Industrial Pretreatment Operations: Advanced Process Judgement and Diagnostics
At the top of an industrial ladder the subject list barely changes - it is the same plant,
the same chemistry and the same regulations as the entry rung. What changes is the cognitive
demand: less recall, far more application and analysis, and a heavier load of calculation.
Certification criteria for wastewater operators describe exactly this shift as the classes rise.
So this guide contains very little new vocabulary and a great deal of diagnosis.
The diagnostic discipline
Most industrial pretreatment failures present as one of a small number of symptoms, and each
symptom has several possible causes that lead to opposite actions. The skill is not knowing
more facts; it is systematically eliminating causes before touching a setpoint.
Symptom: effluent metal is high
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