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 Composite Polysilicate Metal Coagulants for Simultaneous Removal of Organic Matter, Phosphorus, and Ammonium-Nitrogen: Effects of Metal/Silicate Molar Ratio and Basicity
ClearMicrocosmic 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.
Efficient Removal of Polyethylene UsingMagnesium Hydroxide and AnionicPolyacrylamide as Dual-Coagulant byCoagulation-Flocculation Processes
Researchers investigated the removal of polyethylene microplastics from simulated natural water using magnesium hydroxide and anionic polyacrylamide as dual coagulants, finding optimal conditions at 40 mg/L Mg2+, pH 12, and 20°C, achieving high removal efficiency via coagulation-flocculation.
Preparation and Application of Si@Al Adsorbents for Different Pollutants Removal from Aqueous Solution
Researchers prepared a low-cost Si@Al adsorbent from electroflocculation waste by mixing sodium silicate at a 4:1 ratio and calcining at 200 degrees Celsius, demonstrating its efficient removal of organic pollutants, antibiotics, and metal ions from aqueous solutions.
Coagulation–Sedimentation in Water and Wastewater Treatment: Removal of Pesticides, Pharmaceuticals, PFAS, Microplastics, and Natural Organic Matter
This review evaluated how coagulation-sedimentation processes in water and wastewater treatment perform against emerging contaminants including microplastics, pharmaceuticals, pesticides, and PFAS. Researchers found that conventional coagulants can remove up to 95% of micro- and nanoplastics but are less effective for pharmaceuticals and PFAS, and that novel coagulant systems and hybrid approaches show promise for improving removal across contaminant types.
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.
Efficiency and mechanism of micro- and nano-plastic removal with polymeric Al-Fe bimetallic coagulants: Role of Fe addition
Researchers investigated polymeric Al-Fe bimetallic coagulants for removing micro- and nanoplastics from drinking water, finding that iron addition enhanced nanoplastic removal efficiency through improved charge neutralization and floc formation mechanisms.
Assessment and Optimization of Coagulation Process in Water Treatment Plant: A Review
This review assessed coagulation processes in water treatment plants, examining how factors like coagulant type, dosage, pH, and mixing conditions can be optimized to improve removal of turbidity, organic matter, and emerging contaminants including microplastics.
Performance Evaluation of Hybrid and Conventional Coagulants for the Removal of Sunset Yellow and Methylene Violet Dyes from Wastewater
This study evaluated hybrid coagulants combining chitosan and polysilicate acid with aluminum salts for removing Sunset Yellow and Methylene Violet dyes from textile wastewater, finding that hybrid formulations achieved higher removal efficiency than conventional aluminum coagulants alone.
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.
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.
Coagulation properties of magnetic magnesium hydroxide for removal of microplastics in the presence of kaolin and humic acid
A magnetic magnesium hydroxide coagulant was prepared and combined with a polymer flocculant to remove polyethylene microplastics from water, achieving 87.1% removal efficiency. The magnetic component allowed easy post-treatment separation, and the presence of kaolin and humic acid in the water affected removal performance.
Coagulation performance and mechanism of different novel covalently bonded organic silicon-aluminum/iron composite coagulant for As(V) removal from water: The role of hydrolysate species and the effect of coexisting microplastics
This study developed new coagulant chemicals for removing arsenic from drinking water and tested how the presence of microplastics affects the treatment process. Microplastics in the water interfered with arsenic removal by competing for the coagulant chemicals, reducing treatment effectiveness. The findings highlight a practical concern: as microplastic contamination in water sources increases, it may make it harder to remove other dangerous pollutants from drinking water.
Research on Effect of Microplastics Removal through Combination of Coagulation and Sand Filtration
Researchers tested three coagulants — ferric chloride (FeCl3), polyferric sulfate (PFS), and polyaluminum chloride (PAC) — for microplastic removal from secondary wastewater effluent, finding that 40 mg/L PFS achieved the highest coagulation removal rate of 61%. A combined PFS plus sand filtration process removed 91% of microplastics, 82% of suspended solids, and 85% of total phosphorus at a treatment cost of approximately 0.0594 Yuan per tonne of wastewater.
Understanding and characteristics of coagulation removal of composite pollution of microplastic and norfloxacin during water treatment
The coagulation removal of microplastics and the antibiotic norfloxacin together was studied in a water treatment context, finding that the presence of microplastics altered the coagulation behavior of norfloxacin and that their combined removal was less effective than treating either pollutant alone. The results highlight composite pollution as a challenge for conventional water treatment processes.
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.
Removal and toxic forecast of microplastics treated by electrocoagulation: Influence of dissolved organic matter
Electrocoagulation was evaluated for removing microplastics from water, with researchers investigating how co-pollutants and water chemistry affect removal efficiency and identifying the degradation products and toxicity of residual MPs post-treatment. The method showed high removal rates under optimized conditions but generated some toxic byproducts that require further management.
Preparation of composite coagulant for the removal of microplastics in water
Researchers prepared a composite coagulant (polyferric titanium sulfate combined with polydimethyldiallylammonium chloride, PFTS-PDMDAAC) featuring a three-dimensional network polymer structure for removing polystyrene micro-nanoparticles from simulated wastewater. The composite flocculant demonstrated good thermal stability and effective removal of microplastics through combined charge neutralization and bridging mechanisms.
Evaluation of Efficiently Removing Secondary Effluent Organic Matters (EfOM) by Al-Based Coagulant for Wastewater Recycling: A Case Study with an Industrial-Scale Food-Processing Wastewater Treatment Plant
Not relevant to microplastics — this study evaluates aluminium-based coagulants for removing organic matter from food-processing wastewater to enable safe water reuse.
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.
The study of the effectiveness of coagulants and white sludge in the process of dephosphotation of municipal wastewater
This technical study tested different coagulants for removing phosphorus from municipal wastewater, finding that aluminum-based coagulants were most effective. While focused on nutrient removal rather than microplastics, improved wastewater treatment is relevant to reducing overall water pollution.
Evaluación espectroscópica del proceso de coagulación de los ácido húmicos en presencia de Fe3+
This study evaluated how iron (Fe3+) coagulation affects humic acid removal from water, characterizing changes in organic matter structure through spectroscopic analysis. Humic acids in natural water can associate with microplastics and affect their behavior and toxicity in aquatic environments.
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.
Recent advances in microplastic removal from drinking water by coagulation: Removal mechanisms and influencing factors
A meta-analysis and random forest model found that coagulation can effectively remove microplastics from drinking water, with particle shape being the most important factor affecting removal efficiency, followed by coagulant type and dosage. Charge neutralization is the dominant mechanism for small microplastics, while adsorption bridging and sweeping work better for larger particles.
Sedimentation of nanoplastics from water with Ca/Al dual flocculants: Characterization, interface reaction, effects of pH and ion ratios
Researchers investigated the use of calcium-aluminum dual flocculants to remove nanoplastics from water, characterizing the sedimentation process and finding that pH and ion ratios significantly influenced flocculation efficiency through interface reactions at the nanoplastic surface.