【摘要】 采用海藻酸钠-钙凝胶球、海藻酸钠-钙-铁(Ⅲ)凝胶球、海藻酸钠-铁(Ⅲ)凝胶球对水体中单宁酸和没食子酸进行吸附实验研究。结果表明,对50mL(50mg/L)的模拟污水进行吸附,海藻酸钠-铁凝胶球和海藻酸钠-钙-铁(Ⅲ)凝胶球的吸附效果优于海藻酸钠-钙凝胶球,吸附120min后,使用Fe(Ⅲ)凝胶球对单宁酸的去除率可达97%,对没食子酸的去除率可达99%,对两种物质的吸附量分别为8.0、8.3mg/g,使用海藻酸钠-钙-铁(Ⅲ)凝胶球对单宁酸、没食子酸的去除率可达84%和97%,对两种物质的吸附量分别为7.0、8.0 mg/g。饱和吸附后海藻酸钠-钙-铁(Ⅲ)凝胶球可以再生利用,对单宁酸的去除效果随着降解再生次数的增加而降低。更多还原

【Abstract】 The test results of adopting Tannic acid and Gallic acid in water by new type High Polymer(iron(Ⅲ)-alginate、calcium-alginate、calcium-iron(Ⅲ)-alginate gel beads) indicated that the iron(Ⅲ)-alginate and calcium-iron(Ⅲ) alginate gel beads had very strong adsorption for Tannic acid and Gallic acid.When the initial concentration of Tannic acid and Gallic acid were 50 mL(50mg·L-1),the removal rate reached above 97% and 99%,the adsorption amount was 8.0 and 8.3 mg·g-1 by AG-Fe(Ⅲ) gel beads during 120 min adsorption;the removal rate reached above84% and 97%,the adsorption amount was 7.0 and 8.0 mg·g-1 by AG-Ca-Fe(Ⅲ) gel beads on the same condition.AG-Ca-Fe(Ⅲ) gel beads which saturated adsorption can be utilized after regeneration.To the tannic acid the elimination effect reduces along with the degeneration regeneration times increased.更多还原