The effects of quantity of diatomaceous earth,adsorption time,temperature,pH value and initial concentration of Fe3+ on adsorptive property of diatomite to Fe3+ were studied by static adsorption.Through by isothermal adsorption test under different temperature,the thermodynamics law of adsorption of diatomite to Fe3+ was initiatively studied.An orthogonal experiment with factors of diatomite amount,adsorption time,temperature,pH value was operated to find out the best adsorption conditions of diatomite raw soil and diatomite acid modificatio...