Compact wastewater pretreatment solution for Bouter Group Tapas - Reference

Project’s context & challenges

Bouter Group Tapas, part of the A-ware Food Group, produces a wide range of fresh tapas products and convenience snacks for the retail and foodservice markets. The production process generates industrial wastewater containing high concentrations of fats, oils, grease (FOG), suspended solids, and organic pollution.

To ensure reliable discharge to the municipal sewer system, Bouter Group Tapas required a robust pretreatment solution capable of handling strongly fluctuating wastewater characteristics. At the same time, available space at the production site was limited, making a compact, modular solution essential. The installation also needed to be implemented with minimal disruption to daily operations and within a short project timeline.

Key figures

125 m³/day

Average flow

160 m³/day

Peak flow

Up to 5,440 mg/L

Influent COD

Up to 1,500 mg/L

Oil & Grease

Solution

To address these challenges, Nijhuis Saur Industries supplied a compact, skid-mounted pretreatment system based on mechanical screening, chemical conditioning, and Dissolved Air Flotation (DAF) technology.

The solution was delivered as a fully integrated plug-and-play IPF010 skid, significantly reducing civil works, installation time, and commissioning efforts. Designed to cope with fluctuating hydraulic and pollution loads, the system provides stable and reliable treatment performance while ensuring operational flexibility for future production growth.

Scope of supply

Mechanical pre-filtration system (static curved screen)
Complete chemical dosing installation
PFR010 flocculation unit
IPF010E Dissolved Air Flotation (DAF) unit
Fully integrated flotation system assembled on a 20-foot skid
PLC/HMI control system including integration with client systems
Engineering, documentation, transport, installation supervision, commissioning and start-up

Applied solutions

Mechanical pre-treatment

Removal of coarse solids using a static curved screen (NZB1200), protecting downstream treatment equipment and improving flotation efficiency.

Chemical conditioning

Inline flocculation process with pH correction, coagulant dosing, and flocculant dosing to optimize particle aggregation and separation performance.

Dissolved Air Flotation (DAF)

High-efficiency flotation using the IPF010E DAF system with lamella technology for effective removal of fats, oils, grease, and suspended solids.

Process automation

Integrated PLC/HMI control system, automatic sludge discharge, and process monitoring to ensure reliable and efficient operation.

Customer benefits

Effective pollutant removal

Efficient reduction of Oil & Grease, Total Suspended Solids (TSS), and COD, enabling reliable compliance with discharge requirements.

Compact footprint

The complete pretreatment system is assembled on a single skid, making it ideal for sites with limited space availability.

Fast implementation

The plug-and-play design minimizes installation time, commissioning efforts, and operational disruption.

Operational reliability

Designed to accommodate fluctuating wastewater loads while maintaining stable treatment performance.

Future flexibility

The modular configuration supports future capacity increases and process expansions.

Reduced downstream impact

Lower pollutant loads decrease pressure on downstream treatment facilities and sewer infrastructure.

"The compact skid design allowed us to integrate the installation seamlessly into our existing production environment. We were particularly impressed by the performance of the screening system and the DAF unit, which provides effective removal of fats and solids while maintaining a small footprint. "

Operations Manager, Bouter Group Tapas