Grinding wastewater will be generated during metal processing and grinding. This kind of wastewater contains a large amount of metal grinding fluid, cleaning fluid and other pollutants. It must be pretreated (demulsifier) first to remove the floating oil and demulsify, coagulate and air float the grinding waste liquid, so as to improve the biological treatment capacity of the wastewater, and then treated to make it meet the discharge standard.

We can provide waste water low-temperature heat pump evaporation and concentration solutions according to your needs.

The machining wastewater can be treated by evaporation and concentration. The waste water enters the low temperature vacuum evaporator, evaporates under the vacuum and low temperature conditions, and the steam condenses to form distilled water in the process of vacuumizing, which is collected in the clean water storage tank; The remaining trace waste shall be treated in the next step.

This method can greatly reduce or even remove the harmful chemicals and heavy metals contained in the waste liquid. The amount of wastewater from the evaporator can be reduced by more than 95%, and the distillate can be reused or further treated to meet the reclaimed water or discharge standard.

The heat pump evaporator uses electricity as the energy source. It is a very effective technology to evaporate concentrated wastewater at low temperature under vacuum negative pressure. It can handle all kinds of wastewater and liquid waste.

Advantages

1.The vacuum degree is about -95KPa, and the evaporation temperature is about 35-40℃;

2. Intelligent automatic control system, simple operation, convenient and efficient;

3. It occupies a small area and is almost unattended;

4. High concentration ratio of wastewater and high purity of evaporated water;

5. Using air energy heating technology, the technology is stable, safe, energy-saving and environmentally friendly;

6. Up to the sewage discharge regulations,almost 0 maintenance.

Process flow reference diagram

Technical specs

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