HAMEDAN
SEWAGE
PROJECT
Client:
HAMEDAN
WATER
AND
WASTE
WATER
CO.
Location:
HAMEDAN
province
First
Stage:
Comprising
construction of main trunk
to alleviate pressing
problems of sewerage and
surface water collection in
those parts of the city that
have existing sewerage
system.
Second stage:
Completion of the whole
sewerage project for the 20-
year city boundary.
Project Features:
|
Project duration (year) |
25 |
Type of
Pipes |
250 ~ 400 mm |
Polyethylene |
|
Project prospect |
2021 |
500 ~ 1800 mm |
Concrete |
|
Population (person) |
Year 1996 |
435,000 |
Diameter
of Pipes (mm) |
250 ~ 1800 |
|
Year 2021 |
890,000 |
Sewers
Length (KM) |
Lateral |
1100 |
|
Sewage (LPCD) |
Year 1996 |
160 |
Main |
96.5 |
|
Year 2021 |
170 |
Number of
treatment plant |
1 |
|
Infiltration (Cu.M/Day/Ha) |
5 |
Population of wastewater treatment (person) |
1,000,000
|
|
Sewage
System |
Semi-Combined |
Method of
treatment |
Activated Sludge |
|
Area (Ha) |
7200 |
Number of
modules |
Year 1996 |
1 |
|
Year 2021 |
3 |
|
Design
Precipitation (mm) for 6 Hours of 5 year rain return
period |
23.3 |
Maximum
inlet to treatment plant (cu.m/s) |
6 |
|
No. of
Weirs |
20 |
|
