Products
DropletSens™
Nitrate/Nitrite Analyser
Real-time, high-frequency, lab-quality nitrate/nitrate monitoring.
Features
- Based on established Griess test
- Nitrate and nitrite determined autonomously in series
- Fully quantitative
- On-device standard for performance QC
Specifications
Analytical
- Range
-
0 - 100 mg/L NO3
0 - 75 mg/L NO2 - Detection Limit
-
0.19 mg/L NO3
0.14 mg/L NO2 - Measurement Frequency
-
up to every 10 seconds
default setting is every 15 min
Operational
- Temperature range
- 0 - 35 °C
-
Power consumption** for continuous use measuring every 15 min
- 1.5 W
Physical
- Height
- 440mm
- Width
- 330mm
- Depth
- 200mm
- Weight
- 10.5kg
Communications
- Connectivity
- RS232/RS485, Modbus, Bluetooth, SCADA compatible
- Data output
- Remote streaming
Maintenance
- Reagent change after 3 months if in continuous use
- Required inlet filter change frequency depends on application
Applications
Nitrogen Cycle, Nitrification & Denitrification, Drinking Water Treatment, Process Control, Rivers &Streams , Coastal, Agriculture, Nitrogen Reuse In Irrigation, Aquaculture, Industrial, Environmental Monitoring, Estuary Monitoring, Catchment Monitoring, Effluent Monitoring, Nutrient Mapping, Nitrogen Removal, Nitrogen Recovery, Nutrient Trading, Nature-Based Solutions Effectiveness Monitoring .
Why nitrate and nitrite?
Monitoring nitrate and nitrite in surface waters allows early spotting of increased levels for spillage investigations and for guiding remedial actions, including nature based solutions. Inside wastewater treatment plants nitrate and nitrite levels can be measured for improved process control (nitrification and denitrification) and effluent discharge monitoring.
Nitrate and nitrite are both part of the nitrogen cycle. In surface water ammonium is typically oxidised via nitrite to nitrate, which is more stable. Main contributing sources are agricultural fertiliser and manure run-off as well as discharged sewage. High levels of nitrate can cause excessive algae growth and eutrophication in lakes, estuaries and coastal waters, with damaging effect on local aquatic life. In drinking water, nitrate levels ≤ 10 mg/L are typically targeted, to avoid blue baby syndrome and other potentially adverse health effects on humans.
Monitoring Solutions
Online analysers are for use outside the water source and as such require pumped solutions. To protect the equipment from suspended solids in the water, we offer a variety of pre-filtration solutions, including:
A. Passive filtration: large area non-biofoul polyethersulfone (PES) membranes.
B. Active filtration:
- B1. Self-cleaning pumped approach with Rotorflush module:
- B2. Ceramic silicon carbide (SiC) flat sheet membrane approach with back-and jet-washable Cembrane module:
