Hydrogen sulphide (H2S) is the well known major foul air contaminant, and Aquatec’s range of tailored BTFs are purpose-built to reducing H2S by over 99% (or down to 0.1ppm). This world class technology provides the best long-term return on investment (ROI) due to the long-life engineered open-cell foam media and recirculation design, which responds exceptionally well variations in odour inlet concentrations.

The BTF utilises random packed media that is continually recirculated to maintain a humid environment that has a consistent pH range and irrigation enabling the propagation of resilient autotrophic biomass that ensures a healthy operating environment. Aquatec’s inhouse engineering team designs and builds systems to meet our clients’ specific requirements on an individual project basis, delivering value adding, cost effective and efficient treatment solutions.

Biogas emissions provide a valuable potential source of recoverable energy. However the presence of (H2S) in biogas can restrict its use as it will adversely impact downstream equipment and cause SOx emissions in thermal combustion of the gas. In addition, the presence of H2S can lead to issues with health and safety as well as cause a potential off-site nuisance condition for the community. Aquatec offers an array of biological trickling filters designed to handle any biogas flow and H2S content. Contact us for more information.

Designed for a more complex range of odour types, the Aquatec BF is most suited for large infrastructure sewerage pumping stations through to medium to large wastewater treatment plants, where the predominate source of odour is other than Hydrogen sulphide (H2S).

Aquatec’s range of tailored BF are designed and built to meet specific requirements of each project, providing cost effective and efficient treatment and reduction of a full range of more complex (non-H2S) odours coming from industry, residential and those created from the collection system itself.

Using patented world class engineered inorganic media with a 20-year design life, this technology provides the ultimate in the combination of total odour removal and whole of life costs. The BF utilises random packed engineered inorganic media that is intermittently irrigated with neutral pH secondary/tertiary effluent or potable water to maintain an environment conducive with the propagation of resilient heterotrophic biomass to remove a wider variety of foul air contaminants along with lower levels of H2S.

Aquatec’s range of tailored ACUs are designed and built to meet such specific project requirements, providing cost effective and efficient treatment whilst reducing all types of foul air contaminants. Configured to suit individual requirements, our ACUs simplify the operational and work health and safety over the life of the unit. Aquatec provides a comprehensive range of carbon varieties, to best treat each type and concentration of odour.

Complementing our end-to-end solution capability, Aquatec provides specialist consulting services aimed at furnishing asset owners with odour control and air treatment options that are data driven and comprehensively defined to ensure that asset owner key drivers are being met. This is achieved by:

• Foul air characterization studies utilising soſtware packages such as Calpuff.
• Air dispersion modelling on treated air emissions to eliminate nuisance foul air.
• Enhance asset owner reputations in their local communities by preventing complaints.

Magnesium Hydroxide (MHL)

Magnesium hydroxide, or MHL, is one of the most common chemicals used for dosing into wastewater streams. Designed for dosing directly into pump stations and rising mains where there are long detention times, MHL dosing systems control the acidity, or pH, of the wastewater to prevent the transfer of Hydrogen Sulphide from liquid form into airborne gas particles, both at the source and the discharge end of long rising mains.

Iron Salts

Dosed directly into a sewer stream, iron salts are a proven technology for long-duration Sulphide control, offering improvement in chemical phosphorus removal.

Designed for applying directly into pump stations and rising mains where there are long detention times, iron reacts with dissolved Sulphides to form Sulphide precipitates, locking the Sulphide into an insoluble form. This reduces the release of Hydrogen Sulphide into the sewer headspace.