【摘要】 为了解决水中抗生素和金属离子污染问题,以玉米苞叶为原料制备载锆生物炭,考察其对洛美沙星及镁离子在一元和二元体系中的吸附特性。结果表明:载锆生物炭对两者均具有良好的吸附能力。一元体系中,载锆生物炭对洛美沙星的去除效果在初始pH为3时达到最优,而对镁离子的吸附能力随pH的增加而增加;二元系统中,随着pH的增大,镁离子与洛美沙星之间的吸附关系由竞争抑制逐渐转变成桥接、络合促进。更多还原

【Abstract】 In order to remove metal ions and antibiotics from aqueous environment,the adsorption performances of zirconium-loaded biochar,which was from corn bract,on lomefloxacin and Mg²⁺,were investigated in the single and binary systems. The results show that Zr-biochar has good adsorption capacities for both lomefloxacin and Mg²⁺. In the single system,the lomefloxacin adsorption capacity reaches a maximum when the initial pH is 3. The adsorption for Mg²⁺increases with the increase of pH. In the binary system,as pH increasing,the adsorption relationship between Mg²⁺and lomefloxacin is changing from competitive inhibition to bridging and complexation promotion.更多还原