Liquid Feed System uses programmable logic microcontroller.

Press Release Summary:

Semblex® Polymax Series L liquid polymer blending unit introduces and activates polymer solution using 2-stage tapered mixing system. Employing thin film blending technology, it features clear, in-line mixing elements for visual confirmation of mixing/blending process. System includes pre- and post- auto-flush cycles to eliminate clogging, built-in LCD operator interface screen, and on-board diagnostics.

Original Press Release:

Severn Trent Services Introduces Enhanced Liquid Polymer Blending Unit

New Semblex(R) system features programmable logic micro-controller

Fort Washington, Pa. -August 18, 2003 - Polymers have long been used in the treatment of water and wastewater to attract, adsorb and ultimately remove suspended particles. Since polymer handling is critical to the process, the polymers must be carefully mixed and fed into the treatment process. Now, Severn Trent Services introduces the industry's most advanced liquid polymer blending unit, enhanced with a programmable logic micro-controller, the Semblex(R) Polymax Series L.

The compact Semblex system introduces and activates the polymer solution using a two-stage tapered mixing system, avoiding damage that can be caused by high-energy, high-sheer devices. Employing a thin film blending technology, the Semblex system also features clear, in-line mixing elements to provide visual confirmation of the mixing/blending process.

Equipped with a programmable logic micro-controller, the new system features standard pre- and post- auto-flush cycles; a built in LCD operator interface screen; and on-board diagnostics. The standard auto-flush eliminates clogging and reduces maintenance costs. A built-in LCD screen and on-board diagnostics assist with set-up, maintenance, and troubleshooting the system. Additional features such as selectable latching or auto-reset alarms and adjustable time delays on alarm outputs enable the Semblex Polymax Series L to be used in a variety of conditions.

Severn Trent has designed this state-of-the-art liquid feed system to reduce system costs and enhance operation. "Polymers can represent a significant part of a treatment plant's chemical cost," stated Greg Kriebel, Semblex Product Manager, Severn Trent Services. "Properly mixed and activated polymers can improve process performance and reduce chemical costs."

About Severn Trent Services
Severn Trent Services (, based in Fort Washington, Pa., is a leading supplier of water and wastewater treatment solutions. The company's broad range of products and services is concentrated around disinfection and filtration technologies, pipeline analysis, rehabilitation and repair services, contract operating services, and state-of-the-art residential metering products. The company is part of the Severn Trent Group (London: SVT.L), Birmingham, England, an international environmental services leader. Severn Trent is a FTSE 100 company.

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