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extrair ouro de lixo eletrônico

Técnica inovadora extrai até R$ 170 mil em ouro por tonelada de lixo eletrônico usando soro de leite como base

Swiss Technique Extracts Up to R$ 170,000 in Gold per Ton of E-Waste Using Whey. Brazil Could Benefit from Sustainable Innovation

Bruno Teles 24/03/2025 at 11:35

Most commented

8

Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.

Bruno Teles 08/06/2026 at 17:23

7

Interesting facts

Dissatisfied with seeing people sleeping on the street, a man named Ryan Donais started building small mobile homes so that homeless people can escape the cold, each equipped with a bed, running water, electricity, and heating.

Maria Heloisa Barbosa Borges 03/06/2026 at 23:35

6

Interesting facts

Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.

Flavia Marinho 05/06/2026 at 20:50

6

Interesting facts

A giant brown band visible from space, approximately 8,850 kilometers long, connected Africa to America in the Atlantic Ocean, and satellites revealed that it is neither land nor pollution, but the largest accumulation of seaweed in the world, which broke records in 2025.

Bruno Teles 08/06/2026 at 00:09

3

Science and Technology

Two 17-year-old Kenyans use coconut shells, corn cobs, and recycled materials to create an exhaust filter that reduces 93.3% of pollutant particles and wins an environmental award in Africa.

Romário Pereira de Carvalho 04/06/2026 at 11:41

2

Consumers eat six times more chicken than in the 1960s, global meat supply quadruples in 60 years, and FAO report reveals the invisible cost on the plate: livestock could drive 80% of the increase in agricultural emissions over the next decade.

Carla Teles 06/06/2026 at 18:29

2

Motorcyclist sees excavator arriving at the edge of a river in Bosnia, calls neighbors in minutes and turns a hydroelectric project into a resistance lasting more than 10 years with five expired concessions.

Flavia Marinho 07/06/2026 at 15:17

Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.
10/06/2026 by Dan

Construction of this canal should not be pegged on Terrorism…
Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.
10/06/2026 by Alton

Water is a scarce resource n non renewable for that…
In just one cast, fishermen are surprised to capture 14,096 mullets in Bombinhas and close a historic season with 58,000 fish; scene recorded in the Santa Catarina paradise marks the last day of the 2026 season.
10/06/2026 by Fr

England got nothing like that the government put a stop…
In a laboratory in the interior of Australia, a striped cub took its first steps and brought back an animal that had been extinct for nearly a century.
10/06/2026 by Antoinette

What was the host mother? One individual cub does not…
Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.
10/06/2026 by Joseph w Kimani

It's one of the best ideas in Africa
A giant brown band visible from space, approximately 8,850 kilometers long, connected Africa to America in the Atlantic Ocean, and satellites revealed that it is neither land nor pollution, but the largest accumulation of seaweed in the world, which broke records in 2025.
10/06/2026 by Eli Rudd

This is a great opportunity to make ethanol by gathering…
Instead of burning or burying old tires, an American city is transforming about 2,000 of them into the street itself, paving its first sections with a quieter and more durable rubber asphalt.
10/06/2026 by John Sanchuck

I live in Regina sask canada. We get extreme weather…

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