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Aircraft washing water
  • 2025-07-22

Aircraft washing water

Core pollution control objectives

Completely remove residual chloride/sulfate in the fuselage (concentration <5mg/L)

Eliminate magnesium and calcium scaling caused by hard water deposition (hardness ≤0.1dH)

High-precision reverse osmosis system configuration

Membrane separation unit

Seawater-grade composite membrane (desalination rate ≥99.8%)

Working pressure 5.5-7.0MPa (adaptive frequency conversion control)

Pretreatment module

Two-stage activated carbon adsorption (residual chlorine <0.01ppm)

20μm security filter intercepts particulate matter

Key performance parameters

Cleaning water quality assurance

Conductivity ≤10μS/cm (corresponding to TDS <5mg/L)

Silicon dioxide content <0.5ppm

System operation efficiency

Production Water volume 8-50m³/h (modular expansion design)

Chemical agent usage reduced by 40%

Aerospace exclusive design

Enhanced anti-corrosion performance

316L stainless steel pipe fittings (salt spray resistance > 2000h)

Epoxy coating of membrane shell (anti-corrosion grade C5-M)

Intelligent operation and maintenance system

Touch screen automatically records 120 sets of operating parameters

Early warning module monitors SDI value changes in real time

Implementation of benefit verification

Improved cleaning efficiency

Reduced water stains on the fuselage by 98%

Single cleaning cycle shortened by 35%

Full life cost optimization

Metal component corrosion rate reduced to 0.02mm/year

Membrane element service life > 5 years (flux attenuation < 8%)

Compliance certification

ISO 9001/14001 dual certification

Meets MIL-PRF-85772 military standard requirements


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