Responsive Membranes and Advanced Materials for Sensing and Remediation of Halo-organics

用于卤代有机物传感和修复的响应膜和先进材料

• 批准号: 10596288
• 负责人: Dibakar Bhattacharyya
• 金额: $ 18.52万
• 依托单位: UNIVERSITY OF KENTUCKY
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-04-07 至 2025-01-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10596288
• 关键词: Adsorption; Advanced Development; Aftercare; Area; Attention; Biomedical Research; Carbon; Carbon Tetrachloride; Catalysis; Catalytic Domain; Chemicals; Chloroform; Collaborations; Detection; Development; Drug Metabolic Detoxication; Energy consumption; Engineering; Environment; Environmental Health; Fiber; Funding; Gel; Goals; Hazardous Waste Sites; Health; Heating; Human; Hydrogels; Individual; Industrialization; International; Iron; Kentucky; Magnetism; Membrane; Metals; Methods; Nanostructures; Natural regeneration; Nutritional Science; Oxidants; Oxides; Poly-fluoroalkyl substances; Polychlorinated Biphenyls; Polymers; Property; Public Health; Research; Risk; Risk Reduction; Science; Site; Soil; Solvents; Source; Sulfate; Superfund; Surface; System; Techniques; Technology; Temperature; Tetrachloroethylene; Toxic effect; Toxicant exposure; Trichloroethylene; Water; contaminated water; cost; cost effective; design; drinking water; food science; global environment; graphene; ground water; halogenation; magnetic field; magnetite ferrosoferric oxide; materials science; metallicity; microbial; nanocomposite; nanoparticle; nanoscale; nanosized; novel; nutrition; particle; pollutant; prevent; reaction rate; remediation; sensor; superfund chemical; superfund site; water sampling

PROJECT SUMMARY Chlorinated organic compounds such as polychlorinated biphenyls (PCBs) and trichloroethylene (TCE, PCE), and polyfluoroalkyl substances (PFAS) continue to pose both remediation challenges and human health risks. Despite decades of remediation effort, chloro- and perfluoro-organic compounds remain Superfund pollutants of national health concern due to their high toxicity, persistence and varied sources of distribution in the environment. Many current treatments (microbial transformation, carbon adsorption, etc.) for the reclamation of contaminated water sources are chemical-intensive, energy-intensive, and/or require post-treatment due to unwanted by-product formation. Project 3 proposes trans-disciplinary integration of the materials surface science and engineering concepts including responsive polymer and reduced graphene oxide 2D membrane science, nanostructured metals, and nutrition and food science using approaches common in the biomedical research field to develop more efficient methods of organic detoxification. The development of nanosized iron- based materials has brought important and promising techniques into the field of environmental remediation. In recent years, zero-valent nanoscale metal (especially bimetallic) particles have attracted growing attention in groundwater remediation of chlorinated solvents. Our overarching goals are to create catalytic domains in robust polymer hollow fibers and in 2D graphene-based membranes for both reductive and oxidative degradation and temperature-responsive polymers for PFAS and PCB sorption/ desorption. Two specific aims are to: 1) to create robust polymeric/gel and 2-D material-based (reduced graphene oxide and composites) metal catalyzed functionalized membranes and materials to enhance TCE, PCE, PCB degradation efficiency and reduce material usage, and demonstration of the use of catalytic membrane filters for two site-based applications, (2) to concentrate and regenerate PFAS and PCB individual compounds using ultra high sorption capacity temperature responsive hydrogel/membranes or localized heating through AMF (alternating magnetic field) using magnetite nanoparticles, and to create functionalized smart adsorptive filters and sensors for PFAS detoxification applications with real-world water samples. Each of these objectives represent highly significant material science advancement in terms of confined reactive nanosized metals in robust membrane domain, and novel temperature swing adsorption/desorption through creation of responsive materials. The applications of our technologies will include collaborations with Rockwell International Site in Russellville, Kentucky for PCBs and the ATKEMIX TEN Site in Louisville, Kentucky for TCE, PCE, chloroform, and carbon tetrachloride mixture, identified water utilities in Eastern Kentucky for PFAS sorption application, and Arcadis Corporation involved with remediation activities.

项目摘要 氯化有机化合物，如多氯联苯（PCB）和三氯乙烯（TCE，PCE）， 和多氟烷基物质（PFAS）继续构成补救挑战和人类健康风险。 尽管经过几十年的治理努力，氯和全氟有机化合物仍然是超级基金的污染物 由于其高毒性、持久性和在非洲的不同分布来源， 环境当前的许多处理方法（微生物转化、碳吸附等）为了开垦 受污染的水源是化学密集型的、能源密集型的和/或需要后处理， 不需要的副产物形成。项目3提出了材料表面的跨学科整合 科学和工程概念，包括响应性聚合物和还原氧化石墨烯2D膜 科学，纳米结构金属，营养和食品科学，使用生物医学中常见的方法， 研究领域开发更有效的有机解毒方法。纳米铁的研究进展 基材料为环境修复领域带来了重要的和有前途的技术。在 近年来，零价纳米金属（尤其是纳米金属）颗粒在纳米材料领域引起了越来越多的关注。 氯化溶剂的地下水补救。我们的首要目标是创造催化领域， 坚固的聚合物中空纤维和2D石墨烯基膜，用于还原和氧化 用于PFAS和PCB吸附/解吸的降解和温度响应聚合物。两个具体目标 1）创建基于聚合物/凝胶和2-D材料的坚固耐用的材料（还原氧化石墨烯和复合材料） 提高TCE、PCE、PCB降解效率的金属催化官能化膜和材料 和减少材料的使用，并示范使用催化膜过滤器的两个网站为基础的 应用，（2）使用超高吸附剂浓缩和再生PFAS和PCB单个化合物 容量温度响应性水凝胶/膜或通过AMF（交变磁场）局部加热 领域），并为PFAS创建功能化智能吸附过滤器和传感器 实际水样的解毒应用。这些目标中的每一个都具有非常重要的意义。 材料科学在坚固膜领域中的受限反应性纳米尺寸金属方面的进步， 以及通过产生响应性材料的新型变温吸附/解吸。应用 我们的技术将包括与位于肯塔基州拉塞尔维尔的罗克韦尔国际工厂合作， 多氯联苯和位于肯塔基州路易斯维尔的ATKEMIX TEN工厂，用于TCE、PCE、氯仿和四氯化碳 混合物，确定了肯塔基州东部用于PFAS吸附应用的供水设施，以及Arcadis公司 参与补救活动。