PROCESS MODELS

Three prerequisites for dosing models

Algorithms depend on instruments, process delays and execution constraints. Establish those conditions before evaluating chemical use or water quality.

Usable, consistent data

Confirm the meaning, units and timing of raw-water flow, quality, chemical concentration, dosing and evaluation points. Flag instrument drift, gaps and manual records. Attractive charts cannot compensate for unreliable inputs.

Distinguish coagulation from disinfection

Coagulation and disinfection have different mechanisms, evaluation points, delays and constraints. Coagulation can combine raw-water feedforward with downstream feedback. Disinfection must consider contact time, residual chlorine and operating procedures. Calibrate each process separately.

Define advice and execution boundaries

Start with advisory operation where appropriate, validating data quality, applicability and workflows. Automatic execution needs explicit authorisation, dosing limits, equipment checks and fallback rules. Compare results under similar flow, loading and operating conditions instead of promising a universal savings percentage.

Zhiyue technical note. Specific solutions depend on site conditions, agreed scope and validation.