Search Results - water+purification

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Activated sludge process is the biotic conversion of organic matter of wastewater to CO2 and biomass. The biological conversion of organic compounds in activated sludge relies on the efficient transfer of dissolved oxygen. Oxygen mass transfer from the gas phase to the liquid phase and microbial oxygen consumption are critical for effectively removing...

Published: 4/16/2025 | Inventor(s): Onur Apul, Deborah Bouchard, Sergi Garcia-Segura, John Graf

Keywords(s): PS-Advanced Materials and Nanotechnology, Wastewater Treatment, Water Purification, Water Treatment and Remediation

Category(s): Advanced Materials/Nanotechnology, Environmental Remediation/Wastewater Treatment, Physical Science

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: 2/13/2025 | Inventor(s): Paul Westerhoff, Francois Perreault, Sergi 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

Low-cost photothermal composites for solar-assisted desalinization and oil-spill cleanup

Problem Current methods for water decontamination and desalination of ocean water to provide clean drinking water are time consuming and expensive. The materials that have previously been reported for these functions are difficult and expensive to synthesize. Additionally, these materials usually have drastic limitations such as being mechanically...

Published: 12/11/2023 | Inventor(s): Donglei Fan, Weigu Li

Keywords(s): Decontamination, Desalinization, Water collection, Water purification

Category(s): Physical sciences > Materials, Physical sciences > Energy > Renewable, green, or transitional energy

Metal Matrix-Hydrophobic Nanoparticle Composites for Promoting Dropwise Condensation

Water vapor condensation is an essential aspect of many technologies in energy generation, desalination, and air conditioning. An increased heat transfer rate during water vapor condensation could lead to considerable economic savings as well as environmental benefits. Hydrophobization improves heat transfer by switching the condensation mode from filmwise...

Published: 2/13/2025 | Inventor(s): Konrad Rykaczewski, Viraj Damle

Keywords(s): Chlorine Resistant, Engineered Osmosis, Environmental, Film, Fuel Cells, Energy, Materials, Materials and Electronics, Mechanical and Manufacturing, Membrane, Nanoparticles, Reverse Osmosis, Water Purification

Category(s): Applied Technologies, Energy & Power, Environmental, Physical Science, Manufacturing/Construction/Mechanical

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: 2/13/2025 | Inventor(s): Kiril Hristovski, Paul Westerhoff

Keywords(s): Chlorine Resistant, Engineered Osmosis, Environmental, Film, Materials, Membrane, Nanoparticles, Reverse Osmosis, Water Purification

Category(s): Environmental