Preventing Environmental Contamination by Nonionic Surfactants and Nickel

IF 1.2 4区材料科学 Q4 ELECTROCHEMISTRY

Transactions of The Institute of Metal Finishing Pub Date : 1998-01-01 DOI:10.1080/00202967.1998.11871227

J. Snukiškis, D. Kaušpėdienė, A. Gefenienė

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引用次数: 3

Abstract

Protecting the environment from contamination by heavy metals and nonionic surfactants, the sorption of oxyethylated alcohols OS-20, alkylmonoethers ALM-10 and nickel has been investigated, on the hydrogen form of Purolite C 106 cation exchanger. The problem is that nonionic , surfactant is not removed by conventional ion exchange. Sorption isotherms were measured, coefficients for intraparticle diffusion were calculated. The sorption of nonionic surfactant from the solution, containing 10 mmol/l, amounts to 400 mg/g for OS-20 and 500 mg/g for ALM-10. The presence of nickel has no appreciable effect on the rate of intraparticle diffusion and the equilibrium sorption of surfactant. The sorption of nickel takes place in the form of both free cations and cations bonded with surfactant. The sorption of nonionic surfactant and nickel in Purolite C 106 cation exchanger was found to be suitable for the simultaneous removal of both contaminants in order to reuse the water, recovered from nickel plating rinsewater, preventing the contamination of environment.

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防止非离子表面活性剂和镍对环境的污染

为了保护环境免受重金属和非离子表面活性剂的污染，研究了氧乙基化醇OS-20、烷基单醚ALM-10和镍在Purolite c106阳离子交换剂氢形态上的吸附。问题是传统的离子交换不能去除非离子表面活性剂。测量了吸附等温线，计算了颗粒内扩散系数。溶液中非离子表面活性剂的吸附量为10mmol /l, OS-20为400mg /g, ALM-10为500mg /g。镍的存在对颗粒内扩散速率和表面活性剂的平衡吸附没有明显的影响。镍的吸附既有自由阳离子的形式，也有与表面活性剂结合的阳离子的形式。发现非离子表面活性剂和镍在Purolite c106阳离子交换剂中的吸附适合同时去除这两种污染物，从而使镀镍冲洗水中回收的水回用，防止对环境的污染。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transactions of The Institute of Metal Finishing 工程技术-材料科学：膜

CiteScore

3.40

自引率

10.50%

发文量

审稿时长

3 months

期刊介绍： Transactions of the Institute of Metal Finishing provides international peer-reviewed coverage of all aspects of surface finishing and surface engineering, from fundamental research to in-service applications. The coverage is principally concerned with the application of surface engineering and coating technologies to enhance the properties of engineering components and assemblies. These techniques include electroplating and electroless plating and their pre- and post-treatments, thus embracing all cleaning pickling and chemical conversion processes, and also complementary processes such as anodising. Increasingly, other processes are becoming important particularly regarding surface profile, texture, opacity, contact integrity, etc.