scholarly journals Prototype Ceramic High Efficiency Particulate Air Filter Testing and Filter Media Development for Nuclear Facility Ventilation

2018 ◽  
Author(s):  
J J Haslam
Keyword(s):  
High Efficiency ◽  
Nuclear Facility ◽  
Filter Media ◽  
Media Development ◽  
Air Filter

Study on an Air Filter Material Immobilized with Bio-Antimicrobials

2010 ◽  
Vol 152-153 ◽  
pp. 1519-1524 ◽  
Author(s):  
Jing Quan Yang ◽  
Zheng Wang ◽  
Jin Hui Wu ◽  
Li Mei Hao ◽  
Tao Tian ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Adhesive Bonding ◽  
High Efficiency ◽  
Antibacterial Properties ◽  
Filter Material ◽  
Inhibitory Effect ◽  
Filter Media ◽  
Environmental Friendliness ◽  
Air Filter ◽  
Antibacterial Efficiency

Use of an air filter material combined with antibacterial agents is one of the most effective methods to resolve the problem of air filter contaminated by pathogenic microbes. ε-Polylysine and Natamycin are two biogenic antimicrobials that have been widely applied in recent years because of their high antibacterial efficiency, harmlessness to human body and environmental friendliness. In this paper, a novel antibacterial air filter material was prepared by immobilizing ε-Polylysine and Natamycin onto fiberglass high efficiency air filter media by acrylate adhesive bonding. The mechanical properties, aerosol filtration properties, and antibacterial properties were then evaluated. An improvement in the mechanical properties of the material prepared was seen compared to the untreated filter media. The filtration efficiency of the material prepared for particle aerosols and bioaerosols both greater than 99.997%. Antibacterial efficiency of the material prepared against Staphylococcus aureus and Escherichia coli in suspensions were both greater than 99.99% compared to the untreated filter media. The anti-mildew effect against Aspergillus niger in suspension was strong compared to the untreated filter media. Antibacterial efficiency of the material prepared against bacteria in bioaerosols was greater than 99.99%. Observed with Scanning Electron Microscope, most bacteria on antibacterial filter media appeared to be dead. Thus, antibacterial air filter material prepared by immobilizing bio-antimicrobials on fiberglass had a strong inhibitory effect against gram-positive bacteria, gram-negative bacteria and fungi, with no impairment of the intrinsic properties. This kind of material appears to be promising for application in air cleaning and biological protection fields.

Corrugated Flute Filter Media Packaging Reduces Combustion Turbine Intake Air Filter System Size by 40%

2004 ◽  
Author(s):  
Thomas C. Gahr
Keyword(s):  
Gas Turbine ◽  
High Efficiency ◽  
Three Dimensional ◽  
Initial Pressure ◽  
System Size ◽  
Size Reduction ◽  
Filter Media ◽  
Air Filter ◽  
Filter System ◽  
Self Cleaning

Gas turbine output and mass flow have increased significantly over the years. The current generation of self cleaning air filter systems are large and complex, occupying a great deal of space, and requiring significant amounts of field assembly. A new filter technology developed for gas turbine intake air systems allows for the same high efficiency self cleaning performance to be achieved with a system that has a 40% smaller three dimensional footprint. This new corrugated flute filter media packaging technology not only reduces the size of the intake filter system, but can also reduce the complexity of the installation, shorten field installation time, and reduce the total cost of shipping by up to 50%. The key to this size reduction is a new way to package the filter media that allows for twice the airflow per filter at the same initial pressure loss and filtration efficiency as the current industry standard self cleaning filter systems. This paper will discuss the benefits of corrugated flute filter media packaging, and highlight the size reduction possible in the self cleaning air intake system. The resulting advantages are documented through laboratory and field experience.

Synthesis of CTAB-Functionalized Large-Scale Nanofibers Air Filter Media for Efficient PM2.5 Capture Capacity with Low Airflow Resistance

2021 ◽  
Vol 3 (2) ◽  
pp. 937-948
Author(s):  
Agasthiyaraj Lakshmanan ◽  
Deepak S. Gavali ◽  
Ranjit Thapa ◽  
Debabrata Sarkar
Keyword(s):  
Large Scale ◽  
Filter Media ◽  
Airflow Resistance ◽  
Air Filter ◽  
Capture Capacity

High-efficiency particulate air filter test stand and aerosol generator for particle loading studies

2007 ◽  
Vol 78 (8) ◽  
pp. 085105 ◽  
Author(s):  
R. Arunkumar ◽  
Kristina U. Hogancamp ◽  
Michael S. Parsons ◽  
Donna M. Rogers ◽  
Olin P. Norton ◽  
...  
Keyword(s):  
High Efficiency ◽  
Test Stand ◽  
Particle Loading ◽  
Air Filter ◽  
Aerosol Generator ◽  
Filter Test

Dry Fibrous Air Filter Media

1951 ◽  
Vol 43 (6) ◽  
pp. 1346-1350 ◽  
Author(s):  
Earl Stafford ◽  
Walter J. Smith
Keyword(s):  
Filter Media ◽  
Air Filter

scholarly journals Biological safety cabinetry.

1991 ◽  
Vol 4 (2) ◽  
pp. 207-241 ◽  
Author(s):  
R H Kruse ◽  
W H Puckett ◽  
J H Richardson
Keyword(s):  
Antineoplastic Agents ◽  
High Efficiency ◽  
Class Ii ◽  
Class Iii ◽  
Clean Room ◽  
Air Filter ◽  
Biological Safety ◽  
Design Function ◽  
Laboratory Workers ◽  
The One

The biological safety cabinet is the one piece of laboratory and pharmacy equipment that provides protection for personnel, the product, and the environment. Through the history of laboratory-acquired infections from the earliest published case to the emergence of hepatitis B and AIDS, the need for health care worker protection is described. A brief description with design, construction, function, and production capabilities is provided for class I and class III safety cabinets. The development of the high-efficiency particulate air filter provided the impetus for clean room technology, from which evolved the class II laminar flow biological safety cabinet. The clean room concept was advanced when the horizontal airflow clean bench was manufactured; it became popular in pharmacies for preparing intravenous solutions because the product was protected. However, as with infectious microorganisms and laboratory workers, individual sensitization to antibiotics and the advent of hazardous antineoplastic agents changed the thinking of pharmacists and nurses, and they began to use the class II safety cabinet to prevent adverse personnel reactions to the drugs. How the class II safety cabinet became the mainstay in laboratories and pharmacies is described, and insight is provided into the formulation of National Sanitation Foundation standard number 49 and its revisions. The working operations of a class II cabinet are described, as are the variations of the four types with regard to design, function, air velocity profiles, and the use of toxins. The main certification procedures are explained, with examples of improper or incorrect certifications. The required levels of containment for microorganisms are given. Instructions for decontaminating the class II biological safety cabinet of infectious agents are provided; unfortunately, there is no method for decontaminating the cabinet of antineoplastic agents.

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