Variety 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.

The centrifugal pump is one of the many types of equipment used for dewatering. The impeller pushes all of the air out of the drainage pipe. This results in a rise in atmospheric pressure. The atmospheric pressure causes the water to rise into the pipes and be pushed out into the disposal area. The casing of the pump is at times filled with liquids to avoid air and natural gas blocking the passage.

There are also the displacement pumps. As the name suggests, the air in the cylinder is displaced by the aquatic as it goes into the chamber. The piston, when pushed, exerts force through the chamber forcing the aquatic to go out through the other end. The diaphragm pumps are not all that different. The aquatic is pushed out when the diaphragm moved downwards.

There is a kind of pump that does not involve any kind of moving parts. This is known as an airlift pump. It only has one vertically placed pipe. This pipe is usually connected to a supply of compressed pressure. This air once released carries the water with a lot of force into the disposal area. Compared to other kinds of pipes, it is the easiest one to use.

Centrifuges are used for dewatering. The main goal is to separate the solid from the liquid. There usually is a small bowl spinning at a very high speed. The force of this speed directs water in one way and the solid in another. The solids are usually attached to the walls of the bowl and are removed after the process is done.

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.

Vacuum filters is also another method of draining unwanted water. Just like in the use of centrifuges, the main aim is to separate the solid from the liquid. The porous plates separate the liquids from the solid. The pressure pushes the water into the pores and further into the drainage pipe while the solid is stuck in between the pores.

Finally, there is the sludge lagoon. This is used in preventing water from any sort of liquid from seeping onto the surface. It may be left for almost a year or more when the liquid has naturally evaporated, or the buildings foundation is built on there.




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