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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.
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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
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