welcome to you go it’s the magnificent
territory in Canada’s far north
where I grew up
unfortunately there as in all
the ecosystems of the planet
sometimes there are accidents of
oil spills like this one
leave marks long after the
initial spill well opens in
the only there are micro organisms that
can work to degrade the
petroleum hydrocarbons
but this natural attenuation is
long then one of the cold climates
how it counts is very long I
became aware of that when I
works for the ministry of
the environment
our role was to go to
sites in remote areas like this one
sometimes and remove barrel oil
or contaminated soils it’s
far away and we give ourselves helicopter a
truck that burned a quantity
incredible oil to get out of
oil from the front of remote areas
it seemed a bit counterintuitive
on the other hand I think we are all
okay we can not leave that there
then we remove them
and then what happens to it
traditional method it ‘s the same
processing platform is added
up using inorganic jo’s
Beijing then embrace the idea it is
stimulate microorganisms in the
soil with a supply of nutrients for
that can degrade carbon in
oil I would just like to emphasize
in temperate regions like the south
du Québec 6 has a proven track record
it works in north pole days of
times it’s effective but sometimes it’s
mixed results and it’s not effective
at all it does have effects
inhibitors and it’s less effective than
if we had let microbes do
their work
a method of speeding up that process
in north brew the soils if in quebec
it’s not allowed but there if you
want you can arms it’s all
the days these different impacts in front of
we are still burning oil to make
roll the machinery and then my a
some relativisation of the soil towards
the ideal tempo atmosphere something else that
in my opinion is not ideal
use of fertilizers
inorganic is that often they
come from very far it’s true that a
goat or transport to bring them in gold
I’m still waiting for processes
energy-hungry to synthesize them sometimes
but they come from sources
and then sand like phosphorus and
finally if we try to be treated
on the same site are at the foot of the
mountain as we saw earlier in the
researchers found that the contribution of
inorganic fertilizers could stimulate the
invasive plant growth at
place of wounds of plant species
native these species and effect they are
visible up to 15 years in the future
so it’s huge as impact then
in short, I was not completely satisfied
of the status quo but I had no
solution when I quest
of solutions and 7.4 starts at the heart the
fashionable petroleum extraction beast
conventional one finds a deposit on
pump to the surface the deposit him his
history dates back to 210 million years ago
take for example a forest in the middle
wet is buried
special conditions of pressure
millions of years and we love
oil
she ‘ll know if you’re wondering
maybe true but the plants the
fungi bacteria what role is the
played today for this management the
here is the beauty of nature
take a tree on the greenway a
champions chicks wound that announced
these tough a tree and if there is any
among you who have already tried to
to walk a log these tough is hard
show a log Has yet the
mushroom is getting him
to feed dollar that’s because
the ability to degrade line n
line n is a vegetal polymer
recalcitrant that gives to resist to
woody species like the trees the
shrubs massicois pay closer
if we dive into the bottom of the barrel
oil
here’s what the molecular structure to
the art of some
multiple molecules that compose it
can see that some similarities
including herbal teas or benzene which
are part of some pollutants
recalcitrant in the oil compounds
like the fathers to the breakaway and others
actors is visible too who live
under the ground the plants the trees
invest a large amount of
resources including sugars the
photosynthesis to stimulate the
growth of microorganisms in the
soil these bacteria their kids from between
they who can also eat chains
of carbon that are similar ever
carbon in oil so simplified
impulsive and that’s to give you a
idea of the role that these three big
components may have to play
now our tree to play in the
degradation of petroleum hydrocarbons
and problems of containing our weapon
him vip in isolation with his mushroom
and lives in a forest via several
tree species billions of
bacteria under the ground and several
mushroom species that can bind
using their various mycelium
plant species and even bacteria
that goes out along the flair of these
filaments of mycelium there these three
large components evolved together in
complex ecosystems
for millions of years in the
nature there was no evolved waste
together a shot yes of competition
fight life the law of the jungle but
especially shots all together
in the system and eat reincorporate
recycled if we came to our oil
births hopes this relationship
tripartite kouyou we did not want
apply it for floor cleaning
contaminated at two sites in particular
near the city of whitehorse on
first c was contaminated with diesel on
put our three components under this
form
firstly the compost that astonished
of nutrients a contribution of
beneficial microorganisms that
improve the texture of the soil which is a
little a support platform for them
plants the mushrooms or if then we
added the oyster which is an incident
little white carrie mushrooms that
is already known for his ability to
degrade certain petroleum compounds to
base of ben 10
especially finally plants side we have
put a floor
this is the ex planifolia it’s his little
Latin name this plant there is known in
north as being one of the survivors
when oil spills ex
lace in a natural environment
our second site is a challenge of
cut
it’s actually a fake had luz and
that we placed on old sterile
mines from a copper mine and then that
been to stay touched a touchdown during
about 40 years old we can see his wife a
little word mordor is not much
who poses it is a 7-1
mixed contamination
so there are chlorinated compounds of
metals and a lot of hydrocarbons
oil tankers up to 20% of the mass of
ground the first thing we put effect
Plant
we were with two the same as at first
site selestat the maple leaf and a second
room ex alex prentice because
other researchers had found who
has recruited in season dressler
micro organisms that had the ability
grades and chlorinated compounds
secondly I’m treated versicolor a
title mushroom that happens white
also but known as being
even more aggressive than the oyster mushroom and
finally compost for the same
reasons that in the first set I would like
take a moment to emphasize that we have
really wanted to operate in a mode
of circular economy
then the compost is used a compost to
from residues table of residents of
the city of whitehorse our species of
plants and mushrooms and species
natives present in the region one does not
leads only to a willow cuttings
near the city and then to my
excuse and we really wanted to value
local matters, particularly with
wood chips for the treatment of
mushrooms that were from
maintenance crews along the roads
of the city so how did we get
process to put all your tabs
together in the first set
we are used bins we put different
combination components of our three
biological components
we kept a ferry with nothing
our control to represent
natural attenuation
and finally organic fertilizer
to compare the industrial method
usual to our ecosystem method
what did it give when I’m
arrived on the ground I saw that at the
end of the first and and I was very
happy to see our bins that was
covered with large fruiting bodies
I hear this, but that confirms me
our mushrooms were alive
in our system also in this
treatment especially we observe the
biggest drop in hydrocarbons
will lend oil tanker so a drop of
75% of the diesel after three years is the
compost that won by tale with a
95% drop for the pit worn clothes
well we worked in cell on
had all cell with about a meter
cube each in six of those cells
we put our three components
biological in the test others nothing
it’s another control for
natural attenuation after five years
here are the first visible results
here are the first results easily
visible is at the level of appearance
our control and today the black
dark he was centering loudly while our
method is that it’s just giving a
single species that looks like a potting soil
but beware at the time while planting
your carrots the analyzes do reveal
that there is a 70% drop in all
petroleum hydrocarbons in this
treatment there this includes the big ones
heavy fraction between 50 carbon that
are viscous which is absolutely
hard to get rid of the control
we saw a decrease of 20%
the chlorinated compounds had gone to
inside the first year but
metals metals are
elements of the periodic table
so we can not degraded by cons
we can extract them accumulate this
we wanted to do with plants
so last summer we do not cure all
soils on the site and that’s in Asia tried
currently we analyze we will see if this
are good species benefit to
accumulations
now we see that the rate of
contamination has dropped but we are asking ourselves
the question is what theo cop
remaining petroleum hydrocarbons from
but she and she knows she’s for
to answer that we increased 150 g of
rye in each of the treatments in
laboratory we saw that 90% of the seeds
germinated in our treatment
ecosystems while 60% sprouted in
the control they were
significantly smaller this
result to his counterpart on the
field during the five years that the
the experiment lasted and many others
prophets weeding we can see that
the ecosystem treatment really
much more vegetation our soils
are hidden somewhere there no the
mushroom we saw the very net
versicolor have unfortunately not
survived
on the other hand since the last three
years we have a little mushroom of the
family of satires is threatened who
appears agen that appears but not in
our bins control so here are our
results demonstrate that by inspiring
of nature
one is ten years the local matters
residuals using species
native to the place it’s possible to
develop methods of treatment of
gold floors that are very effective
however, I would really like to emphasize
that we do not develop a method to the north
of the 60th parallel miracle method one can
then transposed all over the planet
exactly
it works it works unfortunately
not like that but what lies
everywhere on the planet it is this
tripartite relationship is also
anywhere on the planet via materials
and waste that is in fact
resources just waiting to be
valued and then talking about falls in
everything I pointed out that in nature
I do not like waste so I would like
invite you a moment to close your eyes
and visualize your trash bag
how many bags of trash that leaves
your personal home your job
if you do a little inventory
what proportions are actually
orange peel resources that
could compost the coffee grounds
to grow mushrooms
plastics that to be recycled or
turned into fuel of the species
Weird amalgam of metal plastic
it would be just to exist should
manufacture to be dismantled brief I
do not say that to make you feel guilty, but
just to invite you to wear a
a little more critical eye on all
resources around you that
just waiting to be valued for
from the ground by turning real
social structures filter the water
outside but especially especially for
bequeath a planet a little healthier
to your little little child thank you
[Applause]
[Music]
”
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