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Water Active :: products :: COD in 10 minutes

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COD in 10 minutes

Posted: Wednesday 3rd June 2009

Camlab has launched a revolutionary instrument from Aqua Diagnostic, which is capable of accurate, sensitive, real-time analysis of Chemical Oxygen Demand. The new green technology requires no hazardous chemicals, produces fast results and eliminates the time consuming digestion step.

The core of the technology is the PeCODô sensor which has a number of practical advantages compared with the traditional methods of COD analysis. PeCOD's ability to analyse samples containing chloride is significantly better than the dichromate method, and does not require the addition of toxic reagents like mercury and silver salts. The increased sensitivity of the method enables the measurement of clean water samples with low ppm levels of COD. Typical analysis times of less than 10 minutes are easily achieved.

The sensor consists of a UV-activated titanium dioxide film coupled to an external circuit. The high oxidising power of the sensor gives the analyser a significant advantage compared with the traditional dichromate method. The PeCODô COD analyser exhaustively oxidises all organics, and counts the electrons that are liberated to provide a direct measure of equivalent COD.

The PeCODô analyser is available as a true on-line monitor or can be supplied as a benchtop laboratory instrument, which has an optional battery pack for field use. The PeCODô technology allows the user to rapidly measure COD online in real time and enables a reading to be generated every 15 minutes to give unrivalled data on a waste or discharge stream. The online real time capability means that processes can be adjusted to reduce energy use or to make treatment more cost effective.

For more information on the PeCODô technology and for technical articles please contact the UK agent for PeCODô, Camlab Ltd, on 01954 233100 or www.camlab.co.uk.




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