Reference Articles 1 - 100 of 121
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Ineffective Cleaning in Generic Baghouses (.pdf)
In a typical "generic" baghouse application, the cleaning is accomplished by back-flushing the filter with compressed air that travels through an orifice hole in a purge tube (blow pipe) and through a...(read more)
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Dust Collector Keeps Product Shrinkage Below Industry Average
A certain level of lost product, or shrinkage, is an unavoidable part of doing business for companies in the powdered food processing industry. When ingredients are measured out and mixed together,...(read more)
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Enviromentally Friendly Disinfection of A Pharmaceutical Cleanroom (.pdf)
With the growing need for microbiological clean environments, room disinfection is a critical part of maintaining a microbiologically clean environment for a variety of purposes: manufacturing,...(read more)
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Meeting the Production Challenges of High-Brightness LEDs
One highly effective way to reduce LED manufacturing costs involves switching from wet scrubber exhaust abatement systems to combustion-based abatement technology, explains Mike Czerniak of Edwards....(read more)
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Carbon Fiber Emission Control Strategies
Carbon fiber and graphite reinforced polymers are materials that have, and will continue to revolutionize the products we use everyday by making them stronger, lighter and more durable. However, the...(read more)
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Clean Fuels Require Real-time Chemical Analysis (.pdf)
Global demand for fossil fuels continues to rise despite the regulatory pressures to reduce emissions generated by burning such fuels. With economically viable and commercially available alternative...(read more)
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Measurement of Chlorinated Hydrocarbons with an 11.7 PID (.pdf)
The first commercial photoionization detector (PID) was introduced in 1974 (1,2) by HNU Systems. This PID used a sealed short wavelength (121 nm/10.2 eV) UV lamp. In 1979, we introduced an 11.7 lamp...(read more)
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Cleaner Air Comes From Within
Cartridge dust collectors have evolved throughout the last 25 years to deliver cleaner air and long term cost savings, but nothing puts a wrench in progress like using ordinary or unproven replacement...(read more)
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Bio-Oxidation control of Air Emissions from Panel Board Production - A New Direction (.pdf)
Biofilters or bio-oxidation systems have been used for control of air emissions, primarily odors, since the 1960's. Those early uses in the U.S. were largely relegated to odor control, primarily H2S,...(read more)
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Harmonizing Emissions: A Case for Clean Air, Carbon Reduction, and Economic Growth (.pdf)
At the Air and Waste Management Associations (A&WMA) meeting on April 2-3, 2008, in Washington DC, the Environmental Protection Agency (EPA) expressed the need for harmonization between whatever...(read more)
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Effective Particle Control (.pdf)
Today, the cement industry has better media and better testing methods to certify efficiency results. In Europe, the ETU test protocol and in the USA the ETV protocols have proven their value in...(read more)
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Navigating the MACT Maze (.pdf)
The more one hears about Maximum Achievable Control Technology (MACT) and the MACT compliance, the more difficult it is to understand the requirements, regulations and methods necessary to become MACT...(read more)
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Under New Emissions Limits, Elsta Rises to the Challenge
Elsta, a leading power producer in the Netherlands (partly owned by U.S.-based AES Corporation) has always been regarded as socially responsible. Locally, the company built a wall around its entire...(read more)
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AirTest CO2 Monitors & The Seattle School District
Siemens Building Technology provides the building control solutions for the Seattle School District. The school district has been installing CO2 monitors in gyms, auditoriums and some school...(read more)
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CO2 Control In School Gymnasiums
The Coquitlam School District has been able to save $10,000 to $15,000 in annual energy costs for each of its schools by installing CO2 based ventilation control in its Gymnasiums and auditoriums. The...(read more)
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Case Study: Turnkey Installation for New England Container Company
Gerry DiSchino, President of New England Container Company, was under the gun to purchase an air pollution control system to clean up the VOCs emitted from a paint line at their Baltimore, MD steel...(read more)
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Heat Recovery Media: Monolith/Structured vs. Random Packed
Choosing a heat recovery media for an RTO is not as simple as meets the eye. There are numerous misconceptions to overcome and many variables to consider in choosing a heat recovery media; especially...(read more)
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RTO Technical Specifications
Cycle Therm designs, manufactures and installs regenerative thermal oxidizers (RTOs) for the destruction of volatile organic compounds (VOCs), hazardous air pollutants (HAPs) and odorous emissions....(read more)
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Titleist Case Study: There's More Than One Green in Golf
Back in 1999, Titleist was thinking green. Not golf green; environmental green. At the Acushnet Company, maker of Titleist brand golf balls, protecting the environment is a longstanding commitment. So...(read more)
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How to Achieve Maximum Dust Collector System Performance and Efficiency--Plus Significant Savings in Energy, Operational Costs
Call it "The Best of Both Worlds"! Today, for a dust collector to perform to its full potential and your expectations, it is important to usethe advanced surface-loading capa¬bilities of nanofiber...(read more)
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RTO Innovation
Regenerative Thermal Oxidizers (RTOs), have become a common name in the air pollution control industry, and with good reason. This technology has provided general industry with a consistent and...(read more)
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Coating Emission Control
Emission control and the operating costs associated with meeting environmental regulations were nothing new for the Coated Products Division of Brady Corp. The company has been manufacturing coated...(read more)
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Efficient and Reliable Styrene Control Technology
A producer and supplier of corrosion resistant piping systems was looking to improve the reliability and lower operating expenses of an existing air pollution control system at their facility. During...(read more)
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Emission Control for Oil and Gas Plants
The largest U.S.-based independent oil and gas producer and one of the largest independent processors of natural gas and natural gas liquids in North America was in search of new technologies to...(read more)
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Keeping Ethanol Production Green
In an effort to reduce the world's dependence on fossil fuels, there has been a major push towards alternatives. Ethanol has been at the forefront of this movement because it reduces greenhouse gas...(read more)
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Wind Turbine Manufacturer Implements Clean Air Initiative
When you think about generating electricity from wind, clean energy comes to mind. However, the wind turbine production process can be a major source of air pollution without the proper controls in...(read more)
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New Dust Collection System Puts Air Quality Levels Below Hexavalent Chromium (Cr(VI)) Action Level
Thermal Spray Technologies, Inc. in Sun Prairie, Wis., engineers and applies thermal sprayed coatings for a variety of equipment components. These coatings provide corrosion protection, protect from...(read more)
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The Nanofiber Factor - Nanofiber Can Make a Big Difference in Cartridge Filter Performance
Maintaining good indoor air quality in a factory isn't just a matter of choosing the right air pollution control equipment and configuring it to meet the needs of the facility. Selecting the correct...(read more)
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Humidifier Case Study (Vaporstream): Rikshospital; Oslo, Norway
When the new Rikshospital, Norway's largest, opened in Oslo in 1999, it quickly became apparent that the originally-installed humidifiers could not maintain stable, reliable humidification. Particular...(read more)
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Humidifier Case Study (GTS): Region of Waterloo Water Testing Laboratory; Ontario, Canada
When electric utility and maintenance costs at the Region of Waterloo (Ontario, Canada) Water Testing Laboratory became more than the budget could bear, Brian Bechtel, coordinator of energy management...(read more)
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Humidifier Case Study (Ultra-sorb): University of Alberta Hospitals; Edmonton, Alberta, Canada
The Walter MacKenzie Center of the University of Alberta Hospitals is the primary teaching and research institution in the Province of Alberta. With 950 beds for patients, research laboratories and...(read more)
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Volatile Organic Compounds
Our current national air pollution control program is based on the 1970 version of The Clean Air Act law that was passed in 1963. The main purpose of the act is to protect and enhance the quality of...(read more)
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Use of HEPA Filters in Biological Safety Cabinets
Air filtration is a topic affecting everyone's lives, whether it is for occupational safety requirements, environmental or home health concerns. Control of airborne particulates in indoor environments...(read more)
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Case Study: LaFarge upgrades Dust Collectors using the Donaldson® Torit® Dalamatic® Insertable
The expansion of a cement storage warehouse provides the opportunity for dust collection system upgrade and money savings. In response to the increased demand for cement in the fast growing US coastal...(read more)
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Crossflow Scrubber and Air Filtration Pilot System
This design utilizes stage-wise scrubbing and filtering of gases and contaminants in a compact, easy to maintain package. Inherent in the design is the flexibility to collect a diverse range of...(read more)
- Sierra Premium Shake Installation
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How to Properly Maintain and Service Your Oxidizer
Your air pollution control system represents a significant investment in not only initial capital but also ongoing maintenance and operation. Routine inspections performed by your staff combined with...(read more)
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Oxidizer Energy Recovery Options
The mainstream media today is full of allusions to energy awareness and conservation. Just as visible these days are media references to astronomical dollar figures that can boggle the mind. This...(read more)
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How To: Control Process Mist Eliminators
A structured-media mist eliminator is less prone to plugging than conventional knitted-mesh mist eliminators, achieves higher removal efficiencies per unit of pressure drop, and has lower energy...(read more)
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Coal Fired Boiler Baghouse Sonic Horn Case Study (.pdf)
Midwesco's Acoustic Cleaners are high powered acoustic horns designed to prevent costly particulate build-up. Midwesco's horns produce high energy, low frequency sound waves. This is accomplished by a...(read more)
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Dairy Grade Sonic Horns (.pdf)
Sonic horns have been used in industrial baghouse, hopper, silo, and fan applications for more than fifteen years. Dairy Grade Sonic Horns have been used to dramatically reduce powder accumulations on...(read more)
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ePTFE Membrane - Pulse Jet Baghouse (.pdf)
This plant was experiencing a bottleneck at the pulse-jet baghouse, and could not operate the coalfired boiler at full load. This limited the plant capacity during the annual sugar campaign. The...(read more)
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ePTFE Membrane - Reverse Air Baghouse (.pdf)
This utility was load-limited, and could not sustain full-load operations. When dispatch called for 120 megawatts of power, this station could not respond. They were baghouse-limited, running at 11" -...(read more)
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ePTFE Membrane - TDC® Brand Cartridges (.pdf)
ePTFE Membrane solves cartridge media blinding! This South Carolina ceramic plant had a shot blasting application in which their standard spun bond media cartridges would blind quickly upon startup. A...(read more)
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Seamless Tube® Case History (.pdf)
This Mini-Mill was installing a new positive-pressure, reverse-gas cleaned baghouse on their EAF shop, to handle 1,115,000 ACFM of flow with KO61 dust entrained. Their new Permit stated 0.0032...(read more)
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TASK™ America - HEC Cleaning (.pdf)
This Utility operates a pulse-jet baghouse on coal-fired boilers. They use PPS needled-felt filter bags and had installed different PPS bags in 25% of the unit modules for evaluation. After a short...(read more)
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TASK™ America - Testimonial (.pdf)
Midwesco Filter offers this testimonial for your consideration as it relates to TASK America- HEC Cleaning Service. TASK America is another Albarrie innovation shared with Midwesco Filter. "In...(read more)
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Thermo+Plus® Pleated Elements - Coal-Fired Industrial Boiler (.pdf)
Midwesco's TDC brand Thermo+Plus® pleated elements utilize high-tempera¬ture medias and potting compounds for operation temperatures above 275oF. All components meet or exceed the filtration...(read more)
- Case Study
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Offering an Efficient Filter for Improved Indoor Air Quality
Indoor air quality is an important issue for most homeowners today. Homeowners expect the air filter to protect the HVAC equipment as well as provide a clean, nearly dust-free environment. With this...(read more)
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Offering an Efficient Filter for Improved Indoor Air Quality
Indoor air quality is an important issue for most homeowners today. Homeowners expect the air filter to protect the HVAC equipment as well as provide a clean, nearly dust-free environment. With this...(read more)
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Energy Savings Tips for Ducted Weld Fume Systems
The design and location of a weld fume dust collection system's hood, ducting, collector, and fan can collectively add sufficient static pressure requirements to the point where larger, more expensive...(read more)
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Dust Particle Capture (.pdf)
Maximising dust collection as a revenue source may not, at first, seem an obvious way to reduce plant costs. However, Midwesco Filter has shown that by setting the best operating parameters and the...(read more)
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Preventive Maintenance Prevents Disaster and Penalties (.pdf)
Baghouses have been in existence for over 80 years. However, when you ask maintenance or an environmental manager about his baghouse, you won't get much sentiment. All you may hear is a few snarls and...(read more)
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Staying Compliant: Dust Collector (.pdf)
Since the 1990 Clean Air Act amendments were passed into law, the cement industry has had to make a number of modifications to ensure that its manufacturing facilities comply with emissions...(read more)
- Case Studies
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How to Choose an HVAC Air Filter
Indoor air quality is an important issue for most homeowners today. Homeowners expect the air filter to protect the HVAC equipment as well as provide a clean, nearly dust-free environment. With this...(read more)
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How to Choose an HVAC Air Filter
There are many issues and variables to consider when selecting an air filter or an air filtration system. One of the most basic is whether the goal is to focus primarily on protecting the air movement...(read more)
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LEED® (Leadership in Energy and Environmental Design)
The LEED® (Leadership in Energy and Environmental Design) Green Building Rating System is a voluntary, consensus-based program for developing high-performance, sustainable buildings. Based on...(read more)
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Fluke: Particle Monitoring Program During Construction at an Outpatient Cancer Care Clinic
hough it's hardly rare, new construction at a major health care facility is anything but 'business as usual.' A building project can disrupt normal safeguards, create stress and open pathways for...(read more)
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ASHRAE Definitions 52.1
ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers. Efficiency - The ability of the filter to remove stain causing particles from atmospheric air. Expressed as a...(read more)
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Filter Efficiency / Application Guidelines
MERV Rating (ASHRAE Std. 52.2) Dust Spot Efficiency (ASHRAE Std. 52.1) Arrestance (ASHRAE Std. 52.1)...(read more)
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HVAC Air Filtration Choices for Today
It is important to consider a number of factors when selecting an air filtration system. Care should be taken that the system will serve the long range needs of the building, since it is sometimes...(read more)
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Methods of Air Filtration - Mechanical
Methods of Filtration: Straining occurs when a particle is larger than the opening between fibers and cannot pass through. It is a very ineffective method of filtration because the vast majority of...(read more)
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Ventilation for Acceptable Indoor Air Quaility
Specifies that filters with a MERV rating of not less than 6 be installed upstream of all cooling coils. Specifies that gas phase adsorbers (typically activated carbon) be used to control gaseous...(read more)
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Environmental Compliance - Where Do I Start?
Today's environmental compliance is more complicated and changes more frequently than any other aspect of our business. The most frequent question I am asked is, "Where do I start?" My answer is...(read more)
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Practical Application of Broken Bag Detector for Compliance (.pdf)
This article discusses the practical installation of broken bag detection technology for cost-effective compliance with the latest emission standards. A review of the current status of these rules and...(read more)
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Overview of Emission Control Technologies
The objective of this section is to present various VOC thermal oxidation technologies, their strength and weaknesses and the elements required to determine what is the preferred technology for a...(read more)
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Dust and Fume Collectors for Blasting Applications
Wheel blasting generates a very concentrated dust stream compared to room air blasting. The blasting media is usually steel shot. The dust that makes it to the dust collector is a combination of...(read more)
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Dust and Fume Collectors for Pharmaceutical Compounds
Two key concerns are the focus when handling pharmaceutical dusts - the potent, toxic or allergenic properties of the compound as it relates to personnel exposure and the explosion properties of the...(read more)
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Thermal/Flame Spray Dust and Fume Collectors
The potential for fire and explosion is very real when dealing with Thermal Spray and dust collectors. It is imperative that Farr APC be contacted for proper explosion venting and other safety...(read more)
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An Efficient Scrubber
Horizontal crossflow scrubbers using Kimre Inc's monofilament pad material have been in successful service at a Brazilian NPK plant for 21/2 years. They are cheaper both to install and to run than...(read more)
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Basics of Mist Elimination
Mist eliminators have evolved over the years from packed bed types to knitted mesh mist collectors. Knitted mesh mist eliminators achieve much greater efficiency than the packed bed types where dumped...(read more)
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Kimre Mist Eliminators in Sulfuric Acid Plants
B-GON® Mist Eliminators are widely used in the gas cleaning and contact section of sulfuric acid plants. Metallurgical, Oleum Producing, Sulfur Burning, and Regeneration Plants rely on the mist...(read more)
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The State of the Art In Gas Cleaning for the Fertilizer Industry
The fertilizer industry has earned recognition for having contributed directly to increase world grain yields in the past century. Based on the conservative estimate of the world population growth,...(read more)
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How to Buy a Cyclonic Dust Separator
The prospector pans for gold in the gravel deposits along the outside bends of the lower reaches of a mountain stream. The farmer separates the heavier cream from the cow's milk using a centrifuge....(read more)
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Tips for Selecting Highly-Efficient Cyclones
The design and operation of a cyclone for a particular application depends on the proper interaction of these mass, drag and secondary forces. Many formulas using these forces for specifying generic...(read more)
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Understanding Cyclone Dust Collectors
Cyclone separators are the simplest and least expensive dust collection devices for industrial air pollution control. Operation and maintenance are simple because they have no moving parts. This...(read more)
- Donaldson Dalamatic DLMV in Float Glass Plant
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How to Get Cleaner Air: Your Bottom Line for Dust Collection
Government regulations. Employee health and safety. Productivity. These are vital considerations when deciding what type of dust collection technology will help you get cleaner in-plant air. While...(read more)
- Not Just a Workhorse Anymore: Get Cleaner Air With Advances in Baghouse Dust Collection Technology
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Why Does the Gold Cone Work So Well?
The pleated filter cone in the middle of the Gold Cone cartridge has four benefits: 1) adds additional media area to the cartridge to allow for more airflow per cartridge in a more compact space than...(read more)
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Automated Gas Conditioning
Automation of gas conditioning systems is certainly not a new concept. For decades, cement plant personnel have chosen systems with limited control capabilities. Or, they have created their own...(read more)
- Specifying Vessels for High-Pressure Dust Collectors
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Bioscrubber Technology Puts Odors Down for the Count
JEA (formerly Jacksonville Electric Authority), Florida's second largest water and sewer authority, prides itself on being a progressive company. "We have as a goal zero odors outside our facility,"...(read more)
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Bioscrubbing Solves Lift Station's Odor Problem
Like many municipal wastewater treatment authorities, JEA in Jacksonville, FL, is serious about controlling odors from its facilities. When the flow to one of its lift stations increased as a result...(read more)
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Collecting and Testing Dust: Knowing Dust Characteristics Facilitates Ventilation Equipment Selection
In 1998, both the Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health (NIOSH) issued more stringent requirements relating to the use of...(read more)
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Understanding Your Dust: Six Steps to Better Dust Collection
Almost every piece of process equipment is a powder and bulk solids handling plant depends on a dust collector to safely control dust or to reclaim valuable product. So why do most users treat dust...(read more)
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Beta NOx 2000™ Addresses Opacity Issue and Destroys Reddish Brown NOx Plume
Facility and process engineers at William's Advanced Materials in Buffalo, New York needed to replace an older, inefficient scrubber system. A newer high tech absorber would be required to remove both...(read more)
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Beta NOx 2000™ Scrubber and Ventilation System Controls Industrial Wastewater Odors
Heritage Environmental, an Indianapolis, Indiana firm specializing in treatment and reclamation of industrial wastewater from steel mills and other industrial processors, wanted to upgrade their...(read more)
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Beta NOx 2000™ Scrubber System Installed With No Production Downtime
Plymouth Tube, a Hopkinsville, Kentucky manufacturer and finisher of steel extruded shapes, needed to replace an outdated 45,000 CFM scrubbing system. At the same time, they were redesigning their...(read more)
- Catalysis: A Look at the Basics
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City of Atlanta Refreshed with PT-500 Wet Scrubber System
The RM Clayton Water Reclamation Center in Atlanta, Georgia, was preparing for a comprehensive, system-wide modernization and expansion making it the largest treatment plant serving the City of...(read more)
- Controlling Emissions from Halogenated Solvents: Comparing Carbon Adsorption, Thermal Oxidation and Catalytic Oxidation Technologies
- Controlling Volatile Organic Compound (VOC) Emissions in Pharmaceutical Manufacturing: Cost vs. Performance Options for Alternative Solutions
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Dilution for Odor Control: Mixing Exhaust Stream With Fresh Air May be Enough to Eliminate an Odor Problem
In the past, communities have been tolerant about the odors associated with chemical process industries (CPI) activities. An odor from a plant or oil refinery was referred to as "the smell of money,"...(read more)
- Eliminating Atmospheric Discharge of Paint Spray Solvents
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Eliminating Odor From Wastewater
No one likes foul odors - especially people who are not responsible for them yet must live with them daily. Unfortunately, foul odours (in the form of odoriferous roof exhaust) are a fact of life and...(read more)
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Exhausting Process Dust: Grain Processing Corp., Muscatine, IA
While the "confine, seal, suppress" approach to dust control (FEED & GRAIN, February/March 2003) is suitable for many dust control applications, there are new approaches available depending upon the...(read more)
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F-105 Wet Scrubbers Installed at Semiconductor Wafer Fab in Singapore
In order to comply with Ministry of the Environment emission requirements, Project Engineers at Chartered Silicon Partners, Singapore (CSP) needed gas scrubbers for their FAB-6 expansion. They...(read more)
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