Search Results - Sustainability+%26+Cleantechnologies

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Process for Recycling PVC to HDPE
Background Approximately 40 million tons of polyvinyl chloride (PVC) are produced annually, making PVC one of the most widely produced synthetic plastic polymers. Waste materials that contain PVC are extremely difficult to recycle mechanically. Thermochemical methods such as pyrolysis are also undesirable because of hydrochloric acid and chlorinated...
Published: 1/3/2022   |   Inventor(s): Konstantinos Goulas, Scott Svadlenak
Keywords(s):  
Category(s): Chemical, Chemistry, Materials Science, Sustainability & Cleantechnologies
Method of Producing Oleofurans
Technology Description This technology is a method for making oleofurans which can be derived from biomass and used as precursors for high performance oleofuran-based surfactants. This method minimizes or eliminates the use of toxic and/or expensive reagents, such as trifluoroacetic acid, and produces a small number of bi-products. This process produces...
Published: 3/26/2020   |   Inventor(s): Nicholas Gadinas, Konstantinos Goulas, Kyle Reem
Keywords(s): biorenewable surfacant, detergents, green chemistry, high performance detergents, oleofuran, sulfonate detergents
Category(s): Chemical, Engineering, Materials Science, Sustainability & Cleantechnologies
Thermal Fan
Technology Description This thermal fan device operates, in principle, similarly to a heat pipe by utilizing the latent heats of vaporization and condensation with the corresponding phase changes to move a fluid like air. A phase change working fluid is contained within a confined volume that is exposed to the low-grade heat. The working fluid is selected...
Published: 3/4/2020   |   Inventor(s): Bahman Abbasi, Deepak Sharma
Keywords(s): air circulation, low-grade heat, thermal fan
Category(s): Engineering, Physical Science, Sustainability & Cleantechnologies, Device
Radio Frequency Energy Harvesting with Power Conversion Efficiency Tracking
Technology Description This technology is a novel multi-stage programmable rectifier that can be calibrated to efficiently receive and rectify an RF input to generate a DC voltage output. Each rectifier stage can include a transistor with a programmable threshold voltage and a switch connected to the transistor. Each rectifier stage can also include...
Published: 3/3/2020   |   Inventor(s): Lingli Xia, Patrick Chiang, Jiao Cheng
Keywords(s): Energy harvesting, low power sensors, RF rectifier
Category(s): Engineering, Device, Materials Science, Medical Devices, Nanoscience & Microtechnologies, Physical Science, Sustainability & Cleantechnologies
Variable Rate Drip Irrigation (VRDI) Emitter
Technology Description The Variable Rate Drip Irrigation (VRDI) Emitter is a technology that allows for more precise irrigation by monitoring the flow at the emitter, and controlling that based on the desired volume of water to be emitted. In this way, the operator of the system specifies an amount of water to be applied, and is ensured that the correct...
Published: 11/26/2019   |   Inventor(s): Hadi AL-agele, Chad Higgins, Tom DeBell, Chet Udell
Keywords(s): drip irrigation, smart irrigation, water conservation
Category(s): Agricultural, Engineering, Sustainability & Cleantechnologies
In Situ Bioremediation of Multiple Contaminants with Slow Release Co-metabolism Substrates
Background of Invention A variety of highly toxic contaminants of concern persist in soils and groundwater at industrial sites across the country. Treatment, if even feasible, is often very expensive and time consuming. In-situ bioremediation of multiple contaminants with slow release cometabolism allows is attractive, but faces challenges of substrate...
Published: 11/26/2019   |   Inventor(s): Mitchell Rasmussen, Lewis Semprini, Michael Hyman
Keywords(s): Bacteria, Bioremediation
Category(s): Biological Materials, Chemical, Engineering, Materials Science, Sustainability & Cleantechnologies
Thermally Actuated Freshwater Recovery System for Fracking Wastewater
Technology Description This technology, a product of Oregon State University research, details a device for the efficient treatment of wastewater produced from hydraulic fracturing (fracking). Relying upon the properties of water azeotropes and humid gas thermodynamics, this system is capable of treating water with a wide range and high concentration...
Published: 11/26/2019   |   Inventor(s): Bahman Abbasi, Hannah O'Hern, Elnaz Nikooei, Xiang Zhang
Keywords(s): wastewater treatment
Category(s): Chemical, Device, Engineering, Physical Science, Sustainability & Cleantechnologies
High Flux Resistance Heating Rod
Technology Description This technology provides for improved simulation of nuclear reactor fuel rod pulsation for research and testing purposes. The device is a resistive heating filament capable of producing 2.5 MW/m2 of energy in a matter of tens of milliseconds with an outer diameter of less than a centimeter (0.9525 cm). This responsive heating...
Published: 11/22/2019   |   Inventor(s): Daniel LaBrier, Wade Marcum, Jim Nylander, Aaron Weiss, Salem Sharaf
Keywords(s): boiling, critical heat flux, nuclear
Category(s): Diagnostics, Device, Engineering, Physical Science, Research Tools, Sustainability & Cleantechnologies
Apparatus for Water Desalination
Technology Description This technology is a device that can utilize low-grade heat for efficient desalination with minimal fouling. It achieves zero liquid discharge through its utilization of high velocity gases and gas-solid separators to atomize highly saline water. The technology is modular, portable, and is running-cost competitive with large...
Published: 11/22/2019   |   Inventor(s): Bahman Abbasi, Mohammed Abbas Elhashimi Khalifa, Xiang Zhang, Deepak Sharma
Keywords(s): Fluidized bed, Thermocompressor, Water desalination
Category(s): Engineering, Chemical, Device, Physical Science, Sustainability & Cleantechnologies
Solution Deposition of Transparent Conductive Oxide Thin Films
Technology Description This technology is an aqueous solution deposition process for making high quality thin films of tin oxide, tin antimony oxide, and doped compositions of both. Films made by these methods are extremely smooth, highly transparent, and can be made at variable thicknesses from several nanometers up to a micron. The electrical and...
Published: 7/22/2019   |   Inventor(s): Cory Perkins, Douglas Keszler
Keywords(s): solution deposition, thin film, Transparent Conductive Oxides
Category(s): Chemical, Device, Engineering, Materials Science, Nanoscience & Microtechnologies, Physical Science, Sustainability & Cleantechnologies
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