Solute Displacement and Pore Blockage Phenomena in Hybrid Sorption-Membrane Processes

混合吸附膜过程中的溶质置换和孔堵塞现象

• 批准号: 0123281
• 负责人: Benito Marinas
• 金额: --
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0123281&HistoricalAwards=false
• 关键词: Solute; Displacement; Pore; Blockage; Phenomena

0123281 Marinas The objective of the proposed research is to develop a fundamental understanding of the pore blockage and solute displacement mechanisms of competitive adsorption of trace organic compounds on powdered activated carbon (PAC). This information will be used to develop equations for these effects that will be incorporated into mathematical models of hybrid sorption-membrane processes. Adsorption studies will be conducted using model compounds or probes, as well as with natural organic matter (NOM). The competitive effects in porous adsorbents will be modeled for the PAC/membrane system using the probe data first. After the model has been verified using probes, the general form of the model will be tested for applicability to NOM/trace compound competitive adsorption. The results of this research could be used to develop recommendations for the optimum design and operation of full-scale hybrid sorption-membrane processes for the removal of trace organic compounds from water. ***

0123281 Marinas 拟议研究的目的是对粉状活性炭 (PAC) 上微量有机化合物竞争吸附的孔隙堵塞和溶质置换机制有一个基本的了解。 这些信息将用于开发这些效应的方程，并将其纳入混合吸附膜过程的数学模型中。 吸附研究将使用模型化合物或探针以及天然有机物（NOM）进行。 首先使用探针数据对 PAC/膜系统中多孔吸附剂的竞争效应进行建模。 使用探针验证模型后，将测试模型的一般形式是否适用于 NOM/痕量化合物竞争吸附。 这项研究的结果可用于为从水中去除痕量有机化合物的全规模混合吸附膜工艺的优化设计和操作提供建议。 ***