WQA6 Min Read Β· Published 2026-06-02
Best Practices for Decomposing High Salinity Effluent BOD/COD Streams
V
Vikramjit Singh
Technical Compliance Specialist
"How to prevent sensor fouling, salt crystallization, and bio-growth in effluent water monitoring stations."
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The Fouling Problem
Online chemical oxygen demand (COD) and biochemical oxygen demand (BOD) analyzers are vulnerable to organic bio-fouling and salt scaling. High-salinity streams risk coating optical measurement cells, causing severe positive signal drift.
Mitigation Strategies
Deforming the sample stream through custom automatic dilution loops and scheduling dynamic sulfuric acid or ultrasonic cleaning cycles can extend electrode life from 2 weeks to 6 months.
Measurement Best Practices
Read on to analyze spectrophotometric absorbance profiles and chemical reagent consumption reduction.
Tags:#COD#BOD#Effluent#Water Quality
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