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Updated: Feb 8, 2026

Seawater Sampling and Collection
Published on: June 17, 2009
[Recovery Performance of ANAMMOX Process after Inhibition Resulting from Seawater]
Pan-Qing Qi1, De-Shuang Yu1, Jin Li1
1School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China.
Abstract:
An anaerobic sequencing batch reactor (ASBR) was operated to investigate the recovery performance of ANAMMOX reactor after the inhibition of 100% seawater concentration. The results showed that the nitrogen removal performance of ANAMMOX reactor suffered inhibition of high salinity concentration. However, it could enter a period of stable nitrogen removal efficiency again after an interim stable period and a recovery period. The nitrogen removal rate (NRR) could reach 0.52 kg·(m3·d)-1, which was similar to the control group, containing 10% seawater and having a NRR of 0.462 kg·(m3·d)-1. The modified Logistic model and modified Gompertz model were revised and their application field was broadened. The re-modified Logistic model was suggested to be used to simulate the NRR recovery process of ANAMMOX reactor that suffered inhibition of 100% seawater concentration. The doubling time of NRR was calculated to be 11.359 d using the prediction formula established for the recovery time of NRR.
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