Case Study
Sewage Treatment - UK sewage
treatment facility treating a mixture of domestic
and trade effluent from the surrounding areas. The industry
in the area is varied range and includes chemical and
food processors, and as a result the incoming effluent
can be varied.
The sewage treatment facility historically had a problem
with the accumulation of grease and fats in the primary
settlement tanks. The grease and fat as such did not
present an operating problem, but when the fat traps
were emptied an excessive volume of water was sent to
the sludge tanks before being sent to the digester.
The flow into the works averaged at 25 megalitres per
day.
Trials using BioTreat WT100 to treat one of the settlement
tanks was commenced. After a 4 week trial it was apparent
that the bacteria in BioTreat WT100 had a beneficial
effect on the grease and fat. The trial was scaled up
to treat the whole of the incoming effluent. Prior to
dosing the bacteria, the activity was increased using
a bioreactor. The bioreactor used the raw sewage as
the food source and grew the bacteria required based
on the effluent to be treated. A 6 hour growth period
was required before dispensing the activated bacteria
into the flow over the following 16 hours. The results
of using BioTreat WT100 have been biodegraded grease
that is easily managed and disposed off using the conventional
methods.
The owner of the sewage treatment facility subsequently
installed a similar bioreactor facility at a second
sewage treatment works.
Additional Information
For additional information please contact BioTreat
info@biotreat.co.uk
.
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