Frontiers in Microbiology,
Journal Year:
2020,
Volume and Issue:
11
Published: June 3, 2020
Engineered
and
monitored
sanitary
landfills
have
been
widespread
in
the
U.S.
since
passage
of
Clean
Water
Act
(1972)
with
additional
controls
under
RCRA
Subtitle
D
(1991)
Air
Amendments
(1996).
Concurrently,
many
common
perceptions
regarding
landfill
biogeochemical
microbiological
processes
estimated
rates
gas
production
also
date
from
2-4
decades
ago.
Herein
we
summarize
recent
application
modern
tools
as
well
metadata
analysis
using
California,
USEPA
international
data
to
outline
an
evolving
view
biogeochemical/microbiological
rates.
We
focus
on
because
these
are
uniformly
subject
stringent
national
state
requirements
for
design,
operations,
monitoring,
reporting.
From
a
perspective,
anoxic
conditions
methanogenesis
rapidly
established
after
daily
burial
waste
cover
soil,
>1000
thicknesses
up
>100m
form
large
ubiquitous
group
dispersed
'dark'
ecosystems
dominated
by
anaerobic
microbial
decomposition
pathways
food,
garden
waste,
paper
substrates.
review
past
findings
ecosystem
processes,
reflect
potential
impact
that
sequencing
technologies
(e.g.,
high
throughput
platforms)
could
this
area
research.
Moreover,
due
ever
composition
landfilled
reflecting
transient
societal
practices,
consider
unusual
known
or
suspected
occur
settings,
posit
areas
research
will
be
needed
coming
decades.
With
growing
concerns
about
greenhouse
emissions
controls,
increase
chemicals
emerging
concern
stream,
resource
streams
represent,
modernized
molecular
methods
is
paramount
importance
Environmental Science & Technology,
Journal Year:
2017,
Volume and Issue:
51(4), P. 2197 - 2205
Published: Jan. 20, 2017
Landfills
are
the
final
stage
in
life
cycle
of
many
products
containing
per-
and
polyfluoroalkyl
substances
(PFASs)
their
presence
has
been
reported
landfill
leachate.
The
concentrations
70
PFASs
95
samples
leachate
were
measured
a
survey
U.S.
landfills
varying
climates
waste
ages.
National
release
was
estimated
by
coupling
for
19
where
more
than
50%
had
quantifiable
concentrations,
with
climate-specific
estimates
annual
volumes.
For
2013,
total
volume
generated
to
be
61.1
million
m3,
79%
this
coming
from
wet
(>75
cm/yr
precipitation)
that
contain
47%
solid
waste.
mass
wastewater
treatment
plants
between
563
638
kg
2013.
In
majority
samples,
5:3
fluorotelomer
carboxylic
acid
(FTCA)
dominant
variations
age
affected
mass.
There
six
demonstrated
significantly
higher
younger
compared
older
PFAS
significant
variation
climate.
Environmental Science & Technology,
Journal Year:
2019,
Volume and Issue:
53(6), P. 2950 - 2960
Published: March 5, 2019
This
is
the
first
large-scale,
systematic
assessment
of
hormone
and
pharmaceutical
occurrence
in
groundwater
used
for
drinking
across
United
States.
Samples
from
1091
sites
Principal
Aquifers
representing
60%
volume
pumped
drinking-water
supply
had
final
data
21
hormones
103
pharmaceuticals.
At
least
one
compound
was
detected
at
5.9%
844
resource
public
entirety
15
Aquifers,
11.3%
247
domestic
over
subareas
nine
Aquifers.
Of
34
compounds
detected,
plastics
component
(bisphenol
A),
three
pharmaceuticals
(carbamazepine,
sulfamethoxazole,
meprobamate),
caffeine
degradate
1,7-dimethylxanthine
were
more
than
0.5%
samples.
Hydrocortisone
a
concentration
greater
human-health
benchmark
1
site.
Compounds
with
high
solubility
low
Koc
most
likely
to
be
detected.
Detections
common
shallow
wells
recent
recharge,
particularly
crystalline-rock
mixed
land-use
settings.
Results
indicate
vulnerability
water
U.S.
contamination
by
these
generally
limited,
exposure
concentrations
unlikely
have
adverse
effects
on
human
health.
Environmental Science & Technology,
Journal Year:
2020,
Volume and Issue:
54(16), P. 9757 - 9768
Published: June 19, 2020
Pharmaceutical
and
personal
care
products
(PPCPs)
have
been
the
focus
of
increasing
concern
in
recent
decades
due
to
their
ubiquity
environment
potential
risks.
Out-of-date
PPCPs
are
usually
discharged
into
municipal
solid
wastes
(MSWs),
enter
leachates
MSW
landfills,
serious
adverse
effects
on
surrounding
water
environment.
However,
occurrence
removal
from
landfill
rarely
examined
date.
This
lack
knowledge
makes
an
underestimated
source
In
this
review,
we
collected
relevant
publications
leachates,
systematically
summarized
globally,
evaluated
performances
for
various
by
different
types
on-site
full-scale
leachate
treatment
processes,
assessed
impacts
adjacent
groundwater.
particular,
influencing
factors
including
physicochemical
properties
PPCPs,
climate
conditions,
characteristics
sites
(i.e.,
ages)
as
well
sociological
economic
development),
were
extensively
discussed
understand
patterns.
Future
perspectives
also
proposed
light
identified
gaps.
To
best
our
knowledge,
is
first
review
regarding
worldwide.
International Journal of Environmental Research and Public Health,
Journal Year:
2021,
Volume and Issue:
18(5), P. 2532 - 2532
Published: March 4, 2021
Pharmaceuticals
enhance
our
quality
of
life;
consequently,
their
consumption
is
growing
as
a
result
the
need
to
treat
ageing-related
and
chronic
diseases
changes
in
clinical
practice.
The
market
revenues
also
show
an
historic
growth
worldwide
motivated
by
increase
on
drug
demand.
However,
this
positivism
fogged
because
discharge
pharmaceuticals
metabolites
into
environment,
including
water,
increases
due
inappropriate
management,
treatment
disposal;
now,
worldwide,
fact
recognized
environmental
concern
human
health
risk.
Intriguingly,
researchers
have
studied
most
effective
methods
for
pharmaceutical
removal
wastewater;
however,
types
investigated
these
studies
do
not
reflect
produced
consumed
market.
Hence,
attempt
was
done
analyze
market,
drugs
trends
research
interests
worldwide.
Notwithstanding,
intensive
work
different
fronts
such
disposal
fate,
impacts
concerns,
risks,
removal,
degradation
development
technologies,
found
that
totally
aligned
with
patterns.
There
are
other
drivers
promote
research.
Thus,
review
important
contribution
those
interested
only
consumption,
but
links,
motivate
determine
certain
groups
water
wastewater.
Environmental Science & Technology,
Journal Year:
2019,
Volume and Issue:
53(8), P. 4450 - 4459
Published: March 19, 2019
Chlorine
photolysis
is
an
advanced
oxidation
process
which
relies
on
photolytic
cleavage
of
free
available
chlorine
(i.e.,
hypochlorous
acid
and
hypochlorite)
to
generate
hydroxyl
radical,
along
with
ozone
a
suite
halogen
radicals.
Little
known
about
the
impact
wavelength
reactive
oxidant
generation
even
though
absorbs
light
within
solar
spectrum.
This
study
investigates
formation
oxidants
during
as
function
pH
(6-10)
irradiation
(254,
311,
365
nm)
using
combination
quantification
validated
probe
compounds
kinetic
modeling.
Observed
loss
rate
constants
increase
at
high
wavelengths
due
higher
molar
absorptivity
hypochlorite
(p
Ka
=
7.5),
while
there
no
change
254
nm.
Hydroxyl
radical
steady-state
concentrations
are
greatest
under
acidic
conditions
for
all
tested
highest
311
nm
irradiation.
Ozone
observed
conditions,
maximum
cumulative
8
A
comprehensive
model
generally
predicts
trends
in
concentrations,
but
comparison
previously
published
models
reveals
challenges
modeling
this
complex
system.
Environmental Science Water Research & Technology,
Journal Year:
2020,
Volume and Issue:
6(5), P. 1300 - 1311
Published: Jan. 1, 2020
Widespread
disposal
of
landfill
leachate
to
municipal
sewer
in
the
US
calls
for
improved
understanding
relative
organic-chemical
contributions
WWTP
waste
stream
and
associated
surface-water
discharge
receptors
environment.
Antibiotics,
Journal Year:
2021,
Volume and Issue:
10(4), P. 374 - 374
Published: April 1, 2021
The
disposal
of
municipal
solid
waste
(MSW)
directly
at
landfills
or
open
dump
areas,
without
segregation
and
treatment,
is
a
significant
concern
due
to
its
hazardous
contents
antibiotic-resistant
bacteria
(ARB),
antibiotic
resistance
genes
(ARGs),
metal
(MGEs).
released
leachate
from
greatly
effects
the
soil
physicochemical,
biological,
groundwater
properties
associated
with
agricultural
activity
human
health.
abundance
ARB,
ARGs,
MGEs
have
been
reported
worldwide,
including
MSW
landfill
sites,
animal
husbandry,
wastewater,
groundwater,
soil,
aerosol.
This
review
elucidates
occurrence
MRGs,
which
are
regarded
as
emerging
contaminants
(ECs).
Recently,
ECs
received
global
attention
because
their
prevalence
in
substantial
threat
environmental
public
health,
an
economic
burden
for
developing
nations.
present
exclusively
discusses
demands
develop
novel
eco-friendly
management
strategy
combat
these
issues.
also
gives
intrinsic
discussion
about
insights
different
aspects
health
concerns
caused
massive
generation,
antibiotics
(AR),
on
various
reservoirs
Furthermore,
current
throws
light
source
fate
possible
impact
nearby
environments
(groundwater,
surface
water,
soil)
affecting
strongly
suggests
demand
future
research
focuses
advancement
removal
efficiency
improvement
relevant
reduce
potential
disposable
waste.
We
propose
necessity
identification
monitoring
risks
contaminants.
