西玛津在H-Y沸石和溶胶-凝胶法制备的多孔二氧化硅上的吸附：模型水和天然水中的对比研究

Adsorption of simazine on zeolite H-Y and sol-gel technique manufactured porous silica: A comparative study in model and natural waters.

作者信息

Sannino Filomena, Marocco Antonello, Garrone Edoardo, Esposito Serena, Pansini Michele

机构信息

a Department of Agricultural Sciences, University of Naples 'Federico II' , Portici , ( NA ), Italy.

b Laboratory of Materials, Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio , Cassino , ( FR ), Italy.

出版信息

J Environ Sci Health B. 2015;50(11):777-87. doi: 10.1080/03601234.2015.1058094.

DOI:10.1080/03601234.2015.1058094

PMID:26357888

Abstract

In this work, we studied the removal of simazine from both a model and well water by adsorption on two different adsorbents: zeolite H-Y and a porous silica made in the laboratory by using the sol-gel technique. The pH dependence of the adsorption process and the isotherms and pseudo-isotherms of adsorption were studied. Moreover, an iterative process of simazine removal from both the model and well water, which allowed us to bring the residual simazine concentration below the maximum concentration (0.05 mg L(-1)) of agrochemicals in wastewater to be released in surface waters or in sink allowed by Italian laws, was proposed. The results obtained were very interesting and the conclusions drawn from them partly differed from what could reasonably be expected.

摘要

在这项工作中，我们研究了通过吸附在两种不同吸附剂（沸石H-Y和实验室采用溶胶-凝胶技术制备的多孔二氧化硅）上，从模拟水和井水中去除西玛津的情况。研究了吸附过程对pH的依赖性以及吸附等温线和准等温线。此外，还提出了一个从模拟水和井水中去除西玛津的迭代过程，该过程能使残留西玛津浓度低于意大利法律允许排放到地表水或下水道中的废水中农药的最大浓度（0.05 mg L⁻¹）。所得结果非常有趣，从中得出的结论部分与合理预期有所不同。