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.

项目总结