利用石墨烯-MAR 混合物设计增强型 SAT 以去除中国千金农场示范基地中的 17β-E2。
Design of an enhanced SAT using the graphene-MAR mixture for the removal of 17β-E2 at a demonstration site of Qianjin farm in China.
机构信息
Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China.
Key Lab of Eco-restoration of Region Contaminated Environment, Ministry of Education, Shenyang University, Shenyang, 110044, People's Republic of China.
出版信息
Environ Sci Pollut Res Int. 2018 Oct;25(28):28120-28128. doi: 10.1007/s11356-018-2827-z. Epub 2018 Aug 1.
An adsorption-enhanced soil aquifer treatment (SAT) system was designed to reduce the level of estrogens below the threshold stipulated by the standards. The 17β-E2 adsorption by graphene and MARs (H103) was investigated and an optimum amount of graphene and MARs in the mixture was determined using the linear programming. The kinetics and isotherm characteristics of both adsorbents were well described by the Lagergren pseudo-second order and the Freundlich model, respectively. The 17β-E2 adsorption on graphene and H103 was 88% and 70.37%, and the high temperature was beneficial to the 17β-E2 adsorption on graphene while the thermodynamic behaviors of H103 were in direct contrast to that of graphene. The study found that the maximum economic benefits could be achieved when the mass of graphene and H103 in the mixture is 2.79 g and 13.20 kg, respectively.
设计了一种吸附增强土壤含水层处理（SAT）系统，以将雌激素水平降低到标准规定的阈值以下。研究了石墨烯和 MARs（H103）对 17β-E2 的吸附作用，并通过线性规划确定了混合物中石墨烯和 MARs 的最佳用量。两种吸附剂的动力学和等温线特征均由 Lagergren 拟二阶和 Freundlich 模型很好地描述。石墨烯和 H103 对 17β-E2 的吸附率分别为 88%和 70.37%，高温有利于石墨烯对 17β-E2 的吸附，而 H103 的热力学行为与石墨烯正好相反。研究发现，当混合物中石墨烯和 H103 的质量分别为 2.79 g 和 13.20 kg 时，可获得最大的经济效益。
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