Oil pollution
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Causes of oil pollution
• leaks from pipelines • intentional oil spills • accident spills • domestic disposal of oil down the drain
Effects of oil pollution
• some elements of the oil is toxic • reduces amount of dissolved oxygen • eutrophication
How does recycling control oil pollution
• separation and storage • cooking oil can be converted to biodiesel
How does improved tanker operation control oil pollution
• better navigation equipment e.g. GPS • AIS trackers • restricted shipping routes - away from protected/hazardous areas • washing procedures - prevents build up of sludge
How does improved tanker design control oil pollution
• double hulls - only outer layer is protected in an accident • having 2 of all important equipment - e.g 2 engines
How do bund walls control oil pollution
• walls that would contain the oil of the tankers failed
How do oil interceptors control oil pollution
• fitted to drains on busy roads • fitted to drains on car parks • oil left on surface and water moves through
What are some natural remediation to clean up oil spills
• evaporation - lighter components evaporate/heavier components are left to produce tarballs • dissolution - some oil can dissolve in water • microbial degradation - bacteria etc can break down the oil
What are some clean up methods to help with oil pollution
• physical methods - booms (floating barriers, prevent spill spreading), skimmers (remove oil from waters surface) • chemical methods - dispersants ( chemicals that break down the oil into smaller droplets, easier to biodegrade) • biological methods - microorganisms break down and digest oil