Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular Bioeconomy
Since sources of clean water are limited, industrial wastewaters are available and utilization of biomass as a renewable energy source is increasing; therefore, wastewater could be used as a growth medium for the production of biomass. Such an approach is directly connected to the sustainable circul...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/20/10299 |
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| author | Magdalena Zabochnicka |
| author_facet | Magdalena Zabochnicka |
| author_sort | Magdalena Zabochnicka |
| collection | DOAJ |
| description | Since sources of clean water are limited, industrial wastewaters are available and utilization of biomass as a renewable energy source is increasing; therefore, wastewater could be used as a growth medium for the production of biomass. Such an approach is directly connected to the sustainable circular bioeconomy. The main aim of the present study was to evaluate the potential application of industrial wastewater for cultivation of <i>C. vulgaris</i> and <i>S. armatus</i>. This study was carried out in order to: (i) assess the influence of wastewater on the activity of microalgae; (ii) assess batch and repeated fed-batch culture cultivation techniques; and (iii) assess cultivation of microalgae in suspension and immobilized on alginate beads. It was demonstrated that microalgae can be cultivated in wastewater contaminated with inorganic and organic chemical compounds in autotrophic conditions, batch culture or repeated fed-batch culture, and also in the form of suspension as well as being immobilized on alginate beads. The growth rate of microalgae in samples with initial algal culture concentrations of 100 g/L was as follow: 2.3 ± 0.01 d<sup>−1</sup>–3.8 ± 0.03 d<sup>−1</sup> for <i>C. vulgaris</i> and 2.2 ± 0.02 d<sup>−1</sup>–4.0 ± 0.06 d<sup>−1</sup> for <i>S. armatus</i>. In samples with initial algal culture concentrations of 50 g/L the growth rate of microalgae (μ) was as follow: 1.2 ± 0.01 d<sup>−1</sup>–2.2 ± 0.02 d<sup>−1</sup> for <i>C. vulgaris</i> and 1.3 ± 0.02 d<sup>−1</sup>–2.4 ± 0.05 d<sup>−1</sup> for <i>S. armatus</i>. Cultivation of microalgae in industrial wastewater has more advantages than cultivation carried out in clean water due to lower costs and protection of natural resources. |
| first_indexed | 2024-03-09T20:47:27Z |
| format | Article |
| id | doaj.art-388b44d74095439092c5dbd8320db937 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T20:47:27Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-388b44d74095439092c5dbd8320db9372023-11-23T22:42:21ZengMDPI AGApplied Sciences2076-34172022-10-0112201029910.3390/app122010299Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular BioeconomyMagdalena Zabochnicka0Faculty of Infrastructure and Environment, Czestochowa University of Technology, Brzeźnicka 60a, 42-200 Czestochowa, PolandSince sources of clean water are limited, industrial wastewaters are available and utilization of biomass as a renewable energy source is increasing; therefore, wastewater could be used as a growth medium for the production of biomass. Such an approach is directly connected to the sustainable circular bioeconomy. The main aim of the present study was to evaluate the potential application of industrial wastewater for cultivation of <i>C. vulgaris</i> and <i>S. armatus</i>. This study was carried out in order to: (i) assess the influence of wastewater on the activity of microalgae; (ii) assess batch and repeated fed-batch culture cultivation techniques; and (iii) assess cultivation of microalgae in suspension and immobilized on alginate beads. It was demonstrated that microalgae can be cultivated in wastewater contaminated with inorganic and organic chemical compounds in autotrophic conditions, batch culture or repeated fed-batch culture, and also in the form of suspension as well as being immobilized on alginate beads. The growth rate of microalgae in samples with initial algal culture concentrations of 100 g/L was as follow: 2.3 ± 0.01 d<sup>−1</sup>–3.8 ± 0.03 d<sup>−1</sup> for <i>C. vulgaris</i> and 2.2 ± 0.02 d<sup>−1</sup>–4.0 ± 0.06 d<sup>−1</sup> for <i>S. armatus</i>. In samples with initial algal culture concentrations of 50 g/L the growth rate of microalgae (μ) was as follow: 1.2 ± 0.01 d<sup>−1</sup>–2.2 ± 0.02 d<sup>−1</sup> for <i>C. vulgaris</i> and 1.3 ± 0.02 d<sup>−1</sup>–2.4 ± 0.05 d<sup>−1</sup> for <i>S. armatus</i>. Cultivation of microalgae in industrial wastewater has more advantages than cultivation carried out in clean water due to lower costs and protection of natural resources.https://www.mdpi.com/2076-3417/12/20/10299cultivation of microalgaealginate beadsindustrial wastewatercircular bioeconomy |
| spellingShingle | Magdalena Zabochnicka Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular Bioeconomy Applied Sciences cultivation of microalgae alginate beads industrial wastewater circular bioeconomy |
| title | Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular Bioeconomy |
| title_full | Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular Bioeconomy |
| title_fullStr | Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular Bioeconomy |
| title_full_unstemmed | Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular Bioeconomy |
| title_short | Industrial Wastewater as a Growth Medium for Microalgal Biomass for a Sustainable Circular Bioeconomy |
| title_sort | industrial wastewater as a growth medium for microalgal biomass for a sustainable circular bioeconomy |
| topic | cultivation of microalgae alginate beads industrial wastewater circular bioeconomy |
| url | https://www.mdpi.com/2076-3417/12/20/10299 |
| work_keys_str_mv | AT magdalenazabochnicka industrialwastewaterasagrowthmediumformicroalgalbiomassforasustainablecircularbioeconomy |