We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Performance Evaluation of Hybrid and Conventional Coagulants for the Removal of Sunset Yellow and Methylene Violet Dyes from Wastewater
ClearGreen and Eco-Friendly Treatment of Textile Wastewater by Using Azadirachta indica Leaf Extract Combined with a Silver Nitrate Solution
Textile industry wastewater was treated using combinations of Azadirachta indica (neem) leaf extract and synthetic coagulants in two case studies, evaluating color and pollutant removal efficiency. The green coagulant combination showed effective performance, supporting its use as an eco-friendly supplement to conventional textile wastewater treatment.
Synergistic removal of microplastic fibres using hybrid pre-treatment: evaluation of Chitosan as a green coagulant
Researchers evaluated the capacity of existing water treatment pre-treatment methods to remove microplastic fibers and investigated chitosan — a low-molecular-weight, 75-85% deacetylated green coagulant — as an alternative to conventional chemical coagulants. The study assessed a hybrid pre-treatment approach, finding synergistic microplastic fiber removal efficiency when chitosan was combined with existing processes.
Effect of coagulation on microfibers in laundry wastewater
Researchers tested ferric chloride and polyaluminium chloride (PACl) as coagulants for removing synthetic microfibers from laundry wastewater, finding that surfactants in detergent reduced removal efficiency from up to 96% to 0-37%. Adding PACl restored removal to above 90%, with optimal PACl concentrations dependent on detergent concentration, suggesting coagulant addition is critical for effective microfiber removal from laundry effluent.
Enhanced removal of microplastic fibres using aluminium and chitosan-based coagulants assisted with microbubble technology
Researchers tested the removal of microplastic fibers from water using aluminium-based and chitosan-based coagulants combined with sedimentation and microbubble flotation techniques. The aluminium coagulant achieved the highest removal rate of 88% through sedimentation in humic acid-containing water, while chitosan achieved 78% removal using microbubble flotation at a lower dosage. The findings suggest that the natural coagulant chitosan has potential as an effective and greener alternative for microplastic fiber removal in water treatment.
Efficiency of Coagulation/Flocculation for the Removal of Complex Mixture of Textile Fibers from Water
Researchers tested coagulation and flocculation for removing a mixture of synthetic and natural textile fibers from water, finding that the presence of natural fibers significantly affected removal efficiency compared to single-fiber studies, which has practical implications for wastewater treatment.
Composite Polysilicate Metal Coagulants for Simultaneous Removal of Organic Matter, Phosphorus, and Ammonium-Nitrogen: Effects of Metal/Silicate Molar Ratio and Basicity
Researchers prepared composite polysilicate metal (CSM) flocculants combining Fe3+ and Mg2+ ions in polysilicic acid and evaluated their performance for simultaneously removing organic matter, phosphorus, and ammonium-nitrogen from wastewater, finding that metal-to-silicate molar ratio and basicity significantly affect removal efficiency.
Functionally Graded Chitosan Ferrite Beads for Photocatalytic Degradation of Eriochrome Black T and Congo Red Dyes
This study developed chitosan-ferrite beads for photocatalytic degradation of synthetic dyes in wastewater. Textile dyes frequently co-occur with microplastic fibers in wastewater effluents, and combined removal strategies are important for reducing multiple types of pollution simultaneously.
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.
Microcosmic mechanism analysis of the combined pollution of aged polystyrene with humic acid and its efficient removal by a composite coagulant
Researchers analyzed how aged polystyrene interacts with humic acid at the molecular level and developed a novel polyaluminum-titanium chloride composite coagulant that effectively removes these combined pollutants from water across different pH conditions.
Análisis fisicoquímico de interacción de los ácidos húmicos con colorante (rojo allura AC) en presencia de metales
Researchers performed physicochemical analysis of humic acid aggregation and coagulation with the food dye Allura Red (Red 40) in the presence of Fe3+, Al3+, Ca2+, and Mg2+ coagulants at pH 5 and 7, finding that humic acid from leonardite showed the greatest interaction with Fe3+ at pH 5, removing up to 68% of organic matter, with overall dye removal efficiencies of 50-60% at neutral pH.
Performance of Chemical-Based vs Bio-BasedCoagulants in Treating Aquaculture Wastewaterand Cost-benefit Analysis
Researchers compared alum and neem-leaf coagulants for treating aquaculture wastewater in Malaysia, finding that alum achieved higher removal efficiencies for suspended solids and turbidity while the bio-based neem coagulant required lower dosages and offered cost advantages.
From Mineral Salts to Smart Hybrids: Coagulation–Flocculation at the Nexus of Water, Energy, and Resources—A Critical Review
This review traces six decades of coagulation-flocculation water treatment research, covering the evolution from simple inorganic aluminum and iron salts to hybrid biosourced and polymer coagulants, comparing their efficiency for removing turbidity, organic matter, and micropollutants.
Coagulation performance and mechanism of different hydrolyzed aluminum species for the removal of composite pollutants of polyethylene and humic acid
Researchers examined how different forms of hydrolyzed aluminum coagulants remove polyethylene microplastics and humic acid from water. The study found that when humic acid adsorbs onto microplastic surfaces, it changes the removal dynamics, and polyaluminum chloride with hexagonal clusters achieved the best microplastic removal through adsorption bridging and sweeping mechanisms.
Removal of microplastics from secondary wastewater treatment plant effluent by coagulation/flocculation with iron, aluminum and polyamine-based chemicals
Researchers tested iron, aluminum, and polyamine-based coagulants for removing small microplastics (<10 µm) from secondary wastewater treatment plant effluent, finding that coagulation-flocculation can remove a substantial fraction but that efficiency varies by chemical and particle size.
Synergistic removal of microplastic fibres: Integrating Chitosan coagulation in hybrid water pre-treatment systems
Microplastic fibers are the most common type of microplastic found entering water treatment plants, yet their elongated shape makes them especially hard to remove with conventional filters. This study investigated using chitosan — a natural, biodegradable material derived from crustacean shells — as a "green" coagulant to clump fibers together so they can be more easily removed, and also developed chemically modified versions of chitosan that work across a wider range of water conditions. The results showed that combining chitosan-based coagulation with microbubble aeration creates a synergistic pretreatment system that significantly improves microplastic fiber removal while avoiding the residual metal ions left by conventional chemical coagulants.
Optimizing Laundry Wastewater Treatment: A Hybrid Approach Using Poly-Aluminum Chloride Coagulation and Activated Carbon Adsorption
Researchers investigated a hybrid treatment system combining poly-aluminum chloride (PAC) coagulation and activated carbon adsorption to remove Chemical Oxygen Demand (COD) and phosphate from laundry wastewater. The study optimized PAC dosage (10% and 15%) and stirring time (0-45 minutes), demonstrating that the integrated approach significantly improves removal efficiency compared to single-treatment methods.
Researchon the removal of chemical oxygen demand and surfactants in commercial laundry wastewater by coagulation-flocculation process
Researchers investigated coagulation-flocculation treatment of commercial laundry wastewater, which contains significantly higher chemical oxygen demand (COD) and surfactant concentrations than domestic wastewater. Jar test experiments showed that poly aluminium chloride (PAC) at pH 7 and 60 mg/L dosage outperformed FeSO4·7H2O in reducing COD and surfactants to discharge standards.
Steric and Energetic Studies on the Synergetic Enhancement Effect of Integrated Polyaniline on the Adsorption Properties of Toxic Basic and Acidic Dyes by Polyaniline/Zeolite-A Composite
This study examined the adsorption properties of a polyaniline-zeolite composite for removing synthetic dyes from wastewater. While focused on dye removal, the composite adsorbent material approach is also applicable to capturing microplastics and chemical contaminants from industrial water streams.
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.
Ternary magnetic silica–graphene oxide composite for remediation of textile dyes from aqueous environment and real samples
This study developed a ternary magnetic silica-graphene oxide composite for removing textile dyes from wastewater and real effluent samples, demonstrating high removal efficiency for hazardous organic dyes that current treatment plants struggle to eliminate.
Enhancing the remediation of polyamide microplastics: A comparative study of natural and synthetic coagulants
Researchers compared natural plant-based coagulants with the synthetic coagulant alum for removing polyamide microplastics from water. They found that alum was more effective overall, removing up to 94% of microplastics, while the natural coagulants achieved moderate removal rates and worked best with larger particles. The study suggests that coagulation-based water treatment can meaningfully reduce microplastic contamination, with natural alternatives offering a more sustainable option.
Bacterial Augmented Floating Treatment Wetlands for Efficient Treatment of Synthetic Textile Dye Wastewater
Floating treatment wetlands planted with Phragmites australis and inoculated with pollutant-degrading bacteria effectively removed color, chemical oxygen demand, and heavy metals from synthetic textile dye wastewater, outperforming vegetated and unvegetated controls. The bacterial augmentation significantly enhanced the remediation performance, suggesting a promising approach for treating industrial textile effluent.
Fabrication and Characterization Fe3O4/Humic Acid for the Efficient Removal of Malachite Green
Researchers synthesized magnetite/humic acid composites (Fe3O4/HA) and tested their ability to remove malachite green dye from water, finding effective adsorption following pseudo-second-order kinetics. The magnetic material offers an environmentally friendly approach to removing dye pollutants from water.
Uncovering the performance and intrinsic mechanism of different hydrolyzed AlTi species in polystyrene nanoplastics coagulation
Researchers systematically compared how different aluminum-titanium coagulant species remove nanoplastics from water, finding that polymeric AlTi species outperform monomeric ones by achieving 95% turbidity removal at lower doses through a combination of charge neutralization and chemical complexation with the nanoplastic surface.