Post-Treatment of Anaerobic Bioreactor Effluent Using Jet Loop Reactor (JLR)

A novel post-treatment system, jet loop reactor (JLR), was proposed for anaerobic bioreactor effluent polishing purposes. The performance of the JLR, with respect to residual organics, total Kjeldahl nitrogen (TKN) and ammonia-nitrogen removal at different hydraulic retention times (HRTs), was the main focus of this study. The JLR, on average, was capable of removing approximately 99% of ammonia-nitrogen and 95% of TKN at HRTs of 8 and 5 h, respectively. The integrated system had an average removal of more than 85% of total BOD and COD and more than 95% of filtered BOD and COD. However, the JLR did not have a consistent performance due to dynamic MLSS concentration (and SRT). Overall the results indicate that the JLR can be considered as a feasible alternative for post-treatment of anaerobic bioreactor effluent.