利用盐度梯度能量:通过现场逆电透析技术推进水回收
Tamara Sampedro1, Elisa Mazo2, Lucía Gómez-Coma1
1Universidad de Cantabria, Department of Chemical and Biomolecular Engineering, Av. Los Castros 46, 39005, Santander, Spain.
Journal of environmental management
|November 12, 2024
概括
城市废水可以通过反向电透析 (RED) 技术利用盐度梯度能量 (SGE) 产生可再生能源. 这项试点研究表明,RED可以为废水处理提供动力,为水的再利用创造一个可持续的能源循环.
科学领域:
- 环境工程 环境工程
- 可再生能源技术可再生能源技术
- 水处理 处理水的方法
背景情况:
- 城市废水处理厂 (UWWTP) 的废水通过盐度梯度能量 (SGE) 提供可再生能源.
- 反向电透析 (RED) 技术可以利用SGE为三级废水处理过程提供动力.
- 将能源生产与水资源回收相结合,可以带来经济和环境的好处.
研究的目的:
- 通过使用RED技术来展示可再生能源生产和水资源回收的创新过程.
- 在沿海UWWTP进行试点规模的RED系统,以抵消水再生和再利用的能源成本.
- 评估RED在实际环境条件下的性能和效率,以为三级废水处理提供动力.
主要方法:
- 一个试点规模的RED系统,面积为20.125平方米,安装在沿海UWWTP.
- 最初的测试是使用合成溶液进行的,随后是使用天然海水和经过处理的废水进行操作.
- 在环境温度下评估系统性能,测量功率密度,能源效率和水导率.
主要成果:
- 试点规模的RED系统通过合成解决方案实现了1.39W/m2的峰值功率密度.
- 在实际环境条件下,达到0.95W/m2的峰值功率密度,证明了稳定性和效率.
- 该系统产生了高达38.2Wh/m3LC,能源效率为1.9W/m2·m3LC,同时保持了可重复使用的水质.
结论:
- 该研究成功地展示了RED技术在沿海UWWTP的水回收阶段的整合.
- RED系统有效地利用SGE为三级处理提供动力,创建了一个自给自足的能源循环.
- 这种方法提高了水资源管理效率,支持可持续的水资源再利用,并为循环水资源经济做出了贡献.
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