Concentric Circle Wastewater Treatment System

Direct-purchase treatment equipment and plant systems for customers planning long-term infrastructure ownership

When ownership is the right long-term fit for a project, AUC Group offers direct-purchase wastewater treatment equipment and plant systems. For new plants, expansions, upgrades, replacements, reuse applications, and long-term capacity planning, AUC helps customers match equipment decisions to practical demands.

Direct purchase is often a fit for municipalities, utilities, developers, and private operators with available capital funding, long-term infrastructure ownership goals, or procurement requirements that favor direct ownership over service-based delivery models.

Direct purchase makes sense when funding, scope, capacity needs, and ownership preferences already line up. Other projects may be better suited for AUC’s wholesale delivery approach, where AUC develops, owns, operates, and maintains treatment infrastructure through long-term service agreements that reduce upfront capital requirements and operational burden.

AUC also offers temporary and bypass treatment systems and timeline-based options through its Lease Plant Program for projects requiring interim capacity, phased development support, or bypass treatment during maintenance and upgrades.

Concentric Circle Wastewater Treatment System
Package Wastewater Treatment System

Wastewater Treatment Systems and Equipment

AUC provides wastewater treatment systems and equipment for customers that need permanent plant capacity, phased expansion, treatment upgrades, or replacement infrastructure. The company’s wastewater treatment systems include:

  • Conventional activated sludge package plants
  • Modular and concentric circle wastewater treatment systems
  • Effluent reuse treatment configurations
  • Supporting treatment components

Conventional activated sludge (CAS) wastewater treatment systems remain a practical fit for developments, utilities, and facilities that need proven biological treatment in a package plant configuration. Modular wastewater treatment systems can support phased wastewater capacity needs for projects up to 1 million GPD, including phased growth where capacity needs to come online in increments.

Concentric circle wastewater treatment systems can support flows up to 2 million GPD while reducing site footprint with a compact, integrated layout.

When permit or reuse goals require added treatment, AUC wastewater equipment can incorporate options for water reuse, biological nutrient removal, phosphorus control, filtration, disinfection, and sludge handling.

AUC can support phosphorus limits down to 0.15 ppm with filters and/or biological nutrient removal (BNR), depending on project configuration and regulatory requirements. Disinfection options can include chlorine or UV, while sludge dewatering can help customers manage residuals more efficiently.

Supporting Wastewater Treatment Equipment

Plant Upgrades and Replacement Equipment

Some projects require targeted plant upgrades or replacement equipment rather than complete treatment plant replacement. AUC can support clarifier replacements, larger clarifier systems, and plant upgrades, as well as consolidation projects, where multiple smaller units can be replaced or simplified through a more efficient treatment configuration.

AUC can support plant upgrades, clarification improvements, replacement equipment, and treatment optimization projects. For customers comparing modular package plants and concentric circle designs, AUC can help evaluate which configuration best fits the available site, flow range, expansion plan, and operating goal.

Supporting Treatment Equipment

Water and wastewater treatment projects often require equipment to support the primary treatment system. AUC can provide or coordinate supporting treatment equipment, including fine screens, headworks, and splitter boxes, blowers, filters, chlorine or UV disinfection systems, sludge dewatering equipment, equalization tanks, reuse tanks, SCADA, and remote monitoring systems.

These components can help a project meet treatment limits, improve operator visibility, manage peak flows, support reuse, or prepare a plant for future expansion. AUC evaluates supporting equipment as part of the broader project approach, so individual components fit the treatment objective rather than simply adding complexity.

When projects require specialized treatment processes such as membrane bioreactor (MBR) or sequencing batch reactor (SBR) systems, AUC coordinates equipment procurement through trusted manufacturing partners and integrates those components into the overall treatment approach.

Direct Purchase or Another Delivery Model?

Direct purchase is often the best fit for customers with available capital funding, defined long-term infrastructure needs, and a preference for direct ownership and operational control.

Other projects may be better suited for AUC’s wholesale delivery approach, where AUC retains ownership and operational responsibility for treatment infrastructure through long-term service agreements.

For projects requiring temporary treatment, phased infrastructure deployment, bypass capacity, or interim plant support, AUC also offers temporary treatment systems and leasing options through its Lease Plant Program.

Supporting Wastewater Treatment Equipment

Contact AUC to compare direct-purchase equipment options, wholesale delivery approaches, and lease-based treatment solutions for your project.

FAQ

What types of wastewater treatment equipment does AUC provide?

AUC provides package wastewater treatment plants, modular wastewater treatment systems, concentric circle systems, clarifier replacements, treatment upgrades, disinfection, sludge handling, reuse-related equipment, and supporting components.

Does AUC sell MBR and SBR equipment?

When a project requires MBR or SBR configurations, AUC coordinates purchases from trusted suppliers and can help integrate the components into the overall project approach.

Can AUC help compare direct purchase, wholesale, and lease-based delivery models?

Yes. AUC helps customers evaluate direct-purchase ownership, wholesale delivery approaches, temporary treatment systems, and lease-based infrastructure solutions based on project timelines, capital availability, operational preferences, and long-term infrastructure goals.