The principle of the use of polyacrylamide - CHINAFLOC
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The principle of the use of polyacrylamide
2015-11-18 09:39:09
CAS No.: 9003-05-8
Other Names: petroleum products
MF: (C3H5NO)n
EINECS No.: 231-673-0
Purity: 90%
Type: Other
Usage: Water Treatment Chemicals,Textile Auxiliary Agents,Coating Auxiliary Agents,Leather Auxiliary Agents,Paper Chemicals
Residual Monomer:: <0.05%
Molecular weight:: 5-24 million
Insoluble:: <0.5%
type:: petroleum products
Cetificate: ISO9001 ISO14001
Appearance: white granule/powder
Viscosity:: High Viscosity
Quality:: High quality
Degree of hydrolysis:: 6%-45%
Hydrolyzing degree: 10%-45%
The principle of the use of polyacrylamide
Polyacrylamide (PAM) cationic, anionic, amphoteric, non-ionic polyacrylamide
Polyacrylamide before use need to experiment first selection, selection of data, to practice on computer test again, and then for bulk purchase.
Polyacrylamide used as flocculant in water treatment, before use need to be carried out in accordance with the experimental data preparation, must fully stir to dissolve before adding the use, otherwise cannot perform its specific performance, completely dissolved liquid can be observed in the presence of undissolved particles, under normal circumstances should be transparent or close to the transparent liquid, such as a larger cluster phenomenon, should be clear in time, lest cause blockage dosing system.
Choose suitable for overtime, according to the experience of the Chinafloc before site operation, optimum flocculation reaction is put in water purification production 1/2 ~ 2/3 of the whole process, in principle is the need to give PAM product fully mixing time, can also be equipped with coagulation device to help achieve its flocculation.
Dosing quantity and ratio of products, we suggest the solution ratio not exorbitant, also should not be too big or too small, the dosage in order to guarantee uniform mixing, should use the most dilute concentrations. Polyacrylamide concentration is approximately 0.05%, is conducive to stir to dissolve and facilitate adding the use, and helps the coagulation effect is best.
For water treatment of polyacrylamide products, need the manufacturer has the authority test results and report, should adopt the high degree of polymerization of polyacrylamide as drinking water purification flocculant, its residual monomer content should be below 0.1 ~ 0.2%.
When used with inorganic flocculant, avoid by all means cannot be used together, on the cast a little need to keep a certain distance, is in commonly 10 meters above the best.