Back to Search
Start Over
An annular photobioreactor with ion-exchange-membrane for non-touch microalgae cultivation with wastewater.
- Source :
-
Bioresource Technology . Nov2016, Vol. 219, p668-676. 9p. - Publication Year :
- 2016
-
Abstract
- To eliminate the negative impacts of pollutants in wastewater (such as suspended solids, excess N, P, heavy metals) on microalgae growth, an annular ion-exchange-membrane photobioreactor (IEM-PBR) was proposed in this study. The IEM-PBR could avoid direct mixing of algae cells with wastewater by separating them into two chambers. In the IEM-PBR, the nutrients (mainly N and P) in wastewater continuously permeated into microalgae cultures through the ion-exchange-membrane for microalgae growth, while the pollutants hardly permeated into microalgae cultures. Three types of representative wastewater were investigated to evaluate the performance of the IEM-PBR. When cultivated with wastewater containing excess nutrients, high turbidity and excess heavy metals, microalgae biomass concentrations were significantly improved from 2.34, 2.15 and 0 g L −1 in the traditional PBR to 4.24, 3.13 and 2.04 g L −1 in the IEM-PBR. Correspondingly, the removal efficiencies of N and P in wastewater were also greatly improved by using the IEM-PBR. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOTOBIOREACTORS
*BIOREACTORS
*ION exchange (Chemistry)
*MICROALGAE
*SEWAGE
Subjects
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 219
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 117895301
- Full Text :
- https://doi.org/10.1016/j.biortech.2016.08.032