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Water Treatment process

Water Treatment process

Water Treatment process




Sedimentation tanks are the workhorse of any water purification process.

Sedimentation is the process of separating solids from the liquid stream. The performance of sedimentation tanks (ST) depends on several interrelated process and factors.

Sedimentation i,e gravity separation is one of the simplest of technologies available to control particulate solids in process water and wastewater.

Sedimentation tanks require little energy input are relatively inexpensive to install and operate, require no specialized operational skills, and can be easily incorporated into both new and existing facilities.

Particles experience a force, either due to gravity or due to centrifugal motion, tend to move in a uniform manner in the direction exerted by that force.

The particles will tend to fall to the bottom of the vessel, forming a slurry at the vessel base.

The size of the sedimentation shall vary from the capacity of the plant.

Dos and Don'ts in sedimentation tank operation for safety :


1.Use safety shoes or boots with non-slip soles.

2. Wear personal protective equipment and chemical resistance clothing to avoid exposure of skin or eyes to corrosive and or polluted solids, liquids gases or vapors.

3. Check electrical equipment for safety before use (for cleaning, illumination etc..) verify that all electrical cables are properly insulated take faulty or suspect electrical equipment to a qualified electricity technician for testing and repair.

4. Wear safety goggles in all cases where the eyes may be exposed to dust , flying particles or splashes of harmful liquids.

5.Wear Respirator or gas mask when exposed to harmful aerosols , dusts, vapors or gases.

6.Take extreme care when handling highly corrosive agents such as liquids or gaseous chlorine , concentrated acids or alkali (chemicals used for concrete) or when toxic gases may be emitted from the reagents etc..

7. Periodical removal of sludge shall be carried for efficient working of the sedimentation tank.





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