Florida Researchers Study Sargassum Biochar for Water

The EPA-funded project investigates if sargassum can be converted into filtration material for local oyster beds.

Updated on Oct. 21, 2026 in Environmental

Bold vector editorial illustration of a porous carbon biochar fragment sitting on an oyster shell surrounded by dried seaweed strands.
University of Florida researchers are testing sargassum-derived biochar as a filtration substrate to improve water quality in Florida's coastal oyster habitats. AI Illustration. Upload story photo >

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Should coastal communities prioritize converting seaweed waste into biochar for environmental cleanup?

The University of Florida has partnered with Myno Carbon to research the conversion of coastal sargassum into biochar for water quality improvement. Funded by the U.S. Environmental Protection Agency Region 4, the project is currently in the research stage.

Why it matters

This research seeks to turn the environmental and economic burden of massive sargassum blooms into a functional tool for water decontamination in oyster habitats. It addresses the growing coastal challenges posed by record-high sargassum accumulations observed in the satellite record.

Researchers are utilizing pyrolysis—a thermal decomposition process in the absence of oxygen—to convert harvested sargassum into stable, carbon-rich biochar. The project aims to evaluate this material for its capacity to immobilize contaminants within local oyster beds.

The players

University of Florida

A public research university managing the investigation into converting marine biomass into filtration materials.

Myno Carbon

A carbon technology company focused on biochar production and carbon removal solutions.

U.S. Environmental Protection Agency Region 4

The federal regulatory body providing the funding for this coastal water quality research project.

The details

The process uses pyrolysis to heat the harvested biomass, transforming it into biochar, a solid material primarily composed of carbon. By applying this substrate to oyster beds, researchers intend to test if the material can effectively filter or trap pollutants. This mechanism aims to leverage the physical properties of the carbon structure to improve water quality in delicate marine environments.

Timeline

  1. 2025: This year holds the record for the largest sargassum volume in the satellite record.

  2. 2026: This year saw the second-largest sargassum volume in the satellite record.

The Tech Race

This project positions biochar as a leading material in the competitive race to find scalable, natural-based filtration solutions for coastal ecosystems. It follows recent efforts to integrate carbon sequestration products into municipal and environmental infrastructure.

The project serves as a research-stage pilot to determine if processed seaweed can mitigate pollution in Florida coastal areas. Future implementation for local oyster farmers or water managers depends on the success of these ongoing immobilization trials.

The takeaway

This project marks a pivot toward using recurring massive sargassum blooms as a resource rather than just a waste management hurdle. Residents and stakeholders should watch for upcoming performance reports on the biochar's ability to successfully immobilize contaminants in real-world test beds.

Further reading

Learn more about the latest climate and coastal mitigation strategies in Environmental.

Source note: This article includes information reported by Renewable Carbon News.

Live Poll

Should coastal communities prioritize converting seaweed waste into biochar for environmental cleanup?