mining high efficiency polymer polyacrylamide flocculant at ireland marketing

mining high efficiency polymer polyacrylamide flocculant at ireland marketing
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  • 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 .
  • Which polyacrylamide variant has the highest flocculation efficiencies?
  • Polyacrylamide variants 71,305 and 71,303 possessing low to medium charge densities and medium to high molecular weights offered the highest flocculation efficiencies of 85.3% and 89.9% at the lowest flocculant doses 3 mg/L and 4 mg/L, respectively.
  • Can cationic polyacrylamides trigger microalgae flocculation?
  • Effective flocculation performance may be achieved at salinity concentrations below 5 g/L . The diminishing competence of cationic polyacrylamides to trigger microalgae flocculation in marine and brackish media is attributed to the coiling of polymer chains under high ionic strength conditions.
  • 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.