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New from Pollution & Process Monitoring Limited - PPM is the WTW AmmoLyt System, an in-situ ammonium sensor offering
fast and accurate ammonical-nitrogen measurement for aeration control.
Designed for use with WTW's IQ Sensor Net System, the new AmmoLyt 700 IQ allows "ammonia measurement" directly in the
aeration basin, with no need for sample preparation or sample pumping.
Although conventionally in the UK, the measurement of dissolved oxygen is used to control aerobic digestion, it has been
shown particularly in Germany, that more efficient automation can be achieved by primarily controlling aeration dependant
upon ammonical-nitrogen concentrations. Not only can the nitrification/de-nitrification process be optimised but also as a
consequence, significant cost savings can be achieved. Improved aeration control, reduced energy consumption and optimum
effluent quality. This really is a win-win situation.
The new AmmoLyt system comprises a specially designed ammonium sensor that is suitable for direct measurement within
the aeration basin. The sensor itself fits into a special protective armature that communicates with the IQ Sensor Net
system. Like every other WTW IQ sensor, the AmmoLyt ammonium sensor can be fully integrated into the system by simply
plugging it in. All the necessary calibration and identification data is then automatically uploaded.
The system is maintained by automatic, in-situ air cleaning using compressed air. This is controlled by the IQ Sensor
Net System which also allows other sensors, such as DO and Suspended Solids, to be connected.
The latest development is the VARiON. This armature allows the integration of four electrodes into a single probe.
Not only can ammonium and nitrate measurements be combined but additionally potassium and chloride electrodes may also
be installed. These measurements can be useful to provide real time dynamic compensation for interfering ions in
applications which exhibit a high degree of variability (saline intrusion or industrial).
Furthermore recent advancements with regards the design of the reference electrode has improved the stability of
calibration and measurement performance. The electrodes can be fitted and used immediately without the need to perform
calibrations against reference solutions improving the ergonomics of the system.
Pollution & Process Monitoring Ltd
Bourne Enterprise Centre
Borough Green
Sevenoaks
Kent TN15 8DG
Tel: +44 (0) 1773 717318
Fax:+44 (0) 1732 780190
E-mail:  TOC@pollution-ppm.co.uk |
