We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Investigations on the Particle Fouling and Backwash Efficiency During Microplastic Microfiltration–Particle Size Aspects
Summary
Researchers characterised polystyrene microplastic microfiltration through cellulose acetate membranes, testing particle and pore sizes in comparable ranges to challenge dead-end filtration. Particle size relative to pore size strongly influenced fouling behaviour, and backwashing efficiency varied with particle characteristics, informing filtration system design for MP removal.
The characteristics of polystyrene (PS) microplastic (MP) microfiltration by a cellulose acetate (CA) membrane were investigated within this study. Particle sizes and pore sizes were selected in a comparable range in order to challenge the dead-end microfiltration. Backwashing experiments round up the investigations. Microfiltration characteristics and particle size measurements, as well as a particle fouling analysis by different methods, were applied in the study in order to provide a comprehensive picture of particle deposition and particle fouling structuring. The particle removal efficiency was particle-size-dependent, and especially small particles were further reduced during the proceeding filtration, while the larger particles were already removed within the first minutes of filtration. This observation was attributed to the pore blocking (internal and/or complete) and build-up of the filter cake. The difference in the particle-fouling structure at low and elevated filtration pressure significantly influences the backwashing efficiency. The particle fouling resulting from low-pressure filtration was completely removed due to the backwashing procedure applied, while an increased filtration pressure resulted in a different particle-fouling structure, which negatively influenced the backwashing efficiency. This knowledge of the formation and structure of the MP particle fouling and its removal by backwashing is a prerequisite for further process development.
Sign in to start a discussion.
More Papers Like This
Kinetic and mechanistic analysis of membrane fouling in microplastics removal from water by dead-end microfiltration
Researchers analyzed membrane fouling during microplastic removal by microfiltration, finding that polyamide particles caused more fouling than polystyrene due to higher hydrophobicity and smaller size, with pore blocking followed by cake layer formation as the dominant fouling mechanisms.
Removal of Polypropylene Particle Contaminants Using Membrane Technology to Mitigate Microplastics Pollution in the Environment
Researchers tested the ability of different membrane types to remove polypropylene microplastic particles from water, evaluating separation efficiency under varying conditions. Membranes achieved high removal rates for particles above a threshold size, with performance depending on membrane pore size, material, and operating pressure.
Dataset of paper "Kinetic and mechanistic analysis of membrane fouling in microplastics removal from water by dead-end microfiltration"
This is the dataset for a study on how membrane fouling occurs during microplastic removal from water by dead-end microfiltration. The data include measurements of particle size, filter membrane characteristics, and fouling kinetics essential for optimizing water treatment processes.
Experimental Evaluation of the Process Performance of MF and UF Membranes for the Removal of Nanoplastics
Researchers evaluated microfiltration (MF) and ultrafiltration (UF) membrane performance for removing polystyrene nanospheres (120 and 500 nm) from water, finding that UF membranes can achieve high removal of nanoplastic particles that conventional wastewater treatment misses.
Mitigation of membrane particulate fouling by nano/microplastics via physical cleaning strategies
This study assessed physical cleaning strategies for removing nano- and microplastic fouling from membrane surfaces used in water treatment, finding that backwashing and chemical cleaning effectiveness varied by plastic particle size and surface charge.