2. Introduction
Need of study
Purpose of study
Monitoring Parameters
Installation
Monitoring location
Sensors using in monitoring
Output from sensors
Conclusion
3.
4. The challenges that municipalities face
today is to provide 24hrs safe water to the
consumers ,also almost all water distribution
networks are ever expanding and they are
very complex
At the same time protecting public health
Is a key responsibility of all the municipal –
corporations and to achieve that it requires
quick identification of contamination.
5. Thus, improved monitoring of water
distribution networks will enable utilities to
reduce losses of water and energy, gain operational efficiency, optimize supply, and
enhance network planning
6. online monitoring networks bear the
potential to make networks more efficient by
reducing water loss, maintenance costs and
repair costs.
It increases the quality of the supplied
water. By having reliable and consistent visibility onto water distribution networks
and handling issues early, reduce water loss.
7. some benefits of monitoring water
distribution network
(1) Water savings
(2) Energy savings
(3) operational network visibility
(4) Damage prevention
(5) Early detection of network inefficiencies
and quality issues
8. The distribution system monitoring
program must include parameters that will
fulfill regulatory requirements and provide
the municipality with an understanding of
what is affecting the water quality within the
distribution system.
9. The key parameters that are commonly
considered to be indicators of water quality in
Terms of public health are:
(1) Chlorine residual
(2) E-coli
(3) Disinfection by-products
11. Online monitoring sensors is placed
perpendicular to flow. Either tee section or
small opening is provided in the pipe. Sensors
comes with holder of the same size as that of
tee section or it is welded at the opening.
sensor attached to a gate valve
12. When developing a monitoring
program, the locations at which various
parameters are monitored should be based
on regulatory requirements, historical
data, distribution system
characteristics, population or consumer
distribution and operational requirements.
13. It is important to evaluate the historical
data, distribution system characteristics, and
operational requirements to establish the
appropriate monitoring locations.
Monitoring locations should include
high risk areas that have sensitive
facilities, such as hospitals, due to their
sensitivity to public health. Municipalities
may also want to monitor certain parameters
to meet their industrial consumer’s
needs, such as high tech or food producing
companies
15. The output displays various water quality
parameters value at predefined intervals as shown
in the figure. Depending upon output values
various decision making processes are carried out.
16. Outcomes
Using conventional sampling
technique if any fault is detected, it is first
sent to the laboratory, various tests are
carried out and decision is made there after.
the time taken during this process is nearly
20 to 72 hrs. In case of online monitoring the
detection of the problems involves no
manual processes and the problem is
attended within 2 to 18 hrs. Efficiency is
increased.
17. Online monitors have clear advantages
over conventional monitoring techniques.
Online monitors can help mitigate the risk of
water quality deterioration in the distribution
system by providing municipality with timely
information on the parameters being
monitored. They can increase consumer
confidence by providing realtime,continuous
monitoring results. They provide monitoring
results 24hrs per day, of all365 days of year.
