• 2025-07-22

Removes hardness and ions from water

Membrane softening mechanism:

Selective interception of divalent ions (Ca²⁺/Mg²⁺ removal rate > 92%)

Retention of beneficial monovalent ions (Na⁺/K⁺ permeability > 85%)

Key water inlet restrictions:

Residual chlorine: <0.1ppm (prevent membrane oxidation)

Heavy metals: Fe/Mn total ≤0.3mg/L

SDI value: ≤5 (turbidity pre-control)

Technical advantages of nanofiltration softening system

Multi-scenario adaptability:

Municipal pipe network water: hardness reduced to 60-80mg/L (no sodium residue)

Water for food processing: sulfate removal rate ≥99% (compliant with FDA 21 CFR 173.110)

Radioactive contaminated water: uranium/radium separation coefficient> 98% (concentrated waste reduction 40%)

Energy saving and economic efficiency:

Operating pressure: 0.7-1.2MPa (only 30% of RO system)

Water recovery rate: 85% (1.8 times of traditional water softener)

Energy consumption per ton of water: 0.25-0.4kWh (no regeneration salt consumption)

Key process innovations

► Anti-fouling membrane technology

Positively charged polyamide membrane (Zeta potential +8mV)

Scale-inhibiting self-cleaning flow channel (blocking cycle extended by 3 times)

► Dynamic water quality response system

Variable frequency water supply module (adapt to TDS fluctuations ±40%)

Online hardness monitoring (accuracy ±2mg/L CaCO₃）

Industry application evidence

Food and beverage field:

Concentrated juice production: Stable hardness control 75±5mg/L (prevent protein flocculation)

Fine coffee extraction: Sulfate <20mg/L (increase the precipitation rate of flavor substances)

Municipal water transformation:

Replacement of salt-based water softener: Annual salt consumption reduction of 36 tons/1,000 households

Radioactive material removal: Uranium content <1μg/L (EPA 822 standard)

Special industrial applications:

Car wash circulating water: Zero chemical softening (paint corrosion rate reduced by 70%)

Printing and dyeing wastewater reuse: Chroma removal rate >95% (taking into account hardness adjustment)

Full life cycle value

Operation reliability:

Membrane life: >60 months (municipal water source working conditions)

Intelligent early warning system: Real-time feedback of scaling tendency index

Environmental benefits:

No concentrated brine discharge (traditional water softener discharges 12 tons of salt residue per set per year)

Carbon footprint reduced by 62% (compared with ion exchange process)