flocculation using polyacrylamide polymers for fresh in china

flocculation using polyacrylamide polymers for fresh in china
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  • Does pH affect the flocculation behavior of polyacrylamides?
  • Despite an evident impact of pH alterations noticed on the flocculation behavior of polyacrylamides in microalgae medium in previous studies, Nguyen et al. reported minimum pH effects in the range of 6–9 for freshwater microalgae Chlorella vulgaris and marine microalgae Phaeodactylum tricornutum cultures.
  • What are polyacrylamide based flocculants?
  • Polyacrylamide-based flocculants constitute the most important group of water-soluble polymers commercially applied in harvesting freshwater and marine microalgae from their suspensions. This is primarily due to the high reactivity, hydrophilic nature and relatively low costs associated with their monomer acrylamide .
  • How does microalgae culture affect flocculation performance of polyacrylamides?
  • High cell densities in microalgae cultures improved the flocculation performance of polyacrylamides. The pH of the culture influenced the flocculation performance by modifying the microalgae cell surface charge and the chain configuration of the polyacrylamides.
  • Why is polyacrylamide-microalgae flocculation important?
  • Flocculation is the most versatile, energy-efficient and cost-efficient harvesting process. Polyacrylamides exhibit high harvesting performance at different operation scales. Comprehensive analysis of polyacrylamide-microalgae flocculation was presented. Properties of polyacrylamide and microalgae culture influence the flocculation process.