Monitoring wastewater flow rates and demand
May 1st 2008 Scottish Water Scientific Services
in Dundee are undertaking surveys
of 111 treatment works sites to
establish current infrastructure
capacity. They are using Micronics
PDFM IV portable instruments to
monitor wastewater flow rates and
establish load profiles. The
objective is to establish the
demand profile and the
effectiveness of existing plants to
determine development
requirements. The Micronics
instruments have enabled
engineers to establish diurnal
sewage patterns and analyse plant
performance.
Ultrasonic, Clamp-On, Non
Contact measurement was
selected due to ease of installation
and the operational benefits of
non-contact technology. Micronics
was selected as the supplier due to
a combination of its experience
with ultrasonic, flow measurement
technology and its pre-order
service and guidance including a
free trial/demonstration offer.
Two Micronics PDFM IV
instruments were purchased as a
package. The PDFM IV's are
portable instruments, suitable for
full or partially filled pipes. They
have the capability to measure and
log influent/effluent flow and
totalised flow rates within treatment
works.
The survey project is currently
50% complete and the instruments
have been successfully used on
various sites. Micronics say the
software is user friendly with good
graphing facilities to identify peak
demand and duration peaks, using
a range of sample rates selected
by Scottish Water to establish flow
and load profiles over 28 day
logging periods. More articles from Micronics Ltd: | 
