 |
 |
| 99.9% |
| Wastewater treatment and flushing
toilet services cover 99.9% of the population. |
|
|
 |
| 2,844,000
m3/day |
| Twelve sewage treatment plants
can treat 2,844,000 m3 of sewage a day, which is equivalent
to approx. 2.4 Osaka Dome Stadiums. |
|
|
 |
| 4,830
km |
| The network of
sewer pipes (from 20 cm to 6.5 m in diameter) in place
in the city extends
a total distance of 4,830 km. |
|
|
|
|
 |
| 12 |
| The city has 12
sewage treatment plants. |
|
|
 |
| 57 |
| There are 57 pump stations in
operation. |
|
|
 |
| 1,328m3/sec. |
| In total, the
pumping facilities at pump stations and sewage treatment
plants are capable
of discharging approx. 1,328 m3 of water per second, which
is equivalent to about 6,600 oil drums. |
|
|
|
|
 |
| 600
tons |
| Sewage treatment,
etc. generates approx. 600-700 tons of sludge a day. The
sludge is reduced to approx. one eighth in volume through
incineration and reclaimed. Efforts are also made to recycle
sludge as construction material. |
|
|
 |
| 76.9% |
| Osaka City is
working on improvement of the sewerage system to handle
heavy rains of 60 mm an hour (considered to occur in a
roughly 10-year cycle). This sewerage system services 76.9%
of the area in which measures are taken against rainwater. |
|
|
|
| (March 31, 2005) |
