3. Wastewater management encompasses a
broad range of efforts that promote
Effective and responsible water use
Proper Water treatment
Proper Water disposal
Encourage the protection and restoration of our
nation's watersheds.
4. “It is the water
which is
discharged from
buildings, houses
etc which is unfit
for
consumption.”
5. Most wastewater from
a building is sanitary
wastewater which
includes
human waste,
cleaning solutions,
oil and grease from
cooking,
food particles, and
soil from cleaning
clothes and floors
7. If not treated properly
causes water pollution
Can lead to various
health hazards
Can cause soil pollution
8. Any oxidizable material present in a natural
waterway or in an industrial wastewater will
be oxidized both by biochemical (bacterial) or
chemical processes.
Since all natural waterways contain bacteria
and nutrients, almost any waste compounds
introduced into such waterways will initiate
biochemical reactions
9. Those biochemical reactions create what is
measured in the laboratory as the Biochemical
oxygen demand (BOD) and Chemical oxygen
demand (COD)
Both have been widely adopted as a measure
of pollution.
11. Some relatively
clean wastewater
can be reused
without treatment
Graywater is
wastewater
generated by
washing, laundry,
and bathing (not
from toilets)
50-80% of domestic
wastewater
Reused for irrigation
or flushing toilets
12. Closed-loop
treatment systems
Used to capture, treat,
and reuse waste water
on-site
E.g Car wash System
Wastewater
reclamation
Treats waste water and
use it for a different
purpose
E.g MC waste water
treatment and use for
irrigating parks
13. Wastewater is
transported to an
(on-site or off-site)
treatment facility,
treated, and
discharged into a
water body
Used for drinking
purposes
