摘要

三乙胺改性废聚乙烯材料络合修复含氟水

作者(年代):Mbugua G, Mwangi IW, Swaleh S, Wanjau RN, Ram M和Ngila JC

本文报告了一种负担得起的，环境友好的，可持续的方法来减轻水中氟化物的影响。这种污染物从地壳中的土壤和岩石中滤出，造成了地表水和地下水的污染，对消费者的安全产生了负面影响。与食用氟化物有关的危险包括人类和动物的氟中毒和氟骨症，以及大脑发育受损。这意味着氟离子具有限制消费者智力的能力，使他们终生依赖氟离子。饮料中的氟离子是一种不可生物降解的污染物，需要去除。以前应用的去除方法存在一些挑战，如昂贵、无效和不可再生。本研究调查了从处理的废物中提取的固体聚乙烯材料的使用，从而满足低成本、增值和可持续技术的标准。用叔铵化合物对聚乙烯材料进行改性，使其能与水中的氟离子络合。红外光谱分析证实了该修饰。考察了浓度、温度、pH等络合参数。 The complexation mechanism was found to fit the Langmuir model isotherm having an adsorption capacity of 18.545 mg g-1 and was of Pseudo first kinetics. This indicates that the complexation followed a physio sorption process. The results obtained demonstrated that the heterogeneous material is effective and has a potential application for treatment of fluoride laden water. It is envisioned that the material be packed in cartilages and applied at a point of use to improve the quality of fluoride laden waters and solve the problem of population in areas naturally fluoridated. Every drink taken from these sources is a potential poison that affects both the brain and bones. The use of this modified material to purify water will contribute towards the improvement of the peoples’ self-esteem and make them generous with their smile.