Arium® Advance RO Lab Water Purification System

Reliably Remove Oxidants, Heavy Metal Ions and Particles from Feed Water

The Arium® Advance EDI and Arium® Advance RO systems achieve high retention rates of ions with an optimal water yield to remove impurities from your feed water. 

The built-in iJust function also optimizes purified water quality and water usage. Pure water is stored and ready to be used in the innovative, closed Arium® Bagtank system, which protects water from secondary contamination.

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Arium® Advance Product Line-up

Arium® Advance EDI

Reliable Electrodeionisation

The Arium® Advance EDI consistently provides high-quality ASTM Type 2 water. With a flow rate of 5 or 10 L/h, automatic reverse osmosis (RO) membrane backflush, iJust, the latest EDI technology and a constant flow rate, the Arium® Advance EDI is the ideal choice for general and demanding laboratory applications.

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Arium® Advance RO

Reverse Osmosis System with iJust

The Arium® Advance RO provides high-quality Type 3 reverse osmosis water. With a flow rate of 8, 16 or 24 L/h, automatic RO membrane backflush and constant flow rate, the Arium® Advance RO is the optimal choice for general laboratory applications.

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Arium® Bagtank

Gain time by using the unique Arium® Bagtank!

The revolutionary Arium® Bagtank stores Type 2 or reverse osmosis (RO) purified water reliably in your choice of 20, 50 or 100-liter disposable Arium® Bags and protects your purified water with its built-in filter system from secondary contamination.

Moreover, unlike typical laboratory water storage tanks, the disposable Arium® Bag is easy to exchange in less than five minutes, eliminating time-intensive cleaning with chemicals.

Specially designed for the pharmaceutical industry, this bag is made of high-quality S71 material and provides optimal storage conditions, thus ensuring consistent water quality over the long term.

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Arium® Smart Station

A Flexible Solution for Dispensing Pure and Ultrapure Water

Laboratory space is often very valuable, especially when centralized laboratory water systems are required to dispense pure and ultrapure water for various applications. The Arium® Smart Station allows you to maximize lab space capabilities as the system adapts to your needs.

In addition to being economical in terms of its footprint, the Arium® Smart Station is flexible in regards to dispensing water. It gives users full control over quality parameters at the point of use and the ability to fill different sized containers with different flow rates at the same time across the lab.

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Advantages of the Arium® Advance


Consistently high water quality, thanks to the RO modules and the latest EDI technology (Arium® Advance EDI)


Optimize your water consumption with the built-in iJust function


Use of innovative bag technology eliminates costly tank cleaning


Easy to operate, unique touch display with intuitive menu navigation

Select the Arium® Advance for Your Laboratory Requirements

Feed Application

Arium® Advance ROArium® Advance EDI

Feed ultrapure water systems



Feed distilled systems



Water for Laboratory devices (Autoclaves | Washing Machine etc.)



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General Lab Applications

Arium® Advance ROArium® Advance EDI

Buffer, media and pH solutions





ELISA (Enzyme-Linked Immunosorbent Assay) 


AAS (Atomic Absorption Spectroscopy)


Solutions for chemical analysis and synthesis


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Ultrapure Water for HPLC Analysis cover
Application Note

Ultrapure Water for HPLC Analysis

Learn how ultrapure water produced by Arium®Pro VF can be readily used as the mobile phase for HPLC analysis of the water-soluble saccharides.

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Cannabis Testing: In-House Prepared Water as an Alternative to Bottled HPLC-Grade Water
Application Note

In-House Prepared Water as an Alternative to Bottled Water

During cannabis testing, bottled HPLC-grade water is the standard. In-house produced water may be an equivalent and cost-effective alternative.

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Arium Ultrapure Water for Trace Analysis cover
Application Note

Arium® Ultrapure Water for Trace Analysis

HPLC is an analytical procedure for separation, identification and quantification of substances using liquid chromatography.

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Water is Life cover

Water is Life: Ultrapure Water in Cell Cultivation

Water is a major component of all cell culture media and is therefore needed to prepare media, buffers, and additives.

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Arium® Advance RO

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Arium® Advance EDI

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Scientist with Arium Comfort

Services for Arium® Water Purification Systems

Secure and optimize your lab water equipment operation with installation, qualification, calibration, and regular maintenance.

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Frequently Asked Questions

The difference is the produced product water quality. Arium® Advance RO produces reverse osmosis (RO) water while Arium® Advance EDI produces ASTM Type II, or pure water. The Arium® Advance EDI has an electrodeionizatoin (EDI) module integrated into the system in addition to the reverse osmosis module the Arium® Advance RO has. This allows the EDI version to produce higher quality water as well as consistent water quality. As the reverse osmosis module removes impurities to a certain percentage, its quality depends on the feed water and therefore is not consistent.

The Arium® Advance RO has 3 versions with 8, 16 or 24 L/h production flow rate, while the Arium® Advance EDI has 2 versions with 5 or 10 L/h. The different versions let you choose which system would be most suitable for you depending on water consumption. Your daily water consumption can also be covered with the right choice of Bagtank volume in combination with the Arium® Advance system.

As the production rate of the Arium® Advance system does not meet the required dispense rate (because of the purification techniques), you should combine the Arium® Advance system with a Bagtank. The Bagtank ensures a good dispense rate.

All Arium® Advance systems have the iJust feature integrated. iJust helps define the optimal ratio of product and wastewater for the reverse osmosis module. Usually it is a fixed ratio; however, the iJust feature can adjust the ratio depending on local hardness and CO2 level in the feed water. Better quality feed water leads to a higher ratio of product water compared to wastewater. iJust® also optimizes cleaning intervals for reverse osmosis (RO) modules, based on feed water quality.

The RO membrane may lose its properties with time as it gets scaled from calcium carbonate and blocked by other impurities in the feed water. To ensure proper operation over time, the RO membrane should be cleaned every 2-4 months, depending on feed water hardness (which is determined by the concentration of calcium carbonate among other minerals). The Arium® Advance also uses a backflushing process which helps to protect the RO membrane against scaling. 

The reverse osmosis (RO) membrane is subject to scaling from calcium carbonate in the feed water. To reduce the possibility of scaling while the system is in stand-by (ECO-mode), the system uses a backflushing feature. The system flushes feed water out from the RO module with pretreated water. As a result, the RO membrane is then standing in pretreated water instead of feed water, reducing contact with calcium carbonate. The backflushing process can also be started manually.

The Smart Station Pure version is compatible with the Bagtank, which is connected to the Arium® Advance RO|EDI. The data connection is to the Arium® Advance unit, which allows full visibility of the quality values on the Smart Station as well. You can connect 1 Smart Station Pure to the Bagtank.

The following service options are available for the Arium® Advance systems: Installation, qualification (IQ/OQ), preventive maintenance and service contracts. You can have Sartorius trained and qualified engineers perform the installation for you and a qualification check (IQ/OQ) at the same time if needed. It is possible to sign service contracts for regular checks and consumable changes or have preventive maintenance or service visits as needed. 

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