Normal shut-down procedure
Total Shut-Down
It will be advantageous to carry-out the maintenance work of effluent treatment
plant in a phased manner during the lean period since it will avoid the total shut
down.
Before restarting the units under maintenance , all the precautions taken during
the start-up should be observed.
Operate the blowers in the aeration tank at least 24 hours before taking the wastewater
into effluent treatment plant to aerobic condition. If necessary cow dung may have
to be added to ensure enough microbial populations in the system.
Power Failure
If here is a power failure at the treatment site following precautions should be
taken.
It is strongly recommended that alternate power sources like DG sets are installed
to Purchased provide power to blowers of aeration tank during power failures.
After power restoration , the content of the aeration tank should be will aerated
only after the dissolved oxygen level is found to be satisfactory , wastewater be
allowed to introduce into it.
C.E.T.P. Treatment Process Chart
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