Sewage Treatment Plan

Our college has installed a sewage treatment plant with a capacity of more than 2,00,000 litres/day. The process adopted for this treatment is by Anaerobic Digestion Method. The major parts of this system are as follows:

  • Collection tank

  • Primary Settling tank

  • Aeration Tank

  • Secondary settling tank

  • Zigzag tank

  • Sand filter

  • Activated carbon filter

  • Treated water collection tank

  • Sprinklers use in landscaping/plantations.

Anaerobic digestion utilizes tanks in which anaerobic microorganisms stabilize the organic matter, producing Methane and carbon dioxide. Waste water from bathrooms, mess, hostel, transport are collected in the collection tank. It also consist of solid waste like vegetables and other organic wastes. Its capacity is 2 lakhs litres/day. From here water is sent to primary settling tank.In primary settling tank mainly solid particles are separated and waste water is collected. A floating aerator runs for 12 hours a day to agitate the wastes water. From this tank water is sent to aeration tank. In aeration tank air is circulated to waste water through a rotary fan and 5litres of culture is added. This tank runs for 24 hours a day. Culture growth is enhanced using the waste in the waste water as food, and as result sludge is formed which is settled at the bottom of tank. From aeration tank flow is directed to secondary settling tank where sludge formulation is complete. From the above tank, water is transferred to zigzag tank where impurities of water are settled. From zigzag tank treated waste water is sent to sand filter and then through activated carbon filter. Finally it is collected in a collection water tank. From this location water is transferred to distribution points, mainly for landscaping barren land in our distribution points, mainly for landscaping barren land in our college and for plantations in our college.