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61,005 resultsShowing papers similar to Microplastic removal from wastewater through biopolymer and nanocellulose-based green technologies
ClearSustainable coagulative removal of microplastic from aquatic systems: recent progress and outlook
This review examines how natural coagulants from plants, animals, and microbes can be used to remove microplastics from water as a greener alternative to conventional chemical treatments. These bio-based coagulants, especially when combined with nanotechnology, show promising removal rates while avoiding the toxic residues left by traditional chemical approaches.
Natural-based coagulants/flocculants for microplastics and nanoplastics removal via coagulation–flocculation: a systematic review
This systematic review evaluates how natural plant-based materials can be used to remove microplastics and nanoplastics from water through coagulation and flocculation processes. The findings show that these sustainable, nature-derived alternatives can effectively capture plastic particles during water treatment, offering a greener approach to reducing microplastic contamination in our drinking water.
Biopolymer-based flocculants: a review of recent technologies
Researchers reviewed recent advances in biopolymer-based flocculants — water treatment agents derived from chitosan, starch, cellulose, and lignin — summarizing modification strategies and flocculation mechanisms, and highlighting their potential as environmentally friendly replacements for synthetic polymer flocculants that contribute to microplastic pollution in treated water.
Microplastic Removal in Wastewater Treatment Plants (WWTPs) by Natural Coagulation: A Literature Review
This review examines how natural coagulants, substances derived from plants and other natural sources, can be used to remove microplastics during wastewater treatment. Natural coagulants are safer and cheaper than chemical alternatives, and show promise for capturing microplastic particles. Since wastewater treatment plants are a major source of microplastics entering waterways, better removal methods could reduce the amount of plastic pollution reaching the environment and eventually human food and water supplies.
Tailored cellulose-based flocculants for microplastics removal: Mechanistic insights, pH influence, and efficiency optimization
Researchers developed plant-derived (cellulose-based) flocculants that clump microplastics together so they can be more easily removed from water, finding that a low concentration of 0.001 g/mL was optimal and that both electrical charge and water-repelling interactions drive the process depending on the type of plastic.
Fenugreek and OkraPolymers as Treatment Agents forthe Removal of Microplastics from Water Sources
Researchers evaluated fenugreek and okra plant-derived polysaccharides as biodegradable, non-toxic flocculants for removing microplastics from water sources, positioning them as alternatives to conventional inorganic and synthetic organic flocculants. The study assessed their coagulation and flocculation performance for capturing fine microplastic particles that evade standard wastewater treatment processes.
Microalgal-based biopolymer for nano- and microplastic removal: a possible biosolution for wastewater treatment
The cyanobacterium Cyanothece sp. produced extracellular polymeric substances that formed aggregates with both nano and microplastics, flocculating and removing them from water. This microalgal bioflocculant is proposed as a natural, non-toxic alternative to synthetic flocculants for removing plastics from wastewater.
Removal of microplastics from wastewater: available techniques and way forward
This review surveys the available techniques for removing microplastics from wastewater, including filtration, coagulation, biological treatment, and advanced methods like membrane bioreactors. Researchers found that while conventional treatment plants can remove a substantial fraction of microplastics, significant amounts still pass through to the environment. The study emphasizes the need for upgrading wastewater treatment systems to better capture these emerging contaminants.
Coagulative removal of microplastics from aqueous matrices: Recent progresses and future perspectives
This review examines how coagulation, a common water treatment technique, can be used to remove microplastics from water. Researchers compared the effectiveness of different coagulants, finding that natural options like chitosan and protein-based coagulants achieved removal rates above 90 percent. The study highlights the promise of natural coagulants as a more sustainable approach to tackling microplastic contamination in water treatment systems.
Eradication of Microplastics in Wastewater Treatment: Overview
This review examined technologies for removing microplastics from wastewater, evaluating physical, chemical, and biological treatment methods and finding that while conventional treatment plants capture a significant fraction, emerging technologies like membrane filtration and coagulation are needed to achieve more complete removal.
Sustainable Removal of Microplastics and Natural Organic Matter from Water by Coagulation–Flocculation with Protein Amyloid Fibrils
Researchers developed a novel water treatment method using protein-based amyloid fibrils as a natural flocculant to remove microplastics and dissolved organic matter from water. The method achieved removal efficiencies above 97% for both microplastic particles and humic acid, outperforming conventional chemical flocculants at the same dosage. The approach offers a sustainable, biodegradable alternative to traditional water treatment chemicals for addressing microplastic contamination.
Greener Microplastics Removal: Progressive Replacement of Iron‐Based Coagulants with Sodium Alginate and Chitosan to Enhance Sustainability
Researchers tested whether natural biopolymers like sodium alginate and chitosan could progressively replace iron-based coagulants for removing microplastics from wastewater. They found that partial substitution maintained effective microplastic removal while reducing the environmental footprint of the coagulation process. The study suggests that blending conventional and biopolymer coagulants offers a more sustainable approach to microplastic removal in wastewater treatment.
Micro- and nanoplastics removal mechanisms in wastewater treatment plants: A review
This review examines how conventional wastewater treatment plants remove micro- and nanoplastics, and evaluates advanced technologies like membrane filtration and electrocoagulation that could improve removal rates. While existing treatment plants can capture most microplastics, they still release significant quantities into waterways through their enormous discharge volumes. The study highlights that biological treatment steps may also transform microplastics in potentially harmful ways that need further investigation.
Application of New Polymer Flocculants in Industrial Wastewater Treatment
This review covers the use of polymer-based flocculants in industrial wastewater treatment, which help remove suspended particles and contaminants. Flocculants are relevant to microplastic removal because they can aggregate small plastic particles to make them easier to filter out of water.
Bio-Based Polymeric Flocculants and Adsorbents for Wastewater Treatment
This review explores how materials derived from natural biological sources, such as plant-based polymers, can be used as flocculants and adsorbents to remove contaminants from wastewater. Researchers found that these bio-based materials offer advantages including biodegradability, low cost, and effectiveness in trapping pollutants through both clumping and surface binding mechanisms. The study suggests that bio-based polymeric materials are a promising sustainable alternative to synthetic chemicals currently used in water treatment.
Microplastics remediation in aqueous systems: Strategies and technologies
This review assessed strategies and technologies for removing microplastics from aquatic environments, comparing coagulation-flocculation, membrane filtration, magnetic separation, photocatalysis, and biological degradation approaches in terms of efficiency, scalability, and cost for both wastewater and natural water treatment.
Insights on Microplastic Contamination from Municipal and Textile Industry Effluents and Their Removal Using a Cellulose-Based Approach
Researchers analyzed microplastic contamination in effluents from textile industries and municipal sources and evaluated a cellulose-based treatment approach for their removal. Textile effluents contained high microplastic concentrations dominated by synthetic fibers, and the cellulose-based method achieved significant removal efficiency, offering a biodegradable remediation alternative.
Innovative technologies for removal of micro plastic: A review of recent advances
Researchers reviewed emerging technologies for removing microplastics from wastewater, covering filtration, coagulation, biological treatment, and other methods used at treatment plants. The review highlights which approaches show the most promise and calls for broader adoption and improved standardization so that microplastics are more consistently captured before they reach rivers, lakes, and oceans.
The removal of microplastics from water by coagulation: A comprehensive review
This review comprehensively examined coagulation as a technology for removing microplastics from drinking water and wastewater treatment plants, analyzing the mechanisms, influencing factors, and effectiveness of different coagulants for microplastic removal.
Removal of microplastics in water: Technology progress and green strategies
Researchers reviewed existing technologies for removing microplastics from water, including filtration, magnetic separation, chemical coagulation, and biodegradation. Each method has significant trade-offs — filtration is costly, chemical approaches risk secondary pollution, and biological methods are slow — pointing to the need for integrated, environmentally friendly strategies that combine multiple approaches.
Bacterial cellulose biopolymers: The sustainable solution to water-polluting microplastics
Researchers developed bacterial cellulose (BC) biopolymer filters as a sustainable alternative to petroleum-based polymer filters used in wastewater treatment plant microplastic removal. BC filters showed high MP capture efficiency and are biodegradable, addressing both microplastic pollution and the environmental costs of conventional synthetic filter maintenance.
Efficient removal of nano- and micro- sized plastics using a starch-based coagulant in conjunction with polysilicic acid
Researchers found that combining a starch-based coagulant with polysilicic acid efficiently removes nano- and micro-sized polystyrene particles from water, offering an eco-friendly coagulation approach for addressing microplastic pollution in water treatment applications.
A comprehensive review of microplastics in wastewater treatment plants
This review surveys microplastic removal technologies used in wastewater treatment plants, comparing membrane bioreactors, electrocoagulation, coagulation-sedimentation, and biodegradation approaches. Understanding removal efficiency at treatment plants is critical because they are a primary pathway by which microplastics — and the toxic chemicals they carry — reach rivers, coastal waters, and ultimately drinking water supplies.
Microplastic removal in coagulation-flocculation: Optimization through chemometric and morphological insights
Researchers optimized the coagulation-flocculation process — a standard water treatment step where chemicals cause particles to clump and settle — for removing three types of microplastics: polypropylene, polyethylene, and polystyrene. Polystyrene was removed most efficiently, and adjusting pH, coagulant type, and dosage significantly improved removal rates, providing practical guidance for upgrading existing water treatment plants to better capture microplastics.