to ensured the amount of removal algae. In another aspect, it is high economically feasible because of reducing operation cost against the large capacity.

현장형 조류수거시스템(이하 OACS)은 녹조 현상이 심각할 때 긴급 대책으로 투입되는 대안 중의 하나로, 대규모 수역에 투입되는 OACS가 갖추어야 할 조건은 신속대응성, 효율성 및 대용량이다. 부상분리 기술을 이용한 OACS의 성능은 부상 포집 수거 공정의 효율에 의해 결정되며, 처리용량 및 효율성에 가장 중요한 인자는 포집과 수거이다. 이들이 자동화되면 전체 작업속도와 일일 처리수량이 증가한다. OACS에 적용된 기술은 진보될수록 장비의 단순화 소형화와 포집과 수거 공정 자동화가 발전하여 신속대응성과 효율성이 향상되었으며, 잔류슬러지를 크게 줄여 친환경성과 수질 지속효과를 향상시켰고, 슬러지 수거량도 증가하여 대용량이 실현되는 방향으로 개선되었다. 그 결과 시스템은 조류증식비율을 극복할 수 있는 조류제거량을 달성할 수 있었고, 처리용량 대비 운영비가 감소되어 기술의 경제성을 크게 향상시켰다.

Keywords

References

  1. Ministry of Environment, Ministry of Science & ICT and Future Planning, Ministry of Land & Infrastructure and Transport, Report of collaborated study about 10 subject of practice to solve social problems; (3) Safe water supply against algal bloom strikes back, pp. 1-93(2014).
  2. SAMAN Co. LTD., Korea Environment Institute, A Study about Water Quality Management Plan of Dry Season, Korea Environment Corporation, 1-482(2013).
  3. Srinivasan, A. and Viraraghavan, T., Dissolved air flotation in industrial wastewater treatment, UNESCO EOLSS, 1-6(2011).
  4. SIB Co, LTD., A Mobile Water Purifying System, Korea Intellectual Property Office, Patent 10-0292426, 1-6(2001).
  5. K-water Institute, Engineering Technologies for High Efficiency Green-tide Harvesting System and Microalgal Biomass to Convert Renewable Resources at the Water-Bloom of River (1st year), Korea Water Resources Corporation, 1-86(2014).
  6. SDRND Co. LTD., Final Report about Seoul Grand Park's Water Quality Improvement Service on Goldfish Square Pond and Bandoji Reservoir, Seoul Grandpark Management Office, 1-50(2005).
  7. SDRND Co. LTD., Final Report about Geumosan Provincial Park's Water Quality Improvement Service on Geumoji Reservoir in 2007, Geumosan Provincial Park Management Office, 1-120(2007).
  8. Geomarine corporation, http://blog.daum.net/naturehomes (2016).
  9. SDRND Co. LTD., Final Report about Algal Removal Ship Building and Purchase, Korea Rural Community Corporation Chungnam Regional Headquarters, 1-72(2012).
  10. SDRND Co. LTD., Ships for eliminating algae, Korea Intellectual Property Office, Patent 10-1436813, 1-18(2014).
  11. Kyunghee University, SDRND Co. LTD., KC-RiverTech Co. LTD., Chung-Ho Environmental Development Co. LTD., Final Report about an Application of Water Quality Improvement Pilot Facility on Giheung Reservoir, Korea Environment Corporation, 1-382(2014).
  12. SDRND Co. LTD., Algae collection method, Korea Intellectual Property Office, Patent 10-1371405, 1-14(2013).