Comparison of AnMBR and UASB technologies for treating highly saline phenolic wastewater: overcoming extreme conditions
This study evaluates the long-term operation of an AnMBR and a UASB treating highly saline phenolic wastewater.Analysis of bioreactor performance and microbial community dynamics under increasing sodium and phenolconcentrations is presented.The results demonstrated that compared to UASB,the AnMBR process exhibited higher phenol removal rates.Interestingly,by its absolute barrier,the AnMBR biomass was thriving due to retention of specialized microorganisms under increasing influent concentrations of phenol up to 5 gL-1 and salinity up to 26 gNa+L-1.In contrast,de-flocculation ofbiomass was observed in the UASB under these conditions leading to a severe conversion capacity loss.Microbial community dynamics showed a higher presence of hydrogenotrophic archaea and a lower bacterial diversity in the UASB compared to the AnMBR biomass.These findings highlighted the promising features of AnMBR technology,in widening the application potentials of high-rate anaerobic wastewater treatment and overcoming specific challenges in the treatment of chemical wastewater streams under extreme environmental conditions.
AnMBR UASB salinity,phenol,extreme conditions
J.D.Mu(n)oz Sierra M.J.Oosterkamp W.Wang H.Spanjers J.B.van Lier
Department of Water Management, Section Sanitary Engineering, Delft University of Technology, Stevin Department of Municipal Engineering, School of Civil and Hydraulic Engineering, Hefei University of
国际会议
The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)
北京
英文
299-302
2017-10-17（万方平台首次上网日期，不代表论文的发表时间）