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对于几乎完全的资源回收和尿液零排放的先进电化学膜技术:性能优化和评估

Hao-Ran Yang¹, Yuan Liu¹, Shu-Jie Hu¹

¹Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Science, Chongqing 400714, China.

|August 1, 2024

概括

这项研究引入了尿液处理的综合系统,实现了几乎完全的资源回收和零排放. 这种创新方法有效地回收,和,为废水管理提供可持续和经济有效的解决方案.

科学领域:

环境科学环境科学
化学工程是化学工程的重要组成部分.
材料科学材料科学材料科学

背景情况:

肥料营养素日益稀缺,需要先进的废水处理来恢复资源.
尿液是一种富含营养的废水,是恢复诸如,和等有价值元素的可行来源.
传统的方法从尿液中恢复营养素往往是低效和昂贵的.

研究的目的:

开发和评估一个集成的双极膜电透析 (BMED) 和空腔纤维膜 (HFM) 系统,用于从尿液中全面回收资源.
优化系统参数,包括电压和流量,以提高能源效率和性能.
评估拟议的尿液处理系统的经济可行性和环境效益.

主要方法:

一个集成的BMED和HFM系统被设计和实施用于尿处理.
进行了计算模拟和实验验证,以优化操作条件 (例如电压,流量).
量化了,和的营养恢复效率,以及能源消耗和产品产量.

主要成果:

该系统在40分钟内实现了几乎完全的资源回收 (89%N,96%P,95%K) 和尿液的零排放.
最佳条件 (20V,0.4L/分钟) 导致了高能耗和高效的盐分离 (90.13%).
技术经济分析表明,与沉方法相比,治疗成本较低 (6.29美元/公斤),具有显著的净利潜力 (18.24美元/米3).

结论:

综合的BMED-HFM系统提供了一种有效和可持续的方法,用于几乎完全的资源回收和尿液的零排放处理.
该系统具有显著的经济可行性,为营养物质回收和废水管理提供了切实可行的解决方案.
这项技术为废水处理中的可持续营养管理和循环经济原则铺平了道路.

关键词:

双极膜电透析是双极膜的电透析.空洞的纤维纤维膜膜.几乎完全的资源回收.有选择性的分离.没有尿液排泄.

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