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Waste Water (Measurement (Organic (BOD (BOD test (oxygen require by…

- - - - TVS
        
        VDS
        
        VSS
      - TFS
        
        FSS
        
        FDS
    - - Imhoff cone
      - Evaporation
  - - - BOD test
        
        oxygen require
        by bacteria
    - - COD test oxidize organic
    - - convert carbon to
        carbon dioxide
- - - - Physical
      - Chemical
      - Biological
    - - Primary
        
        suspended solid
      - Secondary
        
        biodegradable
      - Tertiary
        
        residual suspend
      - Advanced
        
        residual dissolved
      - Preliminary
        
        large constituents
  - - - Coarse
        
        bar rack
      - Fine
        
        Band
        
        Wing
        
        Drum
    - - Girt Tank
      - Clarifier
        
        Primary
        
        suspended solid
        settling organic
        
        Secondary
        
        boireactor
      - Sludge Thickening
    - - Discrete
      - Flocculent
      - Zone
    - - seperate solid from water
        by air bubble