Water purification technology gives new meaning to "coffee foam"
Scientists have proved through experiments that waste coffee grounds can not only be used as road building materials and biodiesel, but also effectively remove heavy metal ions such as lead and mercury from water. A team of scientists led by the Genoa's Istituto Italiano di Tecnologia Institute of Technology in Italy have developed a foam "filter" made from coffee grounds. The foaming "filter" is made of 60% coffee powder and 40% silicone elastomer.
When dried, these mixtures form a solidified form and leave small pores, thus forming a foaming body with filtering effect.
In the experimental results, the researchers found that the foam filter successfully removed 99% of mercury and lead from static water within 30 hours. Even in flowing water, 67% of the lead that is harmful to health has been successfully removed.
The findings are published in ACS Sustainable Chemistry and Engineering (ACS Sustainable Chemistry & Engineering).
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The zoo coffee wants to "de-Han" to survive.
Zoo Coffee recently announced a new plan for this year. Zoo Coffee should not only solve the chaos of joining, but also think about how to quickly eliminate the negative impact of running events on the brand. In this regard, Jin Jianyou, chairman of Zoo Coffee, made it clear that he hopes to break away from the setting of Korean coffee, and hopes to accompany you by changing to a direct marketing model and a representative of Korean coffee brands that have lost the market.
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Google's new service in India will connect places such as shopping malls, cafes, etc.
Google, owned by Alphabet, said on the 27th that it has launched a new Internet service platform, Google Station, in India, which aims to expand its influence in the Indian market. The search engine giant strives to make more people use Google's online platform, the report said. With Google Station, Google will launch Wi-Fi hotspots in places frequented by people, such as merchants
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