Friday, 14 July 2017

Standards for Discharge of Liquid Effluents from Coal based Thermal Power Plants in India

Environmental Regulations for Coal based Thermal Power Plants in India

Standards for discharge of Liquid Effluents

S.NSourcePollutantsConcentrations
1Condenser Cooling Water
(Once through Cooling System)
pH

Temperature



Free available Chlorine
6.5-8.5

More than 10°C than the intake water temperature

0.5mg/L
2Boiler Blow-downSS
Oil & Grease
Copper(total)
Iron (total)
100mg/L
20mg/L
1mg/L
1mg/L
3Cooling Tower Blow- downFree available Chlorine

Zinc
Chromium
Phosphate

Other Corrosion inhibiting materials
0.5mg/L



1mg/L
0.2mg/L
5mg/L

Limits to be established case by case basis
4Ash Pond EffluentpH
SS
Oil & Grease
6.5-8.5
100 mg/L
20mg/L

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