Optimization of an integrated sponge - Granular activated carbon fluidized bed bioreactor as pretreatment to microfiltration in wastewater reuse

Publication Type:
Journal Article
Citation:
Bioresource Technology, 2012, 113 pp. 214 - 218
Issue Date:
2012-06-01
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A specific integrated fluidized bed bioreactor (iFBBR) was optimized in terms of organic loading rate (OLR), hydraulic retention time (HRT) and frequency of new sustainable flocculant (NSBF) addition for primary treated sewage effluent (PTSE) treatment. It was observed that iFBBR achieved the best performance with the operating conditions of 4times/day NSBF addition, HRT of 90min and OLR of 8.64kgCOD/daym3. The removal efficiencies were found to be more than 93% of dissolved organic carbon (DOC), 61% of total nitrogen (T-N) and 60% of total phosphorus (T-P). iFBBR as pretreatment of submerged microfiltration (SMF) is successful in increasing the critical flux and reducing the membrane fouling. NSBF-iFBBR-SMF hybrid system led to very high organic removal efficiency with an average DOC removal of 97% from synthetic PTSE. © 2012 Elsevier Ltd.
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