Bergsten-Torralba Ludmila R, Nascimento C R S, Buss Daniel F, Giese Ellen C
Instituto Oswaldo Cruz (IOC)-FIOCRUZ, Rio de Janeiro, RJ Brazil.
Instituto Nacional de Controle de Qualidade Em Saúde (INCQS)-FIOCRUZ, Rio de Janeiro, RJ Brazil.
3 Biotech. 2021 Nov;11(11):460. doi: 10.1007/s13205-021-03004-2. Epub 2021 Oct 15.
Lanthanum (La) is a light rare-earth element that plays an essential role in manufacturing technological products, clean technologies, medical products, electron cathodes, scintillators, fluorescent lamps, and fertilizers. This study is the first investigation of La biosorption using inactive lyophilized biomass from INCQS 40,211. The maximum sorption capacity (q) for was 7.81 mg g. La biosorption followed the Freundlich model, where the biosorption system possibly multilayer coverage of by lanthanum ions. The kinetic data for the adsorption process obeyed a pseudo-second-order ( > 0.92), indicating chemical sorption. The results indicated that inactive lyophilized biomass from INCQS 40211are an excellent candidate for removing light rare-earth elements from aquatic environments.
镧（La）是一种轻稀土元素，在制造技术产品、清洁技术、医疗产品、电子阴极、闪烁体、荧光灯和肥料方面发挥着重要作用。本研究首次对使用来自INCQS 40,211的无活性冻干生物质进行镧生物吸附进行了调查。其最大吸附容量（q）为7.81 mg/g。镧生物吸附遵循弗伦德里希模型，其中生物吸附系统可能是镧离子对其的多层覆盖。吸附过程的动力学数据符合伪二级动力学（R²＞0.92），表明是化学吸附。结果表明，来自INCQS 40211的无活性冻干生物质是从水生环境中去除轻稀土元素的极佳候选材料。
