The Pet Food Industry
The Aerox®-Injector was initially invented for the animal feed industry, but it soon found application in related sectors such as the pet food industry.
For one of our clients in Europe, we developed an Aerox®-Injector unit that can operate at three ‘speeds’: 5, 10 or 15 kW. This has enabled the client to economise on energy consumption depending on the expected odour emission of each individual production run. Obviously, the choice of ‘speed’ setting has been automated using a link to each specific pet food recipe.
As you can see in the picture, the unit has been placed outside on the roof and therefore takes up no valuable factory space.
Aerox performed pilot tests prior to the realisation of this project and hired the Swiss independent assessment agency Umwelt Controlling & Consulting for impartiality. Using olfactometric measurement techniques, odour reduction rates of more than 90% were measured for various recipes and Aerox unit ‘speeds’.
For the removal of odours from 20,000 – 25,000 m3/h of process air, approximately 10 – 15 kW Aerox capacity is required.
Low Mass, High Stench
As far as odour molecules are concerned, the by-product of pet food production is generally low in mass but high in stench. The Aerox®-injector is an ideal solution in these circumstances.
In Germany, for instance, we placed an Aerox®-Injector at a pet food production plant in the middle of a built-up, urban area. The factory is a low building without a high chimney stack, which meant that the nuisance to those in the vicinity was tremendous. In order to achieve absolute maximum odour reduction rates, an Aerox Polishing Sieve was placed behind the Injector. The Polishing Sieve basically consists of thin layers of either special zeolithe or activated carbon.
Results
The results were staggering. We measured odour reduction of 97% and complaints from locals have been reduced to zero.
These results have been achieved without interfering with the production process in any way. The active oxygen generated by the Injector is injected into the exhaust airflow and requires less than one metre of pipe length to do its job. No chemicals, no waste. And no more stench.
Print