These special harmless bacteria are held in a housing and grown on a special support (CleanPaQ""). Using a fan, the air emission is passed over the support and the bacteria remove the HAPs before the air is then released to atmosphere. Nutrients and water are trickled over the support on a continuous basis to keep the bacteria healthy.
OdorTeQ BTF systems are available to treat a range of volumes, concentrations and efficiency. Using our CleanBio computer-modelling program, we are able to size the OdorTeQ BTF to meet your requirements.
Resin production and allied industries produce large volumes (10,000 - 100,000 m3/h) of low HAP (Hazardous Air Pollutants) concentration (e.g. styrene 100ppmv) air emissions. Control of these emissions using conventional technology, such as incineration and carbon adsorption, is generally expensive. OdorTeQ BTF offers an alternative that has the potential to be a more cost effective solution.
- Resin Materials Manufacture
- Resin Drying
- Boat building
- Pool Manufacture
- General Fibreglass Fabrication
Emissions that can be treated include:
- Methyl acrylate
- Methyl methacrylate
In all situations, the HAP emission from the workplace must be captured and removed to ensure the health and safety of the workers. Traditionally, this meant enclosing the work place and evacuating large volumes of air and directing it to atmosphere. This approach is now being scrutinised and if either the concentration (mg/m3) or the load (g/h) emitted is above a limit, then control technology is required.
In the majority of situations, the concentration of the HAP in the emission varies from 20 to 500ppmv over a time period depending on the type of work being conducted. The emission control equipment must therefore be able to reduce this concentration to a level where the concentration and mass rate are acceptable to regulatory authorities.
Authorities are gradually reducing the permitted discharge concentration of these compounds to atmosphere. In the case of styrene, the levels are being reduced to 5 -10 ppmv.
Regulation is generally based on the ground level concentration and is governed by health or odour impacts. In the past, resin-based industry has used dispersion through stacks as the method of choice. This has led to a philosophy of moving more air and installation of higher and higher stacks. In many instances, this has just moved the problem, rather than solved it.
Many manufacturers have also realised that worker comfort and temperature control are important components in their operations and high exhaust volumes are counter-productive when trying to optimise these aspects.