Nord stone

Water Treatment Skids – Modular, Automated, High-Performance Systems

Advanced Water Purification & Treatment Solutions for Industrial & Municipal Applications

Water Treatment Skid Systems

Introduction

Our Water Treatment Skids are engineered for robust, continuous operation in industrial, municipal, petrochemical, power, food & beverage, and oil & gas facilities.

Each skid integrates process engineering, mechanical design, instrumentation, controls, and automation to deliver fully tested, plug-and-play water purification modules. Designed as per ISO, ASME, AWWA, ANSI, API, NACE, ASTM, and application-specific requirements.

Comprehensive Water Treatment Solutions

From raw water pretreatment to advanced purification and wastewater treatment, our modular skids provide complete solutions for water quality management. Each system is custom-engineered to meet specific treatment objectives while ensuring operational efficiency and compliance with regulatory standards.

Key advantages include:

  • Modular design for easy installation and expansion
  • Fully automated operation with minimal manual intervention
  • High-quality materials for corrosion resistance and longevity
  • Integrated control systems with real-time monitoring
  • Compliance with international water treatment standards
  • Factory testing ensures guaranteed performance
  • Energy-efficient designs with optimized chemical usage

Our water treatment skids are designed to operate reliably in demanding industrial environments while maintaining optimal treatment efficiency and water quality.

Water Treatment Skid Packages

UF

Ultrafiltration (UF) Skid

Removal of turbidity, suspended solids, colloids, bacteria, viruses, and high-molecular-weight impurities.

  • • Hollow-fiber UF membranes
  • • Automatic backwashing & chemical enhanced backwash
  • • Air scouring system for membrane protection
Technical Expertise:

Membrane flux optimization, SDI control for RO plants, CIP chemical selection, Fouling prediction algorithms

RO

Reverse Osmosis (RO) Plant Skid

High-purity water production by removing dissolved salts, minerals, organics, and contaminants.

  • • Spiral-wound TFC RO membranes
  • • Energy recovery devices for low operating cost
  • • Antiscalant dosing, cartridge filtration, pH control
Technical Expertise:

Recovery optimization (20-85%), Osmotic pressure analysis, High salinity RO design, Multi-stage RO systems

DM

Demineralization (DM) Skid

Production of ion-free, low-conductivity water for power plants, boilers, critical process utilities.

  • • Cation, anion, and mixed-bed ion exchange vessels
  • • Automatic regeneration with acid & caustic dosing
  • • Corrosion-resistant rubber-lined vessels
Technical Expertise:

Resin selection optimization, Silica removal systems, Regeneration optimization, High-capacity DM design

MMF

Multimedia Filter (MMF) Skid

Primary filtration to remove turbidity, suspended solids, sand, silt, and organic matter.

  • • Multilayer media (anthracite, sand, garnet, gravel)
  • • Automatic backwash with air scour
  • • Inlet/outlet turbidity monitoring
Technical Expertise:

Media gradation engineering, Pressure drop optimization, Backwash sequencing analysis, Hydraulic loading design

ACF

Activated Carbon Filter (ACF) Skid

Removal of chlorine, color, odor, organics, VOCs, pesticides, and taste.

  • • High-iodine GAC media
  • • Dechlorination and TOC reduction
  • • Air-wash + water-backwash system
Technical Expertise:

Carbon adsorption isotherm modelling, CT optimization, Pre-RO organic reduction, Carbon attrition analysis

CF

Cartridge Filter Skid

Fine filtration (0.2–50 microns) to protect RO membranes, pumps, and critical equipment.

  • • Single or multi-core cartridge housings
  • • PP/PES/PTFE cartridges depending on application
  • • DP-based autoflush & replacement alarms
Technical Expertise:

Filter sizing based on fouling index, Micron rating validation via LRV, Pre-RO and polishing filtration optimization

SS

Softener Skid

Removal of calcium and magnesium hardness to protect boilers, heat exchangers & cooling systems.

  • • Ion-exchange resin-based hardness removal
  • • Automatic brine suction & regeneration
  • • Hardness monitoring systems
Technical Expertise:

Softening kinetics modelling, Resin life cycle prediction, Regeneration optimization for low salt consumption

CS

Chlorination Skid

Primary disinfection using chlorine gas or liquid chlorine.

  • • Chlorine gas vacuum regulators & ejectors
  • • Hypochlorite generation or dosing system
  • • Leak detection alarms & safety systems
Technical Expertise:

CT disinfection modelling, Chlorine decay rate analysis, Chlorine gas safety engineering (NFPA compliance)

HS

Hypochlorite Dosing Skid

Automatic dosing of sodium hypochlorite for disinfection, oxidation & biofouling control.

  • • Metering pumps with high accuracy
  • • UV-protected tanks to prevent decomposition
  • • Flow-paced or residual-based control
Technical Expertise:

Hypochlorite decomposition kinetics, pH optimization for disinfection, Chlorate formation prevention

PHS

pH Correction Skid

Neutralization or pH adjustment using acid/alkali dosing to meet process or discharge requirements.

  • • Acid/caustic-resistant materials (PP/PVDF/FRP)
  • • pH feedback control with dosing pumps
  • • Dual redundancy pH probes
Technical Expertise:

Neutralization curve modelling, PID tuning for stable pH control, Automated sequence control

MBR

MBR / Biological Treatment Skid

High-efficiency treatment of industrial & municipal wastewater.

  • • Submerged or external MBR modules
  • • Aeration blowers with DO control
  • • Biological reactors with MLSS monitoring
Technical Expertise:

Biological kinetics (Monod model), COD/BOD removal optimization, Membrane fouling prediction, Nitrification control

UO

UV / Ozone Disinfection Skid

Advanced disinfection for potable water, wastewater, industrial process water.

UV System Features:
  • • Low/medium-pressure UV lamps
  • • UV intensity sensors
  • • Quartz sleeve cleaning system
  • • Automatic lamp power modulation
Ozone System Features:
  • • Corona discharge ozone generator
  • • Ozone destruct unit
  • • ORP & ozone residual monitoring
  • • Mass transfer contactors
Technical Expertise:

UV dose modelling for pathogen inactivation, Ozone mass transfer & decay kinetics, AOP integration, Residual control

Key Features of Water Treatment Skids

✔

Advanced Filtration Technology

  • • Membrane-based separation (UF, RO, MBR)
  • • Multimedia and activated carbon filtration
  • • Fine cartridge filtration for protection
✔

Chemical Treatment Systems

  • • Ion exchange demineralization & softening
  • • Precise chemical dosing for pH control
  • • Disinfection systems (chlorine, hypochlorite, UV, ozone)
✔

Automation & Control

  • • PLC/SCADA based automation
  • • Automatic backwash and cleaning cycles
  • • Real-time monitoring of water quality parameters
✔

Corrosion-Resistant Construction

  • • SS316L, duplex stainless steel
  • • FRP, PP, PVC, and PVDF materials
  • • Rubber-lined carbon steel vessels
✔

Energy Efficiency

  • • Energy recovery devices for RO systems
  • • Optimized pumping systems
  • • Variable frequency drives for motors
✔

Modular & Scalable Design

  • • Plug-and-play installation
  • • Easy expansion capabilities
  • • Compact footprint for space constraints

Engineering & Design Capabilities

Process Design

  • • Water quality analysis & treatment selection
  • • Membrane system optimization
  • • Chemical dosing calculations
  • • Hydraulic & mass balance calculations

Mechanical Design

  • • ASME Section VIII pressure vessel design
  • • Material selection for corrosion resistance
  • • 3D modeling & piping design
  • • Structural analysis for skid mounting

Standards Compliance

  • • Water Quality: AWWA, ISO, NSF
  • • Mechanical: ASME, ANSI, API
  • • Materials: NACE, ASTM
  • • Safety: NFPA, OSHA, CE

Industry Applications

Power Plants
  • • Boiler feed water treatment
  • • Cooling water treatment
  • • Demineralized water production
Petrochemical & Refining
  • • Process water treatment
  • • Wastewater treatment
  • • Cooling tower blowdown treatment
Municipal Water
  • • Drinking water treatment
  • • Wastewater treatment plants
  • • Water recycling systems
Food & Beverage
  • • Process water purification
  • • CIP water treatment
  • • Bottled water production
Pharmaceutical
  • • Purified water systems
  • • WFI (Water for Injection)
  • • USP compliance systems
Oil & Gas
  • • Produced water treatment
  • • Injection water treatment
  • • Offshore water treatment

Quality Assurance & Testing

All water treatment skids undergo rigorous QA/QC procedures:

Performance Testing
  • • Water quality parameter verification
  • • Flow rate and pressure testing
  • • Membrane integrity testing
Material & Construction Testing
  • • Material certification (MTC 3.1/3.2)
  • • Pressure testing (hydro/pneumatic)
  • • Corrosion resistance validation
Factory Acceptance Testing
  • • Complete system functionality test
  • • Control system validation
  • • Safety interlock testing

Advanced Features & Capabilities

  • • Remote monitoring & SCADA integration
  • • Energy recovery systems for RO plants
  • • Automatic chemical dosing with feedback control
  • • Clean-in-Place (CIP) and sanitization systems
  • • Data logging and trend analysis
  • • Predictive maintenance monitoring
  • • Mobile app integration for remote control
  • • Redundant systems for critical applications

Why Choose NORDSTONE for Water Treatment Skids?

  • • Deep Process Expertise: Membrane science, ion exchange, biological treatment, disinfection systems
  • • End-to-End EPC: Complete Engineering, Procurement, Construction & Commissioning
  • • Global Standards Compliance: ISO, AWWA, ASME, ANSI, API, CE, NSF certification
  • • Factory Integration: Fully assembled, tested & ready for deployment
  • • Robust Design: Engineered for harsh industrial environments and continuous operation
  • • Smart Automation: PLC/SCADA control with real-time data monitoring and analytics
  • • Material Expertise: Corrosion-resistant materials for water treatment applications
  • • Technical Support: Commissioning, operator training, and after-sales service
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Ready to Discuss Your Water Treatment Skids Requirements?

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