A prestressed concrete tank is the ideal solution for dealing with the highly corrosive environment involved in wastewater treatment. The quality and permanence of a CROM tank lends itself to consistent service on behalf of the utilities, minimizing the difficulties associated with shutting down a wastewater plant for maintenance or repairs. CROM has been building wastewater tanks since the mid-1950s, and many of these structures remain in operation today.
The following is a list of wastewater tanks built by CROM:
- Aeration Tanks
- Aerobic and Anaerobic Digesters
- Modified Egg-Shaped Digesters
- Elongated Prestressed Concrete Tanks
- Sequencing Batch Reactors (SBRs)
- Package Treatment Tanks
- Reclaimed Water Storage
- Flow Equalization Tanks
Aerobic and Anaerobic Digesters
Modified Egg-Shaped Style Digesters
Elongated Prestressed Concrete Tanks
- CROM has built more than 35 tanks ranging in capacity from 820,000 to 14,100,000 gallons
- Single and multiple trains available
- Include a steel shell diaphragm, shotcrete walls, linear and circumferential prestressing
Sequencing Batch Reactors (SBRs)
Crom works closely with the equipment suppliers to locate and embed mooring cable anchors and shotcrete bosses for airlines and mooring arms. Accommodations for the influent manifold, decanter manifold and waste sludge manifold are also provided. A platform or circular exterior walkway integral with the wall is a common add on.
Package Treatment Tanks
In the mid-1990s, CROM developed a design which included an exterior prestressed concrete tank with steel channels embedded in the tank floor to accommodate steel partitions by others. The combination of the superior CROM wall with steel partition walls proved to be the most long-term, economic product design for package treatment plants.
These tanks are often found at the wastewater facility, but because of their attractive appearance and ease of adding architectural embellishments, CROM tanks can be located in highly visible areas such as golf courses where the reuse water is used for irrigation.
Flow Equalization Tanks
CROM flow equalization tanks are an ideal solution for addressing peak flow conditions. The attractive appearance of CROM tanks makes them suitable for construction anywhere in the collection system.