Related Experiment Video
Updated: Mar 15, 2026

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
Published on: August 14, 2020
Importance of controlling pH-depended dissolved inorganic carbon to prevent algal bloom outbreaks
Na Liu1, Yixuan Yang2, Feng Li1
1Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan 411105, PR China.
Abstract:
This study investigated effects of pH-depended inorganic carbon (IC) species and pH on algal growth in the sewage simulation system, and fruitfully discussed the relationships among IC, pH and algal growth by the Monod kinetics. Results showed HCO3(-) significantly increased algal growth by 3.17-6.52 times than that of CO3(2-) and/or glucose when the value of pH was in the range of 8.0-9.5, and also the preferentially utilized indicated by the affinity coefficient (Kp) of HCO3(-), CO3(2-) and glucose (0.17, 15.14 and 31.22, respectively). Meanwhile, the same pH range facilitated HCO3(-) to become a dominated species (e.g., 48.80-93.19% of total IC). More importantly, good linear correlations pairwise existed among pH, IC species and algae growth. These results suggested pH plays a critical role in regulation of IC species and algae growth, which would be an efficient method to control the IC discharge from sewage effluents and weaken bloom outbreak.
More Related Videos
Related Concept Videos
The Phosphorus Cycle
Factors Affecting Solubility
Primary Production
Red Algae
Green Algae
Metabolism of Chemolithotrophs

