This content describes a sustainable landfill reclamation technology designed to restore and recirculate both active and closed landfills by processing waste through pre-stabilization, separation, and solid production.
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sustainable landfill Reclamation
technology is to restore as well as
recirculate active and closed landfills
which have urgent landfill Reclamation
needs this technology consists of pre-
stabilization separation and solid
production the first step is pre-
stabilization a process which if
necessary is used used to remove
explosive gases including methane as
well as potentially odorous Gases such
as ammonia and hydrogen
sulfide inserting injection and
extraction well into landfill waste
layer connecting them to pre-
stabilization system and then injecting
mixture of air and aerosol less than 5
to 25 microm into landfill waste layer through
through
distributor after that extracting
explosive gas and odor gas generated
from this process to treat with
biofilter and then Excavating and
transporting stabilized landfill waste
area the second step is the separation
process which sorts the landfill waste
into soil combustible materials
incombustible materials and metal the
landfill waste is removed from the
landfill and transported to the
separation units where a back ho places
es it into the automatic feed Hopper if
a potential odor is detected during the
separation a deodorant is sprayed into
the waste material in the first step a
trml screen is used to remove and
separate the soils present in the
landfill waste which are less than 35 mm
in diameter the TRL screen is equipped
with customized blades on the inside and
brushes on the outside to prevent
clogging of the screen by the soils and
wastes the recovered soils of less than
35 mm diameter which contain non-soil
materials such as fragments of organic
material vinyl or plastic are not
allowed to be used for cover soils or
construction filling the TRL screen is
combined with a rotating rake allowing
highly accurate and efficient sorting
and separation of those smaller
fragments allowing the separated soils
to be
recycled after passing through the TRL
screen rotating rake the separated so
oil is transferred by a conveyor to a
storage pile typically located outside the
enclosure after removal of the under 35
mm clean soils by the TRL screen
rotating rake the remaining waste is
separated into combustibles and Inc
combustibles in a series of five
separation stages which comprises the
Metals included in the combustible
fraction are recovered by a magnet and
are transferred by a conveyor to a
storage pile which is typically located
enclosure
the incombustible fraction is
transferred by a conveyor to a storage
pile which is typically located outside the
enclosure the soil and the Inc
combustibles recovered from the sorting
system can be recycled and used as fill
material cover soil construction base or other
uses
the third phase of the process is the
production of refu derived fuel rdf from
the remaining combustible materials by a
series of shredding purifying grinding
and drying steps the combustibles enter
a shredder and are reduced in size to
less than 150 mm in size any Inc
combustibles remaining in the fraction
are removed by another separator to
enhance the combustibles quality and
heat value as rdf any metal remaining in
the combustibles fraction is removed by
magnet and ground into particles less
grinder incombustible foreign matters in
the ground combustible stream are
removed by a vibrating screen light
combustible material is removed by a
device heavy combustible components are
separator the combustible materials
recovered by the tornado vacuum and the
Precision separator then enter a second
grinder where they are ground to less
than 50 mm in
diameter the ground combustibles are
dried as necessary to meet the standards
of rdf by passing through a first stage
and second stage dryer producing fluff type
type rdf
rdf
finally the fluff type rdf enters a
compactor and baor producing a
compressed Cube to facilitate storage
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