INDUSTRIAL WATER TREATMENT ›› 2013, Vol. 33 ›› Issue (7): 61-65.

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Preparation of polyacrylamide aqueous dispersion emulsion and its sludge dewatering capacity

Huang Zhen1,2,3, Shu Xin1,2,3, Ran Qianping1,2,3, Liu Jiaping1,2,3   

  1. 1. Jiangsu Research Institute of Building Science, Nanjing 210008, China;
    2. Jiangsu Bote New Materials Co., Ltd., Nanjing 211103, China;
    3. State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 211103, China
  • Revised:2013-04-07 Online:2013-07-20 Published:2013-07-25

聚丙烯酰胺水分散乳液的制备及污泥脱水性能研究

黄振1,2,3, 舒鑫1,2,3, 冉千平1,2,3, 刘加平1,2,3   

  1. 1. 江苏省建筑科学研究院, 江苏南京 210008;
    2. 江苏博特新材料有限公司, 江苏南京 211103;
    3. 高性能土木工程材料国家重点实验室, 江苏南京 211103
  • 作者简介:黄振(1986- ), 硕士。电话:15651987279,E-mail :huangzhen@cnjsjk.cn。

Abstract:

Cationic polyacrylamide (CPAM) has been prepared by dispersion polymerization of acrylamide (AM)and 2 -methylacryloylxyethl trimethyl ammonium chloride (DMC).The structure and forming mechanisms of the product are analyzed with Fourier-transform infrared spectroscopy,1H nuclear magnetic resonance spectroscopy and microscopy.The sludge dewatering efficacy is evaluated with home-made CPAM.The results show that the turbidity removing rate of supernatants reaches 96% and water ratio decreases to 68%,when CPAM concentration is 0.15%,its dosage is 0.005%-0.01% of the total amount of wet sludge,and sludge pH is 3-7.

Key words: cationic polyacrylamide, aqueous dispersion emulsion, dispersion polymerization, sludge dewatering

摘要:

通过丙烯酰胺(AM)与甲基丙烯酰氧乙基三甲基氯化铵(DMC)的分散聚合制得阳离子聚丙烯酰胺(CPAM)水分散乳液,通过红外光谱(FT-IR)、核磁共振(1HNMR)、光学显微镜分析了产物的结构与形成机理,并用自制CPAM对污泥脱水效果进行了评定。结果表明,当CPAM质量分数为0.15%,投加量为湿泥总量0.005%~0.01%,污泥pH为3~7时,上清液浊度去除率达96%,滤饼含水率降至68%。

关键词: 阳离子聚丙烯酰胺, 水分散乳液, 分散聚合, 污泥脱水

CLC Number: