Septic tanks Thanikachalam Vedhathiri
Details of a septic tank 1. Inlet pipe (stoneware/ plastic) 2. Top: Reinforced Concrete 3.Baffle: Reinforced Concrete 4.Scum: Floating matter 5.Sludge 6.Outlet to disperse the water 7. Compartment divider: half brick wall or concrete slab
Fosse Septic Tank 1.Access cover ( cast iron plate or concrete slab) 2.Inlet (Plastic pipe of 10 cm dia) 3.Outlet 4.Sludge is to be removed by the tanker lorry by sucking pump
Septic tank installation The movement of sewage from the inlet pipe to outlet pipe. Cover slab would provide access to suction pump Outlet would drain the water
Septic tank made of fiber glass • Factory made • Inlet pipe can be connected • Two manholes are provided at the top for cleaning • Long life
Plastic septic tank lowered into the ground The inlet and outlet connecti ng pipes are to be construc ted.
Portable septic tank Factory made Can be transported and positioned Doors are provided
Suction machine to suck the settled matter, transport and discharge Centrifugal pump would be used to suck the scum and settled matter Vacuum pump also used Capacity around 6000 litters or more
Septic tank (Single Compartment) Inlet baffle and outlet baffles facilitate the inner movement of the sewage
Disposable pipelines from the outlet The anaerobi cally treated waste water is disposed through pipes with slots
Pre-cast septic tanks (Factory made) Mass producti on helps to install in many residenti al localities .
Constructed septic tank, plumbing vent, effluent absorption and purification Sectional diagram
Suction by the pump operated from the tanker lorry The suction pipe is inserted through top cover of the septic tank.
Details of perforated pipe to disperse the anaerobically treated sewage Gravel filled disposal system Septic tank with two compart ments