Leather industry

The wastewater from leather production contains dissolved lime from the liming process, tanning salts, organic pollutants and usually a high nitrogen load. Treatment is carried out by screening, detoxification (chromium salts, sulphides) and biological treatment in an activated sludge plant with nitrification and denitrification. The robust FUCHS aerators continue to operate reliably even when lime precipitates and forms crusts.