Odour was increasingly an issue for many wastewater treatment plants. When planning permission is required for new / uprated works, the Environmental Impact Statement often contains odour abatement as a mitigating measure.
Established technologies included: wet chemical scrubbers; biofilters / bioscrubbers; activated carbon and dry chemical absorbents. These provided good levels of abatement although were costly and still have key issues surrounding the equipment eg.
- No abatement process works well unless it is part of a well-designed system with enclosures and ventilation. Are these satisfactory?
- How reliable are odour abatement systems? Each established process has its own issues concerning reliability. Have these been addressed?
- With abatement requirements increasing, how do processes perform vs, these?
- Carbon / chemical absorbents can run to exhaustion / failure. Has this been overcome?
Benefits to Clients
- Better understanding of abatement systems to improve the balance of risk vs. cost and to enable cost effective designs
- Reduced risk of failure and the potentially large costs associated with failure
- Pooling of operation / performance data to give feedback on a large number of systems.