What is a sedimentation tank?

The

sedimentation tank is part of the system for removal of dirt from liquids, especially water. In most cases, the sedimentation tank is nothing but a large tank for holding water, often with a special system of material removal at the bottom. Some tanks are tall and thick, while others are long and very shallow; This is based on the overall purpose of the tank. In some sedimentation systems, solid particles simply allow you to settle on the bottom of the tank. Other methods require a special binding substance to be added to the liquid before sedimentation.

Sedimentation is a common method of removing particles from the liquid. Most large systems relate to water, but other liquids can be cleaned by sedimentation. The most common water -free liquids that can use the sedimentation tank are industrial solvents and cleaners, as well as some types of liquid polymer. Yet water is much more common for sedimentation than any other liquid.

Simple. If the water is maintained long enough, any solid material suspended in the water simply falls to the bottom or floats to the top of the tank. Because most natural solids are either heavier or lighter than water, they must do all systems to remove solid dirt, is a scratch from the upper and lower part of the tank.

In order to accelerate this process, the tank is generally placed in the water. The established chemicals create a reaction that begins to attract dirt to them. Agents associate with dirt and create small balls of the collected material. Because these balls are larger than the solids before, gravity pulls them to the bottom of the tank faster.

This process is common in the treatment of waste water, but less in wastewater. In the typical waste water system, particles are mostly benign impurities. These impurities are unwelcome but not harmful, for processes usedExtreme water. In the case of waste water, shear amounts of bacteria and harmful substances in water are less difficult and coagulation less effective.

There are two basic styles of sedimentation tanks. High and fat tanks are generally used as an early stage of water treatment and are as much for storage as treatment. These tanks have enough space to keep the water sitting for a long time, allowing large residues such as rocks or sticks. Since they store water and treat it, they must be very large.

The second type of sedimentation tank is long and shallow. This tank design is usually inside the water cleaning system. Since the tank is thus shallow, it takes less time for the hung particles to fall to the bottom. These tanks are usually used for the steps of coagulation in water treatment.