The depletion of ammonium from the synthetic wastewater
(94% and 96% by C. vulgaris and S. rubescens, respectively, within 9 days) was
comparable to studies conducted by Martínez et al. (2000), who described elimination
of ammonia (between 79% and 100%) after 188.25 h (about 8 days), and González et
al. (1997), who reported ammonium removal efficiencies of 90% from agro-industrial
wastewater after 216 h (9 days).