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Novel insight into the process of nutrients removal using an algal biofilm: The evaluation of mechanism and efficiency

K. Sukačová, R. Kočí, M. Žídková, T. Vítěz, M. Trtílek,

. 2017 ; 19 (10) : 909-914.

Language English Country United States

Document type Journal Article

Persistent link   https://www.medvik.cz/link/bmc18010738

Eutrophication of water by nutrient pollution remains an important environmental issue. The aim of this study was to evaluate the nutrient uptake capacity of an algal biofilm as a means to treat polluted water. In addition, the study investigated the nutrient removal process. The algal biofilm was able to remove 99% of phosphorus within 24 hours of P addition, with the PO4-P concentration in inflowing water ranging from 3 to 10 mg L-1. Different patterns of phosphorus and nitrogen removal were observed. Daily quantity of removed NO3-N ranged from 2 to 25% and was highly dependent on solar irradiance. Precipitation of phosphorus during the removal process was studied using X-ray diffraction analyses and was not confirmed in the biofilm. The biofilm system we constructed has a high efficiency for phosphorus removal and, therefore, has great potential for integration into wastewater treatment processes.

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