Valmet frontpage

Advanced optimization solution for sludge dewatering

Valmet Sludge Dewatering Optimizer - Valmet SDO

Valmet Sludge Dewatering Optimizer (Valmet SDO) allows wastewater treatment plants to improve the control of its sludge dewatering process. With Valmet SDO the operators can minimize the solids amount in the centrate, while maximizing the solids content in the dry cake. With Valmet SDO a great deal of savings in the polymer usage and energy spending can be obtained, while continuously providing real time data. The transportation costs are lower when the dry cake solids are higher, as well as needing less support fuel at the incineration plant.

Process control with Valmet SDO

Valmet SDO applies inputs from solids and centrifuge measurements to optimize the dewatering process. Valmet Total Solids Measurement offers measurements for feed solids and dry cake percent solids and Valmet Low Solids Measurement gives accurate centrate suspended solids measurements. While the Valmet Dry Solids Measurement provides continuous reliable measurements of dry solids.

With key data, Valmet SDO utilizes a multi-variable model predictive control (MPC) to control polymer dosing and centrifuge torque. The multi-variable MPC is unique to Valmet SDO and is an essential component for centrifuge optimization, as centrifuge control is a non-linear process.

24/7 optimization and centrifuge performance improvement

  • Continuous real-time data
  • Automatic centrifuge operation without operator presence
  • Higher dry cake solids
  • Savings in polymer consumption

Superior solids measurement solutions for wastewater – test the ROI tool calculator


Solids Measurements For Better Wastewater Control

Download Valmet Wastewater Guide to learn how reliable online solids measurements can be used to optimize and improve plant operations and process.