Nitrogen removal from wastewater of the chemical company Duslo

• Published in: Water Science & Technology Vol. 41; no. 9; pp. 259 - 264
• Main Authors: BUDAY, J, HALASZ, L, DRTIL, M, BODIK, I, NEMETH, P, BUDAY, M
• Format: Conference Proceeding Journal Article
• Language: English
• Published: Oxford Pergamon Press 01.01.2000; IWA Publishing
• Subjects: Additives; Agrochemicals; Applied sciences; Biological and medical sciences; Biological treatment of waters; Biotechnology; Chemical industry; Denitrification; Environment and pollution; Exact sciences and technology; Fertilizers; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; Industrial wastewaters; Influents; Laboratories; Modelling; Nitrogen compounds; Nitrogen dioxide; Nitrogen removal; Organic compounds; Oxides; Pesticides; Pollution; Removal; Rubber; Scale models; Wastewater; Wastewater treatment; Wastewaters; Water treatment and pollution; Denitrification; Chemical industry; Waste water purification; Industrial waste water; Nitrification; Biological purification
• ISBN: 9781900222402; 190022240X
• ISSN: 0273-1223; 1996-9732
• DOI: 10.2166/wst.2000.0220

The results of laboratory scale modelling and real scale performance of the pre- and post-denitrification of a wastewater from the production of industrial fertilizers, pesticides and rubber additives are presented. As a substrate for the pre-denitrification, the biologically degradable organic compounds present in the influent were used. Selected wastewaters from chemical industry were used as a substrate for the post-denitrification. The results of the laboratory scale research of the pre-denitrification were successfully verified in real scale, an efficiency of 97% and 88% was reached for the removal of NO sub(2) super(-)-N and NO sub(3) super(-)-N respectively. The efficiency of the post-denitrification in real scale was 15% from the entering amount of NO sub(x) super(-)-N (NO sub(2) super(-)-NO sub(3) super(-)-N). Pre-denitrification removed about 190 kg NO sub(x) super(-)-N and post-denitrification about 85 kg NO sub(x) super(-)-N daily.