- Email: [email protected]
Optimisation of filter backwashing
Optimisation
of filter backwashing
As part of a modernization
completely new actuated valve
Contact: Rotork Controls Ltd,
Fax: i-44 1225 333467;
programme undertaken by
packages, plus installation by its
Brassmill Lane, Bath, BAl 31% UK.
E-mall: [email protected];
South West Water, UK, Rotork
retrofit department.
Tel: +44 1225 733200;
Website: www.rotork.com
Controls Ltd’s electric valve
On a daily basis a minimum
actuators have been used to
of eight of the filters are
improve the efficiency of the
backwashed in sequence, with
backwashing processes of
the actuators programmed to
existing sand filters.
operate at a graduated speed
Rotork AQ electric actuators
profile to shut off the water
have been installed on new
supply, allow in the reverse wash
or existing backwashing valves
water and bring the filter back
in order to precisely control
on-line. The system’s graduated valve
their opening and closing
opening and closing profiles have
speeds. South West Water’s process partner Purac Ltd is the main
been precisely designed to ensure that the risk of hydraulic
contractor for the project at
shocks in the filters is
eight filtration plants in Devon,
significantly reduced.The
UK. One of the sites is at
is designed to work on a ‘stand-
plant
Tottiford Reservoir, where two
alone’ basis, although operating
sets of eight filters process
data from the PLC is
up to
32 million litres a day of water.
communicated to South West
Rotork was responsible for the
Water’s central control at
design and fabrication of sixteen
Exeter.
Throttlina -rrl
J
and Damr>enina
Filtration
I
J
and Separation Dispersion Protecting
Across industries, GKN porous sintered metal filters are ideal for a variety of applications. From chemical processing to water treatment, these specially designed filters can outperform traditional filter media and reduce total manufacturinq costs. __r
httnNwww
nkn-filters mm ...J ,,,..,,._._.__..,
httD//www.aknsintermetals.com
RES No.518 - USE THE FAST NEW ENQUIRY SERVICE
20
September
2001
@ www.filtsep.com
Filtration+Separation
of filter backwashing
As part of a modernization
completely new actuated valve
Contact: Rotork Controls Ltd,
Fax: i-44 1225 333467;
programme undertaken by
packages, plus installation by its
Brassmill Lane, Bath, BAl 31% UK.
E-mall: [email protected];
South West Water, UK, Rotork
retrofit department.
Tel: +44 1225 733200;
Website: www.rotork.com
Controls Ltd’s electric valve
On a daily basis a minimum
actuators have been used to
of eight of the filters are
improve the efficiency of the
backwashed in sequence, with
backwashing processes of
the actuators programmed to
existing sand filters.
operate at a graduated speed
Rotork AQ electric actuators
profile to shut off the water
have been installed on new
supply, allow in the reverse wash
or existing backwashing valves
water and bring the filter back
in order to precisely control
on-line. The system’s graduated valve
their opening and closing
opening and closing profiles have
speeds. South West Water’s process partner Purac Ltd is the main
been precisely designed to ensure that the risk of hydraulic
contractor for the project at
shocks in the filters is
eight filtration plants in Devon,
significantly reduced.The
UK. One of the sites is at
is designed to work on a ‘stand-
plant
Tottiford Reservoir, where two
alone’ basis, although operating
sets of eight filters process
data from the PLC is
up to
32 million litres a day of water.
communicated to South West
Rotork was responsible for the
Water’s central control at
design and fabrication of sixteen
Exeter.
Throttlina -rrl
J
and Damr>enina
Filtration
I
J
and Separation Dispersion Protecting
Across industries, GKN porous sintered metal filters are ideal for a variety of applications. From chemical processing to water treatment, these specially designed filters can outperform traditional filter media and reduce total manufacturinq costs. __r
httnNwww
nkn-filters mm ...J ,,,..,,._._.__..,
httD//www.aknsintermetals.com
RES No.518 - USE THE FAST NEW ENQUIRY SERVICE
20
September
2001
@ www.filtsep.com
Filtration+Separation