--- title: "Bio-Based Media for Micro- and Nanoplastics Removal" id: "10542" type: "post" slug: "bio-based-media-for-micro-and-nanoplastics-removal" published_at: "2026-01-27T14:35:57+00:00" modified_at: "2026-01-26T16:57:06+00:00" url: "https://www.plasticsengineering.org/2026/01/bio-based-media-for-micro-and-nanoplastics-removal-010542/" markdown_url: "https://www.plasticsengineering.org/2026/01/bio-based-media-for-micro-and-nanoplastics-removal-010542.md" excerpt: "Green coagulation and nanocellulose foams improve microplastic removal, yet integration challenges include clogging and media handling." taxonomy_category: - "Bioplastics" - "Education & Training" - "Foam Processing" - "Industry" - "Materials" - "Microplastics" - "People" - "Process" - "Resins" - "Sustainability" - "Testing & Analysis" - "Trending" taxonomy_post_tag: - "alginate bioflocculant" - "biopolymer flocculants" - "cationic starch microplastic removal" - "chitosan coagulation" - "coagulation flocculation microplastics" - "EU Urban Wastewater Treatment Directive microplastics" - "filtration clogging wastewater" - "lignin water treatment" - "nanocellulose water treatment" - "nanoplastics removal" - "Pickering foam nanocellulose" - "wastewater treatment plant microplastics" --- [Home](https://www.plasticsengineering.org/) » [News](https://www.plasticsengineering.org/news/) » [Trending](https://www.plasticsengineering.org/c/trending/) » [Microplastics](https://www.plasticsengineering.org/c/trending/microplastics/) » Bio-Based Media for Micro- and Nanoplastics Removal # Bio-Based Media for Micro- and Nanoplastics Removal Scaling up bio-based solutions may play a key role in removing microplastics from wastewater.### Green coagulation and nanocellulose foams improve microplastic removal, yet integration challenges include clogging and media handling. Microplastics are persistent contaminants in wastewater treatment systems, and these systems are significant microplastic entry points into the environment. Traditional treatment methods, such as filtration, coagulation, and sedimentation, have significant limitations for removing nanoscale microplastics. **You can also read:** [PFAS Contamination Tests the Limits of UK Policy.](https://www.plasticsengineering.org/2025/11/pfas-contamination-tests-the-limits-of-uk-policy-010173/) Developing [biopolymer- and nanocellulose-based systems](https://pubs.rsc.org/en/content/articlehtml/2025/su/d5su00634a) for managing microplastics in wastewater is an emerging area of research. As this research continues, policy will play a key role in ensuring new solutions are both practical and effective. ## Nanocellulose for Capturing Pollutants Nanocellulose can serve as a substrate for affordable, ecologically sound water-treatment media. This abundant, biodegradable biopolymer has a high surface area, which is beneficial to microplastic absorption. Pickering foam composed of nanocellulose can further increase its specific surface area through its numerous pores. Nanocellulose remediates microplastic contamination in water through adsorption, filtration, aggregation, and surface modification. Figure courtesy of [Microplastic removal from wastewater through biopolymer and nanocellulose-based green technologies.](https://pubs.rsc.org/en/content/articlehtml/2025/su/d5su00634a) ## Biopolymers: Renewable Microplastic Removal Biopolymers, including chitosan, alginate, starch, polylactic acid, polysaccharides, and lignin, can also remove microplastics in wastewater. Chitosan and polysaccharides, for example, are both bioflocculants. These materials promote microplastic aggregation, facilitating sedimentation or filtration for removal. Research has demonstrated that cationically modified starch effectively removes microplastics across a range of water conditions. Starch can also destabilize microplastic suspensions, allowing them to aggregate and form larger, easily removable flocs. Coagulation and flocculation are important processes for removing microplastics from wastewater. Figure courtesy of [Microplastic removal from wastewater through biopolymer and nanocellulose-based green technologies.](https://pubs.rsc.org/en/content/articlehtml/2025/su/d5su00634a) ## **Bolstering Bio-Based Solutions Through Regulations** Laws and regulations shape how nations mitigate microplastic contamination. In the European Union, the recently revised [Urban Wastewater Treatment Directive (TA/2019/0071)](https://eur-lex.europa.eu/eli/dir/2024/3019/oj) provides guidance on treating urban wastewater, including microplastics. The European Union has broadened manufacturer responsibility and recycling standards for its members, and other regulatory bodies have followed suit. Additionally, ecolabeling schemes, such as the EU Ecolabel and Blue Angel, promote sustainable technology awareness and adoption. Nanocellulose and biopolymer-based microplastic removal systems use renewable resources and are biodegradable. These systems minimize ecological toxicity risks and long-term pollution. By optimizing their production, manufacturers can support circular economy goals, while benefiting from EU-level funding schemes and green procurement initiatives. ## **Adapting Existing Systems to Green Tech** The challenge of implementing novel filtration technologies is their integration with existing wastewater treatment systems. Clogging, increased operational complexity, and material management and recycling are factors for consideration. Further research exploring system modularity may allow additional filtration while allowing for flexibility. Scalability, durability, and long-term performance monitoring will be vital for large-scale implementations for enhanced wastewater management. High costs, technological limitations, and regulatory hurdles currently limit use of nanocellulose and biopolymers in wastewater treatment. Policy linking wastewater management with solid waste management may bolster acceptance of these technologies. The enforcement of recycling standards, microplastic regulation, and increased public awareness can help overcome these challenges. By **[Julienne Smith](https://www.plasticsengineering.org/author/juliennesmith/)** | January 27, 2026 ##### [Julienne Smith](https://www.plasticsengineering.org/author/juliennesmith/) [+ postsBio ⮌](#) - Julienne Smith [Nanocomposite Films from Car Bumper Waste](https://www.plasticsengineering.org/2026/04/nanocomposite-films-from-car-bumper-waste-011041/) - Julienne Smith [Emerging Markets for Polyolefins in the Solar Industry](https://www.plasticsengineering.org/2026/04/emerging-markets-for-polyolefins-in-the-solar-industry-011128/) - Julienne Smith [Artificial Rattan: Furniture from PolyAl](https://www.plasticsengineering.org/2026/04/artificial-rattan-furniture-from-polyal-011037/) - Julienne Smith [Advancing Sustainable Printed Electronics](https://www.plasticsengineering.org/2026/04/advancing-sustainable-printed-electronics-011032/) ### Other posts you could read [April 10, 2026In Vivo Plastic Waste Upcycling](https://www.plasticsengineering.org/2026/04/in-vivo-plastic-waste-upcycling-010935/) [April 8, 2026Recycled Carbon Fiber from Automotive Waste](https://www.plasticsengineering.org/2026/04/recycled-carbon-fiber-from-automotive-waste-010930/) [April 21, 2026Flame-Resistant Polymers for Space Safety and Aerospace Use](https://www.plasticsengineering.org/2026/04/flame-resistant-polymers-for-space-safety-and-aerospace-use-011162/) [April 6, 2026Thermotropic LCEs Power Soft Robotics](https://www.plasticsengineering.org/2026/04/thermotropic-lces-power-soft-robotics-010984/) [April 3, 2026Digitalization and Simulation: Redefining What is Possible](https://www.plasticsengineering.org/2026/04/digitalization-and-simulation-redefining-what-is-possible-010981/) [April 2, 2026Circular Automotive – IKV Colloquium Drives Real Change](https://www.plasticsengineering.org/2026/04/circular-automotive-ikv-colloquium-drives-real-change-010990/) [April 23, 2026Conductive Polymers Revolutionize Fuel Cell Plates](https://www.plasticsengineering.org/2026/04/conductive-polymers-revolutionize-fuel-cell-plates-011057/) [April 20, 2026Real-Time Melt Monitoring in Extrusion and Injection Molding](https://www.plasticsengineering.org/2026/04/real-time-melt-monitoring-in-extrusion-and-injection-molding-011167/) ## Share Your Thoughts [Cancel reply](/2026/01/bio-based-media-for-micro-and-nanoplastics-removal-010542/#respond) - [https://twitter.com/share?url=https://www.plasticsengineering.org/?p=10542&text=Bio-Based+Media+for+Micro-+and+Nanoplastics+Removal&via=Plastics_Mag](https://twitter.com/share?url=https://www.plasticsengineering.org/?p=10542&text=Bio-Based+Media+for+Micro-+and+Nanoplastics+Removal&via=Plastics_Mag) - [https://www.facebook.com/sharer.php?u=https://www.plasticsengineering.org/?p=10542&t=Bio-Based+Media+for+Micro-+and+Nanoplastics+Removal](https://www.facebook.com/sharer.php?u=https://www.plasticsengineering.org/?p=10542&t=Bio-Based+Media+for+Micro-+and+Nanoplastics+Removal) - [https://www.linkedin.com/shareArticle?mini=true&url=https://www.plasticsengineering.org/?p=10542&title=Bio-Based%20Media%20for%20Micro-%20and%20Nanoplastics%20Removal&summary=Green+coagulation+and+nanocellulose+foams+improve+microplastic+removal%2C+yet+integration+challenges+include+clogging+and+media+handling.&source=Plastics+Engineering](https://www.linkedin.com/shareArticle?mini=true&url=https://www.plasticsengineering.org/?p=10542&title=Bio-Based%20Media%20for%20Micro-%20and%20Nanoplastics%20Removal&summary=Green+coagulation+and+nanocellulose+foams+improve+microplastic+removal%2C+yet+integration+challenges+include+clogging+and+media+handling.&source=Plastics+Engineering) - [https://www.reddit.com/submit?url=https://www.plasticsengineering.org/?p=10542&title=Bio-Based+Media+for+Micro-+and+Nanoplastics+Removal](https://www.reddit.com/submit?url=https://www.plasticsengineering.org/?p=10542&title=Bio-Based+Media+for+Micro-+and+Nanoplastics+Removal) - [/cdn-cgi/l/email-protection#9ba4e8eef9f1fef8efa6cbf7fae8eff2f8e8bbdef5fcf2f5fefee9f2f5fcbbb6bbd9f2f4b6d9fae8feffbbd6fefff2fabbfdf4e9bbd6f2f8e9f4b6bbfaf5ffbbd5faf5f4ebf7fae8eff2f8e8bbc9fef6f4edfaf7bdf9f4ffe2a6f3efefebe8a1b4b4ecececb5ebf7fae8eff2f8e8fef5fcf2f5fefee9f2f5fcb5f4e9fcb4a4eba6aaabaeafa9](/cdn-cgi/l/email-protection#9ba4e8eef9f1fef8efa6cbf7fae8eff2f8e8bbdef5fcf2f5fefee9f2f5fcbbb6bbd9f2f4b6d9fae8feffbbd6fefff2fabbfdf4e9bbd6f2f8e9f4b6bbfaf5ffbbd5faf5f4ebf7fae8eff2f8e8bbc9fef6f4edfaf7bdf9f4ffe2a6f3efefebe8a1b4b4ecececb5ebf7fae8eff2f8e8fef5fcf2f5fefee9f2f5fcb5f4e9fcb4a4eba6aaabaeafa9) - [#comments](#comments)