Waste lubricating oil can be collected, filtered, refined and reformed to make more lubricating oil
This reduces pollution and conserves a valuable non-renewable resource
As crude oil is cheap, there is little incentive to recycle. Especially as recycling can be labour intensive and expensive
Waste oil that cannot be recycled can be burned as a fuel.
Good mainrenance will reduce leakage from vehicle engines and pipelines etc.
Oil storage tanks can be built on a solid impermeable base surrounded by a bund wall.
This will contain the oil if the tank is split.
The volume contained by the bund walls should be greater than that of the tank.
Improved ship tanker design
- Tankers with double skinned hulls: they are less likely to rupture if they run aground.
- Tankers with twin engines, twin fuel tanks and twins rudders: less likely to be disabled in mechanical failure
- When the tanker is empty of oil, it must carry ballast water to keep it low enough in the water for it to be stable: the larger and more modern tankers have seperate oil and water tanks so it is not not necessary to carry ballast water in oil tanks which would be pumped out later when it became contaminated
improved ship tanker operation
- Better crew training: reduced risk of accidents
- inert gas systems:(involves use of inert gases, eg cooled engine exhaust gases, to fill oil tanks when oil is pumpd out) this reduced risk of explosions
- crude oil washing: reduces need to wash out tank
- all oil terminals and refineries will now accept oily washing water so there is no need to pump overboard.
Oil that is floating on washing or drainage water may be collected from the surface of the water.