How Trash Goes From Garbage Cans to Landfills
Released on 05/23/2022
[Narrator] New York creates a lot of trash.
Every day NYC picks up 12,000 tons of refuse and recycling
through 2,000 miles of city per day.
So how does all this trash go from garbage bag
to its final destination?
I'm Ed Grayson, commissioner of New York City's
Department of Sanitation.
Now trash doesn't just walk onto a garbage truck
and today we're gonna take you step by step
on how that happens.
This is the journey of how one piece of trash
goes from here to here.
I just went to the guy on the corner, got my coffee cup,
I'm done with it.
90% of the time on that, if you don't have some place
that's going to take it as paper,
if you didn't have a way to find that wax paper,
that's just gonna be garbage.
We want you to source separate in your house.
So you're gonna have your regular garbage.
You're going to have your paper
and you're gonna have your metal glass and plastics.
[Narrator] Next, our coffee cup goes from bag to truck.
We have a pretty large fleet.
We host over 6,500 total pieces of fleet.
About half of that is heavy fleet used
for refuse and recycling and debris removal.
We're talking about the iconic large white 25 yard
collection truck that people see driving around.
Our reloading collecting trucks
are what's called a pusher packer.
There's a piston inside the truck
and it's pushing back the whole time.
That clam sweeper comes down
and it sweeps what's inside the hopper
up into the body of the truck.
That piston inside the truck is compacting
the garbage the entire time
and most of the trucks in New York City are gonna easily
hold between 10 and 12 tons of garbage
without even batting an eye.
[Narrator] And every day, those trucks
carrying those trash bags are maintaining
a unique route throughout the city.
Our coverage area is about 6,300 linear miles.
So at any given day of the week
we're trying to cover about 2,000 of those miles
and to do that we're going to dispatch
about 7,100 routes per week.
So a little over 1,200 a day.
We run a six day collection cycle.
The City of New York is five boroughs,
but it's 59 community boards inside the five boroughs
and DSNY has a garage for each of the 59 community boards.
Our main goal is to get the refuse and recycling route
scheduled between midnight,
so we'll start on the overnight and 4:00 PM.
This gives us 4:00 PM to the next midnight
to find out any places that for whatever reason
we had a service gap in.
Whether it was a blocked street, police activity,
you name it, that was blocking our ability to service
that area or service those block segments
and then what we use on the 4:00 PM to midnight shift
is going out there to totally mop up
what we didn't get on the first two watches.
What we're definitely trying to do is make sure
that we're routing efficiently.
That's the main goal because we wanna make sure
that we're always getting the latest set of GIS data.
Seeing how the overlays of our GPS performance is doing
to make sure that we number one, have every street routed,
routed effectively, routed efficiently
so we can complete our routes on time.
[Narrator] Next step, transfer station.
For the New York City Department of Sanitation,
we have five transfer stations.
For our marine transfer stations
where we bring it to the station
and then the final disposition's gonna go on a barge
that takes it to either a landfill operation
and or a waste energy facility and then lastly,
our fifth operation is in the Borough of Staten Island
and that is a rail transfer station.
A lot of people don't realize
none of the landfills are here.
Some of it goes up north to northern parts of New York.
Some of it goes down the I-95 corridor.
So we're going to Jersey, we're going to Ohio,
we're going to Virginia.
[Narrator] And so what does that mean
for our bodega coffee cup?
Our bodega coffee cup is probably gonna end up
in a landfill.
[Narrator] In NYC anywhere from 60% to 70% of trash
is still going to landfills.
So what exactly is the future of sanitation?
How can we prevent more waste from going into landfills?
One way is through anaerobic digestion.
This is using basically a giant stomach
and you're gonna put your organic material in there.
They're taking this wet waste and this wet organic waste
and some food scraps and some food organics
and other compostable organic material
and they're gonna add it into basically a giant digester
which is full of microbes and those microbes
are gonna break down.
Some of the other new emerging technologies
that are coming down the pipe are waste de-volumizers
and waste hydrators and what they'll do
is they'll ring all the water out of it.
Does a couple things.
Number one, speeds up the digestion of that
to make it more nutrient dense compost
and or takes up some of the weight in some of the room.
So you're getting a twofold bang for that.
You're getting less greenhouse gases that could be emitted
because it's just not as much material
and more importantly better chance to turn it
into reusable compost depending on what your next step is.
[jazzy music]
And there'll always be a role for the Sanitation Department.
We're gonna come, we're gonna keep your streets clean
and we're gonna come and get you all those recyclables
that are at the curb.
We don't want to come pick up your garbage.
We want to pick up all the things you did right
at the curb every day.
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