P&ID
Water Treatment Coagulation Mixing System P&ID with pH Control and Dosing Pumps
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CASE ANALYSIS
Scenario
A water treatment plant needs a coagulation mixing stage with automated pH adjustment. Raw water is pumped through a flow control valve into a rapid mix tank, where coagulant and pH reagent are dosed by diaphragm pumps.
Key decisions
- Use diaphragm dosing pumps for precise chemical injection
- Control raw water flow with a diaphragm-actuated FC valve
- Measure pH on the tank outlet and modulate pH reagent dosing via an AIC loop
When to reuse this
Reuse for P&IDs of coagulation, flocculation, or chemical dosing systems in water and wastewater treatment where inline pH control and flow-proportional dosing are required.
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