Abstract：
:Purpose of this study is to investigate the stoichiometry and kinetics of anaerobic ammonium oxidation (Anammox) with trace hydrazine addition. The stoichiometry was established based on the electron balance of Anammox process with trace N2H4 addition. The stoichiometric coefficients were determined by the proton consumption and the changes in substrates and products. It was found that trace N2H4 addition can increase the yield of Anammox bacteria (AnAOB) and reduce NO3(-) yield, which enhances the Anammox. Subsequently, kinetic model of Anammox with trace N2H4 addition was developed, and the parameters of the anaerobic degradation model of N2H4 were obtained for the first time. The maximum specific substrate utilization rate, half-saturation constant and inhibition constant of N2H4 were 25.09mgN/g VSS/d, 10.42mgN/L and 1393.88mgN/L, respectively. These kinetic parameters might provide important information for the engineering applications of Anammox with trace N2H4 addition.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Yao Z,Lu P,Zhang D,Wan X,Li Y,Peng Sdoi
10.1016/j.biortech.2015.08.098subject
Has Abstractpub_date
2015-12-01 00:00:00pages
70-6eissn
0960-8524issn
1873-2976pii
S0960-8524(15)01204-3journal_volume
198pub_type
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