High salt wastewater evaporator is an advanced evaporator, which is widely used at present.
- Evaporation of salt. When you buy a high salt wastewater evaporator, you need to know its salt production. Generally, it has two ways of salt extraction, one is centrifuge salt extraction, and the other is salt extraction with crystallizer. The water content of salt extraction of the former is very low, and the salt of the latter is separated out in the form of crystal, so the external water content is relatively low. When choosing, we should pay attention to choosing the appropriate way of salt production.
- When we choose this equipment, we need to choose the appropriate type. For salt evaporation, we give priority to the use of forced circulation evaporator. If the salt concentration is not too high, we can also choose the combination of front falling film evaporator and forced circulation evaporator. If it is other non salt evaporation, it is best to choose falling film evaporator.
- In the process of evaporation, the removal rate of COD. The COD in wastewater is mainly determined by the content of organic matter in wastewater. The organic matter contained in wastewater may be low boiling point or high boiling point. If it is low boiling point organic matter, it needs to enter the cooling and heating system with condensate during evaporation, In this way, the COD in the condensate can not be reduced.
When purchasing high salt wastewater evaporator, you need to pay attention to the above contents and focus on the removal of COD in the evaporation process. For high boiling organic matter, they can enter the waste liquid system during evaporation, so the content of condensate will be reduced.