Abstract The aim of this study is to investigate the performances of new N-methyl-D-glucamine functionalized resins revealing gel (1JW), expanded gel (2JW) and epidermal-like structure (2PTN) for simultaneous removal of boron and arsenic from saline geothermal water by means of adsorption-membrane filtration hybrid process. The effects of adsorbent concentration and resin replacement rate were particularly studied for boron removal from geothermal water. Boron removal with 1JW resin increased from 66% to 86% by doubling the resin concentration while the respective values found for 2PTN resin were 61% and 73%. In the case of the microporous 2PTN resin, due to its epidermal-like structure, the efficiency of the hybrid process was improved by increasing the replacement rate of fresh and saturated resins. Unlike the 2JW resin as the most efficient resin for boron removal among novel resins, the maximum arsenic removal of 35.8% was obtained by the 1JW resin using a resin concentration of 4 g/L. The Dowex XUS 43594.00 resin exhibited lower arsenic removal of 21.5% than 2PTN (4 g/L) and 2JW (2 g/L) giving arsenic removals of 22.4% and 28.8%, respectively.

中文翻译：

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新型螯合离子交换树脂吸附-膜过滤混合工艺去除含盐地热水中硼砷的性能

摘要 本研究的目的是研究新型 N-甲基-D-葡糖胺功能化树脂显露凝胶 (1JW)、膨胀凝胶 (2JW) 和表皮样结构 (2PTN) 同时去除盐水中的硼和砷的性能。地热水采用吸附-膜过滤混合工艺。特别研究了吸附剂浓度和树脂置换率对地热水中硼去除的影响。通过将树脂浓度加倍，1JW 树脂的硼去除率从 66% 增加到 86%，而 2PTN 树脂的相应值分别为 61% 和 73%。在微孔 2PTN 树脂的情况下，由于其类似表皮的结构，混合过程的效率通过增加新鲜和饱和树脂的更换率而得到提高。与作为新型树脂中最有效的除硼树脂的 2JW 树脂不同，使用 4 g/L 的树脂浓度的 1JW 树脂获得了 35.8% 的最大砷去除率。与 2PTN (4 g/L) 和 2JW (2 g/L) 相比，Dowex XUS 43594.00 树脂的砷去除率低，为 21.5%，砷去除率分别为 22.4% 和 28.8%。