Search Results - kiril+hristovski

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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
Active Cumulative Samplers for Hexavalent Chromium and Other Oxo-Anions in Drinking Water
Oxo-anions, such as hexavalent chromium (Cr(VI)), arsenic (As) and selenium (Se), in potable water have been under much scrutiny recently from the media, policy makers, and environmental regulators. However, little is known about the hourly or daily variations in concentration of these dangerous carcinogens. Current evaluation practices involve infrequent...
Published: 2/23/2023   |   Inventor(s): Paul Westerhoff, Kiril Hristovski
Keywords(s): Environmental
Category(s): Applied Technologies, Chemical/Biological Sensors, Environmental, 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
Fabrication of Hydroxyapatite Based Hybrid Sorbent/Ion-Exchange Media for Simultaneous Removal of Fluoride and Other Contaminants
Background In smaller rural communities, producing potable water often does not involve the highly centralized treatment and distribution infrastructure seen in larger cities. Instead, smaller point-of-use or point-of-entry water treatment solutions provide more cost-effective approaches. With ever-tightening water quality regulations, more focused...
Published: 2/23/2023   |   Inventor(s): Jasmina Markovski, Kiril Hristovski
Keywords(s): Environmental
Category(s): Physical Science, Environmental Remediation/Wastewater Treatment, Environmental, Advanced Materials/Nanotechnology
Titanium Dioxide Hybrid Ion Exchange Resin for Simultaneously Removing Arsenic & Nitrate
Ion exchange is widely used within industry and public infrastructure to remove metallic, organic, or inorganic particles from water. Ion exchange filters contain activated carbon or spongy polymer beads, called resin, which have been tailored to remove a specific group of contaminants with similar chemistry. Hybrid ion exchange resins are capable of...
Published: 2/23/2023   |   Inventor(s): Kiril Hristovski, Paul Westerhoff
Keywords(s): Chlorine Resistant, Engineered Osmosis, Environmental, Film, Materials, Membrane, Nanoparticles, Reverse Osmosis, Water Purification
Category(s): Environmental
Concept of a System for Photocatalytic Reduction of Nitrate in Water
Nitrate is the most prevalent pollutant of ground water in the United States and is very common worldwide. Common sources of nitrates are fertilizers, animal feedlots, municipal wastewater, and septic systems. The level of nitrate is regulated in drinking water because high nitrate levels are known to cause Methemoglobinemia, a disease that prevents...
Published: 2/23/2023   |   Inventor(s): Paul Westerhoff, Kyle Doudrick, Kiril Hristovski
Keywords(s): Chlorine Resistant, Engineered Osmosis, Environmental, Film, Materials, Materials and Electronics, Mechanical and Manufacturing, Membrane, Nanoparticles, Reverse Osmosis, Water Purification
Category(s): Environmental