The incineration of domestic waste, water treatment sludge and hazardous waste will produce a large amount of fly ash (accounting for 3% to 5% of the total amount of incinerated waste). Fly ash contains a large amount of toxic heavy metals, as well as highly toxic organic matter such as dioxins. Under certain conditions, these heavy metals and dioxins in fly ash will leach out and pollute water and soil, causing serious impact on the environment and people's lives.

The incineration of domestic waste, water treatment sludge and hazardous waste will produce a large amount of fly ash (accounting for 3% to 5% of the total amount of incinerated waste). Fly ash contains a large amount of toxic heavy metals, as well as highly toxic organic matter such as dioxins. Under certain conditions, these heavy metals and dioxins in fly ash will leach out and pollute water and soil, causing serious impact on the environment and people's lives.

Sludge is mostly organic and inorganic matter precipitated from urban domestic sewage and industrial chemical sewage plants. Since it contains odorous gas pathogens, organic substances and heavy metals, traditional composting and sanitary landfill technologies can no longer meet today's sludge disposal requirements. . The incineration method has become one of the main directions for current sludge disposal due to its significant advantages such as fast speed, small footprint, short storage time, environmental protection standards and no secondary pollution. Due to the high moisture content of sludge, the heat energy required for incineration is high. It is uneconomical to directly incinerate the general sludge with a moisture content of 75~85%. Ultra-high pressure deep dehydration is first used to reduce the moisture content to 50~55%, and then The waste heat of the steam/incineration flue gas produced by the system is used to dry and dehydrate the sludge. The moisture content of the sludge is reduced to 20~25% and then enters the incinerator for incineration, which can greatly reduce fuel consumption during operation.

The company's existing waste salt resource disposal technology can be used to dispose of liquid high-salt waste and solid high-salt hazardous waste. According to the different characteristics of high-salt hazardous waste, the optimal treatment process is selected to reduce the operating cost in the waste salt resource process and ensure the continuous, stable and standard operation of the system.