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Wastewater Treatment Plants COD Water Quality Continuous Monitoring System Equipment
Product Introduction
The specimen was added with quantitative potassium dichromate solution in strong sulfuric acid medium with silver sulfate as catalyst and mercury sulfate as chloride ion masking agent, and the mixture was confined and dissipated by high temperature and high pressure at 165ºC to quantitatively convert hexavalent chromium to trivalent chromium, and the color of the mixture was changed, and the color change was measured by spectrophotometry to deduce the actual COD value, and the amount of consumed dichromate ions was equivalent to the amount of oxidizable organic matter.
Product Parameter
| Wastewater Treatment Plants COD Water Quality Continuous Monitoring System Equipment | |
| Measurement methods | Potassium dichromate spectrophotometry |
| Measurement range | 10.0~1000.0mg/L |
| Error of measurement | ≤±5% |
| Zero drift | ≤±5mg/L |
| Range drift | ≤±5% |
| Repeatability | ≤±3% |
Product Performance
1. Unique three-stage precision photoelectric metering device, fast
and accurate reagent extraction, significantly reducing the impact
of peristaltic pump tube aging.
2. Precise temperature compensation algorithm and ambient light
elimination measures, with consistent accuracy regardless of
spring, summer, autumn and winter.
3. Highly reliable reagent selection valve and digestion bottle
assembly, with low failure rate and low maintenance workload.
Product Application
Sewage Treatment Plant, Enterprise Outfall
