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Biological Nitrification Inhibition: Effect of Inhibitor Aniline on nitrifying microorganisms - Tapa blanda

Phuc Thanh, Nguyen; Padmakar Annachhatre, Ajit

 
9783838378961: Biological Nitrification Inhibition: Effect of Inhibitor Aniline on nitrifying microorganisms
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ISBN 10: 3838378962 ISBN 13: 9783838378961
Editorial: LAP LAMBERT Academic Publishing, 2010

Sinopsis

Complete nitrification was investigated with synthetic wastewater containing high ammonium nitrogen concentration and low COD by the activated sludge as a chemo-autotrophic process in the Continuously Stirred Tank Reactor (CSTR). The nitrification process was operated under the optimal conditions to achieve the complete nitrification. Then inhibition of complete nitrification process by adding aniline step wise was studied. It was found that nitrification process started to be inhibited at aniline concentration of 20 mg/L. Ammonium removal efficiency and nitrate formation efficiency were swiftly plunged, especially inhibition of aniline on nitrite oxidation was more than on ammonia oxidation. Fluorescence in situ hybridization (FISH) technique was also used to study the nitrifier population shift for completed and inhibited nitrification. Results shown that inhibitor aniline affected to nitrifying microorganism population. And aniline affected to the reduction of nitrite oxidation bacteria population was more than that of ammonium oxidation bacteria.

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Reseña del editor

Complete nitrification was investigated with synthetic wastewater containing high ammonium nitrogen concentration and low COD by the activated sludge as a chemo-autotrophic process in the Continuously Stirred Tank Reactor (CSTR). The nitrification process was operated under the optimal conditions to achieve the complete nitrification. Then inhibition of complete nitrification process by adding aniline step wise was studied. It was found that nitrification process started to be inhibited at aniline concentration of 20 mg/L. Ammonium removal efficiency and nitrate formation efficiency were swiftly plunged, especially inhibition of aniline on nitrite oxidation was more than on ammonia oxidation. Fluorescence in situ hybridization (FISH) technique was also used to study the nitrifier population shift for completed and inhibited nitrification. Results shown that inhibitor aniline affected to nitrifying microorganism population. And aniline affected to the reduction of nitrite oxidation bacteria population was more than that of ammonium oxidation bacteria.

Biografía del autor

N.P. Thanh, Ph.D.: Environmental Engineering and Management, he worked as lecturer and researcher in the fields of wastewater treatment at Can Tho University, Vietnam. A.P. Annachhatre, Ph.D.: Environmental Engineering, he is currently professor in the field of Environmental Engineering and Management at Asian Institute and Technology, Thailand.

N.P. Thanh, Ph.D.: Environmental Engineering and Management, he worked as lecturer and researcher in the fields of wastewater treatment at Can Tho University, Vietnam. A.P. Annachhatre, Ph.D.: Environmental Engineering, he is currently professor in the field of Environmental Engineering and Management at Asian Institute and Technology, Thailand.

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Editorial
LAP LAMBERT Academic Publishing
Año de publicación
2010
Idioma
Inglés
ISBN 10 
3838378962
ISBN 13 
9783838378961
Encuadernación
Tapa blanda
Número de páginas
88
Contacto del fabricante
no disponible
Persona responsable
no disponible