Copper wastewater contains sulfuric acid and copper ion. The wastewater into the IVECDEST low temperature vacuum distillation system and finally extracts more than 90% clear distillate. The remaining 5% ~ 10% high salt mother liquor into VESALT scraper low temperature vacuum drying crystallization system, finally obtains dry solid crystal salt with moisture content ≤15%. The clear and transparent distillate can be reused as water or treated to discharge standards. The water yield can reach more than 99%. The water quality is clear and transparent, and the distillate can be reused as middle water or meet the discharge standard.

Leachate wastewater contains with high salt and high organic. There are two main treatment ways, 1: small volume enters IVECDEST cryogenic vacuum evaporator, extract more than 95% pure distilled liquid into the biochemical treatment and remaining trace of waste for further treatment. 2: large volume treated by MVR first or after multi-effect evaporation, produce the high concentrated mother liquor into VESALT scraper vacuum drying crystallization system to remove the inorganic salt, heavy metal and COD. Eventually get dry solid crystal salt with moisture content of 15% or less. Extract the limpid transparent distillate that can be used as water reuse or processing to achieve discharge standard.

Electroplating wastewater contains heavy metals, COD and salt. There are two main treatment ways. 1: Low concentration wastewater into IVECDEST vacuum evaporator and extract more than 95% pure distilled liquid. The remaining trace concentrate as waste treatment. 2: high concentration waste liquid can enter VESALT scraper vacuum drying crystallization system to remove inorganic salt, heavy metal and COD, and eventually get dry solid crystal salt with moisture content of 15% or less. The clear and transparent distillate can be reused as water or treated to discharge standards.

Chemical wastewater mainly contains organic matter and salt. Wastewater goes into the IVECDEST low-temperature vacuum distillation system, finally extract more than 90% pure distilled water and 5% ~ 10% residual concentrated liquid. And the concentrated liquid goes into the low temperature vacuum drying system and eventually get dry solid crystal salt with moisture content of 15% or less. The water vapor condenses to form clear and transparent distillate to be reused or meet the discharge standard.

Coal chemical wastewater volume is large. It can first go through the MVR or multi-effect evaporation and produce the high concentrated mother liquid into VESALT scrape crystallization system for vacuum low temperature evaporation drying, which can greatly reduce, eliminate waste liquid containing inorganic salt, heavy metal and COD and eventually get dry solid crystal salt with moisture content of 15% or less. The water vapor condenses to form clear and transparent distillate to be reused or meet the discharge standard.

RO concentrated mother liquor mainly contains salt and COD with salt concentration about 3% ~ 8%. There are two main treatment ways: 1: low concentration of small volume into IVECDEST vacuum evaporator to extract more than 90% pure distilled liquid and the remaining trace concentrate as waste treatment. 2: The high concentration of mother liquor can enter the VESALT scraper low temperature vacuum drying crystallization system to remove the inorganic salts, heavy metals and COD contained in the waste liquid, and finally obtain dry solid crystal salt with moisture content ≤15%. The clear and transparent distillate can be reused as water or treated to discharge standards.

High salt waste water into the VESALT scraper crystallization system under the condition of vacuum low temperature evaporation drying, can greatly reduce and remove inorganic salt, heavy metal and COD, and eventually get dry solid crystal salt with moisture content of 15% or less. The clear and transparent distillate can be reused as water or treated to discharge standards.

Pickling wastewater usually needs to be neutralized and pretreated. The PH of the wastewater is adjusted to 6 ~ 9. Then it enters the VESALT scraper low-temperature vacuum drying crystallizer to evaporate and dry under vacuum low-temperature conditions, which can greatly reduce and remove the inorganic salts, heavy metals and COD contained in the waste liquid, and finally obtain dry solid crystals with moisture content of solid crystal salt can reach <15%. The clear and transparent distillate can be reused as water or treated to discharge standards. The evaporation rate of the equipment can reach more than 98%, the water quality is clear and transparent, and the acid washing wastewater is zero discharged.

The main components of MVR/ multi-effect concentrated liquid are high organic matter and salt. After being evaporated and dried under vacuum low temperature conditions, it can greatly reduce and remove the inorganic salts, heavy metals and COD, and finally obtain dry solid crystal salt with moisture content ≤15%. The water vapor condenses to form clear and transparent distillate to be reused or meet the discharge standard.

Pharmaceutical/intermediate wastewater is in large amount. It first can go through the MVR or multi-effect evaporation and then the high concentrated mother liquid into VESALT scraping drying crystallization system. Under the vacuum low temperature conditions of evaporation and drying, it can greatly reduce and remove the inorganic salts, heavy metals and COD in waste liquid. And finally obtain dry solid crystal salt with moisture content ≤15%. The water vapor condenses to form clear and transparent distillate to be reused or meet the discharge standard.