（1） Application scenarios
1. Treatment of oily wastewater (COD ≤ 50000mg/L)
2. Desalination of high salt wastewater (TDS ≤ 150000mg/L)
3. Concentration and purification of chemical materials
4. Scale inhibition of circulating water system

（2） Membrane technology solution
Oil containing wastewater: cross flow ultrafiltration+reverse osmosis
High salt wastewater: STRO (special reverse osmosis)+electrodialysis
Material separation: Roll up nanofiltration membrane (molecular weight cutoff of 200-1000Da)

（3） Technical advantages
Oil recovery rate ≥ 99%
Salt recovery rate ≥ 90%
The chemical cleaning cycle has been extended to 120 days