Ultrapure Water Systems 

Ultrapure Water 

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Ultrapure Water

Ultrapure Water (UPW) can be defined as water from which most other materials have been removed, producing a resistivity of at least 18 M-cm, making it sufficiently pure to meet exacting microelectronic, pharmaceutical and medical standards.

There are several characteristic requirements that are important to end-users of ultrapure water. These include detection in the UPW stream and control of bacterial proliferation; particulates; organic contaminants, typically measured as total organic or total oxidizable carbon (TOC); metallic contaminants; and anionic contaminants.

Investigating methods for improving the removal of inorganic and organic contaminants to produce ultrapure water is an ongoing process. However, several technologies have been successful in this application, including activated carbon adsorption, reverse osmosis and advanced oxidation.
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Ultrapure Water Case Study

Heart of the Valley Sewerage District Relies on PURELAB® Option-R Laboratory Water System for BOD Testing

Heart of the Valley Sewerage District in Kaukauna, Wisconsin required high-purity water to test plant effluent for biochemical oxygen demand (BOD) and other contaminants.  Testing is required to ensure that the effluent meets state and federal guidelines before discharge into the Fox River. 

Laboratory manager Chad Giackino tests the facility’s effluent daily, using a pure water sample as a benchmark.  He used a still to make the pure water; however, it proved unreliable. Giackino switched to a PURELAB® Option-R point-of-use laboratory system from Siemens Water Technologies.

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Ultrapure Water Case Study
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Featured Ultrapure Water Products

Activated Carbon Adsorption
Reverse Osmosis
Continuous Electrodeionization (CDI)
Vanox™ AOP System 
PURITAS™ VRx System

Ultrapure Water Case Studies

Microelectronic Customers Benefit from MEG PPQ Resin
Water Purification System for High Risk Biohazard Laboratories: Water Quality and Serviceability without Comprise
Siemens Helps the University of Alabama at Birmingham Meet Stringent Water Quality Requirements for its Research Laboratory
Gasket Upgrade Means an Upgrade in Water Quality
Northwest Fab Relies on Siemens to Provide Creative Space Planning for UPW System
Siemens Water Technologies Provides Outsourced Operations for UPW System in Northwest Fab
Northwest Fab Finds Success with Reject Ultrafiltration System

Featured Article

Critical Ultrapure Water Applications for the Semiconductor Industry

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