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    2021-2-26 · Polyacrylamide is a high molecular polymer. Specializing in the treatment of various difficult-to-treat wastewater and the treatment of sludge dewatering. (Sludge dewatering generally uses cationic polyacrylamide) It is widely used in municipal sewage and sludge treatment in the paper-making printing and dyeing industry.

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    2019-12-1 · Three commercial cationic (PAM + S,τ40), nonionic (PAM ° S) and anionic (PAM − S,τ40) polyacrylamides (PAMs) with a medium chain length produced by the SNF group (Andrézieux, France) were used ().PAM + S,τ40 and PAM − S,τ40 have a charge density of 40%. The positive and negative charge of PAM + S,τ40 and PAM − S,τ40 was balanced by Cl − and Na +, respectively.

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    2009-9-5 · The reaction temperature is another important parameter in hydrolytic reaction. The reaction was carried out at 55, 60 and 65 °C, and the other variables were kept constant.As illustrated in Fig. 4, hydrolysis degree increased with the rise of temperature at 55, 60 and 65. °C.. The changes were explained as follows: at low temperature, polymer chains could not stretch well and the hydrolysis ...

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    2020-11-26 · Polyacrylamide is a water-soluble synthetic polyelectrolyte which consists of repeating units (forming a chain structure and containing hydrophilic groups). Due to the different nature of the groups present in the macromolecules, polyacrylamides can be divided into nonionic, anionic, and cationic ones.

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