A Alizair™ The Alizair™ process avoid the propagation of odors and provide the operating agents with a healthy and safe environment Biogas and Odour Treatment Aquilair™ Aquilair™ is a chemical scrubber which transfers odorous molecules to an aqueous solution. Biogas and Odour Treatment I Idrascreen™ High capacity compact screening units for wastewater pretreatment and solids separation. Screening and Separation