Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production
Bio-treatment of anaerobically treated swine wastewater (ADSW) mediated by microalgae has been deemed as a promising strategy. In the present study, six microalgal strains were used to conduct batch experiments in 0~100% ADSW in order to evaluate their potentials for nutrient removal and biodiesel p...
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MDPI AG
2021-11-01
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| Series: | Microorganisms |
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| Online Access: | https://www.mdpi.com/2076-2607/9/12/2469 |
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| author | Zhihui Chen Yunhua Xiao Tan Liu Mingmin Yuan Gang Liu Jun Fang Bo Yang |
| author_facet | Zhihui Chen Yunhua Xiao Tan Liu Mingmin Yuan Gang Liu Jun Fang Bo Yang |
| author_sort | Zhihui Chen |
| collection | DOAJ |
| description | Bio-treatment of anaerobically treated swine wastewater (ADSW) mediated by microalgae has been deemed as a promising strategy. In the present study, six microalgal strains were used to conduct batch experiments in 0~100% ADSW in order to evaluate their potentials for nutrient removal and biodiesel production. Two strains, <i>Chlorella vulgaris</i> FACHB-8 and <i>Chlorella</i> sp. FACHB-31, were selected based on their better growth performances, higher tolerance to wastewater (up to 100%), and better nutrient removal abilities. The capacity of each strain to remove TN, TP, NH<sub>4</sub><sup>+</sup>-N, as well as lipid production and biomass composition in 100% ADSW were further examined. After 15 days of culture, 87.68~89.85%, 92.61~93.68%, and 97.02~97.86% of the nitrogen, phosphorus, and ammonia nitrogen were removed by <i>Chlorella</i> sp. FACHB-31 and <i>C. vulgaris</i> FACHB-8. Their lipid content and lipid productivities were 29.63~33.33% and 18.91~23.10 mg L<sup>−1</sup> d<sup>−1</sup>, respectively. Proteins were both the major biomass fraction followed by lipids and then carbohydrates. Their fatty acid profiles both mainly consisted of C-16:0, C-18:1, C-18:0, and C-18:2. Taken together, our results suggest that <i>C. vulgaris</i> FACHB-8 and <i>Chlorella</i> sp. FACHB-31 are potential candidates for biodiesel production by using ADSW as a good feedstock. |
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| last_indexed | 2024-03-10T03:32:41Z |
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| spelling | doaj.art-d06e925419474100a868406614c321792023-11-23T09:38:26ZengMDPI AGMicroorganisms2076-26072021-11-01912246910.3390/microorganisms9122469Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids ProductionZhihui Chen0Yunhua Xiao1Tan Liu2Mingmin Yuan3Gang Liu4Jun Fang5Bo Yang6Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410125, ChinaHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410125, ChinaHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410125, ChinaHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410125, ChinaHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410125, ChinaHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410125, ChinaHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410125, ChinaBio-treatment of anaerobically treated swine wastewater (ADSW) mediated by microalgae has been deemed as a promising strategy. In the present study, six microalgal strains were used to conduct batch experiments in 0~100% ADSW in order to evaluate their potentials for nutrient removal and biodiesel production. Two strains, <i>Chlorella vulgaris</i> FACHB-8 and <i>Chlorella</i> sp. FACHB-31, were selected based on their better growth performances, higher tolerance to wastewater (up to 100%), and better nutrient removal abilities. The capacity of each strain to remove TN, TP, NH<sub>4</sub><sup>+</sup>-N, as well as lipid production and biomass composition in 100% ADSW were further examined. After 15 days of culture, 87.68~89.85%, 92.61~93.68%, and 97.02~97.86% of the nitrogen, phosphorus, and ammonia nitrogen were removed by <i>Chlorella</i> sp. FACHB-31 and <i>C. vulgaris</i> FACHB-8. Their lipid content and lipid productivities were 29.63~33.33% and 18.91~23.10 mg L<sup>−1</sup> d<sup>−1</sup>, respectively. Proteins were both the major biomass fraction followed by lipids and then carbohydrates. Their fatty acid profiles both mainly consisted of C-16:0, C-18:1, C-18:0, and C-18:2. Taken together, our results suggest that <i>C. vulgaris</i> FACHB-8 and <i>Chlorella</i> sp. FACHB-31 are potential candidates for biodiesel production by using ADSW as a good feedstock.https://www.mdpi.com/2076-2607/9/12/2469wastewater treatmentmicroalgaenutrient removallipidbiodiesel<i>Chlorella</i> |
| spellingShingle | Zhihui Chen Yunhua Xiao Tan Liu Mingmin Yuan Gang Liu Jun Fang Bo Yang Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production Microorganisms wastewater treatment microalgae nutrient removal lipid biodiesel <i>Chlorella</i> |
| title | Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production |
| title_full | Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production |
| title_fullStr | Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production |
| title_full_unstemmed | Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production |
| title_short | Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production |
| title_sort | exploration of microalgal species for nutrient removal from anaerobically digested swine wastewater and potential lipids production |
| topic | wastewater treatment microalgae nutrient removal lipid biodiesel <i>Chlorella</i> |
| url | https://www.mdpi.com/2076-2607/9/12/2469 |
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