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

0123281 Marinas拟议研究的目的是对粉末活性碳(PAC)竞争吸附痕量有机物的孔道堵塞和溶质置换机理有一个基本的了解。这些信息将被用来建立这些影响的方程，这些方程将被并入混合吸附-膜过程的数学模型。将使用模型化合物或探针以及天然有机物(NOM)进行吸附研究。首先利用探针数据对PAC/膜体系中的竞争效应进行模拟。在用探针验证了模型后，将测试模型的一般形式是否适用于NOM/TRACE化合物竞争吸附。这项研究的结果可以用来为全规模混合吸附-膜工艺去除水中微量有机化合物的优化设计和操作提供建议。***

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. ***