Bioplastics

Overview

Plastics are essential to modern life, but most are produced from nonrenewable petroleum resources and can persist in the environment for hundreds of years. At the Sustainable Waste-to-Bioproducts Engineering Center (SWBEC), researchers are developing sustainable bioplastics derived from algae and other renewable biological resources that offer environmentally friendly alternatives to conventional plastics.

By recovering carbon, nutrients, and biomass from municipal, agricultural, industrial, and food processing waste streams, SWBEC transforms biological resources into renewable materials that support sustainable manufacturing while reducing waste and environmental impacts.

Through interdisciplinary research, the center is helping create the next generation of biodegradable, bio-based materials that contribute to a more sustainable circular bioeconomy.

Caption: Algae grown using recovered nutrients provide renewable biomass for the development of sustainable bioplastics and other high-value bioproducts.

From Waste to Renewable Materials

Many waste streams contain valuable carbon and nutrients that can be recovered instead of discarded.

SWBEC develops biological and engineering processes that transform these resources into renewable feedstocks for bioplastic production. By integrating wastewater treatment, nutrient recovery, and biomass cultivation, researchers create opportunities to convert waste into valuable materials while improving environmental performance.

Rather than relying solely on fossil resources, these renewable biological feedstocks provide a sustainable pathway for manufacturing environmentally friendly products.

Resource recovery flow diagram: Wastewater / Organic Waste → Nutrient Recovery → Biomass Production → Bioplastic Feedstocks → Sustainable Products

Algae as a Renewable Feedstock

Algae are one of the most promising renewable resources for producing next-generation bioplastics.

They grow rapidly, efficiently capture nutrients from wastewater, and generate biomass that can be converted into valuable polymer feedstocks. Because algae can be cultivated using nutrient-rich waste streams, they do not compete with food crops for productive farmland or freshwater resources.

SWBEC investigates algae cultivation systems that simultaneously recover nutrients, improve water quality, and produce biomass suitable for renewable material manufacturing. This integrated approach allows a single biological process to generate multiple environmental and economic benefits.

Caption: Algae cultivated through biological treatment systems provide renewable biomass for developing sustainable bioplastics and other bio-based products.

Engineering Sustainable Bioplastics

Developing renewable plastics requires more than simply growing biomass.

SWBEC combines biological engineering, environmental engineering, microbiology, and materials science to investigate how renewable biological resources can be converted into durable, biodegradable materials suitable for a variety of applications.

Researchers evaluate biological treatment systems, algae cultivation technologies, and mixed microbial communities to maximize biomass production while improving process efficiency and reducing environmental impacts.

Current research focuses on integrating renewable material production with wastewater treatment and resource recovery, allowing multiple valuable products to be generated from a single waste stream.

Caption: Researchers evaluate renewable biological feedstocks for developing environmentally friendly materials.

Supporting a Circular Bioeconomy

Unlike conventional plastics that rely on fossil resources, bio-based plastics begin with renewable biological materials that continuously cycle through natural systems.

SWBEC develops technologies that recover carbon and nutrients from waste streams and transform them into new products, reducing the demand for virgin raw materials while minimizing waste generation.

This circular approach supports more sustainable manufacturing by recovering resources that would otherwise be discarded and returning them to productive use through renewable biological processes.

Circular Bioeconomy Diagram Organic Waste → Resource Recovery → Biomass → Bioplastics → Product Use → Recovery → Biomass

Environmental Benefits

Bio-based plastics offer significant environmental advantages over many conventional petroleum-derived materials.

By using renewable biological feedstocks, these materials have the potential to reduce dependence on fossil resources, lower greenhouse gas emissions, improve resource efficiency, and support more sustainable manufacturing practices.

Because many bioplastics are designed to be biodegradable under appropriate conditions, they also provide opportunities to reduce long-term environmental impacts while supporting responsible material management.

At SWBEC, research focuses on developing practical solutions that balance environmental performance, material functionality, and economic feasibility.

Comparison photograph showing algae biomass alongside conventional plastic pellets or biodegradable material samples.

From Research to Real-World Applications

SWBEC collaborates with industry partners, government agencies, municipalities, and academic researchers to advance renewable material technologies from laboratory research to pilot-scale implementation.

Researchers evaluate technical performance, environmental benefits, and economic feasibility to help ensure that renewable material technologies can be successfully implemented beyond the laboratory.

Students play an active role throughout the research process by designing experiments, operating pilot-scale systems, analyzing material properties, and helping develop technologies that contribute to a more sustainable manufacturing future.

Caption: Pilot-scale research bridges laboratory discoveries with real-world renewable material applications.

Advancing Sustainable Materials

Bioplastics research is part of SWBEC's broader mission to transform waste streams into valuable bioproducts through engineering innovation and interdisciplinary collaboration.

By recovering renewable biological resources and developing environmentally responsible manufacturing technologies, SWBEC is helping create materials that support cleaner production, reduce environmental impacts, and strengthen the transition toward a sustainable circular bioeconomy.

Current Research Areas

• Algae-based bioplastics
• Renewable polymer feedstocks
• Biomass valorization
• Wastewater resource recovery
• Algae cultivation technologies
• Mixed microbial systems
• Integrated biological treatment systems
• Sustainable materials engineering
• Bio-based manufacturing
• Pilot-scale bioproduct development
• Circular bioeconomy systems
• Technology transfer and commercialization