Fmc Technologies, Inc.

Buckman Laboratories International, Inc.

Sergio Arreola, Jr

Kushal Seth

Govert L Kruijtzer

Thomas Krebs

Richard Lusk

Eduardo Candia

Suman Kalyan Hajra

Nate Brandeburg

Paulus Henricus Joannes Verbeek

Mark D Schroen

Clint G Todd

Robert Brian White

Kelly P Ciprick

A system and method are provided for predictive control of brown stock treatment at a pulp mill. Various online sensors generate output signals representative of actual values for respective process characteristics, each of which are directly or indirectly affected by adjustments to corresponding process variables. A controller uses the output signals or associated measurement data to dynamically set target values for the process characteristics based on a predicted impact of control responses for corresponding process variables. The controller further generates control signals to actuators associated with the respective process variables based on detected variations between the respective actual values and target values. Exemplary brown stock washing control systems may optimize various types of brown stock washing configurations, including for example vacuum drum washers, compaction baffle washers, chemiwashers, direct displacement washers and wash presses. Cloud-based analytics and machine learning may also be implemented to improve the control algorithms over time.

Predictive control system and method for brown washing treatment in pulp mills

A wastewater treatment system is disclosed that includes a desanding hydrocyclone, a deoiling hydrocyclone, an electrocoagulation apparatus that is adapted to receive a flow of treated wastewater from the desanding and deoiling hydrocyclones, a floc separator that is adapted to receive a flow of a first effluent from the electrocoagulation apparatus, and an ultrafiltration membrane apparatus that is adapted to receive at least a portion of a flow of a second effluent from the floc separator.

Systems and methods for treating oilfield wastewater

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Pearland, TX, United States of America

Sergio Arreola, Jr