High-salinity wastewater, characterized by elevated salt content and hardness, presents significant treatment challenges as conventional chemical precipitation methods fail to achieve stable results due to its high TDS levels and buoyancy effects, which significantly retard the settling velocity of fine particles. Keysino's pretreatment system employs high-solid-load alkali-resistant membrane technology based on precise screening mechanisms, integrating softening-chemical dosing with ultrafiltration in a unified skid-mounted assembly. This engineered solution enables simultaneous removal of calcium, magnesium, and silica impurities under high-salinity/high-hardness conditions, achieving <5 ppm residual hardness through multistage ion-selectivity control. The compact system features a 60% reduced footprint compared to conventional setups, with high-precision softening (98.5% efficiency) and multifunctional integration, establishing a new benchmark for advanced pretreatment in hypersaline industrial wastewater management.