• 23/4, Talikhola
    Barasat, Kolkata
  • +91-9051825548

Sewage treatment Plant

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Sewage treatment is the best contaminants removal process from municipal wastewater mingled with household sewage including industrial wastewater. Through the sewage treatment, physical, chemical and biological processes are to processed to remove contaminants from wastewater and the wastewater turns into safe wafer which is good for environment. Sewage treated water comes to be a name of Slurry water which is to be under gone further treatment before apply to the land. It is very common that the system of sewage carries industrial effluent to the sewage plant and reduces the pollutant load. The water through the sewage system travels to the treatment plants with the pipe and the water stores itself by gravity as well as pumps.

How does sewage treatment run?

Sewage treatment is done with two common ways :

  1. Anaerobic Bacteria– Sewage treatment comes to be active with removal of anaerobic bacteria without touch of air mingled with oxygen. This process works to reduce organic matter to methane, sulphaide and carbon dioxide. The system is used for wastewater treatment especially organic waste as it works for mass reduction of unnecessary material with a large extent. The methane produced in large scale from municipal sludge comes to be examined in the case of home or industry. With the anaerobic process, the amount of methane from the septic tank serves near about 100 people. The effluent produced from this process becomes pollutants with bad smell as it is added with hydrogen sulphide.  The sewage water comes completely good through the Aerobic layer in the soil.
  2. Aerobic Sewage Treatment – With Aerobic Sewage Treatment, aerobic bacteria comes to digest pollutants. For the aerobic bacterial system, you need to provide air in which bacteria can breathe easily. On the sewage treatment plant, air is all the time supplied to the Biozone through direct surface. Basically, aerobic conditions bring aerobic bacterial in need of its establishment. These become a form of oxidation and digestion of organic matter along with pollutants such as carbon, water and nitrogen and in this way, water comes fresh eliminating odour and pollution.

Conventional sewage treatment is to be processed in another ways. Take a look at below details.

  • Primary treatment – Primary treatment is commonly used Anerobic. Firstly, the solids are removed from sewage and the solids are put on a primary settlement tank. Then the sludge is to be reduced slowly by anaerobic process with the result reducing a lot when the original volume enters into the system.
  • Secondary Treatment – Secondary treatment is also common treatment. The liquid from primary system containing dissolve particles converted into clean water with the help of indigenous aerobic organisms and bacteria. The effluent is totally clean for direct discharge in the rivers.
  • Tertiary Treatment – Most of the time, secondary treatment is not active for effluent resulting. The reason is that the water does come to be fresh from rare plants and animals and even the water is polluted by another septic tank. Then a high standard treatment is to be done with new discharge. The system is very useful either by phosphorous or ammoniacal nitrogen and even both discharged and the tertiary treatment comes to this new process. Even nitrogen gas is to be used in this effective process.

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