This study evaluates the performance of two nanofiltration membranes in removing a herbicide: dichloroaniline. Theudmembranes, one polyamide and one cellulose acetate, have a cut-off in the range 150–300 g/mol (manufacturers’ data).udThe experiments were carried out with solutions of dichloroaniline in demineralized water, with concentrations from 1 to 10 ppb. For each membrane, the amount of herbicide retained and adsorbed by the membrane was determined as a function of feed concentration and transmembrane pressure. The two membranes, made of different materials but having the same nominal cut-off, retained dichloroaniline to very different extents and by different mechanisms.
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机译:这项研究评估了两种纳滤膜在去除除草剂:二氯苯胺上的性能。 ud膜,一种聚酰胺和一种醋酸纤维素的截留值范围为150-300 g / mol(制造商的数据)。 ud使用二氯苯胺在软化水中的浓度为1至1的溶液进行实验。 10 ppb。对于每种膜,确定除草剂在膜上保留和吸附的量与进料浓度和跨膜压力的关系。这两种膜由不同的材料制成,但具有相同的标称截止值,它们通过不同的机理将二氯苯胺保留的程度非常不同。
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