anionic polyacrylamide(flocculant) used for all kinds in brazil

anionic polyacrylamide(flocculant) used for all kinds in brazil
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  • How is an anionic polyacrylamide flocculant synthesized?
  • In this study, an anionic polyacrylamide flocculant was synthesized by ultrasonic initiated template copolymerization (USTP), using sodium allylsulfonate (SAS) and acrylamide (AM) as monomers, poly diallyl dimethyl ammonium chloride (polyDADMAC) as template, and 2,2′-azobis [2- (2-imidazolin-2-yl) propane] dihydrochloride (VA-044) as initiator.
  • What spectroscopy is used to identify anionic polyacrylamide flocculant?
  • The anionic polyacrylamide (APAM-T) flocculant was characterized by Fourier transform infrared spectroscopy (FTIR), 1 H nuclear magnetic resonance spectroscopy ( 1 H NMR), and scanning electron microscopy (SEM). Furthermore, the X-ray photoelectron spectroscopy (XPS) was conducted to measure the elemental composition.
  • Does anionic polyacrylamide improve coagulation-flocculation process?
  • Aguilar, M. I. et al. Improvement of coagulation-flocculation process using anionic polyacrylamide as coagulant aid. Chemosphere 58, 47–56 (2005). Muller, G., Fenyo, J. C. & Selegny, E. High molecular weight hydrolyzed polyacrylamides.
  • How effective is flocculant based on emulsion polymerization?
  • As an example, Fig. 3 a displays the dairy effluent and effluent condition at a dose of 53 mg/L (flocculant based on PAM tailored made with inverse emulsion polymerization); clearly, flocculant has been successful in removing “soft particles” from staying suspended in the water.