Products
Desalination (Reverse Osmosis)
Reduce source water salinity to crop-safe levels with reverse osmosis
Farmnet designs and supplies reverse osmosis desalination systems for agricultural irrigation — reducing dissolved salt content from high-EC source water to 0.1–0.5 mS/cm permeate. Scalable from small operations to large commercial farms, with full integration into Farmnet irrigation and fertigation infrastructure.
our core strengths
Proven at Scale, Built for Performance
Farmnet manages the variables that determine crop consistency and operational efficiency. Systems are deployed across greenhouse, open-field, and indoor production environments, providing real-time control of temperature, humidity, CO₂, water delivery, and nutrient dosing.
Operating at national scale within the world's largest agricultural economy. Farmnet systems support dense networks of greenhouse and open-field operations across the highest-intensity production regions.
End-to-end production capability. Controllers, fertigation units, and system components are designed, produced, and validated within Farmnet's dedicated industrial facilities.
More than a decade of continuous development in agricultural control systems, refined through multiple technology generations and operational requirements.
Multidisciplinary engineering organisation focused on agricultural automation, control architecture, hardware design, and software systems.
Systems operating across diverse climates and production models—from arid environments to advanced controlled-environment agriculture.
Thousands of systems in continuous 24/7 operation, generating long-term performance data that informs system reliability and design.
Technical Specifications
- Technology
- Reverse osmosis (semi-permeable membrane)
- Salt rejection
- 95–99% of dissolved salts
- Permeate EC
- 0.1–0.5 mS/cm (source-dependent)
- Flow capacity
- 5–200 m³/h (system-dependent)
- Pre-treatment
- Filtration + anti-scalant dosing (included in design)
- Monitoring
- Permeate EC, pressure, flow — via Farmnet Platform
- Design basis
- Full source water analysis: EC, ionic composition, SDI
Key Features
Enables crop production in saline regions
Reduces source water EC from 3–15 mS/cm to 0.1–0.5 mS/cm — opening high-salinity groundwater and seawater sources for agricultural irrigation.
Blending for target EC
RO permeate is typically blended with source water to reach the target irrigation EC — maximising production capacity while achieving water quality targets.
Full pre-treatment design
RO membranes require pre-treated feed water. Farmnet designs the complete pre-treatment train (filtration, anti-scalant) as part of the RO system.
Platform monitoring
Permeate EC, feed pressure, flow, and membrane performance indicators monitored in real time via the Farmnet Platform.
Ecosystem
Works Together With
Purification & Filtration
Pre-filtration protects RO membranes from suspended solids and fouling.
Learn MoreFertigation Systems
RO permeate enters FISMART at near-zero EC for accurate nutrient formulation from clean baseline.
Learn MoreFarmnet Platform
Real-time membrane performance monitoring, EC tracking, and maintenance scheduling.
Learn MoreApplications
Where It's Used
High-salinity groundwater regions
Agricultural operations where local groundwater EC exceeds crop tolerance limits.
Coastal and arid zone farming
Greenhouse and open field production in coastal areas with brackish groundwater or limited freshwater access.
Next Step
Turn difficult water into irrigation-quality water.
Tell us your source water EC, ionic composition, and flow requirement. Our engineering team will design the right RO system.