WASTEWATER TREATMENT FOR NITRATE AND HALOGENATED ACIDS
Tsvetomila Parvanova-Mancheva, Evgenia Vasileva, Venko Beschkov
Pages: 465-478
Published: 1 Jan 2012
Views: 362
Downloads: 26
Abstract: Important hazardous pollutants of underground water are nitrate ions. Their content in natural water may be due to the use of nitrogen fertilizers as well as of the inadequate treatment of wastewater from households, industry and agriculture. The most appropriate and progressive method for practical denitrification is the biological, combined with the stimulating effect of constant electric field. They are characterized by speed and lack of secondary and waste products. Since all carboxylic acids are still in use, much scientific interest has focused on their biodegradation. The halogenated acids are classified as hazardous substances, contaminating surface and underground water. The strain Xanthobacter autotrophicus GJ 10 is known for its ability to degrade severe chemical pollutants and to use them as a sole carbon source. In the present study the degradation kinetics by entrapped in polyacrylamide gel immobilized cells was compared to those of the free culture. The gels were used in repeated-batch processes and in fed batch ones. High amounds of Monochloroacetic acid (MCA) and Dichloroacetic acid (DCA) were degradated.
Keywords: wastewater, denitrification, nitrate ions, halogenated acids
Cite this article: Tsvetomila Parvanova-Mancheva, Evgenia Vasileva, Venko Beschkov. WASTEWATER TREATMENT FOR NITRATE AND HALOGENATED ACIDS. Journal of International Scientific Publications: Materials, Methods & Technologies 6, 465-478 (2012). https://www.scientific-publications.net/en/article/1003230/
Back to the contents of the volume
© 2026 The Author(s). This is an open access article distributed under the terms of the
Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.
Disclaimer: The Publisher and/or the editor(s) are not responsible for the statements, opinions, and data contained in any published works. These are solely the views of the individual author(s) and contributor(s). The Publisher and/or the editor(s) disclaim any liability for injury to individuals or property arising from the ideas, methods, instructions, or products mentioned in the content.
