Case Study - Brewery

The Problem

This brewer is one of only four main industrial sites in their area. The local water authority reached their own limit at the local sewerage works and were unable to expand this capacity any further. Therefore, despite the fact that several domestic building developments are going on in the area, the water authority is increasingly placing tougher restrictions on the industrial sites effluent discharges.

The Solution

Following a visit from B & V, the brewery was quickly able to install a mobile effluent treatment plant. This has a capability of treating 3cum³ per hour of effluent. This sites discharge limit is only 40 cubic metres per day, so the system was more than adequate to cope with treating the sites effluent during the working day. Treatment chemicals for the process were stored in the sites general cleaning chemicals and pumped to the system, so that there are no chemical tanks along the yard. The resulting sludge from the system was pumped into a silo, which collects solids from other parts of the brewing process and is collected via the sites waste management company.

The Result

Overall, the effluent plant assisted in reducing the Chemical Oxygen Demand (COD) discharge by 40%, and the Suspended Solids (SS) by over 90%. Both of these discharge factors contributed to the sites overall effluent charges under the local water authority. The system also helped to ensure that the site remained within its pH boundaries of 6—10.

The Future

The next step for site is to further reduce to dissolved COD, associated with the sugars and other dissolved solids, which cannot be taken out by the physical/chemical process currently supplied.

For more information on B & V Effluent Services, please contact our offices on 0844 372 7344 or e-mail us on enquiries@bvwater.co.uk