Pond skimmers
None. Skimmers are mechanical devices, which use the surface tension of the oil to pull oil into a boat.
Skimmers are devices used to remove oil from the surface of water. They work by either utilizing absorbent materials to soak up the oil or by using mechanical means to physically separate the oil from the water. Skimmers can be deployed in oil spill cleanup operations to recover oil and minimize its impact on the environment.
If you have a top skimmer basket the water level should be at least an inch above the basket, so you are not sucking any air. They seem to operate more effectivly at removing floating material BEFORE IT SINKS if the level is about half the distance from the top to the bottom of the skimmer opening.
Oil collectors are typically referred to as "oil skimmers." These devices are used to remove oil from the surface of water or other liquids. Oil skimmers work by utilizing various methods such as belts, disks, or tubes to attract and collect oil for disposal or recycling.
They clean it off of the surface of the water by skimming the surface with Booms,skimmers,sorbents,chemicals,vaccums, and shovels. Hope this helps Then the skimmed oil, if in larger quantities can be recycled economically.
Skimmers have limitations. It is very hard to skim off oil if oil is continuing to flow from the well. However, the skimmers are being employed at the most critical areas of the spill where they can be most effective, in hopes of reducing environmental damage. See related links.
satellites
Surface water will collect in hollows, ditches, reservoirs, add to the water table, etc.
When making stock, ladles or skimmers are valuable for removing any impurities, foam, or scum that rise to the surface during the cooking process. This helps to clarify the stock and improve its flavor and appearance. By skimming off these unwanted elements, you ensure a cleaner and more refined final product.
I have seen pictures of drum skimmers being used in the Gulf of Mexico. Also, belt skimmers apparently are being used. The idea is the same. To get the oil off the surface of the water, the oil must come into contact with an absorbant material, then the oil must be squeezed out. BP is employing as many as 400 vessels of opportunity to do the skimming. Many are fisherman who can use the money. See related link.
Surface tension.