enviro – Enviro Air

From Danger to Defense – The Power of Venturi Scrubbers in Food Processing

Food recalls are occurring with increasing frequency and expense, creating substantial financial and reputational challenges for food companies. The costs – both direct and indirect – continue to climb, driven by factors like faster production processes, and regulatory oversight.

Tackling the Issues: Product Quality and Cross-Contamination

Fine particulate removal remains a persistent challenge in food processing, especially when handling ingredients like flour, powdered milk, spices, sugar, and starches. The processing and transfer of these materials commonly generate fine dust and particulate matter, which can remain airborne or settle on surfaces, creating risks for product quality, worker safety, and regulatory compliance.

Enter the Venturi Scrubber: Revolutionizing Air Pollution Control

Venturi scrubbers are advanced wet scrubbing systems engineered to remove fine particulate matter, and gases in industrial exhaust streams. They operate by channeling polluted air through a narrow “Venturi throat,” mixing forcefully with a liquid spray. The resulting turbulence maximized contact between pollutants and droplets, efficiently capturing particulate before releasing clean air. Wet Scrubbers Enviro Air

Key Benefits of Venturi Scrubbers

Advantages	Description
Optimal Particle Removal	Exceeds 99% for fine and ultra-fine particulates
Versatile Process Handling	Effective with hot, moist and particle-rich exhaust
No	No
Enhanced Safety	No danger of fire or explosion linked to combustible dusts
Superior engineering	Less maintenance, minimal downtime
Customizable	Adapts to process needs and contaminant types

EnviroAir’s Venturi scrubbers are widely utilized beyond the food processing sector; industries such as chemical manufacturing, power generation, and metal processing frequently depend on this technology for its ability to control a broad spectrum of pollutants, including fine particulate matter, grease removal, and hazardous gases. Their high removal efficiency and versatility make them essential for facilities facing stringent air quality standards and diverse emission challenges.

Since 2001, EnviroAir has collaborated with companies nationwide to address complex industrial air pollution control challenges. By providing advanced dust extraction, air filtration, and comprehensive air quality solutions, EnviroAir technologies help support safe workplace conditions, advance product quality, and help our clients achieve regulatory compliance.

Looking to improve your facility’s air quality? Discover how EnviroAir’s innovative solutions can address your unique challenges. Contact us at 262.594.5891 or Contact Enviro Air

Foundry Sand and Waste Foundry Sand (WFS) Management Solutions

Foundry sand is high-quality uniform silica sand used to make molds and cores for ferrous and nonferrous metal castings. Like many industries, the foundry and metal casting industry face several challenges due to increasing global competition, stringent environmental regulations, emissions, and waste, resulting in sustainability performance issues.

Approximately 100 million tons of Waste Foundry Sand (WFS) is annually generated worldwide by the foundry industry, with approximately 6 to 10 million tons of spent foundry sand generated annually in the United States. Unfortunately, less than 15% of this spent sand in the U.S. is recycled.

Infographic of a US Map depicting states with the largest number of foundries 1 Ohio 2 California 3 Michigan 4 Pennsylvania 5 Wisconsin 6 Illinois 7 Texas 8 Indiana 9 Minnesota 10 Missouri 11 New York 12 Washington 13 Alabama 14 Iowa 15 Oregon

There are many issues surrounding this industry. A key issue impacting foundries is the growing capacity and management of stockpiled waste foundry sand (WFS) as it requires costly space for accumulation. Additionally, there remains a substantial environmental risk associated with stockpiled waste foundry sand due to an increased rate of toxic metal leaching from the WFS. EnviroAir offers solutions to repurpose waste foundry sand through its sand reclamation systems and reduce the need to expand storage capacity and improve production time.

Strict regulations designed to support the industries’ commitment to improve recycling to support the zero-waste goal identify landfills as not the best alternative for dumping. Without efficient technology, foundries are subject to costly disposal penalties that can greatly reduce their profit margins. EnviroAir’s Thermal Sand Reclamation process meets this challenge.

With energy costs impacting approximately 15% of foundry production, companies need to utilize the most energy-efficient technologies in order to receive substantial reductions in cost and harmful greenhouse gas emissions. EnviroAir’s vision is for the future. We continually strive to set the standard for innovative engineering and excel at environmental performance for a wide range of industries. Each and every day, we work hard to improve the impact we have on the manufacturing industry, the environment, and all our clients.

Throughout its 23-year history, EnviroAir has become a leader in developing innovative solutions that process waste sand in the most efficient, cost-effective, and environmentally sustainable way. EnviroAir’s Thermal Sand Reclamation Systems have been proven to reduce the purchase amount of virgin sand, limit excessive waste sand going to landfills, and substantially decrease associated transportation costs. Additional benefits include:

Low operating cost – less than $7.00 per ton
Stronger molds and cores
Improved casting quality
Fully automatic system – minimal manpower to operate
Robust, simple design – low maintenance
No cooling tower to maintain

Understanding the best technology for each client’s unique production needs has been the foundation of EnviroAir’s success and ultimately, the production success of our clients. We offer six thermal sand reclamation models ranging from ¼ to 6 tons per hour. All projects receive expert guidance and the support of experienced engineers to help clients select the most appropriate technological approach for their projects.

Transcript EnviroAir Streamline Operations Drive Innovation Improve Environmental Success Achieve Environmental Sustainability

Now, spent foundry sand can be reclaimed and reused safely, saving energy, and reducing the need for mining virgin materials. An EnviroAir Engineer is here to discuss your options as well as the benefits behind them for your company. Contact EnviroAir Today at 262-594-5891 for more information.

Advancements Made to Paper Trap Technology

EnviroAir recently introduced improvements to their patented, self-cleaning paper trap. The paper trap captures tissue broke collected at our dust capture hoods and floor sweeps to prevent the tissue broke from plugging downstream dust collectors.

EnviroAir saw the need for further improvements when they discovered newer tissue grades were not cleaning as well from paper trap media.

The new paper trap improvements include a re-engineered media design with larger openings and new blow-off nozzle design to enhance the strength air jets in the system.

New Rotary Borings Dryer Released

EnviroAir today announced new technology to meet the demands of smaller foundries and metal recyclers. The Model BD-5 Rotary Borings Dryer has the capacity to dry and de-oil 5 cubic feet/hr of metal chips from a variety of machining operations.

The company has already slated the first system to be developed for a brass foundry that had previously purchased EnviroAir Thermal Sand Reclamation Systems.

“We’re pleased that these new product ideas generated from our advanced technology group have led to this important new development”, stated EnviroAir President, Douglas Stenz. “The systems being developed by EnviroAir will address the growing concern for meeting the challenging environmental regulatory demands”.

As part of the project, EnviroAir also engineered a comprehensive Air Quality Control System developed to treat exhaust gases from the Rotary Borings Dryer. The equipment includes a compact, high-efficiency cyclone for particulate control and a compact recuperative thermal oxidizer for destruction of oil vapor in the exhaust gases.

EnviroAir Delivers Advanced Technology to Mexico

EnviroAir recently announced the shipment of its new Rotary Borings Dryer system to an aluminum castings foundry in Mexico that services the automotive industry.

The Model BD-300 has the capacity to dry and de-oil 10,000 lbs/hr of aluminum chips from machining operations enabling them to be safely remelted in the foundry. This is the second BD-300 Rotary Borings Dryer that EnviroAir has supplied to this customer.

EnviroAir also furnished the auxiliary equipment required for a complete chip processing system including conveyors, bucket elevators, chip wringers, chip storage silo, magnetic separator and vibratory fines separator. Also provided was an advanced Air Quality Control System for treating the exhaust gases from the rotary borings dryer. This system included a recuperative thermal oxidizer for destroying the oil vapor in the exhaust gases and equipment for capturing particulate in the exhaust gases.

Equipment Spotlight: Sweat Furnaces

To a recycler, an object such as an automobile transmission resembles a piece of candy in which the wrapper is more desirable than what’s inside. The aluminum of the casing is more valuable than the steel gears and other contents it holds. But most recyclers find that manually separating such transmission cases from their contents is usually prohibitively costly.

For these recyclers, sweat furnaces offer an effective and affordable way to separate non-ferrous metals such as aluminum from less-valuable iron and steel. Sweat furnaces heat commingled recyclable metals to a temperature that causes the non-ferrous metals to melt and run off, leaving behind steel and other materials that melt at higher temperatures.

At sweat furnace maker EnviroAir, Inc. in Eagle, Wisconsin, CORECO Product Manager Dean Lesch said modern machines like those his company makes provide several appealing features. Compared to traditional sloping hearth sweat furnaces, recyclers don’t need to manually rake off iron and other non-melting contaminants. They also avoid impinging flames directly on molten aluminum, which creates dross. Other designs may also allow iron to dissolve into aluminum. Most importantly, up-to-date equipment meets ever-tougher environmental regulations. Read more