Table 3.

Total arsenic concentration [mg/L] in untreated water (raw) and after each column of the adsorption module at various liquid flows.

Liquid flow] [L/h]	Raw water	After 1st column	After 2nd column	After 3rd column
40	2.666	0.108	0.010	<LQM
20	2.61	0.076	0.004	<LQM
8	2.849	0.036	<LQM*	<LQM

^*LQM - result below the limit of detection by analytical method used (< 0.001 mg/L).