We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Removal of polystyrene and polyethylene microplastics using PAC and FeCl3 coagulation: Performance and mechanism
AI summary Read the abstract
Researchers studied how two common water treatment coagulants, PAC and iron chloride, remove polystyrene and polyethylene microplastics from water. They found that PAC was more effective than iron chloride, and that alkaline conditions improved removal rates. The study provides practical insights for drinking water treatment plants looking to reduce microplastic contamination in their supply.
As a new type of potentially threatening pollutant, microplastics are widely distributed in water and may come into contact with the humans through tap water. The removal behaviors of microplastics in water treatment plants coagulation are not completely clear. In this paper, the removal performance and mechanism of polystyrene (PS) and polyethylene (PE) microplastics using PAC and FeCl coagulation were studied. Results showed that PAC was better than FeCl in removal efficiency of PS and PE microplastics. Charge neutralization occurred in the coagulation process. The figures of scanning electron microscope (SEM) illustrate that agglomeration adsorption occurred in PS system, and the Fourier transform infrared spectroscope (FTIR) spectra demonstrates that new bonds were formed during the interaction between PS microplastics and coagulants. In addition, the hydrolysis products of coagulants played a major role rather than the hydrolysis process in both PS system and PE system. The removal efficiency of microplastics in alkaline conditions was higher than that in acidic conditions. Cl had little effect on the removal efficiency of microplastics, while SO and CO had inhibitory and promoting effects respectively. The increase of stirring speed could improve the removal efficiency of microplastics. This paper can provide a reference for the study of microplastics treated by coagulation.
More Papers Like This
Efficiency and mechanism of micro- and nano-plastic removal with polymeric Al-Fe bimetallic coagulants: Role of Fe addition
AI summary Read the abstract
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.
Enhanced Removal of Polystyrene Microplastics from Water Through Coagulation Using Polyaluminum Ferric Chloride with Coagulant Aids
AI summary Read the abstract
Researchers tested enhanced coagulation using modified coagulants to remove polystyrene microplastics from water, finding that surface-modified coagulants achieved significantly higher removal efficiencies than conventional alum. Removal reached over 90% under optimized conditions, demonstrating a practical upgrade pathway for conventional water treatment plants to reduce microplastic discharge.
Evaluating the performance of electrocoagulation system in the removal of polystyrene microplastics from water
AI summary Read the abstract
Researchers tested electrocoagulation, a water treatment method that uses electric current to clump particles together, for removing polystyrene microplastics from water. Using aluminum electrodes at neutral pH, they achieved over 90% removal efficiency. This technology could provide a practical and effective way to remove microplastics from drinking water and wastewater, reducing human exposure to these contaminants.
The influence of coagulation process conditions on theefficiency of microplastic removal in water treatment
AI summary Read the abstract
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.
Microplastics removal from natural surface water by coagulation process
AI summary Read the abstract
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.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.