anionic polyacrylamide efficiency in goethite removal in saudi arabia

anionic polyacrylamide efficiency in goethite removal in saudi arabia
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  • Is polyacrylamide a flocculant compared to goethite?
  • The main aim of the study was to investigate the anionic polyacrylamide (PAM) efficiency as a flocculant relative to goethite particles. This mineral is a toxic waste produced during hydrometallurgical processes and, as a result, poses a threat to the environment.
  • 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.
  • Does polymer addition improve goethite removal from aqueous wastes?
  • It makes these parameters more negative. What is more regardless of pH value, the polymer addition contributes to clear aggregation of solid particles (suspension destabilization). Thus, PAM can be considered as a potential flocculant improving the goethite removal from aqueous wastes.