oxygen sensors Articles

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Boiler Dissolved Oxygen Control

by IC Controls Ltd.  (May 20, 2015)

DISSOLVED OXYGEN CHEMISTRY Dissolved Oxygen (DO) is a measure of the amount of oxygen, usually thought of as a gas, that is dissolved in a liquid such as water. Oxygen is essential to life and is also the most common element found taking part in corrosion reactions. DO can be thought of as the fuel needed for the corrosion process to proceed. It ...

What is the challenge with the dichromate COD approach and why is an alternative method required?

by Camlab Limited  (May 14, 2015)

Ask The Expert: What is the challenge with the dichromate COD approach and why is an alternative method required? Answer: The traditional COD analysis approach has been used for decades and is based on the use of potassium dichromate, one of the reagents necessary ...

Effect of sensor location on controller performance in a wastewater treatment plant

by IWA Publishing  (Mar. 16, 2015)

Complete mixing is hard to achieve in large bioreactors in wastewater treatment plants. This often leads to a non-uniform distribution of components such as dissolved oxygen and, hence, the process rates depend on them. Furthermore, when these components are used as input for a controller, the location of the sensor can potentially affect the ...

From 370km above the earth to 11000m under the sea

by Analox Sensor Technology  (May 27, 2015)

It’s a bold strapline – but what does it mean? Have we opened an atmosphere research facility in outer space? Organised an aquatic Charity Day in the Mariana Trench? Well, if you didn’t know anything about Analox you’d be forgiven for wondering. After all, three-hundred and seventy kilometres above the earth is a long way ...

When is a Nitrogen Monitor Not a Nitrogen Monitor?

by Analox Sensor Technology  (Apr. 15, 2015)

No matter what industry you work in, whether it be diving, agriculture, academia, aerospace or catering you will no doubt have your own industry specific language. My favourite take on this is this ...

Long Lasting Safety with PureAire Monitoring Systems’ 10+ year sensors

by PureAire Monitoring Systems, Inc  (Jul. 21, 2014)

When it comes to oxygen deficiency monitors, PureAire makes the longest lasting units on the market. They believe your safety should not be taken lightly, and have created a reliable and affordable monitor that will outlast all of their competitors. PureAire Monitoring Systems has broken away from the norm of using disposable sensor cells, and has ...

Factors affecting the performance of a single-chamber microbial fuel cell-type biological oxygen demand sensor

by IWA Publishing  (Nov. 13, 2013)

Microbial fuel cells (MFCs) are devices that exploit microorganisms as biocatalysts to degrade organic matter or sludge present in wastewater (WW), and thereby generate electricity. We developed a simple, low-cost single-chamber microbial fuel cell (SCMFC)-type biochemical oxygen demand (BOD) sensor using carbon felt (anode) and activated ...

PureAire Combines Oxygen and CO2 Sensors to provide a Dual Gas Monitor to the Marketplace

by PureAire Monitoring Systems, Inc  (Apr. 30, 2013)

As a recognized leader in O2 safety monitoring, PureAire recently explored the need for an O2 monitor where carbon dioxide is used. There are four key cryogenic gases; nitrogen, helium, argon, and carbon dioxide (CO2), which can create an oxygen deficient atmosphere. Material Safety Data Sheets (MSDS) covering cryogenic gases cite that a cryogenic ...

Q&A: Patrick Wagnon on glaciers and climate change

by SciDev.Net  (Apr. 17, 2015)

Patrick Wagnon is a glaciologist at the Institute of Research for Development in France, and a visiting scientist at the International Centre for Integrated Mountain Development in Kathmandu, Nepal. As a global ‘glacier chaser’, he has summited some of the highest mountains in the world, including the 8,516 metre Lhotse in the ...

Moisture in Oils: The Three-Headed Beast

by Arizona Instrument LLC  (Apr. 14, 2015)

Abstract Moisture contamination in in-service lube oils is perhaps one of the most destructive forms of engine corrosion second only to particle contamination.  Water contamination in oil can be categorized into three forms of water; Free, emulsified, and dissolved.  All forms of water have direct consequences to the oil and gears of ...

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