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Filtered by category: Technical Clear Filter

The Latest and Greatest: AFS Corporate Sponsor Webinar on Seal Gas Filtration for API 692 Standards

John Crane recently released a webinar on Seal Gas Filtration to provide insight on API 692, the latest standard for Dry Gas Sealing Systems for axial, centrifugal, rotary screw compressors, and expanders.

In this webinar on Seal Gas Filtration, Rogier Verheijen and Brian Adamson share the John Crane in-depth understanding of the newest API standard and its implication for the industry. Taking a close look at key changes to specifications, the rationale and in-the-field benefits of API 692 are explained in a practical manner, including changes to operation and documentation. Where applicable, API 692 optimized products such as new filtration systems are discussed.

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The Latest and Greatest: AFS Corporate Sponsor Product Spotlight on Antimicrobial Filter Media from PureAir Filtration

PureAir Filtration’s FiberShieldTM is a Nylon 6,6 nonwoven spunbond microfiber material impregnated with silver (Ag) ionic nanoparticles. The silver ionic mesh creates an antimicrobial Zone of Inhibition around and in between the fibers that deactivates viruses, bacteria and fungi. For example, FiberShield deactivates >99.89% of the SARS-CoV-2 (the virus that causes COVID-19).

FiberShieldTM has a basic weight of 34 g/m2 per layer and a pressure drop of 0.11 iwg (27 Pa). The thin and light substrate allows for more pleats in the same size filter housing, increased media surface area and dirt holding capacity, lower pressure drop, and smaller and lighter weight filters. The particle filtration capability is rated as MERV 4. The melting point of the fiber is 265oC, and its heat capacity is 1.47 J/g*K, with thermal stability that can withstand 150°C consistently.

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Nominations Open for AFS Board of Directors, 2nd Vice Chair and Annual Honorific and New Product Awards; Deadline is March 5

Nominations are now open for key AFS leadership positions, including multiple 2-year Board positions (2022-2024) and 2nd Vice Chair, who serves one year as 2nd Vice Chair, a second year as 1st Vice Chair, a third year as Chair and a final year as Immediate Past Chair. All terms begin September 2021.

All nominees and nominators must be current members of the American Filtration and Separations Society. Read the AFS leadership nomination guidelines here.

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New AFS Short Course: Automatic Filtration Technologies for the Chemical Process Industries

The AFS is presenting a new short course, “Automatic Filtration Technologies for the Chemical Process Industries,” which will be taught by industry veteran Barry Perlmutter.

The use of manual filtration solutions, such as plate filters, bag filters and filter presses, can create process problems and operator safety concerns in chemical manufacturing processes.  This course covers automatic technologies designed to help alleviate these potential problems and is designed to relay first-hand experience on the case for automatic filtration solutions.  Case studies are presented for each technology to illustrate existing problems and the improvements experienced with automatic filtration.

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Abstract Submission is Open for FiltCon 2021 Through March 1

AFS FiltCon, our signature spring conference, will be a fully virtual conference and expo this year, with two concurrent tracks taking place Monday-Wednesday, April 19-21, 2021. Attend the full conference or drop in for select sessions that fit your interests and schedule. All presentations will be available for two weeks post-conference for registered attendees.

The three-day schedule will offer remarkable access to technical content. Through two concurrent tracks over three days, the schedule offers a total of 36 technical presentations.

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American Filtration and Separations Society Launches AFS Learning Center

The AFS Learning Center is now fully launched, providing a great wealth of technical knowledge for filtration and separations professionals. Our hub of educational resources represents the many years of technical knowledge we have assembled.

The AFS Learning Center contains two-hour and four-hour virtual courses on a variety of topics designed to educate both novice and expert filtration professionals. Courses are priced affordably with discounts for AFS members. Learn more about joining here.

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Polymer filtration systems: Stop experimenting, start simulating

Guest blog by Paul Hulme, Business Development Manager, John Crane

Before the recent shifts in the global economy, the polymer industry had been expected to grow with a CAGR of 3.9% over the period 2015-2020. The demand for polymers is driven by growth in multiple end use markets, such as packaging, automotive, infrastructure, transport and telecommunication, and mainly from emerging economies. Polymer is continuously substituting metals, glass, paper and other traditional materials in various applications due to its light weight and strength, design flexibility and low cost.

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Keynote Addresses at Virtual Fall Conference Include “The Air We Breathe: What's Inside Matters” and “Filtration and Air Cleaning in the Age of COVID-19”

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the air filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon. To accommodate a wide range of time zones, the virtual conference will take place from 10am to 2pm CST on both days.

The conference includes a keynote address each day:

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Virtual Fall Conference Includes a Session on “Disruptions to the Filtration Industry”

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the air filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon. To accommodate a wide range of time zones, the virtual conference will take place from 10am to 2pm CST on both days.

The conference is offering six sessions covering various industry areas responding to the pandemic:

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Virtual Fall Conference Includes Two Sessions on “Air Filtration for Confined Spaces”

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the air filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon. The conference has been timed from 10am to 2pm CST, to accommodate a wide range of world time zones.

To drill down into specific filtration areas that are responding to the pandemic, the conference is offering six sessions:

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Virtual Fall Conference Includes Session on “Recent Developments in Filter Media”

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the air filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon.

To drill down into specific filtration areas that are responding to the pandemic, the conference is offering six sessions:

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Virtual Fall Conference Includes Session on “Laboratory Testing for Performance Against Bioaerosols”

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the air filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon.

To drill down into specific filtration areas that are responding to the pandemic, the conference is offering six sessions:

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Virtual Fall Conference Includes Session on “Face Masks - Industry Updates”

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the air filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon.

To drill down into specific filtration areas that are responding to the pandemic, the conference is offering six sessions:

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“Challenges Faced by the Filtration Industry During COVID-19 Pandemic” is Theme for AFS Virtual Fall Conference

The filtration industry has been thrust onto center stage during the COVID-19 pandemic. Never before have we had to confront so immediately and intensely the power of an airborne pathogen to endanger the lives of millions, rock public health and lay waste to the world economy.

The American Filtration & Separations Society will devote its entire fall conference on December 2 and 3 to the filtration industry’s response to COVID-19: What we have witnessed, what we have learned, and what is on the horizon.

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Start with the AFS Buyer’s Guide When Seeking Suppliers

Need a new supplier for a filtration product or service? Let the AFS Buyer's Guide be the first place you look. We have cross-refenced the goods and services of our corporate sponsors into an easy-to-explore catalog.

Our Buyer’s Guide is organized first by primary categories:

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AFS Learning Center Presents Two-Hour Courses on Reverse Osmosis Membrane Technology, Membrane Separation Technologies for Biological and Non-Biological Wastewater Treatment, and Metal Additive Manufacturing (3D Printing) in Filtration

The new AFS Learning Center recently announced four two-hour live virtual courses now available for registration. All courses are $195/members and $295/nonmembers, and all employees of AFS Corporate Sponsors (see list here) can register at the member rate.

The upcoming courses include:

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Fighting Viral Outbreaks with Nanofiber Technologies

Wallace LeungBy Wallace Leung, Chair of World Filtration Congress 13; and past Chair Professor of Innovative Products & Technologies in Mechanical Engineering and past Director, Research Institute of Innovative Products & Technologies at the Hong Kong Polytechnic University, Hung Hom, Hong Kong

The recent outbreak of novel coronavirus, also known as 2019-nCoV, has caused a worldwide concern about a potential pandemic. On January 30, the World Health Organization (WHO) declared the new coronavirus outbreak as a global health emergency. As of the writing of this article, the nCoV has infected more than 20,000 people in 24 countries and killed 426, according to official WHO reports.

The virus can spread from human to human. According to the Chinese Center for Disease Control and Prevention, the size of this virus is about 100nm. When airborne or aerosolized, the virus can be attached to nuclei particles, which can be fine particles in the respiratory tracts or saliva and nasal droplets of an infected person, as well as fine particles suspended in air. Regardless, the minimum size of airborne nCoV is about 100nm when attached to a nano-size particle. The 100nm size airborne particle is referred to as nanoaerosol (also known as nanoparticle or ultrafine particle). While the National Institute for Occupational Safety and Health has standardized N95 and N98 at 300nm, there is no standard filtration test for nanoaerosols at 100nm.

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WFC13 Attracts Professionals on the Global Filtration and Separations Frontier

As the rate of technological advance continues to increase exponentially, there are few disciplines that are expected to keep up with as great an amount and variety of needs. Filtration and separations represent one of those disciplines. Our innovations are critical to countless applications in hundreds of industries, from biopharmaceuticals to emission control, from space travel to freshwater scarcity, and from power generation to virus filtration. There is hardly an area on the frontier of technological change that doesn’t depend on filtration and separations.

The International Delegation on Filtration (INDEFI) was founded by filtration professionals in France, UK and the United States and created the first World Filtration Congress in 1974. Its prime mission is to share information and keep up with the increasing problem-solving demands of filtration and separations technology. INDEFI now includes 13 member countries – Austria, Australia, China, Chinese Taipei, France, Germany, Hungary, India, Japan, Korea, Nordics (Denmark, Finland, Norway, Sweden), UK and the Unites States. Held every four years, this gathering is like no other filtration event due to the extraordinary array of technical and educational offerings and based on the number of countries and industries represented among the thousands of attendees.

Now approaching its 13th Congress (September 20-24, 2021 in San Diego), this exceptional technical forum attracts a wide variety of professionals, including scientists, researchers, academic professors, engineers, practitioners, entrepreneurs, end-users, university students of different disciplines and legislators.

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From Farm to (Operating) Table: Air Quality and Health

Paul MaroldGuest blog by Paul Marold, President of Lydall Performance Materials

Clean air is the most essential resource for life. One could live without food for a few weeks, and without water for a few days; but without air, one would only survive a few minutes, if that.

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Effects of Edge Functional Groups on Desalination Performance in Graphene Oxide Membranes

Only 0.78% of the total water on our blue planet can be used in our daily life. Through water treatment, oceans and other saline water, which account for 97.4% of total global water, have the potential to cover this shortage. Membrane-based technology is the currently favored process for desalination, as it consumes low energy, has low operation cost and has great efficiency.

Commercial membranes are currently made of polymers. These membrane channels are hard to control and therefore have low monovalent ion rejection. Furthermore, some of them have a low tolerance for the chlorine used for sterilization and anti-biofouling. Compared with traditional polymer cross-linked membranes, two-dimensional graphene oxide (GO) based membranes have higher chemical and physical stability. GO nanosheets, which act as an important part, can naturally form a well-packed layer-by-layer membrane structure. This kind of unique membrane structure promotes water permeance via low surface friction while maintaining high salt rejection via edge functional groups of GO nanosheets. Hence, the GO membrane has great potential for industrial water treatment applications. GO nanosheet functionalization can greatly improve membrane performance through channel modification. These characteristics are hard to accurately study via experimental methods because of the nanoscale. Therefore, numerical molecular dynamics (MD) simulations are used to zoom into the nanoscale membranes.

Using MD simulation, surface friction of layer-by-layer membrane with various surface oxidation has been widely investigated. Higher surface oxidation has been proved to improve water slip length inside membrane channels. Furthermore, this higher surface attraction can also increase ion adsorption on the surface of channels that additionally increases the ion rejection rate. The edge functionalization on the layer-by-layer GO-based membrane, whose sieving effect has been proposed from experimental works, is rarely studied. It has been reported that edge functional groups have a significant influence on water permeance. Both interaction and geometric effects of edge functional groups were identified with different GO membrane structures. The study of edge functionalization effects is only limited to water transport performance at present. No work about their desalination performance has been reported, although similar researches have been widely studied on single-layer porous GO membranes. In real experiments, however, it’s very hard to prepare membranes with uniform pore size and keep membranes to a single layer structure in atomic thickness. Layer-by-layer membrane structure assembled by functionalized GO nanosheets is much easier. In addition, filtration efficiency can be largely decreased if the pore size is not well-controlled. Therefore, a study of desalination effects of edge functional groups on layer-by-layer GO membrane is still left untouched but necessary to be processed.

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