Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7077125 | Bioresource Technology | 2014 | 6 Pages |
Abstract
This study investigated the microalgae biomass production and nutrients removal efficiency from treated sewage by newly developed membrane photobioreactor in which Chlorella vulgaris was cultured in batch flow mode. Its performance was compared with conventional photobioreactor. The results show that the volumetric microalgae productivity was 39.93 and 10.36 mg Lâ1 dâ1 in membrane photobioreactor and conventional photobioreactor, respectively. The nutrients removal rate in membrane photobioreactor was 4.13 mg N Lâ1 dâ1 and 0.43 mg P Lâ1 dâ1, which was obviously higher than that in conventional photobioreactor (0.59 mg N Lâ1 dâ1 and 0.08 mg P Lâ1 dâ1). The better performance of membrane photobioreactor was due to the submerged membrane module in the reactor which acted as a solid-liquid separator and thereby enabled the reactor to operate with higher supply flow rate of cultivation medium. Moreover, in the outflow stage of the membrane photobioreactor, the microalgae culture liquor in the reactor could be further concentrated.
Related Topics
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Authors
Feng Gao, Zhao-Hui Yang, Chen Li, Yu-jie Wang, Wei-hong Jin, Yi-bing Deng,