Bulletin of the National Research Centre

Table 4 Removal rate for algae in sedimentation basin

From: The effect of sedimentation by chemical coagulants and the rapid sand filters on algal removal at drinking water treatment plants in Egypt

Algae type	Algal genera	Removal rate %
Diatoms	Synedra	40–90
	Asterionella	75–80
	Melosira	80–90
	Fragilaria	85–100
Green algae	Chlorella	20–50
	Scenedesmus	25–60
	Pediastrum	80–95
Blue green algae	Oscillatoria	40–50
Blue green algae	Anabaena	50–70

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