was cultivated with light at different wavelengths () and irradiation intensities () by applying a coloured tape (CT) as a simple, inexpensive light filter. was cultivated in a standard medium using blue (CT), green (CT), red (CT), yellow (CT) and white (CT) CT to filter the light, as well the unfiltered light (U). The influence of and on specific growth rate (), nutrient removal efficiency (% RE of total nitrogen, TN, and phosphorus, TP), CO fixation rate () and lipid productivity () were evaluated. The highest biomass concentration of 2.26 g L was measured for CT with corresponding , TN and TP , and values of 0.95 d, 92% and 100%, 0.67 g L d and 83.6 mg L d, respectively. The normalised and for U were significantly lower than in CT of 33-50% and 75%, respectively. The corresponding non-normalised parameter values for CT were significantly lower at 0.45 d, 0.18 g L, 15% and 37%, 0.03 g L d and 1.2 mg L d. Results suggest a significant impact of and , with up to a 50% increase in growth and nutrient RE from optimising these parameters.

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http://dx.doi.org/10.1080/09593330.2018.1437778DOI Listing

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