Overview

Extechnology delivered an odour control solution to support planning and neighbour acceptance while keeping pressure drops predictable.

Challenge

Urban location with nearby receptors and limited duct runs; requirement to minimise odour at discharge without increasing system resistance.

Solution

• Primary grease separation at the canopy (baffle/mesh)

• ESP stage for grease/smoke reduction (sized to duty)

• Off‑duct UV‑C/ozone injection (ECOVENT) to treat odour without adding pressure drop

• Final activated carbon polish (Site Safe cartridges) to quench residual ozone and VOCs

Technology Used

• RY5000B Electrostatic Precipitator (ESP)

• ECOVENT UV‑C (off‑duct injection)

• Site Safe Carbon Modules

• Pre‑filters (pleated/bag) ahead of carbon

Outcomes

• Significant reduction in perceived odour at discharge

• Predictable static pressure for easier fan selection

• Planned maintenance regime aligned to TR19 with washable stages
  
  

Consultant Notes

Design maintained recommended face velocity across ESP cells; included BMS/alarm interlocks and DP taps at carbon stage.