Precious metals with bacteria quickly
Birmingham University, a research group said that they invented the world's first use than the current method is much faster and cheaper method of recycling precious metal catalysts used car.
Scientists patented their method, the method than it is now 50% faster, just cold, spend less time and chemicals. They hope to in the future when demand exceeds supply, to help overcome the shortage and high prices of platinum group metals problem.
Usually the catalyst used 50,000 miles tiffany bracelet in the car after the recall, and other waste in the furnace with the melt.
The new recycling method that metals immersed in nitric acid and hydrochloric acid, then with the bacteria reactor. Metal deposition in the cell wall, the cells can be collected for recycling.
Recovery process takes about 15 minutes, about 90% efficiency. Studies have shown that biological recovery of palladium recovered better than chemical methods. This method can even deal with the chemical method can not handle the printed circuit board.
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