Full-Spectrum Treatment Engineering
Advanced Water Treatment
Solutions
We engineer and implement every major water treatment technology currently available, from basic residential filtration to advanced industrial contaminant removal. Every solution begins with comprehensive water testing and is designed for your specific water chemistry and operational requirements.
CT DEEP & EPA Compliant
PFAS Removal Specialists
Radiological Treatment
Industrial Process Water
Aquatek Lab Partner
Our Treatment Philosophy
We never apply a one size fits all solution. Every system begins with comprehensive water testing and site evaluation, including laboratory analysis through our partnership with Aquatek Laboratory, and collaboration with CT licensed professional engineers and architects as needed. We then design the most effective, cost efficient, and sustainable treatment train for your specific water chemistry and usage requirements, whether it is a simple residential softener or a multi stage industrial process water system.
Laboratory Partner
Aquatek Laboratory
Regulatory Standard
CT DEEP & EPA
Approach
Water-Chemistry Driven
Complete Technology Portfolio
Why Proper Booster System Design Matters
99%+ Contaminant Rejection
Reverse Osmosis (RO) & Nanofiltration
High-rejection membrane systems for removal of dissolved solids, PFAS, heavy metals, nitrates, and other contaminants. We design both point-of-use and whole-house/commercial systems.
System Details
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Point-of-use (under-sink) residential systems
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Whole-house / point-of-entry RO systems
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Commercial and industrial scale systems
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Nanofiltration for selective ion removal
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System design includes pre-treatment & reject management
Target Contaminants / Applications
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PFAS removal
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TDS reduction
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Heavy metals
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Nitrates
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Industrial process water
Residential to Industrial Scale
Ion Exchange & Water Softening
Water softening, demineralization, and selective contaminant removal (nitrates, arsenic, uranium, radium). We use high-capacity resins and design for optimal regeneration efficiency.
System Details
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Residential water softeners (cation exchange)
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Commercial dealkalizers & deionizers
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Selective ion exchange for PFAS, nitrates, arsenic
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Mixed-bed polishing for ultra-pure water
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Regeneration brine management
Target Contaminants / Applications
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Hardness removal
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Iron & manganese
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Nitrates & arsenic
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Radiologicals
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High-purity water
Whole-House & Commercial Systems
Granular Activated Carbon (GAC)
High-quality GAC systems for removal of chlorine, chloramines, VOCs, PFAS, pesticides, and taste/odor compounds. We specify catalytic carbon where appropriate.
System Details
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Residential whole-house GAC filters
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Commercial and industrial carbon contactors
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Catalytic carbon for chloramine & Hâ‚‚S removal
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PFAS adsorption (GAC & PFAS-specific media)
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Spent carbon changeout and disposal programs
Target Contaminants / Applications
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Chlorine/chloramines
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VOCs & pesticides
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PFAS adsorption
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Taste & odor
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Pharmaceutical removal
Staining • Taste • Clogging Prevention
Iron & Manganese Remediation
Greensand, catalytic media, aeration + filtration, and chemical oxidation systems. We address both soluble (ferrous) and particulate (ferric) forms with proper pretreatment and backwash design.
System Details
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Greensand & Birm filter systems
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Catalytic oxidation media (Filox, Pyrolox)
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Aeration + filtration systems
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Chemical oxidation (chlorine, potassium permanganate)
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Combined iron/manganese/hydrogen sulfide treatment
Target Contaminants / Applications
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Iron staining
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Manganese removal
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Black water
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Hydrogen sulfide
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Metallic taste
CT DEEP & EPA Compliant Designs
Radiological Contaminant Removal
Specialized treatment for uranium, radium, radon, and gross alpha/beta particles. We combine ion exchange, RO, and aeration technologies with proper waste handling and regulatory compliance.
System Details
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Uranium removal via ion exchange & RO
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Radium removal via cation exchange & coprecipitation
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Radon removal via aeration or GAC
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Gross alpha/beta monitoring and treatment
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Waste management and disposal protocols
Target Contaminants / Applications
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Uranium
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Radium-226/228
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Radon
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Gross alpha
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Gross beta
Chemical-Free Primary Disinfection
UV Disinfection & Advanced Oxidation
Ultraviolet disinfection systems for bacteria, virus, and protozoa inactivation. Advanced oxidation processes (AOP) combining UV + hydrogen peroxide for emerging contaminant destruction.
System Details
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Residential & commercial UV systems
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NSF/ANSI 55 Class A & B validated systems
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UV + Hâ‚‚Oâ‚‚ Advanced Oxidation Process (AOP)
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Ozone treatment systems
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Chlorine & chloramination systems
Target Contaminants / Applications
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Bacterial disinfection
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Virus inactivation
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Giardia/Crypto
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PFAS
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Taste & odor (AOP)
Residential to Industrial Scale
pH Neutralization & Chemical Feed Systems
Engineered pH correction and precision chemical dosing for corrosion control, scale prevention, disinfection, and process water conditioning. We design systems from single feed points to fully automated multi-chemical trains.
System Details
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Acid and caustic neutralization systems
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Calcite and soda ash pH correction
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Metering and dosing pump skids
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Chlorination and chemical disinfection feed
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Corrosion and scale inhibitor injection
Target Contaminants / Applications
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pH correction
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Corrosion control
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Scale prevention
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Chemical dosing
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Process conditioning
Particulate to Colloidal Removal
Multi-Stage Filtration Systems
Complete sediment, turbidity, and particulate removal from coarse to sub-micron scales. Designed as standalone systems or as pre-treatment for membrane and advanced treatment systems.
System Details
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Multi-media pressure filters
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Bag and cartridge filter systems
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Automatic backwash filters
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Micro & ultrafiltration membrane systems
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Sand and aggregate media filtration
Target Contaminants / Applications
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Turbidity removal
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Sediment control
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Pre-treatment
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Cyst removal
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Virus removal
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Bacterial disinfection
Additional Capabilities
More Technologies & Specialty Applications
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pH Adjustment & Chemical Feed Systems
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Legionella Control & Point-of-Entry Disinfection
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Scaling & Corrosion Control
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Fluoride Removal (Activated Alumina)
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Arsenic Removal Systems
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High-Purity Water (DI, EDI)
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Boiler Feed & Steam System Pre-treatment
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Cooling Tower Water Management
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Wastewater Pretreatment & Reuse
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Stormwater Treatment Systems
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Potable Water Reuse (Direct & Indirect)
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Produced Water Treatment
PFAS & Emerging Contaminants
Per- and polyfluoroalkyl substances (PFAS), including PFOA and PFOS, are a critical water quality concern in Connecticut and throughout the Northeast. Duncan Water Systems designs and implements EPA-compliant PFAS treatment systems for residential, commercial, and municipal applications.
Granular Activated Carbon (GAC)
Cost-effective for high-flow applications
Reverse Osmosis (RO)
99%+ rejection rates for most PFAS compounds
Ion Exchange (IX)
Single-use resins for long service intervals
Nanofiltration
Selective membrane separation
Laboratory Partnership: Aquatek
All water quality assessments are conducted in partnership with Aquatek Laboratory, providing certified analytical services for drinking water, wastewater, and industrial process water. Analytical data drives every treatment system design.