In the public impression, every time the tailings treatment is strengthened, it is always after the serious tailings dam break accident. And the assault type of tailings treatment is unlikely to be effective for a long time. A large number of tailings are increasing with the continuous increase of mining. With the depletion of the mine, the tailings stored for years are stacked on the hillside of the river bank. Due to the lack of effective treatment methods at the technical level, they can only be exposed in an unsafe way. Continue to remain in nature.
The main message of this passage is that the leftover historical burden and new hidden dangers have greatly increased the pressure on tailings treatment.