A 3D-printed artificial reef developed to restore oyster habitats has won the James Dyson Award for Hong Kong.
Developed by Dean Chan, the reef restoration technology, dubbed “Reef of Hope,” is designed to replace conventional reef restoration methods.
The James Dyson Award, operated by the James Dyson Foundation, was created to support inventions designed to solve a wide array of problems. The competition has national- and global-level awards, with Reef of Hope winning the national award for Hong Kong.
Chan said the Reef of Hope is designed to actively support and sustain marine life and would replace the concrete blocks and oyster bags that are currently used to restore oyster habitats. Chan said the previous methods of restoration typically prioritized bulk and stability and didn’t have effectiveness in mind.
“To address these shortcomings for current solutions, Reef of Hope is designed and engineered to actively support and sustain marine life,” the James Dyson Award said in a release announcing the award. “Its innovative topological structure features a curved, porous geometry that enhances stability in water, improves material efficiency, and optimizes water flow.”
The Reef of Hope uses biodegradable material infused with calcium carbonate from seashells, marine-safe minerals, and a bioactive coating that Chan said is designed to promote oyster settlement.
Chan said he tested the reef in field trials along the shoreline in Hong Kong, and those trials showed environmental benefits over existing methods of restoring oyster beds. During the trial, oyster settlement rates on the Reef of Hope were three times higher than existing methods, and within one month, the newly created reef had attracted shrimp, crabs, fish, and algae.
"Winning the James Dyson Award is thrilling,” Chan said. "It's not just about recognition; it's a platform to raise awareness about oyster reef restoration and marine conservation, amplifying my mission to protect these vital ecosystems."
Reef of Hope will receive GBP 5,000 (USD 6,700, EUR 5,700) from the James Dyson Award, which it said will help support its next phase of development.
