Download - Masterfoods E
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Masterfoods E.E.S. Project
With:
Freddie Stevens-SmithTiffany Renwick
James Farley-Nicholls
Felicity Milton
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THE DESIGN OF
A WATER CLEANINGSYSTEM.
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THE TEAM:
Tiffany Renwick
Freddie Stevens-
Smith
Felicity Milton
James Farley Nicholls
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Project brief:
Raw materials are delivered to site in a
tanker and transferred to a fixed site. To
allow maximum recovery of materials, awater-launched pigging system is used.
This project should design a cleaning and
recycling system for the water.
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Introduction:
Masterfoods
a subsidiary company of Mars
produces a range of goods from pasta sauces to
pet-food
uncooked meats are stored and then processedto produce canned (and pouched) goods at the
Melton Mowbray factory
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the raw waste meat we deal with
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Meat arrives at Melton in varying forms
At present, the water used comes fromRiver Trent
The water is cleaned after use on site,
and then returned to Severn Trent.
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This must be changed for a number
of reasons;
ISO 4001
COST
INCREASED CAPACITY.
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We have split up ourdesign into 3 stages;
Stage 1; Coarseseparation
Coarse separation
Stage 2; Fineseparation
Stage 3; Waterpurification
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REQUIREMENTS:
The water quality after treatment must be: pH - 7.5 to 8.5
Turbidity -
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Stage 1
Coarse separation
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TYPE OFSYSTEM:
Enclosed
Open
MultipleSingle
Continuous
Batch
Brainstorm
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Typeofsystem:
Batch or continuous?
Batch Continuous
+ve Flexibility of
methods
+ve Most space
efficient
+ve Most efficient
way of
treatingH20
+ve no extra outlay,
i.e. holding
tanks
+ve Flexibility of
volume
+ve No stagnation
of water
+ve creates safetybuffer -ve need holdingtanks
+ve easier to
change water/
filters etc.
-ve need to
constantly vary
water usage.
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WAYS TO REMOVE
THE VISIBLEMEAT PARTICLES
IN THE WATER:
Centrifugalseparator
Settling
Gravel/sandfilter
Pressurised filters
Multiplefilters
ScreensCoagulatio
n
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CENTRIFUGATION
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MULTIPLE FILTERS
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Flotation
Initial scoop design
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Cleaning
Methods for
thefilters
Back wash
method
Rotate and
spray
water
Sliding
scraper
across the
filter
Sponge themeat off
Air blast
Rotate and
drop
Brush with
water outlets
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Refinements;
The majority of this was testing, done
during our E.E.S. residential at the
University of Surrey in January.
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Experimenting at Surrey;
The testing model.
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Testing a combination of filters. The filters after a test run.
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Testing at Surrey continued;
Testing the scoop idea.
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Prototypemanufacturing;
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The chosen idea:
These are CAD
drawings of thefilter system
that we decided
upon:
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Stage 2
Fine separation
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AIM; to remove the smaller particles, and as
such make the water more or less colourless,
ready for the final stage of the process.
INITIALIDEAS; activated carbon, gravel andsand filters, distillation, ionisation, ultra filtration
and reverse osmosis.
CHOSEN IDEA; The chosen idea was to use
gravel and sand filters.
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WAYS TO REMOVE
THE VISIBLE
MEAT PARTICLES
IN THE WATER:
Centrifugalseparator
Settling
Gravel/sandfilter
Pressurise
d filters
Multiplefilters
ScreensCoagulatio
n
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Stage 3
Water purification
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