According to the "China Activated Carbon Regenerating Market Research and Investment Forecast Report (2019 Edition)", showing the activated carbon on the market has various shapes such as powdered activated carbon, granular activated carbon and pellet activated carbon at present, which are widely used in the pharmaceutical industry, decolorization in the food industry, refining in the petrochemical industry etc. Also it was used in the field of environmental protection for the water treatment, air purification, flue gas desulphurization, and in the military and in people’s life. For example, powdered activated carbon is widely used in the production of medicine, glucose and monosodium glutamate, and the granular activated carbon are widely used as an adsorbent, a catalyst and a catalyst carrier in environmental protection. At present, China is the largest producer of activated carbon in the world with an annual output of more than 500,000 tons, and increasing at a rate of more than 10% each year.
Due to the defects of the existing waste activated carbon regeneration technology, in recent years, the recycling of waste activated carbon has not really achieved widespread industrial application; At present, there are few enterprises operating and providing waste activated carbon regeneration services in China, and they can not be large-scale used in waste activated carbon which is adsorbing different pollutants. The main reasons are as follows: 1. The regeneration amount and regeneration effect of the equipment cannot meet the requirements of the enterprise. Waste activated carbon contains different pollutants, and the same equipment can not effectively realize the regeneration of waste activated carbon adsorbing different types of pollutants; 2. The cost of regeneration is high. For some relatively efficient regeneration methods, the corresponding cost is relatively high, which can not increase the profit of the enterprise, further more it will bear the risk of instability of regeneration effect and secondary pollution when regenerating.
