The core activity of Hartmann Wasserrecycling is the development, production and application of biological water and wastewater treatment methods, particularly using inclusion-immobilized microorganisms (EIMO). The company provides solutions for the purification of drinking water and wastewater, including the elimination of contamination and clogging in water treatment plants. It also offers analytical and consulting services to support customers in solving problems in the field of water and wastewater treatment.