Sewage odours were being released at this pump station near Melbourne NSW, resulting in complaints from the nearby neighbour. Odorous air was being pushed out of the wet well through gaps in the access covers, a common scenario. Upstream chemical dosing was not proving effective.
Odour complaints stopped immediately. Air was no longer being forced through the access covers. The utility stopped dosing and still no complaints. Decommissioning this dosing system would save an estimated $70,000 per year.
A Green Dome Odour Filter was installed and connected to the wet well. This allowed the pump station to vent through the Filter. Activated carbon media adsorbed the odours preventing them being released.