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61,005 resultsShowing papers similar to Enhancing the remediation of polyamide microplastics: A comparative study of natural and synthetic coagulants
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.
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.
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.
Enhancing microplastic removal from natural water using coagulant aids
Researchers tested different chemical treatments for removing microplastic beads from natural water and found that polyaluminium chloride combined with polyacrylamide achieved over 95% removal across six common plastic types. The treatment worked on particles ranging from 10 to 1,000 micrometers, and natural organic matter in the water actually improved performance. The findings suggest that optimizing standard water treatment processes could be a practical way to reduce microplastic contamination in drinking water sources.
Removal of Pristine and UV-Weathered Microplastics from Water: Moringa oleifera Seed Protein as a Natural Coagulant
Researchers tested a natural plant-based coagulant from Moringa oleifera seeds for removing microplastics from water, comparing it to conventional chemical treatments. The natural coagulant effectively removed both fresh and UV-weathered polyethylene microplastics, performing comparably to synthetic alternatives. This approach offers a more eco-friendly and less toxic option for cleaning microplastics from water systems.
Microplastics removal from aquatic environment by coagulation: Selecting the best coagulant based on variables determined from a systematic review
This systematic review and experimental study identifies the most effective methods for removing microplastics from water using coagulation, a common water treatment technique. Researchers tested different coagulants on three types of microplastics and found that aluminum-based coagulants were most effective. These findings could help water treatment plants better remove microplastics from the water supply before it reaches our taps.
Enhancing the coagulation process for the removal of microplastics from water by anionic polyacrylamide and natural-based Moringa oleifera
Scientists tested improved water treatment methods using aluminum sulfate combined with either a synthetic aid or natural Moringa oleifera seed extract to remove microplastics from water. Both combinations achieved over 80-93% removal for certain plastic types, and the natural plant-based approach cut the required chemical dose in half -- offering a more sustainable way to keep microplastics out of drinking 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.
Natural coagulants (Moringa oleifera and Benincasa hispida) based removal of microplastics
Researchers tested two plant-based coagulants — from Moringa oleifera seeds and white gourd (Benincasa hispida) — for removing microplastics from water, finding they achieved roughly 84–87% removal rates comparable to the commonly used chemical coagulant alum. This is the first study showing that natural, plant-derived coagulants can serve as sustainable, non-toxic alternatives for filtering microplastics from water supplies.
Microplastics removal from natural surface water by coagulation process
Researchers compared the effectiveness of ferrous and aluminum sulfate coagulants for removing microplastics from natural surface water, finding that both successfully removed polystyrene and polyvinyl chloride particles. Ferrous sulfate showed slightly higher removal efficiency, and the addition of coagulant aids further improved results. The study demonstrates that conventional coagulation processes already used in drinking water treatment can meaningfully reduce microplastic contamination.
Microplastics and nanoplastics in water: Improving removal in wastewater treatment plants with alternative coagulants
Conventional water treatment plants that use alum as a coagulant become significantly less effective at removing microplastics and nanoplastics as water pH rises above 7.8, which is common in municipal wastewater. Switching to alternative coagulants — particularly aluminum chlorohydrate and cationic polyamine blends — maintained high removal rates at elevated pH, with nanoplastic removal reaching 71% and microfiber removal staying above 95%. The findings offer practical guidance for upgrading treatment plants to better capture plastic particles before they are discharged into waterways.
A brief review on utilizing natural adsorbents for microplastic removal from wastewater: A sustainable approach to environmental protection
Researchers reviewed natural materials like biochar, clay, algae, and agricultural waste as affordable alternatives to synthetic filters for removing microplastics from wastewater, finding some achieved over 80% removal efficiency in the lab, though scaling these methods to real-world treatment systems remains a significant challenge.
Soybean Pulp Extract as a Natural Coagulant for Microplastic Removal in Domestic Wastewater
Researchers tested soybean pulp extract as a natural, plant-based coagulant for removing microplastics from municipal wastewater and found it effectively reduced microplastic concentrations, offering an alternative to synthetic alum that avoids the environmental drawbacks of harmful sludge generation.
Removal of Microplastics from Drinking Water by Moringa oleifera Seed: Comparative Performance with Alum in Direct and in-Line Filtration Systems
A study compared Moringa oleifera seed extract—a natural, plant-based coagulant—to conventional aluminum sulfate for removing microplastics from low-turbidity drinking water, finding both achieved over 98% removal efficiency, but the natural extract worked effectively across a wider pH range (5–8 vs. 5–7 for alum). Moringa-based treatment could offer a sustainable, lower-chemical-impact alternative for drinking water treatment in regions where aluminum chemicals are costly or controversial. This is relevant to global efforts to remove microplastics from tap water before human consumption.
Using Spirulina platensis as a natural biocoagulant for polystyrene removal from aqueous medium: performance, optimization, and modeling
Researchers tested Spirulina platensis, a type of blue-green algae, as a natural coagulant for removing polystyrene microplastics from water. By optimizing conditions like pH, contact time, and dosage, they achieved significant removal of the plastic particles from aqueous solutions. The study suggests that natural biocoagulants could offer an eco-friendly approach to addressing microplastic contamination in water.
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.
Utilizing nature-based adsorbents for removal of microplastics and nanoplastics in controlled polluted aqueous systems: A systematic review of sources, properties, adsorption characteristics, and performance
This systematic review evaluates how natural materials like agricultural waste and plant-based substances can be used to filter microplastics and nanoplastics from water. The research shows that these nature-based solutions offer a sustainable and effective approach to reducing plastic particle contamination in drinking water and wastewater systems.
From Natural to Industrial: How Biocoagulants Can Revolutionize Wastewater Treatment
This review examines how natural, plant-derived substances called biocoagulants could replace synthetic chemicals in wastewater treatment, achieving similar removal rates for pollutants including heavy metals. While not focused on microplastics specifically, better wastewater treatment is one of the key ways to reduce microplastic pollution in waterways. A textile industry case study showed a 25% reduction in sludge when using biocoagulants, suggesting a more sustainable approach to cleaning water before it enters the environment.
Investigating the Potential of Coagulants to Improve Microplastics Removal in Wastewater and Tap Water
Researchers found that adding coagulants (FeCl3 or Al2(SO4)3) to wastewater and tap water improved microplastic removal, with aluminum sulfate achieving 43% and 62% removal efficiencies respectively, though the high concentrations required suggest that combining coagulants with organic polyelectrolytes could improve practicality.
Efficacy of Protein Extracts of Moringa oleifera and Benincasa hispida Seeds for the Treatment of Microplastics
Researchers tested protein extracts from Moringa oleifera and Benincasa hispida seeds as natural coagulants for removing microplastics from water. Moringa extracts achieved 94% removal efficiency at a dosage of 30 mL/L, while Benincasa hispida reached 88% removal at 40 mL/L under neutral pH conditions. The study suggests these plant-based coagulants could serve as effective, sustainable, and affordable alternatives to synthetic chemicals for microplastic treatment in water systems.
Microplastics_Removal
Researchers evaluated the efficiency of a microplastic removal system for synthetic wastewater that combines a chemical treatment process with simple filtration, measuring removal performance across different microplastic types and concentrations.
The influence of coagulation process conditions on theefficiency of microplastic removal in water treatment
Researchers investigated how coagulation process conditions — including coagulant type, pH, and microsand addition — affect the removal of polyethylene, PVC, and textile microfibers from river water, municipal wastewater, laundry effluent, and synthetic matrices. Ferric chloride and polyaluminum chloride both achieved substantial removal, with performance varying significantly by water matrix and microplastic type.
Removal of microplastics from water by coagulation of cationic-modified starch: An environmentally friendly solution
Researchers developed a cationic-modified starch bio-coagulant as an eco-friendly method for removing microplastics from water, achieving an average removal rate of over 65% for polystyrene particles. The starch-based treatment was effective across a wide range of water pH levels and performed well in natural water samples from China's Yangtze River Delta. The study offers a sustainable and cost-effective approach for addressing microplastic contamination in water systems.
Influence of Different Coagulants on Microplastics Removal
Researchers compared the effectiveness of different coagulants—including aluminum sulfate, ferric chloride, and polyaluminum chloride—for removing microplastics from water, finding significant performance differences dependent on plastic particle size, charge, and coagulant dose.