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2. Vacuum truck - Wikipedia

   en.wikipedia.org/wiki/Vacuum_truck

   A vacuum truck, vacuum tanker, vactor truck, vactor, vac-con truck, vac-con is a tank truck that has a pump and a tank. The pump is designed to pneumatically suck liquids, sludges, slurries, or the like from a location (often underground) into the tank of the truck. The objective is to enable transport of the liquid material via road to another ...

3. Oil–water separator - Wikipedia

   en.wikipedia.org/wiki/Oil–water_separator

   The oil accumulating at the top is then transferred with some en-trained water to a waste oil tank. This type of oily water separator is very common for many industrial applications as well as in ships but it has some flaws that decrease efficiency. Oil particles that are sixty micrometers in size or smaller do not get separated.

4. Centrifugal water–oil separator - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_water–oil...

   Centrifugal oil and water separators do have their disadvantages. One known disadvantage of these separators is that they tend to have low powered suction. For example, when the pump end is dry and the impeller is rotating at high speeds, it is simply not powerful enough to lift the oily water mixture into the separator.

5. API oil–water separator - Wikipedia

   en.wikipedia.org/wiki/API_oil–water_separator

   Typically, the oil layer is skimmed off and subsequently re-processed or disposed of, and the bottom sediment layer is removed by a chain and flight scraper (or similar device) and a sludge pump. The water layer is sent to further treatment for additional removal of any residual oil and then to some type of biological treatment unit for removal ...

6. Hydraulic ram - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_ram

   2. Free flow at waste valve 3. Outlet – delivery pipe 4. Waste valve 5. Delivery check valve 6. Pressure vessel. A simplified hydraulic ram is shown in Figure 2. Initially, the waste valve [4] is open (i.e. lowered) because of its own weight, and the delivery valve [5] is closed under the pressure caused by the water column from the outlet [3].

7. Oily water separator (marine) - Wikipedia

   en.wikipedia.org/wiki/Oily_water_separator_(marine)

   The oil accumulating at the top is then transferred to waste oil tank on the vessel where it is later discharged to a treatment facility ashore. This type of Oily Water Separator is common in ships, but it has flaws that decrease efficiency. Oil particles that are twenty micrometers or smaller are not separated.