Abstract：
:The effect of transient oxytetracycline (OTC) shock on the stability of anaerobic ammonium oxidation (ANAMMOX) process was evaluated in the present study. The shock test was implemented with 155-1731mgL(-1) OTC, lasting for 1 to 3-fold hydraulic retention times, under the nitrogen loading rate (NLR) of 6.72 and 13.4kgm(-3)d(-1). The response of the process was divided into shock and recovery stage and the performance under the stress was indicated by stability index and granule characteristic. In the shock period, nitrogen removal rate (NRR) was ranged from 12.1 to 12.1-4.04kgm(-3)d(-1). The specific ANAMMOX activity (SAA) and heme c content, were respectively reduced by 1.4% and 17.6-29.4%. Foremost, the OTC shock was restorable and the recovery lasted for 4-353h. The robustness of ANAMMOX process was dependent on OTC level, duration of shock and NLR applied.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zhang QQ,Chen H,Liu JH,Yang BE,Ni WM,Jin RCdoi
10.1016/j.biortech.2013.11.053subject
Has Abstractpub_date
2014-02-01 00:00:00pages
39-46eissn
0960-8524issn
1873-2976pii
S0960-8524(13)01769-0journal_volume
153pub_type
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