Written by Tom Welch, July 7, 2015
Although primarily thought of as a technology for dewatering in wastewater plants, Schwing Bioset’s screw press has also been successfully applied in water plants. We recently completed an installation of a screw press at the Davidson Water (ferric sludge) water treatment plant.
Take a look at part one of a two part article on the successful application of Schwing Bioset’s screw press technology on ferric and alum sludge generated by water treatment plants.
Davidson Water, Inc. is located in Lexington, North Carolina, and is a large membership cooperative with a plant capacity of 35 million gallons per day. Upon successful pilot trials, Davidson Water selected the Schwing Bioset FSP 602 machine for dewatering its full scale operations. They are now running at about 85% throughput and obtaining 27-30% solids, with greater than 95% capture rate and less than 20 pounds of active polymer per ton. Recent operating conditions have achieved dry solids contents as high as 38%!
Davidson Water’s current operations are surpassing the performance demonstrated during on-site pilot trials that were completed almost two years ago and are exceeding their expectations. Take a look at the photos below of the Davidson Water installation, which show the simple set-up and exceptional performance.
Stay tuned for Part Two of ‘We Dewater Water Plants Too’ on dewatering the alum sludge for a water treatment plant in South Carolina.
To see video of the Screw Press in action or learn more about it, contact a Schwing Bioset Regional Sales Manager, call 715.247.3433, email firstname.lastname@example.org, and/or visit our website here: SBI Screw Presses.