idea gold digger actual from electronic e waste recycling

The idea of recycling ewaste or doing urban mining isnt new, right Its not a new trend, but the term urban mining, has been introduced recently to explain one particular concept. Take the example of gold. Gold is present in nature, and, on average, the concentration of gold is about 0. 5 grams of gold for every one ton of material. So if you go in your garden and start digging, after you make a big hole and dig out one ton of material, you have the chance to find half a gram of gold. Thats the average concentration on Earth. Of course, in some places, gold is more concentrated, like gold mines. So, there, you dig one ton of material, and you can find five or six grams of gold. Now, if you look at how much gold you have in a single mobile phone, its obviously not a lot. But in one ton of mobile phones, there is usually about 350 grams of gold. Thats 80 times higher than the concentration you have in gold mines. Thats why