Laboratory Deionized Water Purifier | 15L/h RO & DI Water System Simple-Q15

Engineered for academic, biological, and analytical testing facilities consuming approximately 100 liters per day, this compact benchtop water purification system converts municipal tap water directly into Grade 3 pure water and high-purity deionized water. Designed as an energy-efficient alternative to replace traditional electric water distillers, the unit delivers an hourly output of 15 liters at 25°C and an instantaneous dispense flow of up to 2.0 liters per minute when connected to a pressurized storage reservoir.

Five-Stage Cascade Filtration Architecture The purification process employs a sequential PF+AC+RO+DI process train:

• A sediment pre-filtration column (BCS-PP) removes suspended rust, dirt, and colloidal particles.

• A two-stage carbon treatment pairing a granular activated carbon column (BCS-AC1) with an extruded carbon block column (BCS-AC2) adsorbs free chlorine, organic contaminants, and microorganisms.

• A high-rejection 100 GPD reverse osmosis membrane removes up to 99% of dissolved inorganic ions and organic molecules above 200 Daltons.

• Dual deionization purification columns (BCS-DI1) packed with high-capacity ion-exchange resins utilize a downflow configuration to prevent resin fluidization and stratification, delivering deionized water with a resistivity exceeding 15 MΩ·cm at 25°C, heavy metals below 0.1 ppb, and TOC levels under 30 ppb.

Intelligent Control, Automated Maintenance, and Ergonomics The system features a microcomputer controller with an animated LED display showing real-time operational status, including flushing, production, tank full, water shortage, and routine servicing alerts. To prevent mineral scaling on the membrane without chemical softeners, the unit executes three automated 30-second flush cycles: at startup, following water-shortage resets, and after every two hours of cumulative water generation. Consumable maintenance relies on a quick-turn rotary interface that enables column changeouts in tens of seconds without special tooling.

Technical Specifications

Estimated Consumable Lifespan Overview

Frequently Asked Questions (FAQ)

1. What distinct water grades are provided by the two dispensing ports?

The system features two independent outlets: one delivering reverse osmosis (RO) Grade 3 pure water and a second delivering high-purity deionized (DI) water with resistivity > 15 MΩ·cm.

2. Which laboratory procedures can utilize the RO pure water outlet?

RO water is suited for general glassware washing, ultrasonic bath filling, feed supply for secondary ultrapure water polishers, microbiological media dilution, and routine reagent preparation.

3. What applications are recommended for the deionized (DI) water output?

DI water is recommended for flame atomic absorption spectrometry (FAAS), buffer synthesis, hydroponics, biochemical reagent compounding, and sensitive microbial culture preparation.

4. What are the feed tap water quality requirements for installation?

The system operates on municipal tap water at 5°C to 45°C and 1.0 to 4.0 kgf/cm² pressure, with conductivity below 400 μS/cm (hard water above 400 μS/cm requires a pre-softener).

5. How does the unit prevent membrane fouling and mineral scaling?

It incorporates three automated 30-second flushing sequences: at power initialization, upon recovery from feed water shortages, and automatically after every 2 hours of cumulative water production.

6. How quickly can operators replace depleted filter cartridges?

The pretreatment and deionization columns utilize a quick-twist rotary interface, allowing routine cartridge exchanges to be completed in tens of seconds without tools.

7. Why does the deionization stage use a full downflow column configuration?

The full downflow configuration prevents water channeling and resin bed fluidization, avoiding resin layer stratification and maximizing ion exchange efficiency.

8. What is the expected service lifespan of the internal consumables?

Pretreatment columns (PP, AC1, AC2) typically last 4 to 6 months, the RO membrane lasts 1 to 2 years, and the dual DI polishing columns yield roughly 1,000 liters of deionized water.

9. How is water quality monitored during operation?

The system provides integrated online resistivity monitoring for DI water, supplemented by a portable battery-operated meter for checking TDS and temperature across tap, RO, and DI lines.

10. What built-in safety interlocks and alarms protect the equipment?

The microcomputer system includes visual and audible alarms for startup self-testing, power interruption reset, operating limit alerts, raw water cutoffs, and low/high-pressure excursions.

11. How does this system compare to an electric laboratory water distiller?

Operating at just 72W power consumption, this system consumes over 95% less electricity than a thermal water still while producing higher purity water with lower maintenance overhead.

12. Can the purifier feed external laboratory equipment automatically?

Yes, pairing the unit with an external pressurized storage tank enables pressurized automated on-demand feed to automated glassware washers, autoclaves, and analytical analyzers.