adsorption of anion polyacrylamide from aqueous solution in britain

adsorption of anion polyacrylamide from aqueous solution in britain
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  • Does anionic polyacrylamide cause system destabilization?
  • Thus, it can be stated that anionic polyacrylamide causes the system destabilization. The PAM adsorption effect on the goethite aggregate size was already visible during the sample preparation. With naked eye, it was noted that the polymer accelerates the mineral aggregation. The particle size measurements confirmed the visual observations.
  • Does polyacrylamide adsorb on the goethite surface?
  • The result analysis showed that polyacrylamide adsorbs on the goethite surface; however, its adsorption amount depends on the pH value. Due to the adsorbent–adsorbate electrostatic repulsion, the smallest number of macromolecules adsorbs at pH 9. The PAM adsorption affects the goethite surface charge and zeta potential values.
  • Does anionic polyacrylamide cause goethite system destabilization?
  • The polyacrylamide addition changes the goethite system stability. The absorbance noticed for the suspensions containing polymer was much lower. It was about 0.01, regardless of the pH value. Thus, it can be stated that anionic polyacrylamide causes the system destabilization.
  • Does anionic polyacrylamide accelerate goethite aggregation?
  • Regardless of pH value, anionic polyacrylamide accelerates the goethite aggregation which is caused by solid surface charge neutralization (pH 5) or bridging flocculation (pH 7 and 9). Adamski W (2000) Water purification system modeling.