| The Process
Buoys measure nitrate and ammonium through direct immersion
in aeration basins or final effluent. The buoy is filled by
the hydrostatic pressure of the water, and emptied by air pressure.
This eliminates the need for any pumps in the wastewater. Valves
contact only air, reagents, and calibration standards, assuring
a high level of reliability. |
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How
it works -
Isco-Stip Process Buoy PBS 1 (NH4)
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| For
ammonia measurement the Isco-Stip
Process Buoy PBS 1 (NH4) is equipped
with a purgeable cell, in which, wastewater is separated from
sludge and solids before it is fed into the reaction cell. During
the ammonium measurement, the necessary pH value is accurately
regulated to assure high measuring accuracy with low reagent
consumption. The buoy automatically calibrates itself
daily using the standard addition method, and at the same time
compensates for variability in the wastewater. |
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Features:
- Measurement
directly in aeration basins
- Automatic
self-calibration using standard addition method
- Normal
measuring range:
• 0.1 - 50 mg/litre NH4-N
(Ammonium)
- Analysis
delay time:
• 5 minutes (NH4)
- No
sample preparation, pumps, or transfer lines
- 6-hour
on-screen graph, scrollable through 14 days
- 90
day data storage on diskette
- Programmable
concentration/fault alarm
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