Biofiltration is a great way to naturally and organically remove odorous bacteria that would otherwise pollute the atmosphere
Biofiltration is the energy-efficient technology for the control of volatile organic compounds (VOCs). This process controls odours from wastewater treatment facilities, compost facilities, rendering plants and other odour-producing operations.
Biofiltration uses a media mix of natural carbon and trace elements to create an active biological bed through which VOCs are passed. Contaminant compounds diffuse from the gas phase to the liquid or solid phase in the media bed. They can then transfer to a natural biofilter layer like Azwood® biofilm, where microbial growth, from micro-organisms, occurs, which biodegrades those contaminants. When working efficiently, a natural biofilter removes more than 90% of air pollutants, including those that some agencies class as hazardous such as hydrogen sulfide.
New Zealand councils have a responsibility to protect the public health and minimise damaging discharges into the environment.
Maintenance of biofiltration systems involves media replacement, moisture control of the filter bed, hardware upkeep and some special requirements depending on the specific biofilter chosen. Most biofiltration systems provide for automatic monitoring and logging of gas temperatures, pressures, humidity and flow rate. Bed media and filtration require manual testing.