Launch Of 'Trash Wheel' In Panama Is A Milestone In The Global Fight To Stop Plastic Pollution
Along a dirty river, an ingenious garbage-swallowing machine and an inspired community offer hope to a world choking on floating plastic; in projects worldwide, nearly two million pounds of plastic trash have been collected and analyzed
Panama City (September 22, 2022) – A
giant semiautonomous trash interceptor powered by flowing
water and sunlight started eating plastic today on the Juan
Díaz River in Panama City, Panama. It is the most ambitious
attempt yet to rescue a long-contaminated waterway from the
curse of being a floating landfill, and a step forward in a
broader campaign to remove plastic from waterways in Latin
America, Africa, and Southeast Asia, and then analyze it so
that the root source of the pollution can be
addressed.
The machine, a "trash wheel"
affectionately nicknamed Wanda Díaz, is a project of the
environmental group Marea Verde, one of eight members of the
Clean Currents Coalition, a worldwide effort to subdue the
plague of ocean plastics, partly by capturing and removing
plastics at their source—polluted rivers. The Clean
Currents Coalition members are located in Panama, Mexico,
Jamaica, Ecuador, Kenya, Vietnam, Thailand and
Indonesia.
Worldwide, the Clean Currents
Coalition projects have reached the following
milestones:
- 1,808,526 lbs (820,334 kg) of plastic waste captured from rivers and diverted from the ocean.
- 78,466 people engaged in local communities through 335 outreach and educational events.
- 82% of
captured plastic recycled or repurposed:
- 40% PET (soda and water bottles, shampoo bottles, etc.)
- 23% HDPE (toys, food containers, trash bins, etc.)
- 12% PP (containers, toys, car parts, etc.)
"There's a living river under
all that trash, or there could be," said Douglas McCauley,
Director of the Benioff Ocean Science Laboratory at the
University of California, Santa Barbara, which advises the
Clean Currents Coalition. "The waters of the Juan Díaz once
nourished the local community, the nearby mangroves, and the
Pacific Ocean. We'll never restore rivers like this to
health unless we can start to get the plastic out—and keep
it out. And rescuing rivers from plastic is the key to
rescuing the oceans."
Trash wheels are
relatively new inventions that use booms, conveyor belts,
and solar panels to sweep floating plastic out of the water
for repurposing, recycling or incineration. A similar
machine, Mr.
Trash Wheel in Baltimore, has been clearing tons of
trash from that city's Inner Harbor since
2014.
Panama's Wanda Díaz is the last of the
Clean Currents Coalition's plastic capture devices to
be launched. The Coalition is piloting other technologies
besides trash wheels, including simple, low-cost systems
such as booms, barriers, and traps and more complicated
trash concentrators and harvesters. It is looking for what
works best in different places, hoping to create a diverse
array of options that can be replicated in other rivers and
waterways around the world.
While
the discussion around ending plastic pollution often focuses
on the ocean, rivers are a critical piece of the puzzle.
They wash up to 300 metric tons of plastic into the ocean
every hour. While estimates can vary, as of 2015, up to 12.7
million metric tons of plastic entered the ocean each year.
Plastic waste is much harder to recover once it disperses in
the ocean; rivers, acting as a bottleneck, provide a better
opportunity to turn off the tap of plastic—and trace it
back to its source.
“Technological
solutions can be highly effective, but they are just the
beginning,” said Molly Morse, Senior Manager at the
Benioff Ocean Science Laboratory and Director of the Clean
Currents Coalition. “The Coalition's larger aim is to
scale up — to use the collected data to change policies
and infrastructure around the world, to galvanize society
into finding ways to keep this nonbiodegradable pollution
out of rivers and, ultimately, the ocean. This means
engaging and educating local communities, investing in waste
management infrastructure and repurposing removed plastic,
and using data to influence policy and the private
sector.”
“Devices like trash wheels are not
magic bullets—they treat a symptom of the problem but are
not themselves a cure,” said Douglas McCauley.
“But they do, of course, remove tons of trash, while also
giving communities a tangible, highly visible reminder about
the problem of plastic waste. Beyond that, they generate
data that can be used to spur changes in plastic production,
use, and policy.”
About Benioff Ocean
Science Laboratory
Benioff Ocean Science
Laboratory (formerly Benioff Ocean Initiative), based at UC
Santa Barbara’s Marine Science Institute, merges science
and technology to improve ocean health. The laboratory was
brought to life in 2016 and expanded in 2022 through a $50
million gift from Marc and Lynne Benioff to promote
science-based ocean problem solving at UC Santa Barbara. For
more information about Benioff Ocean Science Laboratory,
please visit: https://bosl.ucsb.edu/.
For
more information about the Clean Currents Coalition, please
visit: https://cleancurrentscoalition.org/.
Clean
Currents Coalition Projects
ASOCIACIÓN
MAREA VERDE PANAMA: Río Juan Dïaz, ciudad de
Panamá, Panamá
The Juan Diaz River is one of the most
polluted rivers in Panama City and is part of the Panama Bay
Wildlife Refuge and Ramsar Site. In its watershed
lives an estimated population of more than 615,000 people in
15 boroughs. Through the Wanda Díaz project, Marea Verde
seeks to conserve the protected area and influence the
plastic waste management habits of the population, first in
the basin and then throughout the country. In addition, the
information derived from the use of Artificial Intelligence
and image recognition for the characterization of the waste
trapped by Wanda Díaz, will be used to propose public
policies on the management of single-use plastics throughout
the country.
WILDCOAST: Los
Laureles Canyon, a tributary of the Tijuana River,
Mexico
The Tijuana River Estuary acts as a filter for the
Pacific and is a critical sanctuary for biodiversity—home
to 29 species of fish, 29 species of reptiles and
amphibians, 370 species of bird, and 10 endangered species.
The Los Laureles Canyon trash boom, installed in 2020, has
captured more than 45,000 kilograms of plastic waste to
protect the estuary and determine how to address the root
cause of plastic pollution in the area. With the many tires
removed from the canyon, WILDCOAST has built riverside
playgrounds for the children in the local
community.
The Ocean Cleanup:
Kingston Harbour, Jamaica
Kingston Harbour
is the seventh largest natural harbor in the world but is
frequently clogged by solid waste running out of
Kingston—threatening coral reefs across the Caribbean.
Focused on cleaning up Kingston’s major drainage gullies,
The Ocean Cleanup installed Interceptor Barriers™ in three
gullies in 2021, with plans to scale up to ten gullies by
2023, to capture and sort plastics for recycling—at the
same time gathering data about where the plastic comes from
and how it can be stopped.
Ichthion:
Portoviejo River, Ecuador
Discharging directly
into the Pacific just east of the Galapagos Islands, the
Portoviejo River is a biodiversity hotspot and a major
source of water for surrounding cities and communities.
Ichthion’s Azure System™ has collected 1,102 kilograms
of plastic waste since 2021—revitalizing the river’s
ecosystem and minimizing the impacts of improper disposal,
particularly in rural areas. Ichthion is developing an
artificial intelligence (AI) system to autonomously collect
data on the removed plastic and is planning the installation
of a second plastic capture device on the Portoviejo
River.
Smart Villages + Chemolex:
Athi River, Nairobi
The Athi River, stretching 390
kilometers across Kenya, is home to hippopotamus,
crocodiles, and pythons, provides an essential source of
drinking and irrigation water; and empties into the Indian
Ocean—but it is under threat from plastic waste driven by
rapid urbanization. The Smart Villages + Chemolex project is
helping Kenya combat this threat and has captured more than
529,000 kilograms of plastic waste using ten trash booms
since 2020. The Smart Villages + Chemolex team is
repurposing the removed plastic to create strong and
resilient paving blocks used in gardens and riverside
beautification projects around Nairobi.
Ocean
Conservancy: Red River, Vietnam
The Red River in
Vietnam supports life across 50 Vietnamese districts and is
home to more than 23 million people at its delta—but it
has been ranked as the fourth largest emitter of plastic
waste globally. With one device installed in 2021 and the
other in 2022, Ocean Conservancy and local partner MCD have
captured 1,106 kilograms of plastic waste utilizing two
traps to capture and sort waste, providing helpful insight
into the types of polluting
plastic.
TerraCycle Global
Foundation: Lat Phrao Canal, Thailand
Based in
the Chao Phraya River, known as the “River of Kings,”
the Lat Phrao Canal is situated in a densely populated area
of Bangkok, Thailand. Since TerraCycle Global Foundation
installed three trash traps in 2020, more than 158,000
kilograms of plastic have been captured as part of overall
efforts to end plastic pollution, including the
organization’s assisting dozens of local schools with
implementing recycling programs.
Greeneration
Foundation: Citarum River, Indonesia
The Citarum
River in Indonesia supports the lives of more than 25
million people but is known as the “world’s most
polluted river,” often so full of waste its surface
isn’t visible. Greeneration Foundation, in partnership
with RiverRecycle and Waste4Change, aims to not only reduce
plastic waste in the river but also generate value from it
and prevent further waste from reaching the river. Since
installing their plastic capture device in 2022, the team
has already collected more than 73,000 kilograms of
plastic.