Vexamus Water has introduced a highly efficient rotary drum thickener, which has a proven track record for sludge thickening and dewatering.

The Siljan RotoMaster, which is now available exclusively in the UK from Vexamus Water, has been successfully used in a wide variety of sludge dewatering applications. Typically, it is employed prior to a digester, where it can significantly reduce the energy required to heat the aqueous sludge, whilst at the same time increase gas yields.

To overcome the problem of determining the dry solids concentration of thickened sludge, Vexamus Water can also provide the Siljan PolySave. This polymer-dosing unit automatically monitors the filtrate from the Siljan RotoMaster and controls the consumption of the polymer, saving on the expensive material and operator time.

Available in six different models with varying sludge treatment capabilities, the RotoMaster can be supplied as a package system, complete with the PolySave unit, flocculation mixer/ reactor, thickened sludge hopper, sludge pumps, control panel and supporting steelwork.