WESSEX Water has increased sludge handling capacity at its Trowbridge sewage treatment works by reducing downtime of capital assets following the installation of a new S:Max sludge screen from CDEnviro.
As part of CDEnviro’s demonstration programme launched last year, the water company allowed the installation of the S:Max at the site to establish how the system would work as part of its sludge processing strategy.
Before the installation of the CDEnviro system, operational difficulties with the existing sludge reception and screening plant meant that sludge imports were often restricted, leading to increased transport costs and general inefficiencies with tanker drivers travelling to sites further away.
The S:Max screen accepts waste from two streams: the imported waste from tankers collected from the surrounding areas, and indigenous sludges generated by the sewage treatment works. Once screened, the sludge will, following a future capital scheme, go through anaerobic digesters under a controlled process to capture methane for energy production.
Earlier this year the company unveiled a portable sludge screen that can be transported by a standard six-yard skip vehicle. The MSU:10 was designed for liquid and solid separation from a variety of applications such as screenings and grit removal from sludge, pre-screening removal of larger debris prior to further processing, and as a temporary import sludge screen.
At the launch, general manager Matt Bunting said: “The introduction of the MSU:10 is an important development milestone for the CDEnviro R&D team. Our customers require innovative sludge handling solutions and reduced operating costs without compromising on functionality and this is what we have delivered with the MSU:10.”
The design of the MSU:10 into a single complete unit removes the need for expensive crane lifts and associated risk assessments and method statements , reduces transportation costs and ensures quick set-up on location.