Cationic Polyacrylamide:
1)High efficient flocculant
2)Free samples are available
3)Stable chemical pproperty
Polyacrylamide (PAM)
Cationic polyacrylamide
is the copolymerization between cationic monomer (DM, DMC, DMAEMA DMDAAC, etc) and acrylamide, this kind of white small granule or powder through prilling, drying and crushing. The molecular weight of cationic PAM is usually lower than anionic or nonionic polymers, their clarify performance mainly obtained through charge neutrality effect.
Usage of the product
The main functions of this kind of flocculant are to flocculant negative charged colloid; it can remove turbidity, decoloring and so on. Suitable for the wastewater with organic colloid content. Such as dyeing, papermaking, foodstuff, aquatic products processing and other industrial wastewater, and sludge dewatering in city underground water treatment craft, etc. Cities and industrial sewage usually activated sludge treatment method; biochemical sludge is often the colloid with strong hydrophilism. It is difficult to take off the containing water. The good dehydration effect will be received if you use cationic PAM flocculant.
Product technical data:
Name
MolecularWeight(ten thousand)
Ion degrees(%)
Solid Content(%)
remnant
list %
hydrolysis
Dissolve
Time
(min)
CPAM
------ ----
10-50
≥90
≤0.05
20-25
≤40
APAM
600-2000
--- --
≥90
≤0.05
20-30
≤60
Cationic polyacrylamide copolymers (PAMs) are utilized for muck dewatering in civil waste water treatment and might enter the earth by spreading of the slop on agrarian land. Concern has been communicated since little is thought about the corruption of PAMs in soils. To get definite data on the polymer's destiny in the dirt compartment, the corruption of 14C-radiolabelled PAM in an open air lysimeter was examined.
ReplyDeleteResults
No plant take-up and filtering of radioactivity was watched. There was for all intents and purposes no vertical development of polymer and no change items found toward the finish of the investigation. For the main 10 cm soil layer, a mass equalization was set up all through the investigation. About 10% of connected radioactivity was not extractable from soil even with a grid dangerous technique, and this was closed to be bound buildup. Portrayal of extractable radioactivity by methods for GPC-examination demonstrated a huge lessening of the sub-atomic load of the PAM with time.
The lessening in atomic weight shows a breakdown of the polymer spine (the C– C-chain), and is thought Cationic Polyacrylamide to be essential debasement. The all out radioactivity content in the 10 cm best soil layer was evaluated at regular intervals over a time of 3 years. The outcomes demonstrate a critical diminishing of the all out radioactivity after some time and this is characterized as extreme debasement following the meaning of OECD and EPA. In light of the information, a half-life time of 2.0 × 103 days and a rate consistent of 0.00035/day were determined. With a χ2 of 12.0 the consequences of the computation are along these lines legitimate and solid. The rate steady demonstrates a mineralization of 22.5% inside a time of 2 years dependent on the all out recouped radioactivity. This half-life time is exclusively founded on mineralization and does not consider the corruption of the polymer spine, hydrolysis of the side chains, joining into the dirt grid, and along these lines is a traditionalist methodology.