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After completing the redesign last summer and passing third-party reviews, this is the design that is currently being constructed and is set to head into the Great Pacific Garbage Patch two months from now.
Boyan Slat, theOceancleanup.com, Updates
After 273 scale model tests, six at-sea prototypes, mapping the patch with 30 vessels and an airplane, and going through several technology iterations, we are now ready to put the first ocean cleanup system to the test, launching from San Francisco on September 8th.
"We are truly proud to be supporting the installation of the Ocean Cleanup's first system," said Steen S. Karstensen, CEO of Maersk Supply Service. "Large towing operations have been a part of Maersk Supply Service's work-scope for decades. It is rewarding to see that our marine capabilities can be utilized within new segments, and to support solving such an important environmental issue."
Departing on September 8, 2018, the system will be delivered 250 nautical miles offshore for a two [...] week sea trial before towage to the final deployment location at the GPGP.
Maersk Supply Service will in addition to the towing and installation, be monitoring The Ocean Cleanup's System 001. Total duration of the campaign is expected to be 60 days.
After 5 years of research, engineering and testing, we launched the world’s first ocean cleanup system [System 001, “Wilson" (same source)] from San Francisco Bay, marking the start of the cleanup. The system is now on its way to an intermediary test stop, 250-350 nautical miles offshore for a 2-week trial before continuing its journey toward the Great Pacific Garbage Patch, 1,200 nautical miles offshore, to start the cleanup.
Here's how it works:
1. The catalyst is put onto the plastic.
2. Then the plastic is put into a "test tube" containing a concentrated solution of sodium hydroxide (lye).
3. The tube is put in the sun.
4. The plastic decomposes into small organic molecules and hydrogen is generated.
The storm, one of Hong Kong’s strongest in recent years, left behind a trail of destruction of plastic and polystyrene foam in parts of the territory.
The clean-up operation began on Monday, with massive piles of plastic waste pictured in Heng Fa Chuen, on the east of Hong Kong Island.
originally posted by: TEOTWAWKIAIFF
I really do wish success to the 60-day run of System-001!! And to all of mankind (and womankind, and all the PC laws I just broke by gender identifying the whole world, sorry. The nerve!), we are so close! Wind, solar, hydrogen, are being put to use. Fusion research continues moving forward (the world record for non-destructive magnetic fields was created and is a whole order of magnitude stronger than anything before), just a bit more time and we will cross the finish line. All of human kind. And then we can get on with being kind humans!
About the Checklist
1. U-shape installation
The u-shape is integral to conduct many of our tests and this will be the first time the system is ever in its intended shape. To do this, we must connect the four closing lines inside the system.
2. Sufficient speed through water
We will test the system’s speed to ensure that it does move faster than the plastic. This detail is essential for capturing plastic within the system.
3. Ability to reorient when wind/wave direction changes
For these tests we will tow the system in various directions against the wind (45, 90 and 180 degrees). When facing different directions, the system should reposition itself facing the plastic again.
4. Effective span in steady state
The width of the system will fluctuate based on the conditions of the ocean, but it must stay in a desirable range in order for it to capture and retain plastic.
5. No significant damage by the end of the test
We want to ensure the system can withstand the conditions of the ocean before we tow it all the way to the patch. We will perform checks at the end of the trials for damage. If we observe severe damage, we will then assess if this can be remedied on or offshore.
We will maintain the u-shape for two weeks. During this time, the system will continue to undergo various additional tests. The crew has already begun testing the system's orientation in different wind directions and aims to complete these tests tomorrow.
With one down and four to go, our goal is to achieve all five of these objectives in the next two weeks. We still have much to learn, so we are taking this time to understand as much as possible. If all items can be checked off, only then can we give the go-ahead to begin the journey to the Great Pacific Garbage Patch. Stay tuned.
The key part of the abstract is this bit:
plastic concentrations drop exponentially with water depth, and decay rates decrease with increasing Beaufort number. Furthermore, smaller pieces presented lower rise velocities and were more susceptible to vertical transport. This resulted in higher depth decays of plastic mass concentration (milligrams/m^3) than numerical concentration (pieces/m^3).
Julia Reisser et al., - The vertical distribution of buoyant plastics at sea: an observational study in the North Atlantic Gyre
System 001 is back in towing config and is on it's way to the Great Pacific Garbage Patch right now
With the system now installed in the Great Pacific Garbage Patch, the team will soon get a better handle on how efficient it truly is in collecting plastic waste and its impacts on marine species. All going to plan, the team hopes to deploy a fleet of 60 systems over the coming two years, which, according to modeling by the Project, could remove half of the plastic in the patch within five years. The first plastics are expected to be returned to land within six months.
originally posted by: TEOTWAWKIAIFF
The first plastics are expected to be returned to land within six months.
newatlas.com, Oct. 17, 2018 - Ocean Cleanup system installed and ready for work at the Great Pacific Garbage Patch.
The Environment Agency (EA) has set up a team of investigators, including three retired police officers, in an attempt to deal with complaints that organised criminals and firms are abusing the system.
Six UK exporters of plastic waste have had their licences suspended or cancelled in the last three months, according to EA data. One firm has had 57 containers of plastic waste stopped at UK ports in the last three years due to concerns over contamination of waste.
Allegations that the agency is understood to be investigating include:
Exporters are falsely claiming for tens of thousands of tonnes of plastic waste which might not exist
UK plastic waste is not being recycled and is being left to leak into rivers and oceans
Illegal shipments of plastic waste are being routed to the Far East via the Netherlands
UK firms with serial offences of shipping contaminated waste are being allowed to continue exporting.
UK households and businesses used 11m tonnes of packaging last year, according to government figures. Two-thirds of our plastic packaging waste is exported by an export industry which was worth more than £50m last year.
The exporters make millions by charging retailers and manufacturers a fluctuating tonnage rate for plastic waste recovery notes – currently £60 a tonne. Retailers buy these plastic export recovery notes – Perns – to satisfy the government they are contributing something to recycling plastic packaging waste.