PAM with CAS number 9003-05-8 is mainly used for waste water treatment as flocculant.
Below is the test details for finding choose the PAM for water treatment process.
Coagulation and Flocculation Tests
This standard method controls and compares, on many samples, the perfomance on clarification and sedimentation:
- of the reagent used (type, dosage, concentration, order of addition),
- of different operating conditions (intensity and length of agitation)
Procedure 1: Choice of primary coagulants dosage (example of a procedure)
Stage A - measure temperature, turbidity, pH of raw water
Stage B - fill a beaker with 1 litre of raw water
Stage C - add organic coagulant in solution or neat (as a single product, or as a blend with mineral coagulant), varying the dosages
Stage D - quick agitation phase (hydrolysis) 250 rpm for 2 minutes
Stage E - slow agitation phase (floc growth) 40 rpm for 15 minutes
Stage F - sedimentation phase (stop agitation) settle for 20 minutes
Stage G - sample supernatant after 3, 5 and 20 minutes in order to measure improvement in turbidity
This test determines the minimal coagulant dosage used for destabilization of a colloidal suspension in raw water.
Procedure 2, as « procedure 1 » selection of flocculant to achieve optimum sedimentation.
Procedure 2 : Determination of PAM dosage
Stage A - measure temperature, turbidity, pH of raw water
Stage B - fill any beaker with 1 litre of raw water
Stage C - add organic coagulant according to the results of procedure 1
Stage D - quick agitation phase (hydrolysis) 250 rpm for 2 minutes
Stage E - add flocculant solutions at various dosages into individual beakers
Stage F - quick agitation phase : mixing
Stage G - slow agitation phase (floc formation) 40 rpm for 5 minutes
Stage H - sedimentation phase (stop agitation) settle for 10 minutes
Stage I - take supernatant samples in order to measure turbidity
Remarks:
These two procedures are just examples that must be adapted to the conditions found in the treatment plants.
The jar-test has been shown to reproduce in the laboratory the similar conditions specific to different treatment
plants.
Consequently, by using different agitation times, rapid or slow, or different sedimentation times, the jar-test method pinpoints the dosages of coagulant or flocculant necessary to obtain the correct quality of water.
Results to be Measured
- Size of flocs: visual appreciation of size and growth of flocs during agitation phase
- Turbidity: of supernatant during sedimentation phase curves: turbidity = f (coagulant dosage) and turbidity = f (time of sedimentation)
- Organic materials: of supernatant after sedimentation
- Alkalinity, pH, residual Al
Features:
| Specifications: |
Index: |
| Appearance: |
Off-White Granular Powder |
| Ionic Charge: |
Anionic/ Cationic/ Nonionic |
| Particle Size: |
20-100 mesh |
| Molecular Weight: |
5-22 million |
| Anionic Degree: |
5%-60% |
| Solid Content: |
89% Minimum |
| Bulk Density: |
About 0.8 |
| Specific Gravity at 25°C: |
1.01-1.1 |
| Recommended Working Concentration: |
0.1-0.5% |
| PH Value: |
4-9 |
| Storage Temperature (°C): |
0 - 35 |
PAM Packing:
25kg/plastic enhanced paper bags with inner plastic bag, 25kg/PE bags
PAM Solution make up:
Solution should be made up at 0.1-0.3% solid. Make-up water temerature should be between 10
oC to 40
oC for optimum product performance. Following dispersion into agitated water, stirring should be continue for about an hour. The liquid polyacrylamide are stable for one week.
Audited Supplier 
){kind=link}
){kind=link}