2029 Nitrate/Nitrite Analyzer

From Metrohm Process Analytics

The importance of nitrogen removal from effluent water streams has increased over the past decade to minimize water pollution and eutrophication of water bodies. During wastewater treatment, nitrogen compounds like ammonium are oxidized to nitrates (NO -) and nitrites (NO -), to subsequently being converted 3

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to nitrogen gas, which is then harmlessly released into the atmo-sphere. Therefore, it is really important to measure the NO - and 2

NO -concentrations continuously to ensure complete nitrogen 3

gas conversion and meet effluent requirements imposed by leg-islation.



To ensure that the concentrations of nitrate/nitrite do not exceed the limits, constant monitoring of the waste water is important for many industries.

The 2029 Nitrate/Nitrite process analyzer from Metrohm Process Analytics is the most straightforward and easy-to-use tool to do so online.

About the Nitrate/Nitrite application

NO - is determined photometrical y with NEDD which forms a purple 2

complex in acid medium, measured at a wavelength of 540 nm. NO - is 3

reduced to NO - with hydrazine and a catalyst. The analyzer is able to 2

measure a wide range of NO -/NO - concentrations, from µg/L to mg/L.

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Benefits for online analysis

Applications for NO -/NO -

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• Protect expensive company assets by monitoring your processes

• … in drinking water treatment / (potable water)

• Process data available at your fingertips 24/7 means no waiting for

• … in PCB production / (semiconductor) slow, manual laboratory methods

• … in soya production / (food & beverage)

• Increased safety for employees – no manual sampling necessary,

• … in salt (NaCl) production / (chemical) no exposure to dangerous environments

• … in paper production / (pulp and paper)

• Save money by reducing downtime: analyzer sends alarms for out-

• … in steel production / (steel/metal) of-specification values which inform the operator sooner

• … in wastewater treatment plants / (enviromental) NO -/NO - analysis performed safely online 2

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• Nitrates and Nitrites can be measured in 1 or 2 sample streams

• Compact footprint for tight industrial spaces: 326 × 273 mm

• Safe, rugged enclosure designed to IP66 specifications is ideal for process environments

• A 7” full color touchscreen shows trend graphs and al ows action modifications

• Remote access and control via Ethernet and Modbus TCP/IP, with USB for data export

• Easy maintenance due to simplicity of the layout

• Automatic data and/or alarm transfer to a DCS system 8.000.5320EN – 2019-08

For more information, visit our website: www.metrohm.com