Effluent
Treatment Plant (ETP):
Industries
through waste liquor into rivers, canals etc. Before flowing this liquid to
outwards, the plant which treats this effluent to a harmless form for the
environment is known as Effluent Treatment Plant (ETP).
ETP
|
Process Flow Chart of Effluent Treatment Plant
(ETP)
Collection Tank
↓
Storage Tank
↓
Mixing & Cooling
↓
Neutralization
↓
Chemical Coagulation
↓
Biological Oxidation Tank
↓
Sedimentation & Separation of Sludge
↓
Sludge Thickener
↓
Filtration
↓
Discharge to Drain
Collection Tank: Commencing part, waste from different section enter here.
Storage Tank: Several blower pipe in this chamber. Mixing properties are different with temp. as well.
Mixing & Cooling: Cooling tower is on paddle mixer used for mixing.
Neutralization: PH is controlled here.
Chemical Coagulation: Fe₂(SO₄)₃, Al₂(SO₄)₃ etc use for coagulation.
Biological Oxidation Tank: Artificially Eco-system established. Blowing air helps to live micro-organism.
Sedimentation & Separation of Sludge: The blanket of precipitations is skimmed off to another tank and remaining solution is removed to pressure filter.
Sludge Thickener: After exceeding the required level of recycling, sludge passed through thickening chamber.
Filtration: Filtration layer consists of sand rock which filter wet sludge to extract water rest in it.
Discharge to Drain: Release to environment with the check of final load of effluent in it.
