Time course of C. vulgaris cell numbers (cells ml1) for 1–4 runs of the CCD. 1st run (WC = 8.5%; SBC = 6.5 g l1); the2nd run (WC = 26.5%; SBC = 6.5 g l1); the 3rd run
(WC = 8.5%; SBC = 13.5 g l1) and 4th run (WC = 26.5%;SBC = 13.5 g l1).
WC: wastewater concentration; SBC: sodiumbicarbonate concentration.