Zero discharge of high salt wastewater

Typical treatment process: pre-treatment+membrane concentration+evaporation

Pretreatment: mainly including high-density tanks, V-shaped filters, etc;

Membrane treatment: mainly using ultrafiltration, nanofiltration, reverse osmosis, and softening membranes;

Evaporation: including multi effect evaporation, MVR, etc

The TDS content in the incoming water is relatively high, and the main process route is to concentrate/separate various ions in the water, with the final product being qualified production water and industrial salt.

Pretreatment process

High density sedimentation tank

• adjust pH;
• Removing alkalinity and hardness ions by adding chemicals；
• Dosing to remove suspended solids

V filter

• Filter to remove suspended solids；
• Automatic operation, adaptable to fluctuations in water quality and quantity；
• Large treatment water.

Membrane treatment process

ultrafiltration

• Remove particles, colloids, bacteria, heat sources, and organic matter from water；
• Automatic operation, adaptable to fluctuations in water quality and quantity；
• For surface water, well water, and industrial park water treatment, ultrafiltration is an essential guarantee for subsequent nanofiltration reverse osmosis treatment process.

Nanofiltration/reverse osmosis

• Remove/separate various ions from water;
• Concentrate pollutants, reduce concentrated water treatment capacity, and reduce equipment investment;
• The water quality is reliable and can meet various discharge standards.

TMF membrane

• Used for chemical softening processes;
• Compared to sedimentation tanks, it has better solid-liquid separation effect;
• Salt and acid resistant, reliable operation.