Title :
Research on Degradation Rule of Nitrite and Ammonium in ASBR with ANAMMOX
Author :
Yi, Yuan ; Yong, Hung ; Huiping, Deng
Author_Institution :
Dept. of Environ. Sci. & Eng., Suzhou Univ. of Sci. & Technol., Suzhou, China
Abstract :
Bio-degradation rule of nitrite and ammonium was investigated in an Anammox ASBR with nonwoven fabric carriers. Research results showed that there were two different phases in the process of nitrite and ammonium degradation. One was the increase of degradation average rate, the other was the decrease of degradation average rate. Both nitrogens were mostly degradated in primitively 60 min. And nitrite removal ratio and decay rate were always higher than those of ammonium. But the gap of rates between them declined with time, and two rates were almost at the same speed in last 20 mins. First order exponential decay model could well simulate the substrate decay process in ASBR with fabric nonwoven carriers behind 20 mins.
Keywords :
ammonia; biodegradable materials; bioreactors; fabrics; nitrogen compounds; oxidation; thin films; Anammox ASBR; NH4; NO2 -; ammonium degradation; anaerobic ammonium oxidation; biodegradation rule; biofilm reactors; first order exponential decay model; nitrite degradation; nitrite removal ratio; nonwoven fabric carriers; substrate decay process; time 20 min; time 60 min; Biomass; Costs; Degradation; Electrons; Fabrics; Inductors; Kinetic theory; Microorganisms; Nitrogen; Oxidation; Anammox; bio-film reactor utilizing non-woven fabric carriers; degradation rate; first order exponential decay model;
Conference_Titel :
Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on
Print_ISBN :
978-0-7695-3682-8
DOI :
10.1109/ESIAT.2009.278
