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TreatmentPollutants RemovalEquipment/Process1. PrimaryI. Biological contenta. Activated sludge and filters2. SecondaryII. That settles or floatsb. Carbon absorption and neutralization3. TertiaryIII. Suspended solids, refractory organics and toxic componentsc. Clarifiers and oil – water separator devises

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<table border='1' cellspacing='0' cellpadding='0'><tbody><tr><td>Treatment</td><td>Pollutants Removal</td><td>Equipment/Process</td></tr><tr><td>1. Primary</td><td>I. Biological content</td><td>a. Activated sludge and filters</td></tr><tr><td>2. Secondary</td><td>II. That settles or floats</td><td>b. Carbon absorption and neutralization</td></tr><tr><td>3. Tertiary</td><td>III. Suspended solids, refractory organics and toxic components</td><td>c. Clarifiers and oil – water separator devises</td></tr></tbody></table><br>






 
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