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Catchy 2, Allseas’ latest river waste collection system, was officially launched on Thursday 19 May. Installed under Rotterdam’s Erasmus Bridge, Catchy 2 collects plastics and other waste in the Nieuwe Maas before it can flow out into the North Sea. The system operates 24 hours a day, 7 days a week, collecting both floating and submerged waste and works entirely on tide and current.
During the opening ceremony, soprano Isabella Scholte performed an aria on the quayside next to the system, which lured litter to Catchy 2 like a siren from Greek mythology. “Working every day at sea, we are committed to the effort to clean our oceans by developing systems to collect waste in rivers and waterways before it can spread to our oceans”, says Edward Heerema, President and CEO of Allseas at the ceremony. “With Catchy 2 at this central location in Rotterdam, we are raising awareness that reducing plastic pollution in our rivers and oceans require a collective approach if they are to succeed.”
The Rotterdam Vice Mayor for Sustainability Arno Bonte welcomes the new plastic catcher with open arms. “Rotterdam is committed to making the North Sea plastic-free, together with residents and businesses. That starts with using less plastic and preventing plastic from ending up in the water. The final link in the chain are plastic catchers like Catchy 2, which collect plastics in our rivers before it ends up in the sea.”
How Catchy 2 works
The system comprises three key components: two floating booms, a collection cage and a floating frame. The booms guide waste floating on and below the surface into the collection cage. The collection cage is held in place by the floating frame. When full, the cage is emptied and the waste recycled. Collected plastic is used for the production of concrete blocks for quay protection.
Efforts to clean our rivers and oceans require a collective approach if they are to succeed. The development and deployment of Catchy 2 has received funding from the EU’s LIFE programme under LIFE17 ENV/NL/000339 and made possible thanks to a financial contribution from the Municipality of Rotterdam and contributions from a group of valued partners. By raising awareness and increasing public involvement, we can actively contribute to the mission to rid our rivers and oceans of plastic pollution.
Watch a video of the inauguration of Catchy 2.
“Catchy 2”, the new system under the Erasmusbrug in Rotterdam, has been installed. The system is situated in the continuous flow of the Nieuwe Maas River, unlike “Catchy” that is designed for deployment in a harbour.
“Catchy 2” is designed to collect plastic from the river in both ebb and flood with varying flow directions. Collected plastics remain in the system thanks to the clever non-return doors. The use of floaters allows adjustable mooring and provide the structural stability needed, but improve adaptability to different situations.
During the summer of 2021, Waddenhaven Terschelling approached Allseas to develop a trash removal system, based on the Catchy system.
The conditions in a recreational harbour are vastly different from the industrial waterways where the previous systems were placed. Because of this, the whole system had to be scaled down. This opened up the opportunity to revisit the entire system, and to optimize certain aspects of it. Aside from its small size, which allows transport in a normal car trailer, Catchy Mini’s main feature is the way it is emptied. Due to its smaller size, it is possible to empty the cage by hand in one single move. By emptying more often in smaller batches, the volume of the cage becomes more efficient as well. The trash is put in another container at the rear, where it can dry out, again making it more convenient to manage the waste.
Now we are ready for the next step of our project with a third system. The next generation, Catchy 2 is already in its final fabrication phase! This time, we have designed a system to work in a flowing river. The challenge will be the high currents and amounts of biomass. We also gave the system an attractive look inspired by a whale and the building materials are more sustainable; the collection cage is made out of steel to allow long-life stability and strength, and the floaters are made from high density polyethylene and the whale shape plates are made from 100% recycled materials.
Allseas Fabrication at Heijningen and Allseas Enschede are involved in the production. The system will be emptied by Hebo and transported by Geocycle to Holcim, where it will be co-processed in the cement production. The system will be installed in March 2022 under the Erasmusbridge in the centre of Rotterdam. The Gemeente Rotterdam, Port of Rotterdam and many partners and sponsors are collaborating with Allseas for this project. We will keep you updated on the next steps, stay tuned!
Port of Rotterdam is contributing to our project by subsidising the emptying of the system. Catchy 2 will be emptied from the water with a crane ship. The system will be installed in March 2022 and stay under the Erasmus Bridge for at least a year. Geocycle, provider of industrial, agricultural and municipal waste management services will post-process the collected litter.
We are ready for the next step of our project with the development of a third system. The next generation, Catchy 2 is already in its final design phase! This time, we have designed a system that is able to operate in a flowing river. The challenge will be the high currents and the large amounts of biomass. We gave the system an attractive new look inspired by a whale and the building materials are more sustainable; the collection cage will be made out of steel to allow long-life stability and strength, and the floaters will be made from recycled high density polyethylene.
Allseas Fabrication in Heijningen and the Allseas office in Enschede are involved in the production. We are also looking into efficient ways to empty the system, for which tests are ongoing. The system will be installed in March 2022 under the Erasmus Bridge in the centre of Rotterdam. The municipality of Rotterdam and Port of Rotterdam are both collaborating with Allseas for this project.
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