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Treating wastewater by indigenous microalgae strain in pilot platform located inside a municipal wastewater treatment plant

Han, Jichang
; 
Laurenz, Thomsen
; 
Pan, Kehou
; 
Wang, Pu
; 
Wawilow, Tatjana
; 
Osundeko, Olumayowa
; 
Wang, Song
; 
Theilen, Ulf
; 
Thomsen, Claudia
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Jacob University Bremen, Germany
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Chemical Engineering
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Abstract
Various resources from a municipal wastewater treatment plant (MWTP) are available for microalgae cultivation plants, suggesting that a combination of these technologies can be used to produce microalgae biomass and remove contaminants at a low cost. In this study, the growth performance and nutrient removal efficiency of an indigenous Scenedesmus sp. in various wastewater media with different exchange patterns were investigated firstly, then transferred to a pilot-scale photobioreactor (located inside a MWTP) for bioremediation use. The temperature and pH of the platform were maintained at 15–30°C and 7.6, respectively. The NH+4− N, NO−3− N, and PO3−4− P of the wastewater could be reduced to below 0.05, 0.40, and 0.175 mg L–1, respectively. Our results indicate that microalgae cultivation using the resources of a MWTP can achieve high algal biomass productivity and nutrient removal rate. Our study also suggests that efficient technology for controlling zooplankton needs to be developed.
Citation
Han, J., Thomsen, L., Pan, K., Wang, P., Wawilow, T., Osundeko, O., . . . Thomsen, C. (2019). Treating wastewater by indigenous microalgae strain in pilot platform located inside a municipal wastewater treatment plant. Environmental Technology, 41(25), 1-11. doi:10.1080/09593330.2019.1604816
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Taylor & Francis
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Environmental Technology
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http://hdl.handle.net/10034/623601
DOI
10.1080/09593330.2019.1604816
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Article
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1479-487X
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https://www.tandfonline.com/doi/full/10.1080/09593330.2019.1604816
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