• 제목/요약/키워드: 상하수슬러지

검색결과 26건 처리시간 0.015초

정수 슬러지 발생량 조사 및 슬러지 처리시설의 공정평가 (Research of Sludge Quantity and Evaluation of Sludge Handling Facilities in Water Treatment Plants)

  • 문성용;김승현
    • 상하수도학회지
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    • 제18권3호
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    • pp.279-290
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    • 2004

  • Sludge quantity has increased at "A"water treatment plant due to deterioration of raw water quality and GAC installation. Increased sludge resulted in overloading on sludge handling facilities. The object of this study is to survey sludge quantity and capacity of sludge handling facilities at "A"water treatment plant. Measured quantity of sedimentation sludge considerably exceeded the design capacity of sludge holding basin. Sludge holding basin was properly designed, but low concentration of sludge discharged from sedimentation basin caused production of large volume of the sludge. Timer operated control system for sludge withdrawal unit and leakage through a control valve were suspected to cause the low concentration. Augmentation of the control system by a turbidity meter and addition of a new control valve successfully reduced the sludge volume enough to satisfy the design capacity of sludge holding basin. Unlike sedimentation sludge, measured quantity of washwater was considerably less than the design capacity of washwater basin because it was over-designed.

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