Conditioning of reclaimed water with minerals and trace elements by means of filters made of silver-plated natural minerals containing calcium, magnesium, fluoride and iodine ions has been investigated. On the basis of the investigations a complex filter made of silver plated minerals--dolomite and fluorite--has been developed. This filter allows simultaneous mineralization and decontamination of reclaimed water and preparation of biologically complete potable water.
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J Environ Manage
January 2025
Urban Water Systems Engineering, School of Environmental Science and Engineering, Tianjin University, Room 604, 59 Building, #135 Yaguan Road, Haihe Education Park, Tianjin, China. Electronic address:
Providing different grades of water is a promising solution to address the challenges of urban water supply, including water quality, quantity, and energy consumption. However, quantifying the effectiveness of this strategy and understanding its economic, environmental, and social impacts remain significant challenges. This study introduces a simulation-based method to predict household water use and evaluate the applicability and sustainability of the water supply system.
View Article and Find Full Text PDFEnviron Microbiol
January 2025
Division of Infectious Diseases, Department of Medicine, and Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
The Canadian province of Alberta contains substantial oilsands reservoirs, consisting of bitumen, clay and sand. Extracting oil involves separating bitumen from inorganic particles using hot water and chemical diluents, resulting in liquid tailings waste with ecotoxicologically significant compounds. Ongoing efforts aim to reclaim tailings-affected areas, with protist colonisation serving as one assessment method of reclamation progress.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
January 2025
Transport Research Centre, Líšeňská 33a, 636 00, Brno, Czech Republic.
The paper deals with an analysis of the amount of 16 polycyclic aromatic hydrocarbons (PAHs (Polycyclic aromatic hydrocarbons-16 defined by US EPA.)) released from reclaimed asphalt mixtures used in base layers of road surfaces and in binder layers in road construction using cold in-place recycling. For the ten samples tested, the sum of 16 PAHs was determined directly for the crushed asphalt mixture and for its 24-h leachate.
View Article and Find Full Text PDFSensors (Basel)
December 2024
Faculty of Engineering Science, University of Bayreuth, 95440 Bayreuth, Germany.
Molding sand mixtures in the foundry industry are typically composed of fresh and reclaimed sands, water, and additives such as bentonite. Optimizing the control of these mixtures and the recycling of used sand after casting requires an efficient in-line monitoring method, which is currently unavailable. This study explores the potential of an AI-enhanced electrical impedance spectroscopy (EIS) system as a solution.
View Article and Find Full Text PDFWater Res
January 2025
School of Science, RMlT University, Melbourne, VC 3000. Australia.
Electrochemical recovery of zero-valent sulfur (S) from thiourea (TU) wastewater offers a promising waste-to-value strategy that expects to promote the sulfur resource cycle in water treatment but still suffer from electrode poisoning and sulfur over-oxidation. Herein, we designed a metal-free CNT electrochemical membrane for selective oxidation of thiourea and recovery of S. We found that defect sites on the carbon nanotube surface enable direct electron transfer for thiourea oxidation and may form carbon-sulfur bridge bonds, thereby facilitating the generation of S and urea.
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