Ammonia Monitor for Wastewater

Description

The MS3500 is the first ammonia monitor for Raw Waste Water. Its rugged construction and design allows it to reliably measure Ammonia at the very front end of a waste water treatment plant, giving the operator a level of control and knowledge presently unknown to the industry. It is used to:

Monitor Raw Wastewater Intakes
Detect high loads of ammonia at the intake
Optimize the use of compressors and blowers in the aeration lanes
Analyze ammonia at the effluent
Analyze ammonia in the aeration lanes
Identify sources of ammonia discharges

Features and Benefits

No sensor cleaning
Works at Raw Waste Water Inlets
No filters needed
Minimum maintenance (every 3 to 6 months depending on water quality)
Stable and reliable measurement
Not affected by fouling, turbidity and suspended solids in a typical application
Does not block
Alarms to SCADA and other communications interfaces

Applications

The problem and the opportunity

Ammonia levels at the intake can change a lot from day to day and from hour to hour. No instrument to date is able to measure ammonia at the raw wastewater inlet (soon after the screens) without an extensive maintenance regime or filtration system. If there was an instrument able to measure ammonia levels soon after the screens operators could:

Improve the overall outgoing water quality
Save on electricity costs
Reduce chemical usage
Optimize their process
Identify serial offenders

Specifications

Spec	Value
Dynamic Range	1 ppm – 200 ppm in water
Absolute Accuracy	Ammonia in Water: ±10%
Repeatability	Repeated measurement, 5ppm Ammonia in Water: ±2%
Sampling Frequency	60/30 minutes (Contact us for other sampling periods)
Relays	2x, User Programmable function
Analogue Output	4 – 20 mA, Loop Resistance 40 Ω – 1k Ω
Digital Outputs	Modbus, Profibus as options
Typical Power Consumption	70 W in normal operation
NaOH Requirement	10 l of 1 M NaOH per 15 Weeks
Enclosure	GRP
Operating Temperature	1 °C – 50 °C