NOVELTY - Processing hazardous waste, comprises: (i) collecting fly ash, chromium slag, electroplating sludge; (ii) adding a first additive to the ingredients, mixing uniformly, (iii) introducing the ingredients into a pelletizing device, and adding a second additive, mixing uniformly and pelletizing, (iv) and passing pellets having particle size greater than 5 mm into a secondary pelletizing equipment and adding third additives for secondary pelletizing, coating pellet surface with additives; and (v) roasting or sintering pellets in a cement kiln equipment.    USE - The method is useful for processing hazardous waste (claimed).    ADVANTAGE - The method allows decomposition of organic matter and immobilization of heavy metal, does not produce residual ash, is environmental friendly; saves energy; does not produce waste heat during combustion fuel; conserves fuel; and reduces carbon dioxide produced during combustion; and reduces the greenhouse effect.    DETAILED DESCRIPTION - Processing hazardous waste, comprises: (i) collecting fly ash, chromium slag, electroplating sludge, in the respective mass ratio of more than 0% of a material; (ii) adding a first additive to the ingredients, mixing uniformly, where the first additive is mixture of 70-85 mass% coal powder or carbon black and 15-30 mass% quicklime composition, in which the proportion of total additive material is 15-20 mass%, performing a drying process to make the material water evaporate to less than 7% after adding first additive, in which particle size of the material is too thick, grinding such that the particle size is reduced to less than 200 meshes and the material quality is more than 70 mass%, (iii) introducing the ingredients into a pelletizing device, and adding a second additive, mixing uniformly and pelletizing, where the second additive is an adhesive composition comprising 0.5-2 pts. wt. a first component, more than 0-2 pts. wt. iron oxide red, where the first component comprises 3-5 pts. wt. polyacrylamide, 7-10 pts. wt. calcium sulfate and 0-10 pts. wt. sodium carbonate, and second additive constitutes 1-5 mass% of the total ingredients, continuing pelletizing to obtain sieved pellets, having particle size of greater than 5 mm for secondary pelletizing, and returning pellets which have particle size of less than 5 mm to a pelletizing equipment and continuing pelletizing, (iv) and passing pellets having particle size greater than 5 mm into a secondary pelletizing equipment and adding third additives, for secondary pelletizing, coating the pellet surface with additives; and (v) roasting or sintering the pellets obtained after secondary pelletizing in the cement kiln equipment.