1. Physical treatment: Physical treatment is to change the structure of solids through concentration or phase change? Make it into a form that is convenient for transportation, storage, utilization or disposal, including compaction, crushing, sorting, thickening, adsorption, and extraction And other methods.

2. Chemical treatment: Chemical treatment is the use of chemical methods to eliminate harmful components in solids, so as to achieve harmlessness or transform them into a form suitable for further treatment and disposal. Its purpose is to change the chemical properties of the treated material, thereby reducing its harmfulness. This is a commonly used pretreatment measure before the final disposal of dangerous ***, and its treatment equipment is conventional chemical equipment.

3. Biological treatment: Biological treatment is the use of microorganisms to decompose the degradable organic matter in solids, so as to achieve harmless or comprehensive utilization. Biological treatment methods include aerobic treatment, anaerobic treatment and facultative anaerobic treatment. Compared with chemical treatment methods, biological treatment is generally cheaper in terms of economy? It is widely used? But the treatment process takes a long time and the treatment efficiency is not stable enough.