Esmil Multi-Disc Screw Press MDQ

Last year at the end of November on the Avalon Peninsula in Newfoundland and Labrador, Canada (the most eastern part of Northern America) an MDQ-102 C Multi-disc Screw Press Dehydrator was commissioned.

This is the first sludge dewatering co-project which was completed together with our Canadian partners MABAREX. Since then the Multi-disc screw press dehydrator is operating as a main dewatering unit in a containerized wastewater treatment plant, which was manufactured and commissioned by MABAREX. The WWTP has been designed for processing household sewage wastewater from a base camp of an offshore drilling platform.

The nominal capacity of WWTP is 200 m3/day, and the screw dehydrator dewatering capacity is 10-20 m3/day of excess activated sludge, which comes from the MBR reactor with an initial DS concentration of 0.5-1.0 % DS. Cake dry solids concentration after the screw dehydrator is 15-17% which is enough for land disposal requirements according to the project. The high clarity of the filtrate (20-100 ppm of TSS) generated during the dewatering process allows reaching a high capture rate – more than 97.5%.