Water purification technology gives "coffee foaming body" a new meaning.
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 the journal ACS Sustainable Chemistry and Engineering (ACS Sustainable Chemistry & Engineering).
- Prev
Impression of European GEVALIA Coffee Taste
Accustomed to drinking instant coffee every day, I was not very interested in this kind of coffee at first. Ha ha, instant coffee is simply torture for a person who likes to taste coffee. However, the taste and taste of instant coffee are very suitable for office workers and friends who have just started to drink coffee. Carefully roasted American coffee beans with milk, that kind of mellow and fragrant taste
- Next
Why do IT bigwigs like Google Twitter invest in this coffee shop?
A few years ago, coffee chains were in a fast-vanishing era, and people were keen to line up to buy a cup of coffee that could be ready in a few minutes, even though it had a mediocre taste. Times have changed, and when people's demand for coffee is no longer limited to pick-me-up, an innovation is imperative. When it comes to innovation, we have to mention Blue bottle Coffee and its founder James Freeman. Freeman used to be a
Related
- Unexpected! Mstand actually launched scallion pancakes?!
- Why are cooperatives more common in Ethiopian coffee companies? What are the characteristics of Guodin coffee?
- White expectations! Manner's Peripheral Cup was "only announced but not included"?!
- Rain resumes in Brazil! Coffee bean production rises and prices fall
- Why is latte bitter? What is the ratio of coffee to milk in Latte? How strong should the coffee foam be?
- What is the best sugar in coffee? What is the difference between white sugar and yellow sugar? How to make a Camelot latte?
- How should coffee beans be preserved? The four coffee beans stored cannot be "touched"! How to store coffee beans best?
- Why can't an 18-gram powder bowl hold 18 grams of coffee powder? How good is the grind of espresso? How to determine whether the thickness of coffee beans is appropriate?
- Somalia expelled Ethiopian diplomats! Coffee export problem is serious
- Where is Mantelin coffee mainly grown? What is the Ateng in Indonesian coffee?