Taking scoria as an adsorbent material,we studied its adsorption effect on SO_4~(2-) in low temperature water and its influence factors.The experimental results show that the scoria has a good adsorption effect on SO_4~(2-).When the initial mass concentration of SO_4~(2-) is 100—1 000 mg/L,the adsorption amount increases with the increase of the initial mass concentration.Whenρ(SO_4~(2-))=1 000 mg/L,the maximum adsorption amount is 6.42 mg/g,and the shortest equilibrium time is 4 h.The optimum pH for adsorp...