High COD sludge, high COD saline wastewater, and high COD waste salt generated during the production processes in industries such as chemicals, papermaking, leather manufacturing, and textile dyeing and printing cannot be completely treated by traditional physical, chemical, and membrane methods.
The types of waste generated during the production process in the industry mainly include:
Waste salt containing a high amount of organic matter
(2) Halogen-free organic waste liquids, primarily hydrocarbons, containing C, H, O, and sometimes S.
(3) Halogenated organic waste liquids, which contain organic compounds such as carbon tetrachloride and chloroethylene.
(4) High-concentration saline organic waste liquid, containing high concentrations of inorganic salts or organic salts.
(5) Distillation Residue, Still Bottoms, etc.
（6）VOCS
2. Treatment methods for waste solid salt, waste liquids, and waste gases
Considering the characteristics of waste solid salt, liquid, and gas, our company's developed membrane-type wall waste liquid incineration boiler can carry out high-temperature oxidation of the organic matter in the waste, completely eliminating the presence of organic matter, and can also produce by-products such as steam and reusable inorganic salts (e.g., Na2CO3, Na2SO4, NaCl, Na2S). After incineration, the flue gas is treated for dust removal, denitrification, desulfurization, and de-whitening to meet emission standards.
3. Waste Incineration Boiler System Composition
This process system can completely oxidize organic pollutants in waste to produce: CO2↑, H2O↑, SO2↑, NOX↑ (main components of flue gas), which are then treated and emitted in compliance with standards as flue gas. Simultaneously, it generates energy (saturated and superheated steam) and inorganic salts (Na2CO3, Na2SO4, NaCL, Na2S, sodium pyrosulfate) among others.
Primary Equipment: Incineration Boiler
The main systems for waste solid salt incineration include: waste solid salt pretreatment system, waste solid salt incineration system, boiler thermal system, molten salt receiving system, and flue gas purification system.
The main systems for waste liquid incineration include: waste liquid pretreatment system, waste liquid incineration system, boiler thermal system, molten salt receiving system, and flue gas purification system.
