Iii water treatment topic iii 4 upflow sludge blanket clarifiers processes and facilities
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III. Water Treatment Topic III.4. Upflow Sludge Blanket Clarifiers: Processes and Facilities PowerPoint PPT Presentation


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III. Water Treatment Topic III.4. Upflow Sludge Blanket Clarifiers: Processes and Facilities. Processes: I. Particularities Applying of contact coagulation Flocullation chamber don’t needed II. Advantages Higher rate of coagulation Deeper process of coagulation

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III. Water Treatment Topic III.4. Upflow Sludge Blanket Clarifiers: Processes and Facilities

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Iii water treatment topic iii 4 upflow sludge blanket clarifiers processes and facilities

III. Water TreatmentTopicIII.4. Upflow Sludge Blanket Clarifiers: Processes and Facilities

Processes:

I. Particularities

  • Applying of contact coagulation

  • Flocullation chamber don’t needed

    II. Advantages

  • Higher rate of coagulation

  • Deeper process of coagulation

  • Less coagulant quantity needed

  • Negligible temperature impact

    III. Disadvantages

  • More sludge production

  • Not applicable for SS > 2500 mg/l


Upflow sludge blanket clarifying processes

Upflow Sludge Blanket Clarifying Processes

Basic Parameters

Suspended solidsUpflow velocityDistribution coefficient

mg/l mm/s -

< 501,5 - 1,60,95

50 - 1001,6 - 1,80,90

100 -5001,8 - 2,00,85

500 - 10002,0 - 2,20,75

1000 - 2000 2,2 - 2,5 0,70


Upflow sludge blanket clarifiers

Corridor Type

1 - perforated coarse water

distribution pipes

2 - sludge blanket

3 - sludge overflow orifices

4 - sludge thickening zone

5 - water clarifying zone

6 - channels for clarified water

7 - collector for clarified water

8 - sludge withdrawing pipes

Upflow Sludge Blanket Clarifiers


Upflow sludge blanket clarifiers1

Circular Type

1 - inflow channel; 2 - air release chamber; 3 - inlet water pipes; 4 - perforated water distribution pipes; 5 - protecting shields; 6 - sludge blanket; 7 - lamellas; 8 - water clarifying zone; 9 - perforated outlet pipes for clarified water; 10 - collecting channel

Upflow Sludge Blanket Clarifiers


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