blufloc mining flocculant polyacrylamide/view mining in saudi arabia

blufloc mining flocculant polyacrylamide/view mining in saudi arabia
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  • Can a magnetic polyacrylamide based flocculant harvest microalgae?
  • In a novel attempt, Wang et al. studied the synthesis of a magnetic polyacrylamide-based flocculant using iron oxide and 0.1 mg/mL of a cationic polyacrylamide. The resulting magnetic polyacrylamide was tested for its harvesting efficiency on cultures of two microalgae species, namely Botryococcus braunii and Chlorella ellipsoidea.
  • 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 .
  • Can polyacrylamides be grafted with bio-based flocculants?
  • Successfully grafting polyacrylamides with bio-based flocculants (e.g. starch, polysaccharides) could enhance the biodegradability of the flocculants without compromising on the high flocculation performance owing to the presence of polyacrylamides .
  • 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.