Currently, water shortage has been emerged as a severe problem in human life. In this work, a zero liquid discharge technology was proposed combining macroporous resin adsorption and desorption, bipolar membrane electrodialysis (BMED) and electrodialysis (ED). During the process of resin adsorption and desorption, the adsorption capacity of the resin and the concentration of the desorption solution were investigated. In addition, the power supply, volume ratio, membrane type in BMED/ED processes were investigated. According to the results of the study, the eluting agent solution of 4% NaOH was the optimal content, with a desorption rate of 97.49%. In the BMED process, the acid/base concentration reached 1.25 mol/L and 0.85 mol/L, respectively. During ED process, the final concentration of NaOH was 0.14 mol/L, and the COD rejection rate reached 93.3%. In the whole work, the NaOH and the macroporous resin were recycled, which achieved the closed-loop zero liquid discharge of salt recycling and reuse in wastewater. Furthermore, techno-economic analysis (0.79 $/kg, 0.21 $/kg) and water recovery rate calculations (96%, 83%) were carried out for the BMED and ED processes, which demonstrated that the process was promising for industrial application.

目前，水资源短缺已成为人类生活中的一个严重问题。在这项工作中，提出了一种结合大孔树脂吸附和解吸、双极膜电渗析（BMED）和电渗析（ED）的零液体排放技术。在树脂吸附和解吸过程中，考察了树脂的吸附能力和解吸溶液的浓度。此外，还研究了BMED/ED工艺中的电源、体积比、膜类型。根据研究结果，4% NaOH的洗脱剂溶液为最佳含量，解吸率为97.49%。在BMED工艺中，酸/碱浓度分别达到1.25 mol/L和0.85 mol/L。ED过程中NaOH终浓度为0.14 mol/L，COD去除率达到93。3%。整个工作对NaOH和大孔树脂进行回收利用，实现了盐回收和废水回用的闭环零排放。此外，对 BMED 和 ED 工艺进行了技术经济分析（0.79 $/kg、0.21 $/kg）和水回收率计算（96%、83%），表明该工艺具有工业应用前景。