According to researchers, traditional technologies requires two processing phases, including the heating of raw materials and additional equipment, which makes them costly. To simplify the process, scientists decided to refuse the preliminary preparation of coffee wastes and to check how effective an economic approach could be.
They performed experiments in which coffee areas were mixed with potassium hydroxide and pyrolysis was pyrolyized at 800 degrees Celsius temperature. This made it possible to obtain a porous material that could capture iron, copper and petroleum products. The mass ratio is optimal with waste and activator 10: 1.
Coffee wastes have long attracted attention as fertilizer, but their re -use has been limited. It shows that new development can become the basis of cheap and effective filters used in water treatment and other environmental tasks.
Source: Ferra
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