Decolorizing Agent Dosage Calculation
A simple dosage calculation reference for water decoloring agent, PAC and PAM jar tests in wastewater treatment.
Basic Formula
This formula is used as a reference for jar test dosage calculation. Plant-scale dosage should be confirmed by test and operation conditions.
In the original test reference, 20 drops are considered approximately 1 ml. Please treat this as a laboratory reference only.
Example Calculation
For 200 ml wastewater sample, if 10 drops of 2% water decoloring agent solution are added:
| Item | Value |
|---|---|
| Wastewater sample | 200 ml = 0.2 L |
| Chemical solution | 2% diluted water decoloring agent |
| Added volume | 10 drops = 0.5 ml reference |
| Calculated dosage | Approx. 50 ppm reference |
Calculation Notes
Dosage calculation is only one part of testing. Final selection must compare actual treatment results.
Do Not Judge by Dosage Alone
Compare color, clarity, floc strength, settling speed and sludge amount.
pH Matters
pH can affect decolorization and coagulation performance. Check pH before dosing.
Sequence Matters
The dosing order of decoloring agent, PAC and PAM may affect final result.
Suggested Testing Table
Use multiple dosage points to avoid missing the optimal range.
| Test Cup | Decolorizing Agent | PAC | PAM | Observation |
|---|---|---|---|---|
| Blank | 0 | 0 | 0 | Original color and settling |
| A | Low | Fixed | Fixed | Check color reduction |
| B | Medium | Fixed | Fixed | Compare clarity and floc |
| C | High | Fixed | Fixed | Check overdosing possibility |
Need Dosage Help?
Send your test volume, dilution concentration, drops/ml added and treatment result. We can help review the calculation direction.
Technical guides for color removal buyers
Use these practical guides to prepare wastewater data, compare chemical combinations and estimate treatment cost before requesting a sample.
Official Website Images Integrated
Jar-Test and Quality-Control Visual References
These official images help visitors understand how Hubei Haite evaluates color removal, floc formation, settling performance and dosage matching before recommending a chemical program.




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Laboratory testing and quality-control visuals
These images are matched to laboratory evaluation, pH checking, jar test and batch quality control content.


