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61,005 resultsShowing papers similar to Effective removal of microplastics by filamentous algae and its magnetic biochar: Performance and mechanism
ClearRecent advances and factors affecting the adsorption of nano/microplastics by magnetic biochar
This review examines recent advances in using magnetic biochar to adsorb nano- and microplastics from aquatic environments. Researchers found that magnetic biochar offers advantages over traditional biochar by enabling easy separation from water using magnets, avoiding secondary pollution from filtration. The study identifies key factors affecting adsorption efficiency and highlights magnetic biochar as a promising tool for microplastic remediation in contaminated water.
Interplay of plastic pollution with algae and plants: hidden danger or a blessing?
Researchers tested the ability of three microalgae species to remove microplastics from water through bioadhesion, finding that all three species could adsorb particles onto their surfaces. Removal efficiency depended on particle size, surface charge, and algae cell morphology.
Removal of pristine and aged microplastics from water by magnetic biochar: Adsorption and magnetization
Researchers evaluated whether magnetic corncob biochar could effectively remove both pristine and aged polyamide microplastics from water. The study found that aging dramatically changed the surface properties of microplastics, and the biochar removed approximately 97% of aged microplastics compared to only 25% of pristine ones, with smaller particle sizes further improving removal. Evidence indicates that adsorption combined with magnetization offers a practical approach for removing environmentally weathered microplastics from water.
Efficient removal of microplastics from aqueous solution by a novel magnetic biochar: performance, mechanism, and reusability
Researchers developed a magnetic biochar from rice husks that achieved 99.96% removal of microplastics from water, with the material showing excellent reusability and performance under various environmental conditions.
Efficient removal of nanoplastics by iron-modified biochar: Understanding the removal mechanisms
Researchers created iron-modified biochar from green algae waste to remove nanoplastics from water. The modified biochar achieved a removal capacity three times higher than unmodified biochar, reaching up to 1,626 milligrams per gram, through a two-phase process of adsorption followed by aggregation. The study suggests this material could be recycled and reused at least three times, offering a practical approach to nanoplastic remediation.
A novel polymer coated magnetic activated biochar-zeolite composite for adsorption of polystyrene microplastics: Synthesis, characterization, adsorption and regeneration performance
Researchers developed a new magnetic composite material made from biochar, zeolite, and polymer coatings that can effectively capture microplastics from water. The material removed over 90 percent of test microplastics and could be regenerated and reused multiple times. The study presents a promising, practical approach for filtering microplastics out of contaminated water using materials that can be magnetically recovered.
Are algae a promising ecofriendly approach to micro/nanoplastic remediation?
This review examines the potential of algae as an eco-friendly approach to removing micro- and nanoplastics from wastewater treatment plant effluents, covering mechanisms including interception, entanglement, and heteroaggregation. Algae also offer the added benefit of nutrient recovery from wastewater and can be further processed into biochar or biofertilizer.
Adsorption and thermal degradation of microplastics from aqueous solutions by Mg/Zn modified magnetic biochars
Researchers developed magnesium- and zinc-modified magnetic biochars that achieved over 94% removal efficiency for polystyrene microplastics from water, with performance enhanced by the metal modifications. The modified biochars also showed effectiveness in thermally degrading the captured microplastics, offering a potential two-step approach for microplastic removal and destruction in water treatment.
Removal of Co-Occurring Microplastics and Metals in an Aqueous System by Pristine and Magnetised Larch Biochar
Researchers tested pristine and modified biochar for simultaneous removal of co-occurring microplastics and heavy metals from water, finding that biochar surface modifications improved adsorption of both contaminant classes, offering a promising dual-removal treatment strategy.
Biochar-based adsorption technologies for microplastic remediation in aquatic ecosystems
This review examines the use of biochar, a carbon-rich material made from organic waste, as a tool for removing microplastics from water. Biochar can effectively adsorb microplastic particles due to its porous structure and surface chemistry, and it can be produced cheaply from agricultural waste. The technology shows promise as an affordable and sustainable approach to reducing microplastic contamination in waterways, though challenges remain in scaling it up for real-world water treatment.
Trends in the applications of biochar for the abatement of microplastics in water
This review examines how biochar can be used to remove microplastics and nanoplastics from water, summarizing recent advances in biochar modification strategies that improve adsorption capacity and minimize secondary pollution risks.
Eradicating microplastics in wastewater: microalgae as a sustainable strategy
This review examines the use of microalgae as a sustainable strategy for removing microplastics from wastewater, discussing biosorption mechanisms, removal efficiencies, and the limitations of conventional treatment plants that typically achieve only up to 90% MP removal.
Research advances on production and application of algal biochar in environmental remediation
This review examines how biochar made from algae can be used to clean up environmental pollution, including removing microplastics from water and improving contaminated soil. Algal biochar has shown promise for absorbing heavy metals, organic pollutants, and microplastics, and it can also improve soil health. While more large-scale and long-term studies are needed, algae-based biochar offers a potentially sustainable tool for reducing microplastic contamination in water and soil.
Occurrence and distribution of microplastics in wastewater system and their adsorptive removal using CTAB-modified magnetic biochar from aqueous matrices
Microplastics were detected throughout India's wastewater treatment systems, and a modified magnetic biochar was developed that effectively removes them from water, offering a promising low-cost treatment solution.
Exploring the potential of microalgae in removal of microplastics from the environment and scope of this entity as feedstock for biofuel production
This review explores the potential of microalgae to capture and remove microplastics from aquatic environments, examining the mechanisms by which algal cells adsorb or aggregate plastic particles and discussing the feasibility of algae-based remediation at scale.
Removal of microplastics with microalgae and biofuel production
This review examines the potential of microalgae to simultaneously remove microplastics from water while serving as a feedstock for biofuel production, evaluating both the biosorption mechanisms involved and the downstream feasibility of converting biomass to energy.
Removal of Microplastics from Industrial Wastewater Using Microalgae
This review examines the use of microalgae as a sustainable biological approach for removing microplastics from wastewater, covering mechanisms of MP attachment to algal surfaces, factors affecting removal efficiency, and prospects for integrating algae cultivation with wastewater treatment.
Biochar applications in microplastic and nanoplastic removal: mechanisms and integrated approaches
This review explores how biochar, a charcoal-like material made from organic waste, can be used to filter microplastics and nanoplastics out of water. Researchers found that biochar works through several mechanisms and becomes even more effective when combined with other water treatment technologies. The study suggests biochar-based approaches could be a practical, low-cost strategy for tackling plastic pollution in water systems.
Efficient Removal of Micro-Sized Degradable PHBV Microplastics from Wastewater by a Functionalized Magnetic Nano Iron Oxides-Biochar Composite: Performance, Mechanisms, and Material Regeneration
Researchers developed a magnetic iron oxide-biochar composite capable of removing biodegradable PHBV microplastics from wastewater with over 98% efficiency. The material worked through a combination of surface adsorption and magnetic separation, maintained performance across a wide pH range, and retained over 92% removal efficiency after four regeneration cycles.
Recent advancement in removal of microplastics as emerging pollutants from aquatic ecosystems: adsorption and separation
This review summarizes recent advances in adsorption and separation technologies for removing microplastics from aquatic ecosystems, covering materials including magnetic nanoparticles, metal-organic frameworks, biochar, and electrocoagulation approaches.
Recent advancement in microplastic removal process from wastewater - A critical review
This review of over 250 studies examines physical, chemical, and biological methods for removing microplastics from wastewater, finding that biochar filtration is among the most effective approaches. Effective removal of microplastics from water is important because these particles can accumulate in the food chain and pose risks to human health.
Enhanced removal of microplastics from wastewater treatment plants by a novel magnetic filter
This study developed a novel magnetic adsorption approach to enhance microplastic removal in wastewater treatment plant effluents, achieving high removal efficiency across a range of particle sizes and polymer types.
Removal of micro- and nano-plastics from aqueous matrices using modified biochar – A review of synthesis, applications, interaction, and regeneration
This review examines how modified biochar materials can be used to remove micro- and nanoplastics from water. Researchers found that chemical functionalization and nanoparticle integration of biochar significantly improve its ability to capture plastic particles through mechanisms like electrostatic interaction and physical adsorption. The study also highlights challenges in regenerating used biochar for sustainable reuse in water treatment applications.
Evaluating the impact of innovative algae- based membrane bioreactors against the emerging microplastic crisisin combating water pollution
This study evaluated algae-based membrane bioreactors for removing microplastics and other emerging contaminants from wastewater, finding that combining algal biomass with membrane filtration improved MP removal efficiency compared to conventional biological treatment alone.