Preparation method and application of ultra-stable mineralizer for treating heavy metal pollution

The invention discloses a preparation method and application of an ultra-stable mineralizer for treating heavy metal pollution, which comprises the following steps: by taking distilled ammonia waste liquid generated in the process of developing and utilizing magnesium resources in a salt lake as a raw material, adding alkali and hydroxide or oxide of trivalent aluminum according to the component content of the distilled ammonia waste liquid and the principle of atom economic reaction; the method comprises the following steps: adding water according to a certain mass concentration, reacting for a specified time at a certain temperature and stirring rate, filtering, washing and drying the product obtained by the reaction to obtain a product, and then removing heavy metal ions in the waste liquid by using the product. The method for preparing the ultra-stable mineralizer is simple, the raw materials belong to waste utilization, the cost is low, no three wastes are generated, and the method is green and environme