Sewage Treatment Plant
Every household generates its amount of wastage that needs to be disposed of correctly. With a proper chemical, physical and biological procedure, further problems can be avoided. With this initiative in mind, we at Mohan Group have our very own sewage treatment plant, i.e. STP, in place to take care of the sewage waste generated, thereby processing it for land application.
How do we go about such a process with our projects? It’s simple!
As sewage water is pumped to the STP through pipes and pumps, it goes through the following basic processes:
Primary Treatment: During the first stage of treatment, the solids are separated from the sewage, settling down at the base of the primary settlement tank. Through an anaerobic process, the sludge’s volume is continuously reduced, resulting in a total mass that is marginally reduced in comparison to the original sludge that has entered the system.
Secondary Treatment: Since the liquid that is taken from the primary treatment process mostly contains dissolved and particulate biological matter, it undergoes an aerobic treatment. Here, by the process of introducing indigenous, water-borne aerobic microorganisms and bacteria which digest the pollutants, the liquid is converted into clean water. This water, in most cases, can then be discharged directly into the river.
Tertiary Treatment: At the end of the second stage, the sludge is removed at regular intervals with the help of a tanker, thereby taken for further processing via anaerobic processes to be disposed of or to be re-used. The treated water can then be discharged into a stream, river, bay, lagoon, or wetland, or it can be used for the irrigation of a greenway or park. If it is sufficiently clean, it can also be used for groundwater recharge, car cleaning, or agricultural purposes.