CAJ | 학술논문

利用水稻秸秆发酵后碱液浸提酸沉淀的方法制备生物质吸附剂，对该吸附剂的性质和含铜废水的吸附性能展开了研究。采用平衡吸附法研究吸附剂的投入量、体系pH 、铜离子浓度对吸附剂吸附水中铜离子的影响。研究结果表明，吸附剂适合处理低浓度含铜废水（铜离子浓度低于100 m g/L，吸附去除率高于80%），当吸附剂用量1.5 g/L、pH 5.0时，对20 m g/L C u2+的去除率达到最大值为96.45%。该生物吸附剂以单分子层吸附为主，吸附等温线符合Langm uir方程，饱和吸附量为61.9763 m g/g，动力学行为符合拟二级动力学模型。
이용수도갈간발효후감액침제산침정적방법제비생물질흡부제，대해흡부제적성질화함동폐수적흡부성능전개료연구。채용평형흡부법연구흡부제적투입량、체계pH 、동리자농도대흡부제흡부수중동리자적영향。연구결과표명，흡부제괄합처리저농도함동폐수（동리자농도저우100 m g/L，흡부거제솔고우80%），당흡부제용량1.5 g/L、pH 5.0시，대20 m g/L C u2+적거제솔체도최대치위96.45%。해생물흡부제이단분자층흡부위주，흡부등온선부합Langm uir방정，포화흡부량위61.9763 m g/g，동역학행위부합의이급동역학모형。
The rice straw m aterials w ere m odified by ferm entation and alkalileaching acid precipitation to prepare a novelbio-adsorbent.The aim of the study w as to identify the underlying characteristics ofthe bio-adsorbenton C u(II)ions.The effectofadsorbentaddition,solution pH and initial concentration ofC u(II)ionson the adsorption capacity ofthe bio-adsorbentw ere studied by equilibrium adsorption approach.The resultsshow ed that the bio-adsorbenthas high adsorption oflow concentration ofcopperions (copperion concentration w as below 100 m g/L,the adsorption rate w as higherthan 80% ),w hen adsorbentdosage w as 1.5 g/L,pH 5.0,the rem ovalrate of20 m g/L C u(II)ions reached to the m axim um value of96.45% . A nd the bio-adsorbentgave priority to m onolayeradsorption process,adsorption isotherm conform ed to the Langm uirequation,the saturated adsorp-tion capacity w as61.976 3 m g/g,and the dynam icsbehaviorconform ed to pseudo-second-orderkinetic m odel.