Chemical products for industrial and scientific purposes, namely, chemical products for the reduction of pollutants in sewage systems; filter materials, namely, chemical preparations in the nature of filtering materials in the water treatment industry; filter substances, namely, mineral substances in the nature of filtering materials in the water treatment industry; filter carbon; chemical products used in industry, namely, fluorine compounds; toxic gas neutralizing agents being toxic gas neu...

Treatment of waste water, water, air and exhaust air; purification of contaminated waste water, gases, water, air and foams; deodorization of exhaust air, air and gases