To proactively manage and monitor the sewer networks
throughout Qatar, the Public Works Authority ‘Ashghal’’s Drainage Networks
Operations & Maintenance (DN O&M) Department has established a new
system entitled “Real Time Monitoring Project”.
This innovative project, which commenced on March 2016, will
set up monitoring systems in both the Foul and Surface Ground Water Networks.
The project, due to be complete by Q1, 2019, will enable DNO&M staff to observe the
performance of the Foul Sewer and Surface Ground Water Networks throughout
Qatar, in addition to providing all accurate real time information.
Subsequently, this will help proactively act to sustain the
services being provided in a way that would reduce flooding incidents and
customer complaints, protect our pipeline assets from the build-up of hydrogen
sulphide, and finally contribute to improvements in the quality of sewage
pumped to the treatment plant to further protect these assets and the quality
of recycled water.
This project consists of the installation and maintenance of
290 flow meters, 400 depth monitors, 90
hydrogen sulphide monitors, 90 saline monitors, 4 rain gauges and 100
cameras; all being placed at critical parts of the network. These ‘eyes’ on the
network will, in combination with the existing SCADA system, provide real time
monitoring and early warning alarms, to assist in the building of greatly
enhanced network performance intelligence to engineers, prevent defects and service interruptions.
Worth to be mentioned that reporting and viewing of data will
be accessible to multiple users through desk top and mobile devices such as
iPads.
In addition, Ashghal and DNO&M are utilising the Innovyze
ICM Live software to utilise this real time input data to establish, for the
first time in Qatar, operational planning and support hydraulic models of its
networks to provide enhanced support to engineers to manage and resolve
incidents.
Advantages for the Surface Ground
Water Network:
‘Real Time
Monitoring’ is an important ‘project’ that will have significant benefits on
the assets of Surface Ground Water Networks.
I would assist in understanding the capacity and performance of the
Surface Ground Water Network, impacted by ground water infiltration, dewatering
discharges into the network from construction sites and seasonal storms.
In addition,
the ability to monitor the networks in the vicinity of key underpasses will
give yet further visibility and early warnings of surcharge levels. Senior Drainage Engineer Hugo Martins said,
“The real time information will support our management of rainy season
incidents by alarming us as sewer water levels rise during incidents and allow
us to prioritise where to target our resources”.
Benefits on the Foul Network:
The Foul
Network is prone to blockages and occasional collapses causing the
consequential backing up of the sewer network and flooding. The introduction of these new monitors will
give engineers early warning alarms of level increases in the network from the
normal patterns. This will allow the engineers to carry out early
investigations and intervene where problems are identified to avoid flooding
incidents, backups and collapses before they become problematic to ‘Ashghal’
customers.