Walsall Council required an odour, dust and ventilation system for a new Waste Transfer Station at Middlemore Lane handling domestic and commercial waste.
Experience at similar sites shows that waste storage and processing generates significant heat, odour, fumes and airborne dust, leading to poor working conditions and potential environmental compliance issues without effective extraction and treatment.
The specification required three air changes per hour, odour control and dust filtration across a total building volume of 76,291m³, equating to an extract airflow of 228,873m³/hr. Discharge dust levels were required to be below 5mg/m³, with odour emissions controlled to meet Environmental Agency limits.
Exeon designed a high-capacity ventilation, dust and odour control system using a modular Hi-Flo™ activated carbon solution, selected as the most suitable BAT due to performance, footprint and nearby housing.
Odour control is provided via horizontal-bed activated carbon modules with a minimum 1.5-second dwell time, ensuring compliance with the 1,000ouE/m³ discharge limit and allowing for future tightening of limits.
Six modular Hi-Flo™ units with dedicated centrifugal fans provide operational flexibility, reduced airflow during low-use periods and full maintenance redundancy, with CFD modelling used to optimise air distribution and negative pressure.
The solution delivers improved working conditions and full compliance with Environmental Agency requirements.
