Wednesday, March 14, 2018

Types Of Dewatering Equipment Used

By Helen Wagner


Dewatering is a process through which excessive water is removed from the ground in order to facilitate proper construction. A building that is constructed in an environment with water may not be very strong and is bound to fall apart after a while. Water removal equipment depends on the corrosion ability of the material in question. Pumps are the main types of dewatering equipment.

One of the ways people use to draw water from underground is by use of pumps. A good example is a centrifugal pump. The pump has an impeller whose main function is to push out all the air from the pipe. As the water is pushed, the water rises due to a rise in atmospheric pressure and is pulled and deposited in the disposal area.

The displacement pump is also commonly used. They have two main kinds of pumps which is the reciprocating pumps and the diaphragm pumps. The reciprocating pumps involve the pushing of a piston through the chamber and water coming out the other end. The diaphragm pump involves the moving up and down of the diaphragm and as it pushes down the water is moved into the disposal unit.

Airlift pumps are also used for the lifting of the water. They, however, do not have any moving parts. There is a long perpendicular pipe that connects with compressed pressure. The pressure, once released, is able to push the aquatic up and all the way to the area of discharge. They may actually be the easiest kind of pump to use there is.

When you hear of centrifuges, you may mistake them for centrifugal pumps. They are actually not the same thing. The centrifuges consist of a bowl that keeps spinning at a very high speed. The main aim of a centrifuge is to separate the liquid from the solid. Due to the high speed, the liquid is pushed into one direction while the solid remains stuck on the walls of the bowl.

Vacuum filters are another way of dewatering. This is mainly used for removing liquids from solids. They save money that would have been used in heat treatment. This is saving money especially if the solid in question was to be disposed of in the long run. It may difficult to dispose of some solids especially when they still have some liquid in it.

There is another equipment that works almost similarly with a centrifuge. It is known as filter presses. It is also used for the purposes of separating solids and liquids. However, instead of a bowl, there is the use of porous plates. The aquatic is forces out of the pores while the solid is caught up in the cavities of one or more plates.

The sludge lagoon is put around 2-6 feet underground. The main aim is to prevent the water from coming on to the surface. If the liquid is water, the sludge may crack and therefore lead to natural evaporation of the water.




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