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首页> 外文期刊>Desalination and water treatment >The performance of a fixed-bed treatment system packed with layered textiles for their filtration/adsorption potential for salt and organic pollutant
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The performance of a fixed-bed treatment system packed with layered textiles for their filtration/adsorption potential for salt and organic pollutant

机译：固定床处理系统的性能，该系统装有分层的纺织品，可以过滤和吸附盐和有机污染物

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摘要

The main contribution of the research work presented here was to select and investigate a few commercially available textiles to study their filtration/adsorption potential for salt and total organic carbon (TOO reduction during wastewater treatment. First, several physical-mechanical properties, such as tensile strength, thickness, weight, density and structural aspect of two woven (polyamide and polyester) and two nonwoven (polypropylene [PP] and PP/polyethyl-ene [PE]) textiles, were determined. Also, the void amount and total void area percentage of textiles were measured, which influence the wastewater flow (clog) and filtration efficiency. With the intention of examining the adsorption ability of the selected textiles, kinetic experiments were carried out in shake-flasks using three commonly-used salts. Afterwards, small-scale column experiments were conducted in a continuous-flow operation to assess the TOC and salt reduction. It was found that both nonwoven textiles (either made from PP or from bicomponent PP/PE) with the more complex structures and a higher total void area were more suitable for the removal of salt and TOC in comparison to the efficiency of a column packed with sand/ woven fabrics, regarding the type and concentration of salt as well as the contact time.
机译：此处提出的研究工作的主要贡献是选择和研究了几种可商购的纺织品，以研究其对盐和总有机碳的过滤/吸附潜力（废水处理过程中TOO的降低。首先，一些物理机械特性，例如拉伸强度）。测定了两种机织（聚酰胺和聚酯）和两种非织造（聚丙烯[PP]和PP /聚乙烯/聚乙烯[PE]）纺织品的强度，厚度，重量，密度和结构方面，并且，其空隙量和总空隙面积测量纺织品的百分含量，这会影响废水的流量（堵塞）和过滤效率，为了检验所选纺织品的吸附能力，使用三种常用的盐在摇瓶中进行了动力学实验。在连续流操作中进行了大规模柱实验，以评估TOC和减盐效果。结果发现，两种非织造织物（ （从PP或双组分PP / PE中分离）（相比于填充有沙子/机织织物的色谱柱的类型和浓度），具有更复杂的结构和更高的总空隙面积更适合去除盐和TOC盐以及接触时间。

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