【摘要】 采用水解中和法制备了针铁矿,研究了海水中的无机阴离子Cl-、Br-、F-、SO42-和HCO3-对针铁矿吸附磷的影响。结果表明:当存在SO42-、Cl-、Br-和F-时,针铁矿吸附低浓度磷酸盐受到抑制,吸附高浓度磷酸盐时得到促进;而HCO3-对针铁矿吸附磷有着很强的抑制能力;全部组分的主要无机阴离子共同存在时,针铁矿吸附磷受到抑制,酸性条件下的吸附量高于碱性条件。更多还原

【Abstract】 Goethite was prepared by hydrolysis and neutralization method. And then the effect of inorganic anions Cl-, Br-, F-, SO42-and HCO3-in seawater on phosphorus adsorption by the goethite was studied. The results showed that, when SO42-, Cl-, Br-and F-existed, goethite adsorbing low concentration phosphate was inhibited, adsorbing high concentration phosphate was promoted; HCO3-had strong inhibitory effect on the adsorption of phosphorus by goethite; when the main inorganic anionic electrolytes coexisted, phosphorus adsorption by goethite was inhibited, the adsorption amount under acidic conditions was higher than that under alkaline conditions.更多还原