Exploring the Intersection of Art, Science, and Marine Conservation Using Algal Biomass Waste

Abstract

Algal Turf Scrubbers (ATS) are designed to remediate polluted waters where wastewater and agricultural runoff have caused eutrophication and the non-point source of excess nutrients cannot be determined. These ATS systems improve water quality by encouraging algal growth on flow-way surfaces rather than forming harmful blooms in open waters. Excessive nutrients from the water accumulate in the flow-way’s lawn of algae, and unless the algal biomass is repurposed, it is discarded in landfills as waste. In this article, we outline a simple methodology to utilize waste algal biomass as a novel source of clay. Raw algal waste contains minerals which can be used as a sustainable and more environmentally-friendly alternative to industrially-mined clays. When algae-based clay sculptures are kiln fired, they resemble terracotta brick in their color, durability, and porosity. In addition to the aesthetic and artistic potential of algae-based clay, this medium provides an excellent opportunity for educators to engage students with hands-on crafting activities while learning about eutrophication and environmental restoration of aquatic habitats.

Keywords

• algal turf scrubber
• artificial reefs
• coastal conservation
• ceramic art
• marine education
• marine sustainability