Abstract：
:A photobioreactor (PBR) coupled with ultrafiltration (UF) system was developed with goals of microalgae cultivation, harvest, and membrane fouling control in the anaerobic digestion effluent purification. Firstly, three-sequencing batch PBRs were started-up with suspended Chlorella vulgaris (C. vulgaris, SCV), immobilized C. vulgaris (ICV) and immobilized C. vulgaris with powdered activated carbon (ICV + PAC). The results exhibited high DOC degradation (66.61%-84.35%) and completely nutrients (nitrogen and phosphorus) removals were attained in PBRs. This indicated bacterial-microalgal consortiums enhanced biodegradation and PAC adsorption accelerated photodegradation. During the microalgae harvest by UF, immobilized microalgae beads protected cells integrity with less debris and intracellular/extracellular organic matters lysis. Moreover, the cake layer in ICV + PAC could even serve as a dynamic layer to entrap the residual pollutants and control membrane fouling. Hence, membrane fouling mitigation and ADE purification were realized during the microalgae harvest process in the ICV + PAC.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Xie B,Gong W,Yu H,Tang X,Yan Z,Luo X,Gan Z,Wang T,Li G,Liang Hdoi
10.1016/j.biortech.2018.07.110subject
Has Abstractpub_date
2018-11-01 00:00:00pages
139-148eissn
0960-8524issn
1873-2976pii
S0960-8524(18)31039-3journal_volume
268pub_type
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