Abstract：
:In this study, pharmaceutical wastewater with high total dissolved solids (TDSs) and chemical oxygen demand (COD) content was treated through a sequential anaerobic-aerobic treatment process. For the anaerobic process, an up-flow anaerobic sludge blanket (UASB) was applied, and a COD removal efficiency of 41.3±2.2% was achieved with an organic loading rate of 8.11±0.31gCOD/L/d and a hydraulic retention time of 48h. To evaluate the salinity effect on the anaerobic process, salts in the wastewater were removed by ion exchange resin, and adverse effect of salinity was observed with a TDS concentration above 14.92g/L. To improve the anaerobic effluent quality, the UASB effluent was further treated by a membrane bioreactor (MBR) and a sequencing batch reactor (SBR). Both the UASB+MBR and UASB+SBR systems achieved excellent organic removal efficiency, with respective COD removal of 94.7% and 91.8%. The UASB+MBR system showed better performance in both organic removal and nitrification.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Shi X,Lefebvre O,Ng KK,Ng HYdoi
10.1016/j.biortech.2013.11.045subject
Has Abstractpub_date
2014-02-01 00:00:00pages
79-86eissn
0960-8524issn
1873-2976pii
S0960-8524(13)01761-6journal_volume
153pub_type
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pub_type： 杂志文章
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更新日期：2013-07-01 00:00:00
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