The unique environments across Aotearoa mean filtration solutions too, need to be unique. The Lakes District Health Board (LDHB) processing plant is within close proximity to Geothermal activity, which meant thinking outside the box when it came to finding a solution to the Sulphur dioxide wafting through the air. Sulphur dioxide is a corrosive gas that affects electronics and other mechanical machinery. It is often likened to the smell of rotten eggs, creating an unpleasant environment to work in.
Fortunately for LDHB, Filtercorp are experts in removing nasty smells and chemicals in the air, formulating a dual action media to combat the gases effects. A common way to mitigate both the corrosive nature of the gas and the smell, is to use an activated carbon or other impregnated granular media. In this case Filtercorp recommended a zeolite impregnated with Potassium permanganate called HS-600.
Our customer approached us with a need to mitigate the effects of the gas, as they’d been using activated carbon in this capacity for some years. Activated carbon while useful in many applications, suffers greatly when high moisture is present, as this is absorbed by the carbon and forms a barrier inhibiting its ability to capture gas phase chemicals. It also has a high fine dust load which can coat fan coils and present additional challenges.
Hydrosil’s HS-600 uses reactive chemistry to oxidize various pollutants. The HS-600 is zeolite impregnated with 6% potassium permanganate (KMnO4). Its’ high impregnated level of KMnO4 and insignificant dusting attributes make it an ideal media for gas phase filtration. The HS-600 is designed for removing acid gases, aldehydes, amines, and various hazardous air pollutants.
Lakes DHB were able to successfully use HS-600 to remove the unwanted gas phase chemical and help prolong their plant life, as well as patient comfort.
