Installation of a Lamella Clarifier to enhance an existing Groundhog separator at a livestock auction
To help an existing customer keep within the suspended solids discharge consents
Installation of Lamella Clarifier
The livestock auction at Market Drayton had on occasions breached the suspended solids discharge consent levels that the local water company had set. This was in part due to the changes in bedding regimes for livestock over the past few years and an increase in volumes of effluent to deal with.
To deal with the gross solids in the effluent a Groundhog Separator was installed in 2007. Although the Separator performs excellently that are not designed to deal with fine particles. The existing below ground settlement tanks were used to settle out the finer particles after separation but before discharge to sewer of the effluent.
Due to the volumes now being treated and a lot more finer particles in the separated effluent there was not enough settlement time in the tanks causing a lot more suspended solids to enter the sewer system.
Pollution Control recommended installation of a Lamella Clarifier to settle out the finer particles once the effluent has passed through the separator. This technology was chosen as the settling area in this type of system is reduced by 90% when compared to settlement tanks saving substantial civil cost and space required to install.
The installation was completed in 2016 and has not only allowed the Auction to now keep well below their suspended solids discharge consent levels but also a substantial reduction in the COD levels where further savings on their utility bill were made.
We also installed a Lamella Clarifier in 2008 at Penrith auction mart (who also has had a Groundhog Separator since 1994). This enabled them to achieve considerable cost reductions in their effluent charges.