September 1, 2019
Ocean Cleanup Runs into "Overtopping" Probelm
Ocean Cleanup Runs into "Overtopping" Probelm
The Ocean Cleanup system has gone through numerous revisions since its inception. Lately, they are encountering an issue called "overtopping" where plastic is getting stuck between the main HDPE pipe and the screen that nets all the plastic. They are deeming this problem area "the twilight zone". The original cleanup system was much simpler where it was only a pipe and a polyester screen. Unfortunately, that system broke after two months of trials and a stress crack. The Ocean Cleanup crew managed to fix this issue by adding a cork line to bring the screen forward and prevent slack. However, this has created an odd space where plastic bits are getting trapped. The crew is hoping that this is the final problem to solve before scaling up.
You can read more about the butt fusion joining used for Ocean Cleanup's construction here.
You can read more about the butt fusion joining used for Ocean Cleanup's construction here.
September 2, 2019
Giant HDPE Pipe Being Installed Instead of Steel in Outfall Project
Giant HDPE Pipe Being Installed Instead of Steel in Outfall Project
Opening in Fall 2020, a new wastewater treatment facility will open in Vancouver Island, British Columbia. It will utilize the largest pressure pipe in North America and will help treat water from nearly 413,000 people after they have used the shower, sink, laundry machines, etc. This giant pipe is made from HDPE with an OD of 7.5 feet! This 1.2 mile long pipe (at a depth of 197 feet) will send treated water back out into the Victoria Harbor. The pipe also has some massive fusion joints on it which is a feat all by itself. It is reported as the largest solid wall HDPE pressure pipe to be joined. Agru America made this pipe in their XXL manufacturing location in Charleston, S.C and says that HDPE is a much better choice for this project due to its life expectancy, resistance to salt water, and ability to remain functional during natural disasters such as earthquakes. It is truly amazing how far the plastic pipe industry has come along.
You can read more about this 121 joint 7.5 feet OD HDPE pipe project here.
You can read more about this 121 joint 7.5 feet OD HDPE pipe project here.
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