To help Yorkshire Water meet tighter discharge consents at Balby WwTW near Doncaster, Vexamus Water has installed the UK's first tertiary sand filter with a 7m2 filter area.

To help Yorkshire Water meet tighter discharge consents at Balby WWTW near Doncaster, Vexamus Water has installed the UK's first tertiary sand filter with a 7m2 filter area. Offering the same continuous filter process as smaller units, but with a significantly reduced footprint of the filter package, the DS7000 is part of the renowned DynaSand range, which is distributed exclusively in the UK by Vexamus Water. Serving an equivalent population of 20,000, the Balby WwTW consent was reduced from 30 mg/l to 20 mg/l of suspended solids (new consent: 10:20 BOD:SS).

As well as reducing washwater requirements, DynaSand also improves the process output and greatly simplifies the system.

Handling high suspended solids without the need for pre-treatment, this tertiary sand filter benefits from lower capital costs and eliminates the need for washwater storage, collection or backwash pumps.