Através do uso de energia solar, novo dispositivo é criado por cientistas dos EUA para remover impurezas da água

Using Solar Energy, New Device Created by U.S. Scientists to Remove Impurities from Water

Written by Roberta Souza

Published on 09/04/2021 at 15:18

Updated on 09/04/2021 at 17:02

Usina de energia solar/ Fonte: CicloVivo

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Scientists From Princeton University in the US Created a Device That Filters Water Through the Use of Solar Energy, Making It Drinkable

At Princeton University in the US, a group of scientists created a filter that works through solar energy to make water drinkable. The SAG (Solar Absorbent Gel) is a sponge that absorbs water at room temperature, which when exposed to sunlight, filters the water, retaining contaminants such as lead, oil, and metal. According to the scientists, this method can be used for at least ten cycles.

Filter Through Solar Energy

The creation by scientists in the US is not only a low-impact solution for the environment and ecology, but also low-cost and solely reliant on solar energy, thus an excellent opportunity in developing countries where drinking water is scarce.

Rodney Priestley, a scientist and corresponding author of the study, said that for him, the most fascinating aspect of this work was being able to operate completely off the grid, on both small and large scales. According to the scientist, the filter can also be used in underdeveloped countries where low-cost energy water purification is needed.

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Contract Signed for Construction of New Solar Power Plants in the State of São Paulo

The mayor Paulo Serra said that the city of Santo André, in the ABC Paulista region, may see the construction of four new solar power plants. The mayor of São Paulo stated that he signed a contract with a company for the design and installation of a photovoltaic solar plant project, signing a contract with Rennove Engenharia e Consultoria Ltda, worth R$ 326,500.

Construction of the 4 New Solar Power Plants

The project integrates plans to improve the maintenance and expansion of the city’s public lighting network. According to the Municipal City Hall of Santo André, in São Paulo, the goal is to implement up to four solar plants with a generation capacity of 1.2 MWh in the city to reduce expenses on inputs in the coming years.

The city hall of the state of São Paulo stated that “Despite being quite widespread in the private sector, through the installation of solar panels on residential and commercial rooftops, the cogeneration of electricity from photovoltaic systems in the public sector is restricted to small isolated projects. The initiative by Santo André City Hall to install municipal plants is unprecedented. Municipalities bear enormous energy costs to maintain the operation of schools, hospitals, public buildings, public lighting systems, among others.”

This is not the only project by Mayor Paulo Serra involving plants. Since the last administration, the potential for enabling PPP (public-private partnership) is quite high, and its projects include the construction of waste incineration plants and the energy they generate. This measure could replace the limited lifespan of urban waste landfills.

Using Solar Energy, New Device Created by U.S. Scientists to Remove Impurities from Water

Scientists From Princeton University in the US Created a Device That Filters Water Through the Use of Solar Energy, Making It Drinkable

Filter Through Solar Energy

Contract Signed for Construction of New Solar Power Plants in the State of São Paulo

Construction of the 4 New Solar Power Plants

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The Blood Falls of Antarctica hide a living ecosystem trapped under the ice for over 2 million years, where microbes survive without light, without oxygen, and without ever having seen the Sun.

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At over 8 meters tall and resembling a trunk, this creature dominated the Earth 400 million years before the dinosaurs — and science still doesn’t know what it was.

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Using Solar Energy, New Device Created by U.S. Scientists to Remove Impurities from Water

Scientists From Princeton University in the US Created a Device That Filters Water Through the Use of Solar Energy, Making It Drinkable

Filter Through Solar Energy

Contract Signed for Construction of New Solar Power Plants in the State of São Paulo

Construction of the 4 New Solar Power Plants

Seen from space, an image taken by an astronaut shows an unlikely oasis in the Saudi Arabian desert, protected by a terrain that slows the advance of sand, surrounded by green circles, remnants of an extinct lake and nearly 10,000 years of preserved history.

While the U.S. still faces limitations in deep space, China is developing unprecedented technology with strategic satellites that maintain communication with the far side of the Moon and aims for dominance by 2030.

In Botswana, a salt flat of up to 16,000 km² that was once an African megalake spends months as an absolute white desert, but during the rainy season it transforms into a shallow sea that reappears from nowhere and can be seen from space in the middle of southern Africa.

The Blood Falls of Antarctica hide a living ecosystem trapped under the ice for over 2 million years, where microbes survive without light, without oxygen, and without ever having seen the Sun.

Bavarian archaeologists unearthed a medieval skeleton that had an articulated iron hand in place of its left arm, and the discovery reveals that doctors were already creating sophisticated prosthetics over 500 years ago.

The CEO of Honor in Spain says that smartphones will change with AI, foldables, and even robot phones; the component crisis is making cheap models more expensive in 2026 and shifting the focus to premium.

Every time a river flows into the sea, an amount of energy equivalent to a 120-meter waterfall is silently wasted, but Japan has just inaugurated the world’s first power plant that captures this waste and transforms it into electricity 24 hours a day without sun, wind, or fuel.

Silicon Valley bets on a 100-hour battery that uses carbon and oxygen to store renewable energy for days and could turn a little-known chemical system into an alternative to critical metal batteries to tackle prolonged blackouts.

Canadian engineers want to compress air in underground caverns and build plants of up to 500 MW that function as giant lungs to store renewable energy for hours and stabilize entire electrical grids.

British engineers cool air until it turns into liquid, store energy for weeks, and create an “invisible battery” capable of sustaining the power grid when the wind stops and the sun disappears.

At over 8 meters tall and resembling a trunk, this creature dominated the Earth 400 million years before the dinosaurs — and science still doesn’t know what it was.

China inaugurates a 24 km monster that is a bridge, tunnel, and museum at the same time — and 90,000 cars pass through it every day.

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Brazil already has the largest electric buses in daily operation in the world: Goiânia has put 28-meter giants from Volvo on the streets to transform urban transport, placing the country at the center of a new showcase for urban mobility.

NASA announces the first interplanetary nuclear spacecraft in history destined for Mars and technology created to usher in a new era in deep space exploration: meet the SR-1 Freedom, equipped with a fission reactor and three helicopters inspired by Ingenuity to map Martian ice.