What is pH Correction?
The controlled dosing of acid or alkali to adjust the pH of a water or process stream to a required target value.
View pH Correction SystemspH Correction Explained
Acidic streams (pH below 6.5) are corrected by NaOH, lime or soda ash. Alkaline streams (pH above 8.5) by HCl or H2SO4. pH correction systems use online pH analysers with PID feedback control. A static mixer downstream ensures rapid mixing before pH measurement.
Common Applications
- Effluent treatment discharge compliance
- Process reaction control
- Boiler water treatment
- Water softening
Selection Factors
Correct selection depends on the process objective and site conditions. For pH Correction, Premix usually reviews these points before recommending equipment:
- Influent pH range
- Target pH
- Buffer capacity of stream
- Chemical selection
Why It Matters In Plant Operation
pH Correction affects process stability, chemical usage, equipment life and final output quality. A correctly selected solution helps reduce trial-and-error at site and supports more predictable daily operation.
Frequently Asked Questions
What is pH Correction?
The controlled dosing of acid or alkali to adjust the pH of a water or process stream to a required target value.
Where is pH Correction commonly used?
It is commonly used in Effluent treatment discharge compliance, Process reaction control, Boiler water treatment, Water softening.
How does Premix select pH Correction?
Premix reviews Influent pH range, Target pH, Buffer capacity of stream, Chemical selection along with the plant layout and maintenance requirement.