Don't throw coffee grounds, can also be used to purify polluted water-coffee, Green-IT information

A distributed rich aroma of coffee in the morning is great for refreshing. But drinking coffee and leftover coffee grounds with the exception of online teaching in addition to odors as well as fertilizer, now used by researchers to purify contaminated water.

Coffee contains chemicals such as fatty acids, fiber and polyphenols, which can be combined with heavy metal like activated carbon, then the coffee powder from the water filter, you can get clean water.

In order to facilitate the storage and use of researchers silicone adds sugar and coffee into the coffee grounds, coffee grounds into a sponge-like block of material. Coffee grounds after the block is cast into the water, and sugar is dissolved, coffee grounds that will quickly spread, combined with the metal ions in the water.

Coffee grounds can remove heavy metals such as lead and mercury. Experimental results show that, in the still water, coffee grounds per 200 mg in the water can be removed in a 30-hour time 99% of the lead and mercury. In flowing water or metal ions in the water content of more than twenty one-zeros, coffee grounds, still able to remove 50 to 60% lead ions. The efficiency of the purification efficiency and most commercial filters.

咖啡渣别扔，还能用来净化污染水 - 咖啡,环保 - IT资讯

一杯散发浓郁香气的咖啡在早上很适合用来提神。但是喝完咖啡后剩下的咖啡渣除了网上教的可以除异味还有做肥料之外，现在还被研究人员用来净化被污染的水资源。

咖啡内含有脂肪酸、纤维素和多酚类等化学物质，它们可以像活性炭一样与重金属结合，随后再将这些咖啡粉末从水中过滤掉，就能得到洁净的清水。

为了方便存储和使用，研究人员往咖啡渣里添加糖和咖啡硅胶，将咖啡渣制成一块块海绵状的块状物质。咖啡渣块被扔进水中后，糖分被溶解后，咖啡渣块将迅速散开，与水中的金属离子相结合。

咖啡渣可以去除水中的铅和汞等重金属离子。实验结果表明，在静止的水中，每200毫克咖啡渣能在30小时时间内去除水中99%的铅和汞。在流动水或是金属离子含量超过十亿分之二十一的水中，咖啡渣依然能去除50 %至60%的铅离子。该净化效率与大多数商用过滤器的效率相当。