Nowadays, Marine litter has become one of the serious environmental pollution problems. Ocean Purification, a large system for cleaning up ocean plastic waste, set off from San Francisco in the United States on Tuesday towed by a ship to a destination more than 440km away -- where it will have a trial run for two weeks before being towed to the Great Pacific Garbage Patch to clean up the vast amount of plastic waste there.

The Ocean Clean system floats on a 600m-long U-shaped tube, like an artificial shoreline, beneath a three-metre-high barrier that traps and traps plastic waste and allows Marine life to pass underneath.

According to Bojan Slater, the 24-year-old Dutch designer of the Clean Ocean system, the plan is to collect the trash on a boat every few months and take it to land for disposal -- he expects the first collection to arrive in a few months; If the trial runs are successful, they will release about 60 of the systems into the sea.

By his calculations, the "Clean Ocean" system could clear half of the Great Pacific Garbage Patch in five years -- the system is made of materials that are said to resist abrasion and last in water for 20 years.

Some environmentalists, however, are skeptical of Slater's goal of cleaning up the ocean. After all, while the trash in the ocean is being removed, more plastic waste will be flowing from the land into the ocean.

And Slater admits that an important step in tackling Marine litter is to clean up the garbage on land and close the "valve" that allows plastic waste to flow into the ocean.

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