GOALI: Separation of Oil and Other Organics from Water Using Inverse Fluidization of Hydrophobic Aerogels

提案编号：0730465首席研究员：Jerry LinINSTITUTION：亚利桑那州立大学提案标题：目标ali：使用疏水气凝胶的反流化从水中分离油和其他有机物在这个项目中，pi将研究一个连续操作的低密度反流化床，疏水气凝胶去除不混溶（如油），部分混溶（如氯化烃），或完全混溶（如乙醇）有机物。pi计划证明这种新的吸附工艺在去除这些污染物方面优于活性炭填充床或其他传统吸附剂。与Cabot公司合作，pi还计划扩大工艺规模并探索商业化可能性。为了实现这些目标，PI将进行实验，研究不同成分、性质和尺寸范围的纳米凝胶对水中各种有机污染物的吸附平衡和动力学。这些结果将用于设计和开展反流化实验，该实验将集中于测量流体动力学，液体和颗粒混合以及纳米凝胶的吸附/吸收效率和容量。同时，pi将开发物理可靠的模型来描述各种操作参数的影响，并预测压降、床层孔隙度、液相混合、纳米凝胶进料速率和饱和度值（容量）。实验和建模结果将用于在Cabot的Billerica研发中心设计和建造一个用于处理废水、雨水径流和发酵肉汤的原型商业系统。将进行平衡和动力学实验，以了解疏水纳米凝胶的吸附机制，并获得模拟从不混溶悬浮液和水溶液中连续分离有机物的反流化床过程所需的基本平衡和动力学数据。更广泛的影响：从事这项研究的本科生和研究生将接受粒子技术、纳米技术、分离过程和环境科学方面的广泛教育和培训。他们还将有额外的优势，通过由Cabot co - pi共同监督，快速获得工业视角，并将有机会在Cabot位于马萨诸塞州Billerica的研发中心度过一到两个夏天，与Cabot工程师一起构建原型系统。这四位共同的私人导师将在适当的亚利桑那州立大学本科或研究生课程中担任客座讲师，在那里他们将在课堂上向亚利桑那州立大学的学生展示研究的不同方面。大学合作项目负责人将努力吸引亚利桑那州立大学少数族裔本科生和女性人才库作为研究学生加入该项目。行业合作伙伴将负责ASU和Cabot之间的新知识转移，以及探索市场和商业化机会。当今最具挑战性的环境问题之一是从工业废水和雨水中去除油和其他有机污染物；拟议的研究计划有可能发展成为处理这一问题的主要支持技术。该项目还将提高工业界对在独特应用中使用纳米结构颗粒的机会的认识，并将有助于美国制造业的竞争力和环境保护。

PROPOSAL NUMBER: 0730465PRINCIPAL INVESTIGATOR: Jerry LinINSTITUTION: Arizona State UniversityPROPOSAL TITLE: GOALI: Separation of Oil and Other Organics from Water Using Inverse Fluidization of Hydrophobic AerogelsIn this project the PIs will study a continuously operating inverse fluidized bed of low density,hydrophobic aerogels to remove immiscible (such as oil), partially miscible (such as chlorinatedhydrocarbons), or totally miscible (such as ethanol) organics. The PIs plan to prove that this new sorption process can outperform a packed bed of activated carbon or other conventional sorbents for removing these contaminants. Working in partnership with Cabot Corporation, the PIs also plan to scale up the process and explore commercialization possibilities. To achieve these objectives, the PI will conduct experiments to study the equilibrium and kinetics of sorption of a variety of organic contaminants in water by nanogels of different composition, properties, and size ranges. These results will be used in designing and conducting inverse fluidization experiments, which will concentrate on measuring the hydrodynamics, liquid and particle mixing, and the adsorption/absorption efficiency and capacity of the nanogels. At the same time the PIs will develop physically reliable models to describe the effects of various operating parameters, and to predict the pressure drop, bed porosity, liquid phase mixing, nanogel feed rate and saturation values (capacity). The experimental and modeling results will be used for designing and building a prototype commercial system for treating wastewater, storm water runoff and fermentation broths at Cabot's Billerica R&D Center. Equilibrium and kinetic experiments will be performed to gain an understanding of the sorption mechanisms in hydrophobic nanogels and obtain basic equilibrium and kinetic data needed for modeling the inverse fluidized bed process for continuous separation of organics from immiscible suspensions and aqueous solutions. Broader Impacts: Undergraduate and graduate students working on the research will receive broad education and training in particle technology, nanotechnology, separation processes, and environmental science. They will also have the additional advantage of quickly gaining an industrial perspective by being jointly supervised by the Cabot Co-PIs, and will have the opportunity to spend one or two summers at the Cabot R&D facility in Billerica, MA, working with Cabot engineers to build a prototype system. Each of the four Co-PIs will serve as guest lecturers in appropriate ASU undergraduate or graduate courses, where they will present different aspects of the research to ASU students in the classroom. The University Co-PIs will strive to target the large ASU undergraduate minority and woman talent pool to join the project as research students. The Industry Co-PIs will be responsible for the transfer of new knowledge between ASU and Cabot, as well as exploring marketing and commercialization opportunities.One of the most challenging environmental problems today is the removal of oil and other organic contaminants from industrial wastewater and storm water; the proposed research program has the potential to evolve into a major enabling technology for dealing with this problem. The project will also increase industry's awareness of the opportunities that exist for using nanostructured particles in unique applications and will contribute to US manufacturing competitiveness and the preservation of the environment.