Online Toximeter that protects the biology of wastewater treatment plants.
LAR’s toxicity analyzer NitriTox continually monitors water treatment plants for pollutants. Potential toxins in water are determined through the reaction of highly sensitive bacteria. The measurements follow at intervals of less than 5 minutes. Thus allowing enough time to introduce countermeasures after the occurance of pollution. NitriTox contains a bacteria culture which constantly and independently produces biomass. This means that there is always enough bacteria for each new measurement. As every water sample is tested with a fresh amount of bacteria, the risk of the fermenter being contaminated is removed.
Features and Benetits
• Measurement range: 0 – 100% Toxicity
• Response time: 5 – 10 minutes (depending on application)
• Toxicity monitoring
• Self-regenerating culture of nitrifying bacteria
• Highly sensitive
• No memory effects
• Low operational cost
• High reproducibility
• No purchase of test organisms required
• According to DIN EN ISO 9509:2006
Applications
Nitrification is the phase of biological wastewater treatment in which bacteria oxidize ammonium to nitrate. Toxic loads affect the bacteria and thus the treatment process. LAR’s NitriTox is used to protect these bacteria.
• Water influent
• Industrial waste water
• Protection of biological WWTP
| Measurement Technique and Sample Preparation | |
| Measurement Method | Determination of toxicity through the measurement of oxygen conversion |
| Measurement Compliance | According to DIN EN ISO 9509:2006 |
| Measurement Ranges | 0-100 % Toxicity |
| Sensitivity | 0% Toxicity |
| Oxidation Principle | Determination of inhibition of respiration with nitrifying bacteria |
| Accuracy | 10-15% Toxicity |
| Repeatability | 10-15% Toxicity |
| Cycle Time | 12-15 Min |
| Response Time | 5 Min (application dependent) |
| Bacteria Culture | Nitrififiers |
| Particle Size | Soft particles max. 2mm |
| Temperature and Humidity | |
| Permissible Sample Temperature | 5 – 25°C / 41°F – 77°F |
| Ambient Temperature recommended | 10 – 25 °C / 50°F – 77°F |
| Ambient Air Humidity | Max. 80% (non condensing) |
| Dimensions and Weight | |
| Housings | Steel, coated with powder paint, IP54 (further on request) |
| Dimensions | W 630 x H 1265 x D 580 mm W 49.8″ x H 24.8″ x D 22.8″ |
| Weight | 70 kg / 154.3 lbs approx. |
| Electric and Hydraulic Specifications | |
| Inflow and Outflow | Tube 6 mm ID and 8 mm ID |
| Power Supply | 230 /115 V~, 50 / 60 Hz, 100 VA |
| Analogue Output | 0/4 – 20 mA |
| Serial Interface | RS 232, combined alarms, Life-Zero, USB |
| Safety | 10 A internal, 16 A external |
| Options | Remote control via TCP/IP protocol, Sample taking system FlowSampler, Air Treatment |
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