• New Optical DO Monitor with Integral Autoclean

Environmental Laboratory

New Optical DO Monitor with Integral Autoclean

Nov 25 2008

ATi launches new Optical DO monitor with integral AutoClean
The costs of running aeration plants used to be around 50-60% of the costs of running a waste water treatment plant. It is now closer to 75-80%. Crucial to reducing energy is reliable dissolved oxygen measurement.

The key to optimisation of the aeration process is accurate, but much more importantly, reliable DO monitoring. The signals from on-line D.O. equipment provide the basic control parameter required for blower control. With dependable control inputs, aeration equipment can be modulated to maintain D.O. values at optimum levels.

Galvanic, polarographic, membraned, non membraned or optical. Whatever the sensor type if they are dirty they do not give accurate readings. A dirty sensor will either read low or not at all. This causes the system to over aerate and leads to a waste of energy. Studies in the UK and USA indicate that each ppm error in dissolved oxygen measurement results in a 12-15% increase in electricity costs.

The key to reliable measurement is keeping the sensor clean. Manual cleaning is expensive and time consuming and cannot be undertaken frequently enough to give the reliability needed for control.

The ATi AutoClean, dissolved oxygen monitor is available with either galvanic or optical sensor and can be programmed to clean itself from once every hour to once every day.

see the Website for more information

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