STM-Aerotor™

Product catalog summary

Overview: The STM-Aerotor™ is an advanced biological process system that integrates fixed film and activated sludge technologies for effective wastewater treatment. It is designed to enhance biological nutrient removal while minimizing operational complexities.

Specifications: The system utilizes a unique rotor design that captures atmospheric air, which is then released as coarse bubble aeration. The aeration process is controlled by a variable speed drive, eliminating the need for blowers, aeration piping, or diffusers. The system also features a peripheral mixing paddle to ensure thorough mixing.

Fixed Film Component: The STM-Aerotor™ provides a large surface area for fixed film growth, improving sludge settling characteristics and increasing the effective sludge age. This component is responsive to increased food sources or shock loads, preventing discharge violations.

Biological Nutrient Removal: The system can develop anoxic and/or anaerobic zones within the same basin, achieving total nitrogen levels below 10 mg/L and total phosphorus below 2 mg/L. Enhanced removal can be achieved with additional selector zones.

Design Features: The system includes a low-HP drive unit, a hardened steel drive chain, a steel structural frame, and a steel center shaft. The media discs are designed to maximize surface area and optimize aeration efficiency.

Applications: Suitable for treating animal waste, brewery waste, food processing waste, landfill leachate, municipal wastewater, petrochemical waste, pulp and paper waste, and winery waste.

Benefits: The STM-Aerotor™ offers advanced biological nutrient removal, improved sludge quality, low capital and energy costs, minimal operator attention, and no noise or odor issues. It is compact, simple to construct, and provides stable process performance.

Contact Information: WesTech Engineering, Inc., Salt Lake City, Utah, USA. Tel: 801.265.1000, Email: [email protected], Website: westech-inc.com

Catalog excerpts

Advanced Biological Process WesTech Quality System

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Integrated Fixed Film and Activated Sludge STM-Aerotor™ The STM-Aerotor™ biological nutrient removal system uses integrated fixed film and activated sludge technology as part of a process that provides biological nutrient removal for municipal and industrial wastewater treatment. Media Low-HP Drive Unit The simple drive unit is easily accessible and is controlled by a VFD. Drive lubrication is the only routine maintenance item in the process. The special STM-Aerotor™ media discs maximize the surface area for the fixed film, while optimizing the captured air volume and release depth for efficient...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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