Denitration | incinerator need to do waste gas treatment?


Release time:

2024-05-13

With the development of industrialization, incinerators are widely used in many industries, which mainly produce various types of waste, including hazardous waste, domestic waste, medical waste and other industrial waste. The use of incinerators can deal with domestic waste in a timely manner, reduce waste accumulation and recover energy. For medical waste generated by medical care and hospitals, it needs to be safely disposed of by incineration, which requires the use of incinerators. However, the incineration process may dilute nitrogen oxides NOx, sulfur dioxide SO2, particulate matter, hydrogen chloride (HCl), heavy metals and other harmful substances, but also lead to water pollution and heavy metals exceed the standard, causing pollution to the soil, the incinerator operation process, there may be noise, affecting the surrounding environment.

In order to control NOx emissions in the tail gas, NH₃ or urea ₃ is used as a reducing substance. Under a certain temperature and catalysis, NH₃ takes effect and reduces NOx to N₂ or H₂O. Whether the incinerator needs SCR denitrification should be decided according to the specific situation and environmental protection requirements.

With the improvement of environmental awareness and the development of technology, in order to reduce the pollution caused by incinerators, many countries and regions have formulated strict emission standards and management regulations, and the design and operation of incinerators also need to ensure environmental protection and public health. The design and operation of incinerators are also constantly optimizing, improving and reducing pollutant emissions. In some waste incineration power plants, SCR denitrification technology is adopted for waste gas treatment in order to meet more stringent emission requirements, effectively reduce the content of NOx in flue gas, meet more stringent emission standards and improve environmental quality. SCR denitrification is an effective solution that combines chemical reduction and catalytic technologies to achieve efficient and environmentally friendly gas purification. With the improvement of environmental protection requirements, the importance of this technology in industrial applications is increasing.