ONGC Training Programme on “Recent trends in Environmental Management strategies in Petroleum, Petrochemical and Fertilizer Industry” I I T R Sponsored By Central Pollution Control Board February 11-13, 2008 Venue: Continuing Education Center Conference Hall Dr. I. D.Mall Dr. I. D.Mall Professor Professor Course coordinator Course coordinator Deptt.Of Chemical Engg Deptt.Of Chemical Engg IIT Roorkee IIT Roorkee
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ONGC
Training Programme
on “Recent trends in Environmental
Management strategies in Petroleum,
Petrochemical and Fertilizer Industry” IITR
Sponsored By Central Pollution Control Board
February 11-13, 2008Venue: Continuing Education Center
Conference HallDr. I. D.MallDr. I. D.Mall
Professor Professor Course coordinatorCourse coordinator
Deptt.Of Chemical EnggDeptt.Of Chemical EnggIIT RoorkeeIIT Roorkee
ONGC
Recent trends in environmental management strategies in oil & gas
exploration & production
Dr A K Agnihotri
DGM (Chemistry)
ONGC
Water: Issues
• Nearly half of the world's people will live in water-stressed areas by 2025 (WRI)
• Our population of 1 billion is going to double in next twenty years
• Water resources have been exploited to the extent possible
• No consideration to future generation
• Result: Grave threat to Sustainability
ONGC
Oil & Gas Industry
• Less water intensive process
• Aging of reservoir
• Produced Water
• Produced water Treatment
• Water Injection into reservoir/disposal
ONGC
ONGC: Treatment Facility
Onshore
21 ETPs treat about 43,000 m3/d of effluent
Offshore
15 PWCs handle about 1,00,000 m3/d of
produced water
ONGC
Discharge Standards for oil & Gas Industry
Sl No Parameter On-shore discharge Marine Discharge Offshore Discharge
1 pH 5.5 -9.0 5.5 -9.0 -
2 Oil & grease 10 10 40
3 Suspended solids 100 100 -
4 Total Dissolved Solids 2100 - -
5 BOD at 27°Cfor 3 days 30 30 -
6 COD 100 - -
7 Chlorides 600 - -
8 Sulphates 1000 - -
9 Phenolics 1.2 - -
10 Cyanides 0.2 0.005 * -
11 Sulphides 2.0 - -
12 Zinc 2 0.1 * -
13 Chromium (hexavalent) 0.1 - -
14 Chromium (Total) 1.0 0.1 * -
15 Copper 0.2 0.05 * -
16 Lead 0.1 0.05 * -
17 Mercury 0.01 0.01 * -
18 Nickel 3.0 0.1 * -
mg/L
* The maximum individual pollutant concentration level in sea water within a distance of 50 meter from the discharge point.