Environmental Technology,
Год журнала:
2022,
Номер
45(9), С. 1696 - 1707
Опубликована: Дек. 8, 2022
The
objective
of
this
study
is
to
propose
a
new
post-treatment
effluents
from
Upflow
Anaerobic
Sludge
Blanket
(UASB)
using
rapid
filtration,
aiming
at
the
production
water
for
potable
reuse.
final
quality
effluent
produced
by
treatment
gravel,
sand,
clinoptilolite
and
activated
carbon
associated
with
disinfection
was
evaluated
physical
chemical
analysis,
heavy
metals
persistent
organic
contaminants.
Experiments
were
carried
out
in
jar
test,
filter
operation
time,
evaluation
efficiency
peracetic
acid
free
chlorine
as
disinfectant
all
results
statistically
analysed.
best
conditions
those
20
mg/L
ferric
chloride
natural
pH
(≈
7.0),
which
resulted
less
reagent
consumption.
use
intermediate
fund
discharges
made
it
possible
obtain
approximately
91%
recovered
efficiency.
treated
under
these
showed
DOC
<2.0
mg/L,
COD
<1.0
BOD
turbidity
NTU,
TSS
ammonia
<0.1
total
phosphorus
surfactants
mg/L.
process
PAA
allowed
inactivation
faecal
coliforms
coliforms.
filtration
reached
appropriate
level
urban,
environmental,
industrial
indirect
Wiley Interdisciplinary Reviews Water,
Год журнала:
2023,
Номер
10(6)
Опубликована: Июль 11, 2023
Abstract
Centralized
water
infrastructure
has,
over
the
last
century,
brought
safe
and
reliable
drinking
to
much
of
world.
But
climate
change,
combined
with
aging
underfunded
infrastructure,
is
increasingly
testing
limits
of—and
reversing
gains
made
by—this
approach.
To
address
these
growing
strains
gaps,
we
must
assess
advance
alternatives
centralized
provision
sanitation.
The
literature
rife
examples
systems
that
are
neither
nor
networked,
yet
meet
needs
local
communities
in
important
ways,
including:
informal
hybrid
systems,
decentralized
provision,
community‐based
management,
small
point‐of‐use
treatment,
small‐scale
vendors,
packaged
water.
Our
work
builds
on
literatures
by
proposing
a
convergence
approach
can
integrate
explore
benefits
challenges
modular,
adaptive,
(“MAD”)
sanitation,
often
foregrounding
advances
engineering
technology.
We
further
provide
frameworks
evaluate
justice,
economic
feasibility,
governance,
human
health,
environmental
sustainability
as
key
parameters
MAD
system
performance.
This
article
categorized
under:
Engineering
Water
>
Water,
Health,
Sanitation
Human
Governance
Sustainable
International Journal of Environmental Health Research,
Год журнала:
2025,
Номер
unknown, С. 1 - 19
Опубликована: Апрель 12, 2025
Slums
worldwide,
from
Africa
to
Asia,
face
inadequate
infrastructure,
fostering
health
crises,
and
hindering
progress
toward
sustainable
development
goals
related
clean
water
sanitation.
Densely
populated
slums
pose
significant
risks
due
poor
waste
management.
This
study
examines
the
link
between
sanitation
in
10
Khulna,
Bangladesh.
The
research
evaluates
339
randomly
selected
households
using
a
rapid
assessment
tool
detailed
survey,
with
ArcGIS
aiding
sampling
process.
Findings
reveal
disparities
private
public
facing
higher
than
semi-public
ones.
About
70%
of
have
composite
risk
score
above
50%,
40%
are
exposed
crises.
Overall,
present
medium-scale
hazards,
vulnerability.
Addressing
these
challenges
requires
tackling
exposure,
vulnerability,
enhancing
access
safe
sanitation,
reducing
waterborne
diseases,
resilient
urban
infrastructure.
Policymakers
should
invest
promote
education,
implement
action
plans
improve
living
conditions
Khulna's
slums.
Environmental Research,
Год журнала:
2023,
Номер
245, С. 118062 - 118062
Опубликована: Дек. 27, 2023
Hydrothermal
carbonization
(HTC)
is
considered
a
promising
technology
for
biomass
waste
management
without
pre-drying.
This
study
explores
the
potential
swine
manure
by
comparing
batch
and
continuous
processes,
emphasizing
benefits
of
mode,
particularly
its
full-scale
application.
The
process
at
low
temperature
(180
°C)
resulted
in
hydrochar
with
lower
degree
compared
to
process,
but
similar
characteristics
were
found
both
hydrochars
higher
operating
temperatures
(230-250
°C),
such
as
C
content
(∼
52
wt%),
fixed
carbon
24
wt%)
calorific
value
(21
MJ
kg
Energy Nexus,
Год журнала:
2024,
Номер
14, С. 100290 - 100290
Опубликована: Апрель 1, 2024
The
wastewater
treatment
plant
(WWTP)
uses
a
dewatering
machine
to
separate
sludge
from
water.
resulting
is
used
as
raw
material
for
Refuse
Derived
Fuel
(RDF),
while
the
separated
water
treated
in
subsequent
WWTP
unit.
However,
currently
only
processed
into
briquettes
per
policy
and
then
disposed
of
landfills.
Our
investigation
centers
on
effects
carbonization
temperature
characteristics
Initial
analysis
revealed
that
1-day-old
possesses
high
moisture
content
(87.72%)
low
calorific
value
(3.44
MJ/kg).
Carbonization
at
300°C
significantly
enhanced
sludge's
12,504
MJ/kg,
reduced
its
60.72%,
increased
carbon
percentage
22.76%,
indicating
direct
correlation
between
both
energy
recovery
content.
Comparative
showed
carbonized
lower
temperatures
(200°C
100°C)
yielded
percentages
(22.23%
21.66%,
respectively)
values,
underscoring
efficiency
higher
optimizing
recovery..
This
research
contributes
developing
sustainable
organic
waste
recycling
practices
supports
achieving
Sustainable
Development
Goals
11
12
targets.
promotes
development
by
improving
utilization
WWTPs
production
rather
than
being
directly
study
provides
insight
potential
waste,
technology,
policy's
role
circular
economy.
