Chilean scientists develop eco-friendly water purification method using seaweed

Scientists from BRICS countries and their partners continue to seek innovative solutions for water purification to protect the environment and improve living conditions for local communities.

Egyptian researchers have also developed a natural water purifier using discarded eggshells. The process involves cleaning, drying, and grinding the shells into a powder that is then used to filter heavy metals and bacteria from water. Tests have shown that this method can remove up to 94.4 per cent of lead, 64.7 per cent of cadmium, and 51.4 per cent of iron. This low-cost solution requires no chemicals, making it particularly useful for low-income rural communities. According to Daily News Egypt, a partner of TV BRICS, it can be integrated into both household and public water treatment systems.

In Russia, chemists from Saint Petersburg State University have developed an innovative material capable of absorbing oil from water. Derived from petroleum-based products, the material has a structure of ultra-thin, sponge-like fibres that rapidly absorb pollutants. The recovered oil can be reused, according to the university’s press service, the technology has proven effective in real-world tests.

In India, a portable automated device has been created to detect pesticide residues in water, food, and the environment. Using gold nanoparticles and aptamers, it identifies substances such as malathion. When a harmful element is detected, the system changes colour, enabling easy measurement and providing fast, reliable results. As reported by IANS, a partner of TV BRICS, this technology enables real-time monitoring, benefiting farmers and food safety agencies.