Green multi-metal cooperation stabilization agent for fly ash and application method for green multi-metal cooperation stabilization agent

The invention belongs to the field of dangerous waste stabilizing treatment, relates to a method for treating incineration fly ash by mixing diethyl dithiocarbamate carbamate and ferrous sulfate (copperas) in a certain proportion as a stabilization agent, and provides a method for treating multiple kinds of heavy metal in incineration fly ash by mixing diethyl dithiocarbamate carbamate, phosphate and copperas in a certain proportion as an agent to solve the problems that in single use of an existing stabilization agent, many defects exists, for example, a chelating agent is high in use level, cost is high, and multiple kinds of metal are not likely to be fixed by single agents at the same time. According to the method, multiple kinds of heavy metal such as cadmium, lead, zinc and nickel in the incineration fly ash can be fixed at the same time, and therefore the leaching toxicity of the heavy metal is lowered, and the requirement of the Municipal Solid Waste Landfill Contamination Control Standard (GB16889-2008) is met. In addition, the method is low in cost, raw materials are easy to obtain, secondary pollution is avoided, and the treatment method is simple. The simple and feasible method for stabilizing treatment on household refuse incineration fly ash is provided, a great obstacle of restraining the cleanliness development of waste incineration enterprises is eliminated, great environment benefits can be achieved, and obvious economic benefits and good social benefits can be achieved.