Air & Climate Articles

  • MYTH vs TRUTH: “If my disinfectant residual is always high enough, I don’t have to worry about microbes”

    Monitoring disinfectant residuals (i.e. Free and Total Chlorine and/or Chloramine concentration) is one of the most essential practices in drinking water management programs.  This ensures that sufficient protection is maintained at all points in the distribution system.  The absence of a disinfectant residual means that suppression of microbiological growth is much more difficult and ...

  • How California’s greenhouse gas laws can better serve disadvantaged communities

    Environmental justice advocates are working to ensure the state’s efforts to combat climate change benefit everyone — and the lessons can be applied nationwide. It was a time of year that should have been perfect. Warming temperatures marked Southern California’s gentle return to spring. The grass had shifted from drab to glowing green. The sky, which can be pale and ...


    By Ensia

  • University Environmental Health & Safety Departments: Handling Compressed Nitrogen and Cryogenics

    An explosion at a university research lab in Hawaii last year highlights the dangers of working with compressed gas and the need for safety equipment on campus. Learn the dangers of working with compressed gas, how an oxygen deficiency monitor can help, and campus safety best practices.  Compressed Gas on Campus: Uses and Dangers Compressed gases including ...

  • Hot weather on its way ... Check the condition of your cooling tower

    The approach of summer is a good time to check the performance and, more importantly, the physical condition of your cooling towers. After all, it’s easier to repair a tower when weather conditions don’t put a strain on its cooling capacity. A cooling tower passes air over tiny droplets or the exposed surface of a water film. In both cases, a small amount of water is vaporized, ...


    By Evapco Inc.

  • How Proper Coil Cleaning Increases Savings, IAQ and System Efficiency

    As things begin to heat up this summer, more and more HVAC facility managers and technicians will experience equipment and maintenance headaches. Take for example air conditioning systems. Even a well-maintained HVAC system consumes a lot of electricity, especially during the summer months.  In ...

  • Case Report: ESM30 in lake monitoring

    Background Wuhan is the capital city of Hubei province in central China and has 166 lakes that cover 2,217 square km (856 square miles) and approximately 25% of the city.  This surface water coverage is one of the world’s highest.   The Wuhan Environmental Protection Bureau (WHEPB website: http://www.whepb.gov.cn) is responsible for monitoring the surface water ...


    By Oceanalpha Co., Ltd.

  • TurbEx® COOLING TOWER - Case Study

    This article is about the case study of the TurbeEx® Cooling Tower in operation at a Huhtamaki U.S. pulp & paper facility. Commissioned in late Spring 2016 this TurbEx® COOLING TOWER cools process water at a Huhtamaki U.S. pulp & paper facility using TurboScrubber® fluidized packing to ensure continuous non-clogging operation even with sticky pulp & solids ...

  • Repeatability is King: Up to Tenfold Improvement

    Axetris has improved the repeatability specifications of its mass flow meters and controllers. Repeatability often more important than absolute accuracy Repeatability provides information about the precision, that is, the absolute difference between a pair of repeated test results measured by one instrument under unchanged conditions. To measure precision, the same ...


    By Axetris Ag

  • Sewer Lift Station - Case Study

    Client: The City of Phoenix Facility:  A sewer Lift Station (LS) located directly adjacent  to a residence. (LS 48) Problem: The impact of facility safety and maintenance were main concerns. Decision: The client chose to replace a chemical scrubber with a BOHN BIOFILTER system. ...

  • Pump Station in California - Case Study

    Client: Glorietta Bay Pump Station in Coronado, California Facility:  A Wastewater Pump Station located in a busy public park. Problem: How to eliminate wastewater odors while minimizing the visual impact. Decision: The client chose to use a BOHN BIOFITLE, in-ground biofilter with a grass cover. ...

  • Wastewater treatment plant odor control - Case Study

    Client: Karcher Creek JWWTF in Port Orchard, Washington Facility:  A Wastewater Treatment Plant (WTP) located in a scenic and residential area Problem: How to eliminate wastewater odors with limited space available. Decision: The decision was to build a BOHN BIOFILTER system on the roof of a mixing ...

  • Why You Should Keep Your Air Pollution Control Technology Up To Date

    Did you know that the first crewed spacecraft to leave Earth's orbit, reach Earth's moon, orbit it, and return safely to Earth (Apollo 8) was launched into space using the Apollo Guidance Computer (AGC), which had a real time operating system which enabled the astronauts to enter simple commands to control the spacecraft? The AGC was ...

  • Molecular gas filtration: chemisorption versus physisorption

    Advantages of chemisorption over physisorption in molecular gas filtration. To remove pollutant compounds in air, both spherical and pelletized solid products are widely used. Examples of their application include Indoor Air Quality, Corrosion in Control Rooms, In Vitro Fertilisation, and Odours. What all these ...


    By Bioconservacion SA

  • When Sound Becomes Noise

    Music to the ears of some can equally be perceived as unwanted, irritating noise to others – as illustrated by a recent news article about a Sydney pub forced to cancel live music on Sunday afternoons after five trouble-free years ...


    By Innova Global Limited.

  • Smell and odor nuisance, what is that?

    As Aerox we offer our clients sustainable solutions for the reduction of industrial odor emissions. In the conversations we have with our contacts we often receive questions about how this exactly works, what smell actually is, why something stinks and why we actually are in this market. Hence it is interesting to consider what odor and odor nuisance actually are. In this article we have ...


    By Aerox B.V.

  • Dry Air Scrubber for Propylene Oxide

    Background For decades, Advanced Air Technologies, Inc. has been the leader in air scrubber  technology for abatement of Ethylene Oxide (EtO) emissions.   In fact, AAT, Inc. was founded in 1987 on a unique dry scrubbing, chemi-sorption process for EtO.  The result is a series of fixed bed “Safe-Cell II” dry scrubbers, consisting of the DR-490, DR-50, and ...

  • Applications of a Portable Gas Spectrometer

    In the realm of natural gas processing, enterprises don’t always find it economical to send products back to the lab and wait for test results. Being able to perform on-the-spot, highly accurate compositional analysis with gas chromatography equipment can reduce operational costs and help companies determine on-the-spot accurate gas levels in a natural gas stream. ...


    By Envent Engineering Ltd

  • How important are water, snow and ice layers for the friction?

    A recent research project of the Technical University of Berlin (TU Berlin) aimed to develop a method for predicting the friction coefficient on the road. To achieve this, the team of the university’s automotive engineering section carried out extensive braking tests. For this, an important technical aid from Lufft mustn’t be left ...

  • Why you should get proactive with oxidizer maintenance this spring

    Spring has sprung; the sun is shining longer, flowers and trees are blooming, and the snow is gone (well, in most parts anyway). Plans are being made for summer vacations, graduations, weddings, and oxidizer maintenance. ...

  • Air Pollution in Subway Systems May be Much Worse than we realized

    As anyone who has ridden the subway knows, the air down there is unpleasant. New research done in Canada shows that air pollution levels in Toronto’s subway system are ten times greater than those above ground. It’s a troubling realization for subway-goers, but there are ways to keep these underground systems clean. ...


    By Camfil Ltd

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