Projects / Pharmaceutical water
USP purified water with double-pass osmosis and EDI for Qualipharm
We designed, supplied, installed and commissioned a high-purity system with double-pass reverse osmosis, electrodeionization (EDI) and UV disinfection that turns well water into purified water in accordance with the USP and WHO Technical Report 37.
- ClientQualipharm
- Year2022
- IndustryPharmaceutical
- ScopeTurnkey project

Online analyzers and PLCPurified water system
Project video
The Qualipharm project on video
Cristian Pinto, Sanitron’s projects director, walks through the installed system and explains how it works. Video in Spanish.

Well water turned into pharmaceutical-grade water
Qualipharm needed to generate purified water continuously, with demanding physicochemical and microbiological specifications, from well water and with certified sanitary materials.
- Conductivity below 1.3 µS/cmThe USP limit for purified water.
- Certified materialsSanitary components with material, weld and welder certification.
- Continuous productionDouble-pass reverse osmosis and EDI working in series.
From the well to purified watercapacity of each stage, in m³/day
Double-pass reverse osmosis removes most of the salts and EDI continuously polishes the permeate. The bars are proportional to the capacity of each stage.
- 3 membranesDow Filmtec in double pass
- 97 %EDI recovery
- 75 psimaximum EDI pressure
- < 1.3 µS/cmpurified water conductivity
Treatment train: from the well to purified water
Six stages with certified sanitary instrumentation: pretreatment, a double membrane barrier and final disinfection.
- Sediment filtrationFiberglass tank with aluminosilicate media and automatic backwash valve.Larger than 5 µm
- MicrofiltrationGradient polypropylene filter that protects the membrane stages.From 25 to 1 µm
- Chemical dosingGrundfos dosing pump with injector and 110 L tank, with a level sensor for the chemical alarm.ORP and pH at the inlet
- Double-pass reverse osmosisThree membranes, high-pressure pump and stainless steel skid, with sanitary bypass valve and automatic flushing.8.7 m³/day
- Electrodeionization (EDI)Sanitary module with material certification, 97% recovery and 75 psi maximum pressure.8.2 m³/day
- Final UV disinfectionSanitary UV with clamp connections, digital ballast with alarms and online intensity sensor.Final disinfection



Automation and control
- PLC with 4.3″ HMI touch screen connected to real-time sensors.
- Rosemount Emerson analyzers for ORP and pH on the inlet line.
- Online sanitary conductivity and pH in the product water, with level, pressure and flow alarms.
- Material certification
- Certified welding
- 316L stainless steel
- Clamp connections
Turnkey, with material traceability
Sanitron designed, supplied, installed and commissioned the complete system, with material, weld and welder certifications, and a one-year warranty.
What Sanitron did
- Detailed engineeringDesign of the complete pharmaceutical water purification train.
- SupplyNorth American equipment, Dow Filmtec membranes, EDI modules and certified sanitary components.
- Installation316L stainless steel and PVC piping, and control wiring at the client’s plant.
- CommissioningHydrostatic tests, calibration, stabilization and a one-year warranty.
Results
- Below 1.3 µS/cmStable, certified pharmaceutical-grade purified water.
- Salts and ions removedDouble-pass reverse osmosis and EDI in series.
- Full traceabilitySanitary instrumentation with weld and material certifications.
Does your laboratory need high-purity purified water?
We design systems with double-pass reverse osmosis, EDI and certified sanitary instrumentation, with automation and local technical support.
Contact us
Office in EcuadorDe los Eucaliptos E8-70 y calle E9, Quito 170307
Phone+593 99 871 1330
+593 2 280 8126
Emailinfo@sanitronec.com
Office hoursMonday to Friday
9:00 a.m.–12:00 p.m. and 1:00–6:00 p.m.
Office in the United States9995 NW 9th St. Circle, Suite 3, Miami, FL 33172
+1 786 972 2008
