For Elena Fernandez de la Iglesia, from the Faculty of Law at the Complutense University of Madrid, taxing producers and consumers according to the amount and type of material used is one of the best tools for promoting the circular economy. The topic was discussed during FAPESP Week Spain.
The Guarani Aquifer is the source of drinking water for some 90 million people and is being overused in several areas of São Paulo state (Brazil). The researchers deployed stable isotopes to estimate the relative contributions of rainwater and groundwater to the maintenance of springs in the region.
The strategy developed at the University of São Paulo uses magnetic nanoparticles that bind to tiny plastic particles and permit their removal with the aid of a magnet.
The solution, developed by a startup supported by FAPESP, enables farmers to forecast water availability for a six-month horizon.
The device developed at the University of São Paulo is inexpensive, environmentally friendly and easy to use. A patent application has been filed.
The drug accumulates not only in water, but also in sediments and marine organisms, and poses a high ecological risk, said Camilo Seabra, a professor at the Federal University of São Paulo, during FAPESP Week Illinois.
Investigators affiliated with two FAPESP-supported research centers conducted an experiment using actual effluent from the textile industry. The results are detailed in the journal Chemosphere.
Brazilian scientists tested a simple and sustainable method for monitoring and degrading a mixture of polycyclic aromatic hydrocarbons, compounds present in fossil fuels and industrial waste.
An electrode with films of iridium dioxide and niobium oxide on a titanium substrate removed molecules of the drug levofloxacin, considered an emerging pollutant.
Brazilian researchers tested a photocatalyst based on zinc oxide and found it to perform well in degrading sertraline, an emerging pollutant.
The device, which combines magnetic fluorescent nanoparticles, was designed at the Center for Development of Functional Materials, a research center supported by FAPESP and hosted by the Federal University of São Carlos.
Scientists at the State University of Campinas analyzed samples taken at 15 points in the basin comprising the Piracicaba, Capivari and Jundiaí Rivers, and detected 45 contaminants, including compounds from agricultural, industrial and household effluents not yet regulated by Brazilian legislation.
The technique uses functionalized cellulose fibers from sugarcane bagasse to remove residues of the herbicide from an aqueous medium.
Researchers sampled oysters and mussels at three locations between the port of Santos and the nearby city of Guarujá. Their aims included assembling data as a basis for public policy on basic sanitation. The law does not currently require removal of microplastic particles from sewage.
Researchers at the University of São Paulo investigated the effects of five concentrations of glitter on two strains of cyanobacteria. Use of the material in makeup, party costumes and decorations should be reconsidered, they argue.
Technology developed at the University of São Paulo increases the precision of chemical analysis and reduces the use of expensive toxic solvents. The immediate focus was on parabens, potentially carcinogenic compounds used in industry as preservatives.
Researchers at the University of São Paulo and collaborators showed that the aquatic plant can scavenge up to 34 times more manganese from contaminated soil than other plants found in similar environments.
Brazilian researchers have designed a new low-cost anaerobic reactor that uses a bacterial biofilm on a sheet of polyurethane foam. The goal is to enable more wastewater treatment plants in Brazil to achieve nitrogen removal and reduce water body contamination.
Researchers at the University of São Paulo have developed a portable device made from graphite, silver particles and polyurethane that detects BPA, a chemical compound harmful to health and considered an indicator of the presence of emerging pollutants in river or tap water.
Brazilian researchers analyzed the mechanisms by which estuarine plants absorb iron at the mouth of the Doce River, which was polluted by massive amounts of tailings from the 2015 Fundão dam disaster.
Hybrid material made from magnetite nanoparticles sticks to contaminants and can be removed from water by a magnet. The technique can be adapted for use in removing synthetic dyes, drugs, hormones and pesticides.
A simple and affordable solution developed by researchers at the University of São Paulo and a Nigerian collaborator eliminates even multi-resistant bacteria. Clay, papaya seeds and banana peel are among the raw materials used by the group.
Water shortages cause economic losses for industry and agriculture, among other sectors, as well as damage human health, warns a report issued by the Brazilian Platform on Biodiversity and Ecosystem Services.
Reservoir cascade steadily improves water transparency by retaining matter in suspension that affects light absorption, as measured by a study conducted in Brazil.
