Incineration is a method of placing garbage in a high-temperature furnace to fully oxidize the combustible components in it, and the heat generated is used to generate electricity and heat. The waste-to-energy system jointly developed by Westinghouse and O'Connor has been successful. The system's incinerator in the combustion of garbage can be up to 7% humidity into dry solid for incineration, incineration efficiency of more than 95%, at the same time, the high temperature of the incinerator surface can be converted into steam heat, can be used for heating, air-conditioning equipment and steam turbine power generation, etc., the United States part of the incineration plant's main technical indicators are listed in Table 1.
China's Shijiazhuang City, the construction of an incineration station, the Shenyang Municipality Environmental Science Research Institute introduced Japan's waste incineration device for hospitals and other units of special waste for harmless treatment, incineration process produces residual ash of about 5% of the weight of the biological waste before incineration, generally high-quality phosphorus fertilizer. In recent years China's waste incineration to generate renewable energy technology is increasingly given attention.
The advantages of incineration treatment are good reduction effect (incineration residue volume reduction of more than 90%, weight reduction of more than 80%), treatment thoroughly. However, according to U.S. reports incineration plants are extremely expensive to build and produce. In most cases, the value of the electricity generated by the equipment is much lower than the expected sales leaving local governments with huge financial losses. Incineration is highly toxic due to the presence of certain metals in the waste, creating secondary environmental hazards. Incineration requires that the calorific value of garbage is greater than 3.35MJ/kg, otherwise, must be added to the combustion agent, which will make the operating costs increase to the point that the average city can not afford.