FM Techie

 AERATION TANK The Aeration tank is at the heart of the treatment system. The bulk of the treatment is provided here, employing microbes/bacteria for the process.  The main function of the Aeration tank is to maintain a high population level of microbes. This mixture is called MLSS (Mixed Liquor Suspended Solids). The mixed liquor is passed on to the clarifier tank, where the microbes are made to settle at the bottom.  The settled microbes are recycled back to the aeration tank. Thus they are retained for a long period within the system. 1 The inlet pipe brings sewage from the raw sewage lift pump  2 The baffle wall does not let the incoming sewage and sludge go across the tank toward the outlet pipe (6). The wall forces the mix toward the bottom of the tank;  3 The tank is always filled till this level 4 The Outlet Launder collects the sewage and delivers it to the outlet pipe (6). 5 The net prevents entry of debris in the outlet pipe (6).  6 The outlet pi...

 CONSERVATOR:  This is mounted on top of the oil tank. This should have oil two third of its volume and the remaining filled with air. The conservator is used to accommodate the expanded volume of the transformer oil when ever the oil gets heated up owing to loading of the transformer. Also when the oil cools down, the oil from the conservator will flow into the transformer tank. The oil level in the conservator varies depending upon the temperature of the oil on various load conditions. Whenever the oil level reduces in the conservator, atmospheric air from outside will flow through the breather into the conservator and during this process the silica gel will absorb the moisture from the atmospheric air. When the oil level in the conservator rises, the air from the conservator will go to atmosphere through the breather. The breather will have oil to arrest the suspended impurities from the atmospheric air. BREATHER: The breather is connected through a small pipe line to the c...