H+E has established an excellent reputation with its aerobic processes for wastewater treatment in a wide range of sectors including food & beverage, pulp & paper, oil & gas, chemical and mining industries. Using both biofilm and activated sludge processes, microorganisms convert biodegradable waste materials in the biomass into carbon dioxide and water. In addition to this specific substrate degradation, special microorganisms also degrade ammonium ions to nitrate and then into pure nitrogen. This process is known as nitrification and denitrification, and efficiently removes unwanted nitrogen compounds from the treated waste water.
H+E owes much of its core technological expertise for water treatment and pre-treatment using biological processes under both aerobic and anaerobic conditions to PHILIPP MÜLLER® water treatment who started working in this field in 1896. In 1998, H+E integrated this long-established company into its core structure.