March 2012.pdf - QC-Sites

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SITES
ConstruCtion
Ashghal expanding sewage treatment network
The North Doha network project serves the city’s northern areas which include Gharafa, Umm Salal, Sumaysimah and Lusail
Ashghal (Public Works
Authority) is to execute
a project for extending
the sewage treatment
pipelines in Al Khor, connecting
it to the network of northern
Doha.
The project forms part of an
Ashghal plan to secure highquality
treated water for irrigation
in farms and for watering
parks and green areas in
schools and shopping malls.
Al Khor is also witnessing the
implementation of a project
for a main sewage treatment
plant to serve the city and its
suburbs. It will serve around
36,000 people.
Among the other projects being
implemented by the Authority
is a main pumping line
of 1,200mm for the disposal
of treated sewage water from
western Doha plant to Al Rakhiya
farms. The project has been
awarded to Al Jaber Engineering
with a value of QR136,189,467.
The project of establishing the
main pumping line, which exists
at the side of Salwa International
Road, aims to double
pumping of 800mm to be ramified
from western Doha station.
The pumping line is made of
glass reinforced polyester for
1,200mm and extends to a distance
of 30km.
The pumping line links the
existing sewerage section of
300mm diameter at the sand
removal plant affiliated to the
Qatar Industrial Products Company.
It is composed of the type
of HDPE for 300mm diameter
with a length of approximately
10 meters.
The link to the sand washing
plant affiliated to the Qatar National
Cement Company is established
to pump lines made
of glass reinforced polyester of
1200mm and 500mm in diameter
and stretching for 720m.
A link to the tanks at Al Rakhiya
farms is being established with
main pumping lines made up
of glass reinforced polyester
(GRP) of 1,200mm. Its diameter
extends with a length of
almost 10meters.
The North Doha network project
serves the city’s northern areas
which include Gharafa, Umm
Salal, Sumaysimah and Lusail
for the treatment of sewerage
water including sewerage area
number 25 of 60,000 cubic
meters per day as an estimated
capacity for the first phase.
Upon completion of this project,
these areas as well as North
Road and sea route will be supplied
with irrigation water. This
project is considered one of the
strategic and vital projects to
the country’s infrastructure and
its development.
The project includes operation
and maintenance of the plant
for 10 years.
The Asset-Affairs sector im-
plements the management
of sewerage operation and
maintenance at the Authority,
including sewerage operation
and maintenance project
of the two plants at Al Nuaija
and the Industrial Area wastewater
treatment at a total cost
of QR261,070,029. The duration
of project implementation
is seven years, ending in mid-
2016.
The project of operation and
maintenance of sewerage
plants at Al Nuaija and the
Industrial Area aims to treat
wastewater.
The project’s contractor is Veolia
Water and the project management
team, which consists
of engineers from the department
of wastewater treatment
plants, is to supervise the implementation
in co-ordination
with the Hyder Consulting company.
The project contractor is to
provide labor required from experts
and engineers to technicians
for the two plants in order
to carry out daily operation and
maintenance and prepare periodic
maintenance programs as
well as providing spare parts,
chemicals and others.
The contractor also prepares
required treatment and operation
programs in order to access
high quality treated water
according to global environmental
standards.
Moreover, the contractor will
be responsible for the security
and safety of the two plants and
their existing equipment.
The Sailiyah plant expansion
project, located west of Doha,
is intended to serve the increasing
population of Doha’s western
regions and its suburbs.
The expansion will serve nearly
500,000 people by 2020. As
soon as the expansion work is
completed, the plant will produce
high quality treated water
with the best international standards,
for use in agriculture.
The project includes operation
and maintenance of the
plant for 10 years in addition
to the establishment of drainage
plant for surface water
and groundwater. This project
covers most of central and
southern Doha, including the
areas of Al Murra, Al-Aziziyah,
Al Manasir and Abu Hammour.
It aims to compile and divertrainwater
and groundwater
from areas mentioned above in
the pumping station number 5
which will pump an additional
amount of approximately 6,000
liters per second of rainwater
and groundwater into the sea.
The water treatment network
for Salwa Highway road aims
to serve Salwa Road and Tariq
ibn Ziyad camp with a length of
12km, with cancellation of the
two pumping plants SB2, SB1
and rehabilitation of pumping
plants SB4 and SB3.
Al Sailliya treatment plant will
LocaL
be deactivated with the transfer
of its sewage to the pumping
station number 5 .The Authority
continues its plans to use water
of drainage lakes located in
outer cities. The authority works
to create three new treatment
plants at Alkraana, Al Khor and
Umm Berka as well as expanding
and increasing absorption
of 30 pumping stations of 167
total stations distributed over
areas of the State.
One of the most important projects
of sewerage network is at
the Ain Khalid area and it will
be implemented this year.
The Authority establishes drainage
network especially for Al-
Nasiriyah, Al- Khaisah, Uzgawa,
Duhail, Umm Salal, Mesaimeer,
Abu Hamour and the Industrial
Area. Wastewater treatment is
a significant area for the Sewerage
Affairs Department as
it has direct impact on public
health and environment. Wastewater
is being collected from
several sources. Water used for
domestic and commercial purposes
is one of the most important
sources. It contains many
impurities, suspended, organic
and decomposed substances,
which must be treated in order
to avoid their negative effect on
public health and environment.