Brief introduction of high salt wastewater evaporator

The high-salt wastewater evaporator is aimed at the characteristics of high-salt and high-concentration wastewater in the chemical industry or food industry. Based on the principle of evaporation, concentration and crystallization, it uses multi-effect, MVR, and forced circulation evaporation to concentrate and crystallize organic wastewater to separate the salt in the concentrated solution. After that, the crystalline salt is recovered by a salt collecting device. After the condensate is treated, zero discharge can be achieved.

Characteristics of high-salt wastewater evaporator

High-salt wastewater refers to wastewater with a total salt content of at least 1%, which mainly comes from chemical plants and the collection and processing of oil and natural gas. This wastewater contains a variety of substances (including salt, oil, organic heavy metals and radioactive substances). The chemical composition is complex and contains a lot of organic matter, including organic solvents, organic acids, esters, ketones, phenols, etc., and high salt content, such as sodium chloride, ammonium chloride, ammonium sulfate, sodium sulfate or A variety of mixed salts, etc., are difficult to directly treat with biochemical methods, and the physical and chemical treatment process is more complicated, and the treatment cost is high. It is recognized by the wastewater treatment industry as a highly difficult wastewater treatment. The discharge of high-salt wastewater has a huge impact on the environment, so it must be removed first Only pollutants in wastewater can be discharged.

High-salt wastewater evaporator process

Multi-effect evaporation (or MVR evaporation) + crystallization system is generally used. The generated distilled water is directly recycled or discharged in compliance with the standard; the desalinated waste can be further converted into dry crystals for recycling or further treatment, so as to achieve zero discharge.