Application / lab test
Textile Effluent Decolorization: Decolorant, PAC and PAM
This video shows a staged textile-effluent screen using Water Decoloring Agent, PAC and PAM, followed by visible floc separation. The page helps buyers design a test that reflects the real dyeing operation rather than treating all colored water as one stream. Identify the fiber and dye class, segregated or equalized sample point, pH, salt, surfactants, temperature, measured color and downstream process. Compare untreated, single-product and combined conditions across representative dye campaigns, then repeat the preferred exact grades before moving to a controlled plant trial and quotation.
Watch on YouTube Published
Direct answer
A textile effluent decolorization test should reproduce the real dyeing stream, not use color alone as the acceptance criterion. The video shows a water decoloring agent, PAC and PAM added in stages, followed by visible floc separation. To select a grade, record the dye class, process stage, pH, salt, surfactants, sample point and measured color before comparing chemical sequences.
Define the textile stream
Reactive, disperse, acid and other dye systems can respond differently, and a combined equalization tank may contain scouring, dyeing and washing chemistry. State the fiber and dye process, whether the sample is segregated or combined, and what treatment follows the jar test.
Preserve a representative sample and use the same starting pH, mixing and observation time in every beaker. Include a no-treatment control and single-product controls so the contribution of each stage is visible.
Use exact linked product families
Water Decoloring Agent, PAC and PAM are the exact site product families associated with this test. Ask for the grade identifiers and current documents before samples are compared; generic chemical names are not sufficient for a repeatable purchase.
Measure color by the site's method and include solids, separation behavior and downstream constraints. If the water enters biological treatment, include compatibility in the controlled plant-trial plan.
Build the buying record
The trial sheet should connect sample source, date, baseline data, grade and batch, dosing order, mixing conditions and measured results. Attach current TDS, SDS and sample COA. Purchasing can then request the same grade and operations can reproduce the trial conditions.
Design a textile sample matrix
Instead of testing one mixed bottle, select samples that represent the plant's important dye classes and the normal combined equalization stream. Add a high-salt or high-surfactant condition when it occurs in production. Label each sample with process, date, shift and relevant recipe change so results can be interpreted later.
Use the same starting volume, mixing and separation time. Compare the full sequence with decolorant-only and PAC-only controls, then test PAM grades after the strongest primary condition. Report measured color and solids behavior for every row in the matrix. This reveals whether one grade covers the operating envelope or separate instructions are needed for different dye campaigns.
When two conditions are close, repeat both with a fresh sample and compare sludge handling as well as color. Select the condition that operations can feed and separate consistently, then attach the repeat record to the purchase recommendation. Include sample temperature and pH correction. Name the exact grades used in the repeat.
Technical specifications
Use these source-linked fields when preparing the sample request, specification or order record.
| Field | Value | Source |
|---|---|---|
| Decoloring-agent solids | ≥50% | Water Decoloring Agent product page |
| Decoloring-agent pH | 2.0–5.0 for a 30% water solution | Water Decoloring Agent product page |
| PAC alumina (Al₂O₃) | ≥29% | PAC product page |
| PAC pH | 3.5–5.0 for a 1% solution | PAC product page |
| PAM catalog forms | Anionic, cationic and nonionic powders | PAM product page |
| PAM solids | ≥90% | PAM product page |
Textile sample matrix by dyeing condition
A matrix reveals whether one chemical sequence covers the production range or separate instructions are needed.
| Condition | Why include it | Record |
|---|---|---|
| Normal equalization sample | Represents routine operation | Baseline and repeatability |
| High-color campaign | Tests difficult color load | Measured color response |
| High-salt condition | Tests ionic-strength change | Floc and carryover |
| High-surfactant condition | Tests interference | Separation and foam |
| Fresh repeat sample | Confirms selection | Exact grades and doses |
Textile sample-matrix flow
Which textile-effluent facts improve product selection?
Dye class and process chemistry explain why apparently similar colored samples can respond differently.
- Fiber, dye class and recipe stage
- Segregated or equalized sample point
- pH, temperature, salt and surfactants
- Measured color, solids and COD where available
- Downstream biology, reuse or discharge constraints
Buyer questions
What products are linked to the textile-effluent test?
Water Decoloring Agent, PAC and PAM are linked as the candidate product families.
Why should dye class be recorded?
Reactive, disperse, acid and other dye systems can respond differently to the same chemical sequence.
How many samples should be screened?
Include the routine equalization stream and important difficult campaigns such as high color, salt or surfactant conditions.
What makes a result repeatable?
Keep sample volume, starting pH, mixing, separation time, exact grades and measurement methods consistent.
How can a buyer request textile samples?
Send the dyeing-process matrix, water data, treatment targets and requested document set.
Request a textile effluent sample screen