Universidade desenvolve dessalinização solar sem salmoura tóxica

Pesquisadores da Universidade de Rochester criaram um sistema movido a energia solar que converte água do mar em água doce, evitando a produção de salmoura líquida prejudicial. A tecnologia utiliza painéis com texturização a laser para evaporar a água e coletar os sais como sólidos.

O sistema emprega painéis metálicos pretos tratados com lasers de femtossegundo para absorver a luz solar e conduzir a água do mar por uma superfície ativa. À medida que a água evapora, os sais são direcionados para regiões passivas usando o efeito de anel de café, evitando obstruções durante a operação. Testes com amostras dos oceanos Pacífico, Atlântico e Índico confirmaram a extração contínua de água doce e o desempenho de autolimpeza.

Artigos relacionados

Photorealistic close-up of a POMbrane crystalline membrane with 1nm pores for molecular filtration
Imagem gerada por IA

Nature-inspired “POMbranes” use uniform 1-nanometer pores for ultra-selective molecular filtration

Reportado por IA Imagem gerada por IA Verificado

Researchers from India and Singapore report a crystalline membrane made from polyoxometalate clusters whose intrinsic openings are about 1 nanometer wide, enabling unusually sharp molecular separations that could help lower energy use in some industrial purification and water-reuse steps.

Scientists at Osaka Metropolitan University have developed an artificial photosynthesis device that converts sunlight, water, and carbon dioxide into formic acid without using batteries. The self-regulating electrolyzer adjusts automatically to changing light levels, simplifying the process and cutting costs.

Reportado por IA

Researchers at Columbia Engineering have developed a new technique to pull lithium from underground brines more quickly and with less environmental harm. The approach uses a temperature-sensitive solvent and avoids the large evaporation ponds common in current production.

Researchers from the University of Michigan have deployed two prototype wave energy devices on Beaver Island in Lake Michigan. The effort aims to generate electricity locally and reduce dependence on vulnerable underwater cables from the mainland.

Reportado por IA

An international research team has developed a device that can direct, switch and store thermal radiation without ongoing power. The breakthrough separates heat absorption from emission, overcoming a long-standing materials science limit known as reciprocity.

Researchers have modified bacteria to manufacture gadusol, a UV-protective substance found in fish eggs. The advance could support development of transparent, eco-friendly sunscreens. The work was led by a team at Jiangnan University in China.

Reportado por IA

The seven states that rely on the Colorado River have submitted a $50 billion wish list of projects to address chronic water shortages. Federal officials are considering desalination plants, cloud seeding, and other supply-boosting measures as negotiations over cuts stall.

quarta-feira, 22 de julho de 2026, 08:16h

HZDR advances PFAS breakdown methods with cavitation and plasma

segunda-feira, 20 de julho de 2026, 06:44h

Researchers test two methods to destroy forever chemicals

terça-feira, 23 de junho de 2026, 15:04h

Egypt Ministry and Coca-Cola discuss drainage water project

terça-feira, 16 de junho de 2026, 06:00h

Scientists identify hydrogen radicals as key to breaking down PFAS

quinta-feira, 04 de junho de 2026, 11:13h

Tech companies adjust data center cooling amid water concerns

terça-feira, 02 de junho de 2026, 10:00h

University develops catalyst for low-temperature hydrogen production

segunda-feira, 01 de junho de 2026, 07:09h

Geoengineering trials thicken Arctic sea ice with mixed results

quarta-feira, 20 de maio de 2026, 06:39h

Lab tests show hydrogen can be made from rocks while storing CO2

terça-feira, 12 de maio de 2026, 16:47h

Engineered algae removes microplastics from water

segunda-feira, 04 de maio de 2026, 06:31h

Scientists develop sunlight method to convert plastic waste into hydrogen

Este site usa cookies

Usamos cookies para análise para melhorar nosso site. Leia nossa política de privacidade para mais informações.
Recusar