TY - JOUR
T1 - Thermosynechococcus sp. CL-1 cultivation for Zn removal in swine wastewater with simultaneous CO2 fixation and macromolecules accumulation
AU - Narindri Rara Winayu, Birgitta
AU - Chen, Yi Chien
AU - Hsueh, Hsin Ta
AU - Chu, Hsin
N1 - Publisher Copyright:
© 2023
PY - 2023/8
Y1 - 2023/8
N2 - Treatment of swine wastewater via cultivation of photosynthetic microorganism is highly promising due to the benefits in nutrient utilization, cost reduction, high efficiency, and production of various bioproducts. Besides, photosynthetic microorganisms are also acknowledged for their high tolerance toward extreme growth conditions, including the presence of heavy metals. This study assessed the tolerance of Thermosynechococcus sp. CL-1 (TCL-1) in the cultivation using swine wastewater for CO2 fixation, Zn removal, and production of lipid, protein, and carbohydrate. Addition of 113.2 mM dissolved inorganic carbon was also set for simulation of almost saturated CO2 content in a chemical scrubbing wastewater after CO2 absorption process. Experiment was conducted in a 1 L flat panel photobioreactor for 12 h periods, under illumination of various light intensities, and compared with the performance in modified Fitzgerald medium. TCL-1 cultivation under 1000 μE/m2/s light intensity provided the optimum growth condition in swine wastewater which led to high biomass productivity (55.69 mg/L/h) and CO2 fixation rate (91.8 mg/L/h). TCL-1 in this cultivation also removed 62.5 % Zn content from swine wastewater and bioadsorption route was detected as the major elimination process. The rapid utilization of nitrogen compounds in swine wastewater resulted in the dominant production of protein reached to 59.5 ± 3.1%dwc.
AB - Treatment of swine wastewater via cultivation of photosynthetic microorganism is highly promising due to the benefits in nutrient utilization, cost reduction, high efficiency, and production of various bioproducts. Besides, photosynthetic microorganisms are also acknowledged for their high tolerance toward extreme growth conditions, including the presence of heavy metals. This study assessed the tolerance of Thermosynechococcus sp. CL-1 (TCL-1) in the cultivation using swine wastewater for CO2 fixation, Zn removal, and production of lipid, protein, and carbohydrate. Addition of 113.2 mM dissolved inorganic carbon was also set for simulation of almost saturated CO2 content in a chemical scrubbing wastewater after CO2 absorption process. Experiment was conducted in a 1 L flat panel photobioreactor for 12 h periods, under illumination of various light intensities, and compared with the performance in modified Fitzgerald medium. TCL-1 cultivation under 1000 μE/m2/s light intensity provided the optimum growth condition in swine wastewater which led to high biomass productivity (55.69 mg/L/h) and CO2 fixation rate (91.8 mg/L/h). TCL-1 in this cultivation also removed 62.5 % Zn content from swine wastewater and bioadsorption route was detected as the major elimination process. The rapid utilization of nitrogen compounds in swine wastewater resulted in the dominant production of protein reached to 59.5 ± 3.1%dwc.
UR - http://www.scopus.com/inward/record.url?scp=85163219347&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85163219347&partnerID=8YFLogxK
U2 - 10.1016/j.jwpe.2023.103927
DO - 10.1016/j.jwpe.2023.103927
M3 - Article
AN - SCOPUS:85163219347
SN - 2214-7144
VL - 54
JO - Journal of Water Process Engineering
JF - Journal of Water Process Engineering
M1 - 103927
ER -