You have no items in your shopping cart.
The calcium ions supplied by gypsum act as electrolytes in the flocculation of colloidal particles. For example, gypsum applied at rates of 100-500 mg/liter substantially reduced turbidity in one study. However, similar reductions in turbidity, were achieved using 20-25 mg/L of alum, which is a more cost effective treatment.
The calcium ions supplied by gypsum act as electrolytes in the flocculation of colloidal particles. For example, gypsum applied at rates of 100-500 mg/liter substantially reduced turbidity in one study. However, similar reductions in turbidity, were achieved using 20-25 mg/L of alum, which is a more cost effective treatment.