Harvesting Baltic Microalgae Chlorella vulgaris BA-167 Using Coagulant Flokor 1.2A via Static Sedimentation Under Auto- and Targeted Flocculation

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(2), P. 949 - 949

Published: Jan. 19, 2025

High dewatering costs, resulting from the harvesting and separation of microalgae cultivation medium, pose a significant challenge to large-scale commercial production algae-based products, accounting for 20–60% total expenses. This study presents research findings on recovery Baltic green Chlorella vulgaris BA-167 water under static sedimentation conditions, evaluating its potential as cost-effective method. The investigates effect suspension concentration kinetics efficiency both autoflocculation targeted flocculation using Flokor 1.2A coagulant, which is commonly employed in industrial treatment processes Poland. novelty this lies application new coagulant explore cultivated laboratory conditions. results demonstrate strong correlation between algae removal rate their initial suspension, within range 0.375–2.380 g/L. Under final minimum liquid after ranged 0.078 0.148 g/L, corresponding concentrations 0.960 g/L 0.615 respectively. Experimental indicate that combining with significantly increases efficiency. facilitates coagulation agglomeration cells, promoting formation larger aggregates (flocs) ranging 20 μm 690 μm, settle more easily during gravity-driven sedimentation. Within (CF) 0.01–0.36 time was reduced by 3–7 times, exceeded 92%. greatest reductions occurred 0.12 0.17 algae, achieving maximum efficiencies 83.2% 92.9%, These represent 2.02–2.53-fold improvement over autoflocculation.

Language: Английский

Hybrid Process Technologies for Sustainable Water Decontamination

Published: Jan. 1, 2025

Language: Английский