FRC Components
Flocculator, Reactor Tanks, Open-Style DAF, Equalization, Continuous Stirred Tank Reactors (CSTRs)
Project Description
A wastewater treatment facility in southern Arkansas required new solids separation equipment as part of major improvements at multiple wastewater treatment plants. The facilities needed a treatment solution capable of removing suspended solids, mitigating seasonal algae impacts, and improving sludge thickening performance while fitting within existing plant structures.
The wastewater treatment process utilizes chemical coagulation and flocculation in dual-chamber Continuous Stirred Tank Reactors (CSTRs), followed by Dissolved Air Flotation (DAF). Suspended solids are chemically precipitated and agglomerated prior to flotation, producing clarified effluent and a concentrated sludge stream suitable for downstream processing.
The treatment system consists of five FRC PWL-160W Dissolved Air Flotation units, integrated flocculation tanks, sludge handling equipment, stainless steel access platforms, and automated PLC-based control systems. The compact system design allowed installation within the existing facilities while providing a combined treatment capacity of 12.5 MGD.
The FRC Solution
PWL-160W Dissolved Air Flotation (DAF) System – Removes suspended solids and algae using dissolved air flotation technology.
Dual-Chamber Coagulation/Flocculation Reactor (CSTR) – Chemically conditions wastewater to form settleable and floatable floc particles.
Whitewater Generation System – Produces air-saturated recycle water for microbubble generation within the DAF.
Rotary Lobe Sludge Pump Package – Transfers floated sludge from the DAF to downstream solids handling processes.
Recycle Pump Skid – Provides pressurized recycle flow required for DAF operation.
Chemical Feed System – Doses coagulant and polymer to improve solids separation performance.
PLC Control Panel & HMI – Automates system operation and provides operator monitoring capabilities.
Stainless Steel Access Catwalks & Platforms – Provides safe access for equipment operation and maintenance.
Parameter | Influent |
Flow (gpm) | 12.5 MGD |
Total TSS (mg/L) | 230 mg/L |
Design Data
