T8 - CIVL 242 Water and Wastewater Engineering Tutorial 8...

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Tutorial 8 TA: Pang Shing Kin ([email protected]) So Wing Kin ([email protected]) CIVL 242 Water and Wastewater Engineering
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Preliminary Treatment:  Screen, Comminutor, etc. Primary Treatment:  Primary Sedimentation Secondary Treatment:  Aeration, Sedimentation Final Treatment: Tertiary Treatment: Filtration, GAC, etc. Overview CIVL 242 Water and Wastewater Engineering
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Removal of coarse solids and other large materials often found in  raw wastewater to enhance the operation and maintenance of  subsequent treatment units   Bar Screen: Screen out large debris. Grit Chamber: The velocity of the water through the chamber is maintained sufficiently  high, or air is used, so as to prevent the settling of most organic solids   Comminutors: Sometimes adopted to supplement coarse screening and serve to  reduce the size of large particles so that they will be removed in the form of a sludge in subsequent treatment processes  Preliminary Treatment CIVL 242 Water and Wastewater Engineering
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This note was uploaded on 09/13/2011 for the course CIVL 242 taught by Professor Gh during the Fall '09 term at HKUST.

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T8 - CIVL 242 Water and Wastewater Engineering Tutorial 8...

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