In connection with the widespread use of pesticides, the question arose of their possible danger to humans and the environment. The danger of using pesticides can be associated with the presence of residues in food products, with the pollution of water bodies, soil and other objects. Therefore, water treatment from pesticides is a major environmental task. In this study, the hydrophobic poly(ethylene terephthalate) (PET) track-etched membranes (TeMs) obtained by graft polymerization of triethoxyvinylsilane (TEVS) and covalent attachment of 1H, 1H, 2H, 2H-perfluorododecyltrichlorosilane (PFDTS) were tested in the water treatment from a pesticide (carbendazim) using direct contact membrane distillation. Hydrophobic PET TeMs were characterized by scanning electron spectroscopy, Fourier-transform infrared spectroscopy, liquid entry pressure analysis. The hydrophobization of PET TeMs led to a rapid increase in the contact wetting angle and reached to 134°. The efficiency of water purification from carbendazim was evaluated by water-flux measurements and ultraviolet–visible (UV–Vis) spectroscopy. The carbendazim solution was used at a concentration of 5, 10 and 20 mg/l. The largest permeate flux of hydrophobized membranes was 214 g/m² h. Concentration of carbendazim in permeate solution was less than 100 µg/l.

中文翻译：

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使用疏水性轨迹蚀刻膜对农药溶液进行膜蒸馏

关于农药的广泛使用，人们提出了农药对人类和环境可能造成的危险的问题。使用农药的危险可能与食品中残留的残留物，水体，土壤和其他物体的污染有关。因此，用农药处理水是一项主要的环境任务。在这项研究中，通过三乙氧基乙烯基硅烷（TEVS）的接枝聚合反应和1H，1H，2H，2H-全氟十二烷基三氯硅烷（PFDTS）的共价键合获得的疏水性聚对苯二甲酸乙二醇酯（PET）轨迹蚀刻膜（TeMs）进行了测试。使用直接接触膜蒸馏从农药（多菌灵）中进行水处理。通过扫描电子光谱，傅立叶变换红外光谱，液体进入压力分析来表征疏水性PET TeM。PET TeM的疏水化导致接触润湿角迅速增加，达到134°。通过水通量测量和紫外-可见（UV-Vis）光谱评估了从多菌灵中纯化水的效率。多菌灵溶液的使用浓度为5、10和20 mg / l。疏水膜的最大渗透通量为214 g / m² 小时 渗透液中多菌灵的浓度小于100 µg / l。