Wastewater treatment using a hybrid process coupling adsorption on marl and microfiltration

IF 0.8 4区工程技术 Q4 ENGINEERING, CHEMICAL

Membrane Water Treatment Pub Date : 2020-07-01 DOI:10.12989/MWT.2020.11.4.275

B. Maimoun, A. Djafer, L. Djafer, R. Marin-Ayral, A. Ayral

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引用次数: 4

Abstract

Hranfa's marl, a local natural mineral, is selected for the decontamination by adsorption of aqueous effluents in textile industry. Its physicochemical characterization is first performed. It is composed mainly of Calcite, Quartz, Ankerite and Muscovite. Its specific surface area is 40 m2g-1. Its adsorption performance is then tested in batch conditions using an industrial organic dye, Bemacid Red E-TL, as a model pollutant. The measured adsorption capacity of Hranfa's marl is 16 mg g-1 which is comparable to that of other types of natural adsorbents. A hybrid process is tested coupling adsorption of the dye on marl in suspension and microfiltration. An adsorption reactor is inserted into the circulation loop of a microfiltration pilot using ceramic membranes. This makes possible a continuous extraction of the treated water provided that a periodic replacement of the saturated adsorbent is done. The breakthrough curve obtained by analyzing the dye concentration in the permeate is close to the ideal one considering that no dye will cross the membrane as long as the adsorbent load is not saturated. These first experimental data provide proof of concept for such a hybrid process.

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泥泥-微滤耦合吸附复合工艺处理废水

Hranfa的泥灰岩是当地的一种天然矿物，被选为纺织工业中通过吸附废水来净化污染。首先对其进行了物理化学表征。主要由方解石、石英、铁白云石和白云母组成。其比表面积为40m2g-1。然后，使用工业有机染料Bemacid Red E-TL作为模型污染物，在分批条件下测试其吸附性能。Hranfa泥灰岩的测量吸附容量为16 mg g-1，与其他类型的天然吸附剂相当。采用混合工艺对悬浮液中染料在泥灰岩上的吸附和微滤进行了耦合试验。将吸附反应器插入使用陶瓷膜的微滤中试的循环回路中。只要定期更换饱和吸附剂，就可以连续提取处理过的水。考虑到只要吸附剂负载不饱和，就不会有染料穿过膜，通过分析渗透物中的染料浓度获得的穿透曲线接近理想曲线。这些第一批实验数据为这种混合过程提供了概念证明。

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

Membrane Water Treatment ENGINEERING, CHEMICAL-WATER RESOURCES

CiteScore

1.90

自引率

30.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Membrane and Water Treatment(MWT), An International Journal, aims at opening an access to the valuable source of technical information and providing an excellent publication channel for the global community of researchers in Membrane and Water Treatment related area. Specific emphasis of the journal may include but not limited to; the engineering and scientific aspects of understanding the basic mechanisms and applying membranes for water and waste water treatment, such as transport phenomena, surface characteristics, fouling, scaling, desalination, membrane bioreactors, water reuse, and system optimization.