How to Sewage Treatment Plant work, Explain in detail?
The natural process of water purification is supplemented by waste water treatment. Wastewater treatment programmes are organised and implemented to maximise the use of natural resources. Water is purified and made usable again at industrial wastewater treatment plants and sewage treatment plants.To meet the demands of citizens, industry, and communities, two wastewater treatment procedures are typically used.
What is the difference between these two approaches?
1-Primary Treatment
A primary industrial wastewater treatment plant uses screens, a grit chamber, and a sedimentation tank to provide high-quality water free of garbage and harmful bacteria. Sewage goes through a number of cleaning steps before being ejected as quality water. When sewage enters the treatment plant, it passes through a screen to remove large floating debris that could clog or damage pipes or equipment. Water falls into a grit chamber after the primary screening process, where tiny items are removed from the water. At the bottom, it deposits cinders, sand, and stones.
Following the above two applications for the removal of large and tiny objects, sewage water contains a large amount of suspended solids, both organic and inorganic. Water purification necessitates the removal of minute particles. This procedure is carried out in a sedimentation tank. Solids sink to the bottom of this tank as the flow of water is reduced.
Raw primary bio solids, formerly sludge, are a type of solid that is pumped out of the tank.Gradually, this primary strategy became unable to match the community's rising quality expectations. To meet the needs of cities and industries, secondary and advanced procedures are developed.
2-Secondary Treatment
This stage removes roughly 85 percent of the organic and inorganic waste particles from the water using a trickling filter and activated sludge process.When the primary stage is finished and the effluent has left the sedimentation tank, the trickling filter is activated. The sewage travels through a six-foot-deep bed of stones in the trickling filter. After passing through a trickling filter to eliminate bacteria, partially treated sewage is sent to another sedimentation tank.
Nowadays, instead of a trickling filter, an activated sludge technique is used. When compared to the filter, the process is quick and provides immediate results. Sewage flows into the aeration tank after passing through the main stage sedimentation tank. It is combined with air and sludge containing bacteria for a few hours to break down organic materials. Partially cleaned sewage is transported to another sedimentation tank for further processing, similar to a tricking filter.
The sedimentation tank effluent is cleaned with chlorine at the end of the stage to remove odours and kill dangerous bacteria before being discharged to water communities.
The pressure on industrial wastewater treatment facilities and sewage treatment plants and systems is increasing as pollution concerns worsen. The amount of harmful compounds, heavy metals, and chemicals in water has substantially increased. Purified water is obtained using advanced waste treatment techniques and a superior wastewater system that separates pollutants, absorbs carbons, and filters the water.
For more information, contact Netsol Water.
