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Filtration

Filtration

Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.

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Measuring Sub-23 Nanometer Real Driving Particle Number Emissions Using the Portable DownToTen Sampling System

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Correction: Progress on particulate matter filtration technology: basic concepts, advanced materials, and

Hui Liu¹, Chunyan Cao, Jianying Huang

¹National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, P. R. China.

|January 9, 2020

Summary

This correction clarifies details in a review on particulate matter filtration. It ensures accurate information on advanced materials and filtration performances for improved scientific understanding.

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Area of Science:

Environmental Science
Materials Science
Chemical Engineering

Background:

Particulate matter pollution poses significant environmental and health risks.
Effective filtration technologies are crucial for mitigating air pollution.
Recent advancements in materials science offer new possibilities for high-performance filters.

Purpose of the Study:

To provide a comprehensive overview of particulate matter filtration technologies.
To discuss the fundamental concepts, advanced materials, and performance metrics of filters.
To highlight the progress and challenges in the field of particulate matter filtration.

Main Methods:

Literature review of recent research on particulate matter filtration.
Analysis of various filtration mechanisms and materials.
Comparison of the performance of different filtration technologies.

Main Results:

Detailed discussion on nanomaterials, membranes, and composite materials for filtration.
Evaluation of filter efficiency, pressure drop, and durability.
Identification of key trends and future research directions.

Conclusions:

Filtration technology is rapidly evolving with new material discoveries.
Optimizing filter design and material selection is key to enhancing performance.
Continued research is needed to develop cost-effective and sustainable filtration solutions.