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Filtration
EWS (UK) Ltd offer a wide
range of filtration equipment including:-
Cartridge
& Bag Filters
EWS (UK) Ltd supply a wide variety of cartridge and bag
filters to suit all kinds of applications. Housings are
available in uPVC, polypropylene and stainless steel and
media are available for filtering down to 0.2 µm,
with options for surface and depth filtration. As well as
particulate removal we also offer activated carbon filter
cartridges, primarily for chlorine removal.
Activated
Carbon
EWS (UK) Ltd offer a variety of activated carbon products
to suit varying applications. Charcoal and coconut based
carbons are available for chlorine and organics removal
and Brimac (bone charcoal) is also available for FI removal
and more specialist applications.
Smaller standard plant
sizes utilise multiport valve technology for control of
service and backwashing functions with larger filters using
individual diaphragm valves for plant operation. We also
supply carbon in exchange cylinders for use on smaller systems.
Iron
& Manganese Removal
Some water supplies, boreholes for example, regularly contain
levels of iron and manganese in excess of WRC recommended
drinking levels. High levels of iron and manganese present
in the water might also lead to process operational difficulties.
On these types of supplies it therefore often necessary
to remove iron and manganese to acceptable levels.
EWS (UK) Ltd supply filters
incorporating a number of different media to fit the application
along with ancillary equipment which is often required to
maintain media condition such as sodium hypochlorite dosing
equipment and chlorine or redox control instruments for
control of dosing.
Smaller standard plant
sizes utilise multiport valve technology for control of
service and backwashing functions with larger filters using
individual diaphragm valves for plant operation. For systems
incorporating large numbers of filters and ancillary dosing
equipment PLC operated control systems are available.
Multi-Media
Layers of sand and anthracite are typically employed in
multi-media filters to remove particulates present in the
water supply. Often multi-media filters are employed as
pre-treatment to other water treatment equipment such as
reverse osmosis plant on poor town’s water supplies
to prevent fouling.
EWS (UK) Ltd offer a range
of multi-media filters with smaller, standard plant sizes
utilising multiport valve technology for control of service
and backwashing functions. Larger filters use individual
diaphragm valves for control of plant function. On more
specialist applications such as polishing of effluent, bespoke
designs are available incorporating the facility for in
situ cleaning of the filter media.
Membrane
There are a wide range of membrane filtration options available
from EWS (UK) Ltd, including reverse osmosis (RO), microfiltration
(MF), ultrafiltration (UF) and nanofiltration (NF). Various
membrane materials are also available including man-made
polymers and ceramic membranes.
Whilst we offer
a comprehensive range of standard RO plant, MF, UF and NF
plant is typically more specialised, with bespoke plants
built to suit client specific requirements.
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