本集內(nèi)容

Going for gold in e-waste 電子垃圾變黃金

學(xué)習(xí)要點

有關(guān) “chemical processes（化學(xué)過程）” 的詞匯

邊看邊答

What does the Royal Mint do?

文字稿

How do you turn electronic waste like this into gold?

如何把這樣的電子垃圾變成黃金？

The Royal Mint, whose job it is to make coins for the UK, has found a way to do exactly that. First, they take the electronic components from laptops and phones and place them in a secret solution.

英國皇家鑄幣廠負責(zé)為英國鑄造硬幣，他們找到了一種方法可以 “點石成金”。首先，要從筆記本電腦和手機中取出電子零部件，放入一種神秘溶液中。

The chemicals extract what’s inside and produce this brown powder. It’s then heated for 30 minutes at more than 1,000 degrees Celsius. The end result is pure gold!

這種化學(xué)物質(zhì)會提取里面的東西，從而產(chǎn)生這種棕色粉末。然后，在超過1000攝氏度的溫度下加熱30分鐘。最終結(jié)果是純金！

Matthew James, Head of R&D, The Royal Mint
We’re hoping to recover all of the metals on the board. Primarily gold to start with, but we are looking at copper, nickel, tin, particularly tin, and some silver.

馬修·詹姆斯       英國皇家鑄幣廠研發(fā)負責(zé)人
“我們希望能收回電路板上的所有金屬。一開始主要是黃金，但我們也收銅、鎳、錫，尤其是錫，還有些銀。”

More than 50 million tonnes of e-waste, that’s waste from old electronics products, is produced worldwide each year. But only 20% is recycled.

全世界每年產(chǎn)生5000多萬噸電子垃圾，電子垃圾是來自廢舊電子產(chǎn)品的垃圾。但只有20%被回收利用。

Experts believe that as much as 7% of the world’s gold may be contained in e-waste. And by extracting it, that gold can be used for coins like these.

專家認為，電子垃圾中可能含有多達世界上7%的黃金。提取出的黃金可以用來鑄造這樣的硬幣。

詞匯

components 零部件

extract 提取

heated 被加熱

end result 最終結(jié)果

recover 收回，追回

問題答案

The Royal Mint makes coins for the UK.