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The Figure below show the typical Water Treatment Unit Processes and Their Arrangement. These

processes are typically used for treatment of:

Influent from

surface water

Screen

Oxidant/

disinfectant

PH

control

Particulate

material

Coagulant

Rapid

mix

Water return

from filter waste

washwater recovery

system and solids

dewatering

Flocculation/

sedimentation

Solids to

dewatering

O Water with high levels of dissolved constituents

O Air pollution

O Ground water

O Surface water

Polymer

Oxidant

disinfectant

Granular

filtration

Filter waste

washwater

Clear-well

storage

Effluent to

distribution

system

Filter washwater Water processing

Solids processing

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