Emissions reductions may not meet expectations, and groundwater use will likely increase.
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In situ formed Se-TiO as a highly reusable photocatalyst for selenium reduction and removal from industrial wastewater.
Chemosphere
February 2025
Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St., Toronto, Ontario, M5S 3E5, Canada; Institute for Water Innovation, University of Toronto, 55 St. George St., Toronto, Ontario, M5S 1A4, Canada; Institute of Biomedical Engineering, University of Toronto, 164 College St., Toronto, Ontario, M5S 3G9, Canada. Electronic address:
Selenium (Se) release from anthropogenic activities such as mining, power generation, and agriculture poses considerable environmental and ecological risks. Increasing prevalence and awareness of Se-related issues have driven the development of many innovative Se treatment technologies. Photocatalysis has shown promise towards Se removal from industrial wastewaters with minimal residuals, and is generally considered a low-cost, robust, non-toxic, and potentially solar-powered method.
View Article and Find Full Text PDFA sensitive system based on radon amplification at soil-air interface: Aiming to advance earthquake precursor research.
J Environ Radioact
September 2024
Health, Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India; Homi Bhabha National Institute, Mumbai, 400094, India.
Article Synopsis
- Radon, a radioactive gas, is useful in geophysical research, particularly in detecting stress signals within bedrock, but traditional monitoring methods often lack the necessary sensitivity and face interference from weather conditions.
- This study introduces a new approach that measures radon concentration gradients at the soil-air interface, increasing sensitivity and effectively detecting stress-induced radon signals linked to seismic activity.
- The researchers propose the "Bhabha Radon Observatory for Seismic Application (BhaROSA)," a solar-powered monitoring system that outperforms traditional methods and aims to create a large database for better understanding and predicting earthquakes, while also advocating for international collaboration and the use of deep learning in the analysis of precursor signals.
Solar-enhanced lithium extraction with self-sustaining water recycling from salt-lake brines.
Proc Natl Acad Sci U S A
June 2024
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
Article Synopsis
- - Lithium is becoming a crucial resource for energy transformation and decarbonization, but current extraction methods face challenges like slow processes and high water use, especially in dry regions.
- - A new solar microevaporator system has been designed to enhance lithium extraction from hypersaline salt-lake brines by efficiently harnessing solar energy, significantly improving recovery rates and water management.
- - This system can recover nearly 100% of water, demonstrating effective sustained lithium extraction from natural brines while aiming for low water and carbon consumption, contributing to sustainability goals.
Solar-powered detection of organic dyes using nitrogen-doped N-TiO/AgO nanorod arrays.
Mikrochim Acta
May 2024
School of Materials Science and Engineering, Anhui University, Hefei, 230601, P.R. China.
Organic pollutant detection has caused widespread concern regarding due to their potential environmental and human health risks. In this work, a nitrogen-doped titanium dioxide/silver oxide (N-TiO/AgO) composite has been designed as a sensitive photoelectrochemical (PEC) monitoring platform of organic dyes. Sensitive determination relies on the outstanding PEC performance of N-TiO/AgO.
View Article and Find Full Text PDFSolar-powered O delivery for the treatment of children with hypoxaemia in Uganda: a stepped-wedge, cluster randomised controlled trial.
Lancet
February 2024
Department of Pediatrics, University of Alberta, Edmonton, AB, Canada; Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada; School of Public Health, University of Alberta, Edmonton, AB, Canada; Stollery Science Lab, Edmonton, AB, Canada; Women and Children's Health Research Institute, Edmonton, AB, Canada. Electronic address:
Background: Supplemental O is not always available at health facilities in low-income and middle-income countries (LMICs). Solar-powered O delivery can overcome gaps in O access, generating O independent of grid electricity. We hypothesized that installation of solar-powered O systems on the paediatrics ward of rural Ugandan hospitals would lead to a reduction in mortality among hypoxaemic children.
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