Optimization of microalgal growth and cultivation parameters for increasing bioenergy potential: Case study using the oleaginous microalga Chlorella pyrenoidosa Chick (IPPAS C2)

Sukačová, Kateřina; Búzová, Diana; Trávníček, Petr; Červený, Jan; Vítězová, Monika; Vítěz, Tomáš

doi:10.1016/j.algal.2019.101519

Cited by 12 publications

(11 citation statements)

References 48 publications

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“…In the present study, values were much lower (0.032 and 0.068 g L −1 day −1 for microalgae grown in fish and cattle wastewater, respectively). Other studies also obtained higher biomass productivities (Sukačová et al, 2019;Wild et al, 2019). Our productivity values were close to those obtained by Wild et al (2019) under CO 2deficient conditions and by Moreno-Garcia et al (2019) in a blend of wastewaters.…”

Section: Introductionsupporting

confidence: 87%

“…Previous studies reported similar findings (Moreno-Garcia et al, 2019;Wild et al, 2019). Wild et al (2019) and Sukačová et al (2019) reported biomass productivities of 0.22 and 0.23 g L −1 day −1 , respectively, for Chlorella sp. cultivated in different concentrations of nutrients.…”

Section: Introductionsupporting

confidence: 76%

“…Microalgas. potential as nutrient-rich cultivation media and can be used in microalgae production units as a strategy to avoid the discharge of untreated wastewater into the environment (Sukačová et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Chlorella vulgaris is an important photosynthetic microalgal species with a variety of application possibilities. It has been used for the production of biofuel biomass, fertilizer, feed, and food (Sukačová et al, 2019;Wild et al, 2019).…”

mentioning

confidence: 99%

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Biomass productivity of Chlorella vulgaris cultivated in fish and dairy cattle wastewaters

Nicolau

Souza

Arroyo

et al. 2021

Semina: Ciênc. Agrár.

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The biomass productivity and nutrient composition of microalgae, such as Chlorella vulgaris, depend on the cultivation process and the nutrient content of growth media. Thus, in this study aimed to investigate the biomass productivity of C. vulgaris cultivated in fish and dairy cattle wastewaters. Thirty wastewater samples (2.5 L) were collected from system of production. Microalgae were cultivated in Erlenmeyer flasks containing 10 mL of microalgae and 1,790 mL of wastewater under constant light of 5,000 lux for 16 days at 25 ± 2.0 °C. Wastewater samples differed in composition. Biomass productivity was 47 % higher (P<0.0001) in dairy cattle than in fish wastewater, reaching 67.61 g m?3 day?1 (dry matter basis, DM) when compared by Student’s t-test (P<0.05). Cultivation media also had an effect on biomass chemical composition. The C. vulgaris grown in dairy cattle wastewater was higher in crude protein and ash contents (359.6 g kg?1 DM and 230.4 g kg?1 DM, respectively), whereas microalgae grown in fish wastewater had higher nitrogen-free extract content (347.8 g kg?1 DM). Crude fat content did not vary greatly (mean of 313.15 g kg?1 DM). The pH (8.0 – 8.7) and ammonia concentration (0.07 to 0.4 mg L?1) in fish wastewater was stable throughout the 16-day experimental period. In dairy wastewater, pH increased up (6.3 to 8.9) to the fourth day and remained constant thereafter, and ammonia concentration increased up (24.3 to 28.7 mg L?1) to the eighth day and then it declined (2.1 mg L?1). The C. vulgaris was successfully grown in both wastewaters, but productivity was higher in dairy cattle wastewater.

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Section: Introductionsupporting

confidence: 87%

Section: Introductionsupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Biomass productivity of Chlorella vulgaris cultivated in fish and dairy cattle wastewaters

Nicolau

Souza

Arroyo

et al. 2021

Semina: Ciênc. Agrár.

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“…In the FPA PBR, the cultivation conditions were controlled as follows: white light was set to 400 µmol m −2 s −1 (provided by LED panel at back side of the PBR, in ad-dition to day light penetrating front side), temperature was set to 25 • C and 3% CO 2 concentration in the air mixture was bubbled through the culture with flow rate of 2 L min −1 (0.08 L min −1 L culture −1 , according Sukačová et al [30]). All cultivations lasted for eight days.…”

Section: Cultivation Conditions and Experimental Designmentioning

confidence: 99%

Perspective Design of Algae Photobioreactor for Greenhouses—A Comparative Study

et al. 2021

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The continued growth and evolving lifestyles of the human population require the urgent development of sustainable production in all its aspects. Microalgae have the potential of the sustainable production of various commodities; however, the energetic requirements of algae cultivation still largely contribute to the overall negative balance of many operation plants. Here, we evaluate energetic efficiency of biomass and lipids production by Chlorella pyrenoidosa in multi-tubular, helical-tubular, and flat-panel airlift pilot scale photobioreactors, placed in an indoor environment of greenhouse laboratory in Central Europe. Our results show that the main energy consumption was related to the maintenance of constant light intensity in the flat-panel photobioreactor and the culture circulation in the helical-tubular photobioreactor. The specific power input ranged between 0.79 W L−1 in the multi-tubular photobioreactor and 6.8 W L−1 in the flat-panel photobioreactor. The construction of multi-tubular photobioreactor allowed for the lowest energy requirements but also predetermined the highest temperature sensitivity and led to a significant reduction of Chlorella productivity in extraordinary warm summers 2018 and 2019. To meet the requirements of sustainable yearlong microalgal production in the context of global change, further development towards hybrid microalgal cultivation systems, combining the advantages of open and closed systems, can be expected.

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