Fig. 1From: Effects of common groundwater ions on chromate removal by magnetite: importance of chromate adsorptionChromate sorption envelopes in magnetite after 24 h in the following background electrolyte solutions a Na2SO4 b NaNO3. Black squares and grey circles represent low (0.0016 M Na2SO4, 0.01 M NaNO3) and high (0.016 M Na2SO4, 0.1 M NaNO3) ionic strengths, respectivelyBack to article page