here we find the wet well of the Pandharpur 
2.5MLD Camus SBT type sewage
treatment plant the wet well is preceded
by a coarse screen where plastics and
other detritus is captured and the
sewage then enters the wet well
the wet well is provided with multiple
pumps for working in standby condition
and the pumps are provided with a block
and tackle method for removal of the
pumps for maintenance purposes a ladder is also provided so that operators with
safety gear can enter the wet well for a
routine cleaning purposes
after the wet well the water is pumped into the inlet screen chamber (ISC) of the STP
screen chamber (ISC) is provided with a fine screen which removes the fine
particles like fibres which may have
escaped the core screen after this the
water is transferred via a pipe which
then enters the preliminary
treatment process of the CAMUS-SBT plant
here the water enters the the inlet weir
of the tube settler and goes downwards
and here it rises up through the tube settler pack and the suspended solids in the
sewage is removed at this stage as you
can see nearly clear water is going into
the next tank which is the equalization
tank the equalization tank is provided
with multiple pumps and it transfers the
clarified sewage from the equalization
tank (EQT) to the next stage.  The equalization
tank (EQT) is designed to handle the peak
flows of the system. The pipes here are
connected to the header of the
bio mound one (BM1)where nitrification process
takes place. On BM1 the water is evenly
distributed and collected in the
collection tank one (CT1).
After collecting in (CT1) the
ammonia in the inlet water has converted
to nitrate.  This water is pumped along
with the residual (EQT) water into bio mound two (BM2)
here final polishing takes place.
in BM2 final removal of the nitrogen
by denitrification and residual COD
takes place as it percolates
through BM2 and is collected in
collection tank two (CT2).  The sludge from the
bottom of the tube-settler is pumped into
the solids handling system which is
built on top of the bio mound one (BM1)
process you can see the sludge is
accumulating on top
and once the sludge is dewatered, a red worm culture is used to compost the sewage
solids and convert it into vermicompost
progression of treatment (R-L) the
raw sewage (ISC), clarified sewage water (EQT)
CT1 in the middle,  CT2 (2nd Left) and then the leftmost is drinking water (for comparison
