★The New Water Threat They Can't Brush Off
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The New Water Threat They Can’t Brush Off
What was once treated like a fringe concern is now driving federal research, new testing efforts, and growing questions about daily exposure.
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Such regulation is much needed. HIGH-EFFICIENCY WATER FILTER REMOVES 99.9% OF MICROPLASTICS IN 10 SECONDS
Researchers at the Daegu Gyeongbuk Institute of Science and Technology (DGIST) in South Korea have developed a system that, while not as sophisticated, is no less effective. It's a purifier that removes all contaminants from water at an unprecedented speed.
The novelty of this invention lies in its ability to not only effectively remove microplastics from water but also eliminate volatile organic compounds (VOCs). These chemicals are responsible for most of the health effects associated with them. Another difference with this water purifier, which was published in the journal Advanced Materials, is that it increases the absorption time. Existing filters are characterized by their slow processing times.
The DGIST researchers had to conduct several experiments to arrive at the final result. First, they managed to synthesize a highly porous polymer by reacting it with a precursor. They emphasized that this precursor was "cheap," as existing technologies were not economical enough for large-scale use.
The scientists also experimented with an additional oxidation reaction in the polymer. Based on the results of this latter experiment, they introduced a hydrophilic functional group, composed of one oxygen atom and one hydrogen atom. This time, they achieved rapid absorption of micro-contaminants found in water.
In this way, they identified two alternatives. On the one hand, the material as a triazene covalent framework (CTF), which can remove organic dyes from industrial wastewater. And on the other, a filter that was even capable of absorbing sunlight and converting the energy into heat.
The solution was right in front of them: combine both technologies into one. Thus, a water purifier emerged whose results astonished even the researchers themselves. The new prototype was able to eliminate more than 99.9% of contaminants in just 10 seconds.
Furthermore, this new photothermal membrane boasts a high rejection rate for volatile organic compounds (VOCs), up to 98%. The combination of these two technologies not only offers unique results in this regard, but it is also capable of effectively removing more than 99.9% of mixed phenol derivatives, thanks to its synergistic purification system comprised of absorption and a solar membrane.
This is an unprecedented percentage. For example, acoustic waves, which have previously been used to clean water of microplastics, only achieved between 56% and 58% effectiveness.
https://www.indiatimes.com/explainers/news/explained-how-this-technology-can-filter-microplastics-from-water-in-just-10-seconds-589537.html
https://newatlas.com/environment/high-efficiency-water-filter-99-9-microplastics-10-seconds/
I got rid of the microwave last year. At first I missed it. I mainly used it for reheating food and beverages. I never actually cooked in it. I no longer miss it and feel stupid for having one in my home for fifty damn years. Microwaved food is the worse, and everyone seems to reheat using plastic.