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Sludge treatment and disposal accounts for about 50% of the operating costs and 20-30% of the capital costs of wastewater treatment works. The quantity of sludge produced is increasing substantially but fewer disposal routes are available.

Wastewater sludges are conditioned with polymers to enhance the efficiency of dewatering with presses and centrifuges, but the relationship between fluid dynamics and the polymer/sludge interaction has been shown to be critical in mixing and conditioning performance.

BHRSolutions can offer a variety of research, consultancy and physical or computational modelling backed up by years of experience in sludge and slurry treatment and transport.

In two exciting new developments, WWM, our Water and Waste water Mixing consortium, has launched a project to measure sludge rheology characteristics for some of the newer sludges now being processed, and our Process Technology staff have launched a new range of courses in Slurry and Solids Handling - Rheology in Action!

Contact us now to discuss your problem or browse through our Case Studies database for examples of our work.

The Benefits

Recent studies by BHRSolutions have shown that:

• application of a scale-down approach can yield improvements in de-watered sludge solids from 30-34%
• Correct selection of equipment for sludge/polymer blending can satisfy the need for rapid mixing with minimal ragging
• Advice on dosing arrangements and technology can dramatically improve your control of dosing
• Good design of piping systems can reduce sludge and slurry transport costs by large factors