1. A lecture on
Awareness about
Oil SPILL
by
Rajeeva Ranjan
Ex-Coast Guard
Website: www.virajcse.com
VirajCSEViraj Clean Sea Enterprises (P) Ltd.

2. CausesofSpills
Figure 4: Incidence of Spills < 7 Tonnes by Cause,1974-2002
Figure 5: Incidence of Spills 7-700 Tonnes by Cause, 1974-2002

3. SpillsData
Figure 2: Quantities of Oil Spilt
Figure 1: Numbers of Spills over 700 tonnes

4. TypeofOils

5. FateofMarineOilSpill

6. Fate of Marine Oil Spill in
Marine environment
1. Spreading
2. Evaporation
3. Dispersion
4. Emulsification
5. Dissolution
5. Dissolution
6. Oxidation
7. Sedimentation
8. Biodegradation

7. AssessmentoftheDriftofaSlick
V oil = v current + V wind X Q
In which:
V oil = velocity of the oil
V current = velocity of seawater
V wind = velocity of wind at a height of 10 m
Q = empirically established wind speed factor (usually about 3%)

8. Effects of Oil Spill on Marine &
Coastal Resources
• Environmental Impacts
1. Recovery Potential
2. Habitats and Species at
Risk
3. Restoration
• Economic Impacts
1. Fishries & Mariculture
• Ecological effects
• Recreational Beaches &
sea areas
• Port & Marinas
• Industrial installations
• Fisheries
• Marine animals
• Marine Birds
• Coral communities and
ecosystems
• Wetland communities &
ecosystem
• Nature reserves and
marine parks

11. Situation Evaluation and
Response Options
1. Identification of sources & incident details
2. Prevention or reduction of further spillages
3. Aerial surveillance, including remote sensing
4. Assessment of the threat
5. Spill response options and their limitations

12. Oil Spill Cleanup Techniques
• Response at Sea
1. Booms and skimmers
2. In-situ Burning
3. Dispersants/Chemicals
• Protecting sensitive resources
• Shoreline Clean-up
1. Bioremediation
• Disposal

13. Oil Spill Cleanup Techniques
1. Chemicals Dispersant
2. Containment and Recovery
3. Shoreline Cleanup
4. Alternative Techniques for
Spill Response

14. 1. Chemical Dispersants
c. Shoreline application
a. Vessel spraying b. Aerial spraying

16. Containment and Recovery

17. Shoreline Cleanup
b. Oil
a. Strategy

18. c. Sand beaches
f. Organisatione. Sorbent materials & Bioremediation
d. Rocky Shores

19. Alternative Techniques for
Spill Response
b. Optimum conditions
1. In-Situ Burning a. Ignition
c. Smoke and d. Residue

20. 2. Bioremediation a. Bioremediation
b. Bioaugmentation 3. Landfarming

21. Website: www.virajcse.com
VirajCSEViraj Clean Sea Enterprises (P) Ltd.