The use of reclaimed wastewater in agriculture can be a solution for regions with water shortages or low rainfall periods; besides fulfilling the crop's water needs, it would also promote the recycle of nutrients. However, care should be taken regarding soil salinization, especially in closed environments such as greenhouses for the cultivation of ornamental plants. The domestic effluents are rich in sodium which can accumulate on soil and cause soil sealing. This study evaluated the use of effluents from anaerobic filters and intermittent sand filters in the production of rosebushes ( ""). The crop yield of the rosebushes irrigated with reclaimed wastewater exceeded the one obtained with traditional cultivation, reaching a value 31.8 % higher when employing nitrified effluent originated from intermittent sand filters, with no difference in the product quality. The salinity levels are below the critical limits found in the literature; however, there was a significant increase compared to the irrigation with drinking water.
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http://dx.doi.org/10.1007/s11270-013-1669-z | DOI Listing |
Food Environ Virol
January 2025
Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, Suite 2100, New Orleans, LA, 70112, USA.
Viruses can interact with a broad range of inorganic and organic particles in water and wastewater. These associations can protect viruses from inactivation by quenching chemical disinfectants or blocking ultraviolet light transmission, and a much higher dosage of disinfectants is required to inactivate particle-associated viruses than free viruses. There have been only few studies of the association of viruses with particles in wastewater, particularly in secondary treated effluent.
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.
View Article and Find Full Text PDFChemosphere
January 2025
Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan, ROC; Center for Sustainability and Energy Technologies, Chang Gung University, Taoyuan 33323, Taiwan, ROC; Biochemical Technology R&D Center, Ming Chi University of Technology, New Taipei City, 243303, Taiwan, ROC; Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Chiayi 61363, Taiwan, ROC. Electronic address:
Large amounts of wastewater are produced from semiconductor manufacturing, and the production energy consumption has skyrocketed with its global demand in recent years. Forward osmosis (FO) provides unique merits in reclaiming the wastewater if suitable draw solutes with high water flux, low leakage, and limited energy requirement in regeneration are available. Two lower critical solution temperature-ionic liquids (LCST-ILs), tetrabutylphosphonium trimethylbenzensulfonate ([P][TMBS]) and tetrabutylphosphonium maleate ([P][Mal]) were synthesized and systematically assessed as recycled draw solutes in FO for the water reclamation from the wastewater of Si-ingot sawing.
View Article and Find Full Text PDFJ Environ Manage
January 2025
Sapienza University of Rome, Department of Civil, Building and Environmental Engineering, Rome, Italy.
Reuse of reclaimed wastewater (RWW) in agriculture represents one of the key strategies to promote for reducing the pressures on water sources, as also fostered by the EU governance. Indeed, the European Regulation 741/2020 on water reuse, entered into force in 2023, was issued with the aim to extend the reuse of treated water in agriculture under safe conditions. It establishes the minimum quality requirements; it also foresees the possibility to add additional requirements, especially for contaminants of emerging concern (CECs), based on "scientific evidence" and the risk assessment.
View Article and Find Full Text PDFJ Environ Manage
January 2025
College of Business and Economics, Australia National University, Canberra, Australia. Electronic address:
Improving water reuse efficiency from a recycling perspective is claimed to be a better way to alleviate global water scarcity and water pollution. This study opens the internal "black box" of China's water reuse system driven and decomposes water reuse system into water use, wastewater treatment and reclaimed water reuse stages, and selects input-output indicators based on SDG6. Then, it proposes a dynamic three-stage DEA model to assess the water reuse efficiency.
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