Search Results - shahnawaz+sinha

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Nano-Sized Boron-Doped Diamond-Enabled Electrodes for Water Treatment and Chemical Sensing
Background Electrochemical sensing is a compact process used to detect chemicals in aqueous solutions (e.g., water, bodily fluids, foods). It can also be used to treat pollutants in drinking and industrial wastewaters. Electrochemical oxidation can generate hydroxyl radicals, which are effective in degrading organic contaminants in water, including...
Published: 9/16/2024   |   Inventor(s): Paul Westerhoff, Sergi Garcia-Segura, Shahnawaz Sinha, Rishabh Bansal, Rafael Verduzco, Michael Wong
Keywords(s): Environmental
Category(s): Physical Science, Energy & Power, Advanced Materials/Nanotechnology, Semiconductors, Materials & Processes
Atmospheric Water Generation by a Hybridized Rotary Dessicant with Solar-Heated Evacuated Tubes
Background Water harvesting from ambient air to produce fresh water is an active area of research. Water moisture in the air is universally available, and the water extracted is essentially pure water. This makes this process ideal, particularly for communities with limited freshwater supplies. Atmospheric Water Generation (AWG) technology can produce...
Published: 5/10/2024   |   Inventor(s): Paul Westerhoff, Shahnawaz Sinha, Chao Zeng
Keywords(s):  
Category(s): Energy & Power, Physical Science, Advanced Materials/Nanotechnology, Applied Technologies, Environmental Remediation/Wastewater Treatment
Engineering Amorphous Titanium (Hydr)Oxides Incorporated into Point of Use Activated Carbon Block Filter for Simultaneous Removal of Metallic and Oxo-Anions Removal from Drinking Water
Background Arsenic is classified as a Class-A human carcinogen, and occurs widely in ground and surface waters across the globe. Long-term exposure to arsenic-contaminated water has been linked to skin, kidney, liver, and bladder cancers. In addition to arsenic, other metals (e.g., chromium, vanadium, tungsten, selenium, manganese, lead) commonly co-occur...
Published: 5/31/2024   |   Inventor(s): Paul Westerhoff, Alireza Farsad, Kiril Hristovski, Shahnawaz Sinha
Keywords(s): Environmental
Category(s): Advanced Materials/Nanotechnology, Environmental Remediation/Wastewater Treatment, Physical Science, Environmental
Portable Photoelectrocatalytic Device for Water Disinfection
­Bacteria, viruses, and other harmful microorganisms pose a significant pathogenic health-related risk to safe drinking water. Disinfection by chlorination is commonly practiced, however, chlorine is a toxic chemical that typically requires careful storage and proper handling. While ultraviolet (UV) disinfection can be effective, UV-based processes...
Published: 4/27/2023   |   Inventor(s): Paul Westerhoff, Francois Perreault, Sergio Garcia-Segura, Shahnawaz Sinha, Ana Barrios, Renato Montenegro Ayo
Keywords(s): Environmental, Water, Water Purification
Category(s): Physical Science, Environmental Remediation/Wastewater Treatment, Manufacturing/Construction/Mechanical, Environmental, Semiconductors, Materials & Processes
Evacuated Tube Solar Adsorption Heat Pump and Desalination System
Background Non-concentrated solar thermal energy systems have struggled to be extensively deployed, especially in hot climate areas where they are mainly used for space heating and domestic hot water. Since cooling demand increases with solar radiation, integration of both systems may be ideal. Unlike thermally driven absorption heat pump systems, adsorption...
Published: 2/23/2023   |   Inventor(s): Sami Alelyani, Patrick Phelan, Shahnawaz Sinha
Keywords(s):  
Category(s): Physical Science, Manufacturing/Construction/Mechanical, Environmental, Energy & Power
Method to Quantify Nanobubble Reactivity in Water
Background Nanobubbles are an emerging water treatment technology that can find application in bodies of water, groundwater, treatment plants, pipelines, medical facilities, industrial cooling towers, and many others. Their generation can be achieved through several methods including, ejector, venturi, cavitation, and mixing. With sizes ranging from...
Published: 2/23/2023   |   Inventor(s): Paul Westerhoff, Shahnawaz Sinha, Yuqiang Bi
Keywords(s):  
Category(s): Environmental, Environmental Remediation/Wastewater Treatment, Physical Science, Chemical/Biological Sensors, Advanced Materials/Nanotechnology
Photoresponsive Polymer-Coated Optical Fibers for Chemical-Free Water Treatment
Background In recent years, photoresponsive polymers have been considered for many applications from drug delivery to environmental sensors. Photons of light actuate the structure of these folded polymers, providing a means to control their opening and closing. Although various other types of stimuli can be used to activate polymers—including...
Published: 2/23/2023   |   Inventor(s): Paul Westerhoff, Shahnawaz Sinha, Juan Noveron
Keywords(s): Environmental
Category(s): Advanced Materials/Nanotechnology, Environmental Remediation/Wastewater Treatment, Physical Science
Fiber Optic Water PhotoCat Reduction
With the ever-expanding need for renewable energy sources growing, much time and energy is allocated to finding new and innovative technologies. Current membrane reactors focus on a specific class of photocatalyst or are limited to air purification only. This approach does not take into consideration a broader range of the electromagnetic spectrum,...
Published: 2/23/2023   |   Inventor(s): Paul Westerhoff, Kiril Hristovski, Shahnawaz Sinha
Keywords(s): Environmental, Fuel Cells, Energy, Materials and Electronics
Category(s): Advanced Materials/Nanotechnology, Bioanalytical Assays, Chemistries & Devices, Environmental Remediation/Wastewater Treatment
Non-Water Soluble Electrospun Polymeric Porous Fibers Containing Nanoparticles to Purify Water
Electrospinning is a fiber production method that uses electricity to draw charged threads of polymer solutions into fiber diameters. This technique is used in a variety of water purification applications. Current water purification applications use a post-treatment on the electrospun fibers in order to create pores that catch impurities. If the post-treatment...
Published: 2/23/2023   |   Inventor(s): Paul Westerhoff, Kiril Hristovski, Shahnawaz Sinha, Natalia Hoogesteijn Von Reitzenstein
Keywords(s): Environmental
Category(s): Advanced Materials/Nanotechnology, Environmental Remediation/Wastewater Treatment
Low Temperature Synthesis of Aluminum Oxide Inside Porous Media
Many countries are experiencing an increase in nitrate and fluoride contamination to their water supply due to the increase in fertilizer runoff, and aging infrastructure. Filter media is anything within a filter that changes that quality of water flowing through it. There and many types of media to choose from depending on the circumstances of one’s...
Published: 2/23/2023   |   Inventor(s): Kiril Hristovski, Jasmina Markovski, Paul Westerhoff, Shahnawaz Sinha
Keywords(s): Environmental
Category(s): Environmental, Environmental Remediation/Wastewater Treatment
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