Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Strategy for efficient operation on the backwash waste treatment in membrane filtration water treatment plant

막여과 정수장 배출수처리시설의 효율적인 운영방안

  • 정원채 (한국수자원공사 연구원 상하수도연구소) ;
  • 유영범 (한국수자원공사 연구원 상하수도연구소) ;
  • 이선주 (한국수자원공사 연구원 상하수도연구소) ;
  • 문용택 (한국수자원공사 연구원 상하수도연구소)
  • Received : 2014.05.12
  • Accepted : 2014.08.14
  • Published : 2014.08.15
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Abstract

Membrane backwashing waste shows seasonally different characteristics and it has bad settleability differently from general backwashing waste in water treatment plant. When chemicals was injected to membrane backwashing waste, the settleability was better than chemicals was not injected. However, when settled lower sludge was not discharged, flowing sludge continuously was concentrated over a certain surface and floatation penomena occurred according to flowing velocity. When the lower sludge was discharged continuously in the thickener to prevent floatation penomena of turbidity materials, the depth of sludge surface was the least and the settleability increased.

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References

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