A Homogeneous Model For Reverse Osmosis Separation Of Multicomponent Electrolyte Solutions

多组分电解质溶液反渗透分离的均相模型

• 批准号: 9313873
• 负责人: Douglas Lloyd
• 金额: $ 22.11万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-15 至 1997-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9313873&HistoricalAwards=false
• 关键词: Homogeneous; Model; Reverse; Osmosis; Separation

CTS-9313873 University of Texas-Austin Douglas R. Lloyd ABSTRACT Development of a homogeneous theoretical model to predict species rejection coefficients for multicomponent electrolyte solutions during reverse osmosis comprises the main thrust of this research. The new theory incorporates the calculation of fixed charged density in the membrane during reverse osmosis and its dependence on ion coefficients will be calculated as a function of electrolyte concentrations, pH, and applied pressure and then compared to experimental measurements. The general theory will be extended to accommodate concentration polarization and membranes of different structures. Results could enhance the use of reverse osmosis to develop water resources in parts of the country, contributing to civil infrastructure, and facilitate hybrid methods for environmental treatment of contamination sites.

德克萨斯大学奥斯汀分校道格拉斯R.劳埃德 摘要 开发一个均相理论模型来预测在反渗透过程中的多组分电解质溶液的物种排斥系数包括本研究的主要推力。 新的理论结合了反渗透过程中膜中的固定电荷密度的计算，其对离子系数的依赖性将被计算为电解质浓度，pH值和施加的压力的函数，然后与实验测量值进行比较。 一般理论将被扩展到适应浓度极化和不同结构的膜。 研究结果可以促进反渗透的使用，以开发该国部分地区的水资源，促进民用基础设施，并促进污染场地环境处理的混合方法。