@the_great_bubble_barrier_r
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Although there have been large scale and much publicised attempts to clear plastic from the ocean, such as the Ocean Cleanup project, a much more efficient method is to catch it before it even gets that far. A Dutch startup has now developed a simple, yet effective method of doing just that. The Amsterdam-based Great Bubble Barrier has, as the name suggests, harnessed the power of bubbles to catch plastic flowing down canals and rivers. The idea itself is relatively straightforward and builds upon methods used by the oil and dredging industry. Simply put, a perforated rubber tube is run along the bottom of waterways, which then has ambient air pumped through it. This rises to the surface as bubbles which catch and block even small pieces of plastic making its way downriver. Due to the diagonal placement of the tube, the plastic waste is pushed to the edge of the waterway where it is then caught in a catchment device. Currently, the pipes can be laid at a depth of up to seven metres, which is more than sufficient for many European canals and waterways. However, the team is looking at going even deeper. The design of the Bubble Barrier means it can be left 24/7 to do its work with only minimal maintenance, while, in ideal weather situations the air pump itself can be powered by renewable energy. The bubbles also cause no interference with normal river traffic or aquatic life. In fact, according to the Great Bubble Barrier, by pumping in more air, the dissolved oxygen content of the river is increased, promoting algae growth and benefitting the aquatic ecosystem. In any case, the barriers also include ‘fish passage sections’ in each of its designs. Of course, each riverway is different, and The Great Bubble Barrier aims to work with local governments and authorities to tailor its barrier and the catchment devices to the specific flow and details of the river in question. https://en.reset.org/dutch-startup-uses-power-bubbles-create-plastic-catching-barriers-06182021/ https://m.facebook.com/watch/?v=1578800462263049&_rdr
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The Great Bubble Barrier uses bubbles to push plastic and other debris in rivers to the surface and collect it before it can reach the sea. Air is pumped from a tube at the bottom, stopping waste to cross the wall of bubbles at the surface while also using the flow of the water to guide it into a collector where it can be disposed properly. The system is developed by Scientists in the Netherlands and is already successfully used in Amsterdam. Hopefully this smart & relatively simple method can be used to clean and keep other waterways around the world free from plastic pollution. Read more: https://www.cnn.com/2021/06/08/europe/bubble-barrier-sea-c2e-spc-intl/index.html
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Although at first it was thought that plastic pollution was a faraway problem floating out in the middle of the ocean, it is now clear that plastic is everywhere, including in the water we drink and the air we breathe. Plastic carried by water flows towards the sea and causes plastic pollution to reach the oceans. Rivers, or canals for example, transport a lot of plastic to the sea. To stop waste from floating from the canals to the rivers and seas, The Great Bubble Barrier came up with an idea. They created a bubble curtain by pumping air through a perforated tube on the bottom of the waterway. The bubble curtain creates an upward current which directs the plastics to the surface. By placing the Bubble Barrier diagonally in the river, the natural flow will push the plastic waste to the side and into the catchment system. From here it will be removed from the water for processing. Read more about their concept here and their findings already with the Bubble Barrier in Amsterdam 👉 https://thegreatbubblebarrier.com/technology/
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