– Piping system:
(1) Main influent pipe of diameter 1 inch with a main control
ball valve.
(2) Delivery pipe of diameter 1 inch with a main control ball
valve from the contact tank to the final sedimentation
tank.
(3) Effluent pipe from final sedimentation tank.
(4) Delivery pipe of diameter 1 inch for return sludge from
the final sedimentation tank to stabilization tank.
(5) Delivery pipe of diameter 1 inch with a main control ball
valve from the stabilization tank to the thickener tank.
(6) Drain pipe of diameter 1 inch from supernatant zone in
thickener.