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Saturday, September 18, 2004

OIL REFINERY : STANDARDS FOR LIQUID EFFLUENT

OIL REFINERY : STANDARDS FOR LIQUID EFFLUENT

Parameter Concentration not to exceed, limit in mg/l (except for pH) Quantum, kg/1000 tonne Crude processed not to exceed
Oil & grease
10
7
Phenol
1
0.7
Sulphide
0.5
0.35
Bio-chemical oxygen demand (3 days, 27oC)
15
10.5
Suspended solids
20
14
pH
6 to 8.5
Source : EPA Notification
[S.O. 844(E), dt. 19th Nov., 1986]

45.1 Oil Refinery : Standards for Sulphur Dioxide

Process
Emission limit
Distillation (Atmospheric Plus Vacuum)
0.25 kg/tonne of feed
Catalytic Cracker
2.5 kg/tonne of feed
Sulphur Recovery Unit
120 kg/tonne of sulphur in the feed
Source : EPA Notification
[G.S.R. 742(E), dt. 30th Aug; 1990]

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