Equalization Tanks Engineered for Stable Wastewater Flow

Tarsco Bolted Equalization Tanks, assembled in the field, buffer variable influent between wastewater treatment stages, and use factory-applied, thermally cured fusion-bonded epoxy Enduro Coat to protect interior surfaces in long-term immersion service.

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How Equalization Tanks Balance Flow for Reliable Treatment

Diurnal peaks and intermittent slug loads can upset downstream biological and mechanical processes. Tarsco Bolted Equalization tanks serve as buffers between stages to absorb those flow changes and also to stabilize pH, temperature, and influent chemistry. This buffering protects downstream processes such as mixing, flocculation, sedimentation, and clarification. As a result, treatment trains can run under consistent hydraulic loading.

Bolted, shop-fabricated steel construction is most frequently chosen for equalization work as both municipal and industrial sites require quick turnaround. Field assembly typically requires no on-site welding, reducing hot-work risk and weather delays. The modular design from Tarsco permits diameters and heights to be scaled to fit site hydraulics and headloss limits. Inlet/outlet configurations can be engineered to match pump rates, level control, and site hydraulics.

Tarsco produces cylindrical carbon steel equalizing tanks with a factory-applied, thermally cured Enduro Coat fusion-bonded epoxy that is suitable for full-time immersion service. These installations accommodate municipal plants and industrial treatment projects that are built to project requirements, including designed to AWWA D103 standards where specified by the project. The wastewater equalization tanks are used as part of the complete process envelope. Accessories, nozzles, mixer mounts, and instrumentation penetrations are located to match process and maintenance requirements.

Core Advantages of Our Equalization Tanks

Tarsco’s EQ Tanks, assembled with field-bolted steel construction, are engineered for dependable flow and load buffering and stable downstream treatment performance. Our thermally cured immersion-grade fusion-bonded epoxy Enduro Coat supports efficient erection and long-term corrosion protection.

Flow and Load Buffering

The equalization tanks for wastewater storage dampen diurnal and peak flows so downstream units receive steady hydraulic and organic loading. This buffering reduces stress on mixing, flocculation, and sedimentation stages and helps the wastewater equalization tank maintain reliable process conditions.

Corrosion Protection

Tarsco applies factory-applied, thermally cured fusion-bonded epoxy Enduro Coat to all interior carbon steel surfaces for constant immersion wastewater service. The coating system is engineered to withstand long-term immersion and a wide range of wastewater chemistries, supporting corrosion resistance and predictable maintenance intervals for each eq tank.

Rapid Field Erection

Shop-fabricated panels allow Tarsco crews to assemble an equalization tank in the field without on-site welding. This method compresses construction schedules compared to field-welded or cast-in-place concrete and improves safety and quality control.

Process Integration

Tarsco builds mounts and penetrations, so the equalizer tank wastewater treatment aligns with mixers, aeration grids, baffles, and instrumentation specified by the project. Nozzle locations, access platforms, and level monitoring support safe operation across equalization tanks.

Scalable and Serviceable

Modular diameters and heights let Tarsco tailor the eq tanks to site hydraulics today and to capacity growth later. Straightforward inspection routes and replaceable components help owners keep the equalization tanks for wastewater storage needs operating with minimal disruption.

Code-Aware Design

Tarsco designs each equalizing tank to project requirements and is designed to AWWA D103 standards, where specified by the project. Recent proof points include the Spencer, IA installation at 334,900 gallons nominal capacity (Ø 61.54 ft × 15 ft) with 312,700 gallons usable volume, and the Russellville, AR pretreatment upgrade at 864,893 gallons nominal capacity (Ø 89.13 ft × 18.53 ft).

Proven Equalization Tank Projects

Tarsco teams have delivered bolted equalization tanks that provide steady buffering and reliable performance between wastewater treatment stages. Review our project outcomes and documented schedules.

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