Automatic filtration protection
June 1st 2007 Severn Trent Water has installed a
series of nitrate removal systems for
its un-manned borehole water
treatment plants.
Nitrate removal plants
incorporate vessels with ion
exchange resin to remove nitrates
from raw water, and it is vital that
any particulates, such as sand or grit,
in the water are removed to prevent
damage to the sensitive resin beads
and stop the risk of blockages.
The systems incorporate skidmounted
units with Boll filters to
provide particulate removal (down
to 50 microns). Each skid is fitted
with an automatic self-cleaning filter
plus a standby manual filter linked
to a remote alarm.The automatic
filter – which is set to backflush on a
regular basis or if the system
pressure drops – prevents potential
blockages in the equipment.
Boll filters are designed for longlife
performance in demanding
conditions – offering filtration levels
from 25 micron to 3mm. More articles from Bollfilter UK Ltd: | 
