Local Plan for Sustainable Development of Sibiu Municipality

19
SIBIU
• Water transportation is carried out through
supply pipelines 75,345 km in length, having
diameters between 250-1,200 mm.
• Water treatment is carried out in the Treatment
Station ST1 Calea Cisnădioarei for the waters
coming from the underground sources, and in
the Treatment Station ST2 Dumbrava for the
waters coming from surface sources, with an
overall treatment capacity of 1,560 l/s.
• Treatment Station Sibiu South ST3 is still in the
construction state, being designed for a
treatment capacity of 400 l/s.
• There are seven storage tanks with a capacity
of 34,200 m 3 , to compensate for the varying
consumption from the distribution network, as
well as for storage in the case of fire or other
accidents, and for water disinfection.
• The distribution network consists of a
framework of pipes having diameters between
50 – 1,000 mm, made of: 65 % cast iron, 20 %
steel, 2.5 % asbestos-cement, 10 % concrete
tubes, and 2.5 % polyethylene. Seven pumping
stations run within the distribution network, with
buffer tanks, pumping groups and hydrophore
tanks. The distribution is carried out through
314.674 km of networks.
• The sewage system of Sibiu consists of a
sewage network having 252,248 km in length,
made of concrete tubes, the majority in an
integrated system. On the left bank of the Cibin
River, the network is made in a separate
system, but the length of pluvial collectors
represents a small part of the sum.
• For the evacuation of wastewater from the left
bank of the Cibin River area there are four
pumping stations, with a total installed capacity
of 1,500 m 3 /h.
• Wastewater is transported to the treatment
station through a main collector channel, 5.3
km in length.
• The treatment of wastewater is performed in
the Şelimbăr treatment station, built in 1970
and including a mechanical treatment step, with
a capacity of 1,500 l/s and a biological
treatment step with a capacity of 1, 000 l/s.
WATER NETWORKS STRUCTURE
Materials and operational period (o.p.):
Cast iron 65.09% Operational period 80 years
Iron 18.06% o.p. 40 years
Concrete 9.76% o.p. 30 years
PE 4.60% o.p. 7 years
Azbo 2.43% o.p. 30 years
PVC 0.06% o.p. 25 years
Water network lengths currently operational:
under 10 years between 10-20
years
between 20-30
years
between 30-40
years
between 40-50
years
over 50 years
8 km 62 km 69 km 82 km 10 km 83 km
SEWAGE NETWORK STRUCTURE
Materials and operational period (o.p.):
Concrete 94,43% o.p. 80 years
Reinforced Concrete 4,64% o.p. 35 years
Azbo 0,59% o.p. 30 years
Ceramics 0,16% o.p. 30 years
PE + PVC 0,18% o.p. 5 years