Sewage Treatment Plant in Ranchi - Jharkhand
We are Best Sewage Treatment Plant (STP) Provider in Ranchi.
Sewage Treatment Plant (STP)
We have best quality sewerage systems in place to carry the wastewater from our homes, hotels, factories and other establishments to a sewage treatment plant. Where the wastewater is treated. The treatment of wastewater goes through different stages. Wastewater is treated to remove the physical chemical and biological contaminants present in it through various processe. The pretreatment process involves the sewage being sent through grids or vertical bars that can remove large solid substances like metal cans paper and plastic materials. In primary treatment process the sewage flows through the grit chamber very slowly. So that the sand, pebbles and soil settle down at the bottom. The sewage flows into the settling tank or sedimentation tank where the solid wastes like feces are allowed to settle down. Waste such as soaps oils and grease rise to the top of the wastewater. the waste material that settles down at the bottom is called the sludge. and the floatable material is called the scum. scum is then removed using a skimmer and sludge is removed with a scraper every few days. the water that is left out is called the clarified water.
In the secondary treatment process biological or organic wastes are removed. It is a biological process this is done by transferring the clarified water into an aeration tank. Where air blowers bubble air, which helps the aerobic bacteria to grow and feed on the organic contaminants such as food waste feces and other organisms.
The mixture then flows from the aeration tank into the clarifier where activated sludge settles out by gravity. The activated sludge so produced along with the sludge produced in the primary process is transferred to the digester where it is decomposed by anaerobic bacteria. Biogas is produced in this process which can be used as fuel or can be used to produce electricity. The activated sludge is then left in the sand drying beds.