This document discusses wastewater management and treatment. It describes the composition of wastewater from buildings as including human waste, cleaning solutions, oils and grease. If not treated properly, wastewater can pollute water sources and soil, and pose health hazards. The document then outlines various wastewater treatment methods like reuse, recycling, and water treatment facilities to purify wastewater before discharge or reuse.

1.
Japneet
Kaur

2. n Introduc/on
n Composi/on
n Problems
n Detec/on
n Solu/ons

3. n Wastewater
management
encompasses
a
broad
range
of
efforts
that
promote
n Effec/ve
and
responsible
water
use
n Proper
Water
treatment
n Proper
Water
disposal
n Encourage
the
protec/on
and
restora/on
of
our
na/on's
watersheds.

4. “It
is
the
water
which
is
discharged
from
buildings,
houses
etc
which
is
unfit
for
consump/on.”

5. n Most
wastewater
from
a
building
is
sanitary
wastewater
which
includes
n human
waste,
n
cleaning
solu/ons,
n oil
and
grease
from
cooking,
n food
par/cles,
and
n soil
from
cleaning
clothes
and
floors

6. n Commercial
establishments
may
also
discharge
metals,
acids
and
bases,
and
small
par/cles
of
plas/c,
glass,
stone,
etc

7. n If
not
treated
properly
causes
water
pollu/on
n Can
lead
to
various
health
hazards
n Can
cause
soil
pollu/on

8. n Any
oxidizable
material
present
in
a
natural
waterway
or
in
an
industrial
wastewater
will
be
oxidized
both
by
biochemical
(bacterial)
or
chemical
processes.
n Since
all
natural
waterways
contain
bacteria
and
nutrients,
almost
any
waste
compounds
introduced
into
such
waterways
will
ini/ate
biochemical
reac/ons

9. n Those
biochemical
reac/ons
create
what
is
measured
in
the
laboratory
as
the
Biochemical
oxygen
demand
(BOD)
and
Chemical
oxygen
demand
(COD)
n Both
have
been
widely
adopted
as
a
measure
of
pollu/on.

10. n REUSE
n RECYCLE
n WATER
TREATMENT

11. n Some relatively
clean wastewater
can be reused
without treatment
n Graywater is
wastewater
generated by
washing, laundry,
and bathing (not
from toilets)
n 50-80% of domestic
wastewater
n Reused for irrigation
or flushing toilets

12. n Closed-loop
treatment systems
n Used to capture, treat,
and reuse waste water
on-site
n E.g Car wash System
n Wastewater
reclamation
n Treats waste water and
use it for a different
purpose
n E.g MC waste water
treatment and use for
irrigating parks

13. n Wastewater is
transported to an
(on-site or off-site)
treatment facility,
treated, and
discharged into a
water body
n Used
for
drinking
purposes