Fig. 5From: Effect of voltage and electrode material on electroflocculation of Scenedesmus acuminatus Media reuse after flocculation. For 12 days Scenedesmus cells were incubated in magnesium, aluminum and zinc (a) as well as iron, copper and brass (b) flocculation supernatant enriched with nutrients. The graphs show the cell growth measured in cells ml−1 monitored every other day. For positive control the cells were incubated in WM.Back to article page