Received date: 2004-11-25
Online published: 2010-10-01
The synthesis of the amphoteric polymer AANa - MATMC has been studied.First,the cationic polymer AM- MATMC is synthetized. The optimum of synthesis of cationic polymer AM-MATMC is showed that when mole ratio of AM/MATMC is 9/1, quantity of primer is 0.05%(the quantity of primer/the total quantity of monomer,temperature is 55 ℃,and the polymeric time is 7 h. Then,the cationic polymer AM- MATMC is hydrolyzed partly in the presence of the sodium carbonate. The yield of the amphoteric polymer AANa-MATMC in the hydrolyzed of the cationic polymer AM- MATMC is the highest (98.2%),when the temperature of the hydrolization is 60 ℃, the time of the hydrolization is 90 min, the mole ratio of the sodium carbonate/acrylamide group is 1/8. The performance of the amphoteric polymer AANa- MATMC is researched by the tests of chemical oxygen demand(COD) , transmilitivity and moisture content of filtered sludge. The tests indicate that the performances of the amphoteric polymer AANa- MATMC are superior to the same kind products in domestic market. The moisture content of filtered sludge treated with amphoteric polymer AANa- MATMC is less than that treated with imported cationic acrylamide. The amphoteric polymer has fine flocculability.
Key words: cationic polymer; amphoteric polymer; flocculant
Zhou Genghua, Xing Huimin, Li Zhenghui . Synthesis amphoteric polymer as flocculant and its performances[J]. Industrial Water Treatment, 2005 , 25(8) : 20 -23 . DOI: 11894/1005-829x.2005.25(8).20
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