Sedimentation

Sedimentation is a fundamental physical process within Barr + Wray’s industrial wastewater treatment systems.

Engineered Sedimentation Systems for Industrial Wastewater

Our systems are designed to manage complex effluent streams across a range of industries, such as manufacturing, pharmaceuticals, petrochemicals, electronics, and food processing.

Designed to remove suspended solids by allowing them to settle under gravity. Typically positioned after preliminary treatment (e.g. screening or grit removal), sedimentation plays a critical role in reducing solids load prior to chemical or biological treatment stages.

In this process, wastewater is directed into a clarifier or settling tank, where flow velocity is significantly reduced. This allows heavier particles – such as grit, sand, metal fines, and process solids – to settle at the base, forming sludge. The clarified water (supernatant) is then discharged from the top for further treatment.

Barr + Wray designs and supplies various types of sedimentation systems, tailored to application-specific requirements:

Primary Clarifiers – for the removal of bulk solids prior to downstream biological treatment
Secondary Clarifiers – used to separate biological sludge following activated sludge or similar processes
Lamella Separators – compact, inclined-plate systems ideal for applications with limited footprint or higher flow rates

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Wastewater Treatment Plant with tanks for purification and filtration of urban waste water, aerial view at night.

To enhance sedimentation efficiency, Barr + Wray integrates chemical dosing systems where required – delivering coagulants and flocculants upstream to bind fine particles into settleable flocs. Factors such as particle size, density, hydraulic loading rate, temperature, and retention time are carefully accounted for in system design.

All sedimentation units are engineered for reliability, ease of sludge removal, and minimal maintenance. Whether integrated into a containerised packaged plant or a site-based installation, our sedimentation solutions are custom-built to handle varying industrial loads and effluent characteristics.

By incorporating efficient sedimentation into the overall treatment process, Barr + Wray ensures optimal solids reduction, improved downstream process performance, and full regulatory compliance for industrial wastewater discharge.