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Floating photovoltaics represent a promising alternative to land-based solar panels. A large-scale analysis, comprising 1 million water bodies worldwide, shows that floating photovoltaics could contribute 16%, on average, of the electricity demands of some countries.
Not accounting for coupled land–water carbon fluxes can lead to flawed understanding and incorrect assessments of climate impact and feedback on the Arctic carbon cycle. There is a need for collaborative studies, between scientific disciplines and approaches, that integrate carbon transformations and fluxes across the Arctic land–water continuum.
The use of mechanical energy in wastewater treatment has been associated with accelerating physical mixing in compartments, and its effect on microbial activities has not been explored. The implementation of the developed mechano-driven bio-denitrification approach in real wastewater treatment provides a new method for wastewater denitrification.
Detailed modelling elucidates how increased vegetation water use in a warmer climate will reduce groundwater recharge, storage and subsequent exfiltration to further exacerbate declines in Colorado mountain headwater streamflow.
Nanotechnology-based semipermeable membranes have been actively studied for their potential application in the production of clean water. Fundamental nanotechnology research has been turned into award-winning water industry products.
This study employs a high-resolution, integrated hydrological model extending 400 m into the subsurface. Application of the model in a representative headwater basin in the Colorado River shows that groundwater storage loss will amplify streamflow losses in a warmer world.
Recent learnings in non-sewered sanitation remain fragmented; this Review integrates findings into one consistent terminology to identify synergies in scientific findings and explore future potential application of new technologies.
A sustainable and chemical-free strategy for superoxide generation based on rechargeable carbonaceous supercapacitors can enable effective pollutant abatement.
Complete defluorination of per- and polyfluoroalkyl substances (PFAS) by a non-thermal technology is not easy to achieve. A rationally designed photochemical–electrochemical treatment train realizes complete defluorination of PFAS mixtures in complex water matrices.
Demonstrating the complete defluorination of PFAS confirms PFAS mineralization and mitigated risk. The design of a UV/sulfite–electrochemical oxidation process achieved complete defluorination of various PFAS and removal of organics in aqueous film-forming foam.
Water can be a tool for peace and prosperity. But water can also create tensions if usage is unfairly shared. World Water Day 2024 focused on the importance of working together to make water a catalyst for a more peaceful society.
Electricity trade between Ethiopia, Sudan and Egypt is proposed as a mechanism for alleviating Nile water disputes. Simulations show potential benefits, including reduced water deficits, lowered emissions and increased financial returns.
There is a pressing need to develop effective treatment technologies for 6PPD-quinone, a newly discovered micropollutant, given its prevalent presence in water. The proposed advanced oxidation of IO4− activation under solar light irradiation achieves efficient degradation of 6PPD-quinone at environmental concentration levels.
Proton transfer time-of-flight mass spectrometry offers a new analytical tool to measure aqueous concentrations of volatile analytes in real time by the approach of headspace sampling, holding significant promise for advancing understanding of water chlorination chemistry.