CODcr Online Automatic Analyzer

A CODcr online automatic analyzer is a continuous wastewater monitoring instrument measuring chemical oxygen demand (dichromate method) in real-time, enabling automated wastewater treatment plant control without requiring manual sampling and laboratory batch processing delays. The online approach provides immediate process feedback enabling rapid treatment adjustments maintaining stable effluent quality.

The analyzer architecture comprises automated sample intake systems drawing representative wastewater samples at programmed intervals, reagent injection systems adding potassium dichromate and catalyst, thermal reaction chambers maintaining 150°C oxidation temperature, and spectrophotometric detection measuring chromium reduction proportional to organic oxidation. Measurement cycles typically complete within 20–40 minutes enabling multiple daily measurements.

Integration with wastewater treatment distributed control systems (DCS) enables automatic aeration rate adjustment, chemical coagulant dosing, or sludge recirculation based on real-time CODcr measurement. Alarm thresholds trigger operator alerts when CODcr exceeds safe limits enabling manual intervention or emergency bypass procedures.

Environmental compliance in Pakistan requires adherence to Pakistan Environmental Protection Agency standards specifying maximum CODcr concentration in treated effluent — typically 100–200 mg/litre depending on receiving water body classification. Online monitoring provides objective compliance documentation preventing unexpected permit violations.

Maintenance requirements include periodic reagent replenishment, thermal system cleaning preventing scale accumulation, and calibration verification ensuring measurement accuracy across extended operational periods.

In Pakistan, CODcr online analysers support municipal wastewater treatment and industrial facility environmental compliance monitoring.

Tactical Supply Pakistan supplies CODcr online automatic analyzers for wastewater treatment monitoring and control applications.