ABSTRACT

Management of environmental resources presents challenges across agricultural production. In the case of the semi-arid region of Arava Valley in Israel, irrigation with groundwater brackish water is a widespread practice that has severe limitations. In this research studies are taking place for brackish groundwater upgrading for unrestricted use for the irrigation and sustainable agricultural production. The treatment system applies two main treatment stages: nanofiltration and reverse osmosis membrane process and, the pilot system with a capacity of around 1 m³/hr. Different mixtures of nanofiltration and reverse osmosis, Brackish and potable permeates are then applied for the irrigation of pepper crops. The field results with the graphical visualization approach using total ranking, multi-dimensional scaling, and clustering technique show that the conventional brackish feed water produces good results of relaxation time, total soluble solids and Vitamin C content. Treatment system using hybrid nanofiltration and reverse osmosis technology improves product quality related to the relative fruit colour red shade.

摘要

环境资源管理对农业生产提出了挑战。在以色列阿拉瓦河谷的半干旱地区，用地下水微咸水灌溉是一种普遍的做法，但具有严重的局限性。在这项研究中，正在对微咸地下水进行升级，以便不受限制地用于灌溉和可持续农业生产。该处理系统采用两个主要处理阶段：纳滤和反渗透膜工艺，以及容量约为 1 m ^{3的中试系统}/小时。然后将纳滤和反渗透、微咸水和饮用渗透液的不同混合物用于辣椒作物的灌溉。使用总排序、多维缩放和聚类技术的图形可视化方法的现场结果表明，传统的微咸水在弛豫时间、总可溶性固体和维生素 C 含量方面产生了良好的结果。使用混合纳滤和反渗透技术的处理系统提高了与相对水果颜色红色色调相关的产品质量。