In the modern world of wastewater treatment, control of odours has moved from an afterthought to a primary design consideration for most collection and treatment facilities.

Any wastewater that is collected, conveyed or treated has the potential to generate and release nuisance odours to the surrounding area. Most odour problems occur in the collection system, in primary treatment facilities and in solids handling facilities, generated because of anaerobic or “septic” conditions.

The most recognisable gas is H2S, which is a by-product of “sulphate-reducing bacteria” and has a low solubility in the wastewater. Aside from its strong, rotten-egg odour, it can cause severe corrosion problems as well. Other equally offensive gases formed include ammonia, amines, organic sulphides (DDS and DDMS) and mercaptans.

Our range of vapour-phase technologies ventilate the point sources of odour problems (wet wells, headworks, etc.). For air treatment, the ventilation system is designed to maintain a negative pressure on the area  to prevent the “leakage” of odorous air from vents, manways, access hatches or other areas. A correctly designed ventilation system will reduce the corrosion potential by removing acidic gases and introducing fresh air.

Bioaction odour and corrosion treatment systems will:

  • Prevent odorous air ‘leakage’ from vents, manways, access hatches etc.
  • Reduce asset degradation caused by corrosive gases
  • Improve occupational safety when working around hazardous gases
  • Allow you to meet strict environmental compliance
  • Improve community relations

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