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| Main Authors: | , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Biology
2025
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41007301/ |
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| _version_ | 1868266149455593472 |
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| author | Ma, Peizhen Li, Xiaoqin Wu, Biao Liu, Zhihong Li, Zhuanzhuan Sun, Xiujun Zhou, Liqing Du, Meirong |
| author_facet | Ma, Peizhen Li, Xiaoqin Wu, Biao Liu, Zhihong Li, Zhuanzhuan Sun, Xiujun Zhou, Liqing Du, Meirong Ma, Peizhen Li, Xiaoqin Wu, Biao Liu, Zhihong Li, Zhuanzhuan Sun, Xiujun Zhou, Liqing Du, Meirong |
| collection | PubMed - marine biology |
| contents | Evaluating Growth and Nitrogen and Phosphorus Removal of Four Microalgae in Different Nutrient Concentrations. Ma, Peizhen Li, Xiaoqin Wu, Biao Liu, Zhihong Li, Zhuanzhuan Sun, Xiujun Zhou, Liqing Du, Meirong The environmental problems brought about by factory-based aquaculture have become increasingly prominent. Reducing nitrogen and phosphorus concentrations in tailwater has become the key to tailwater management. In order to assess the potential of microalgae in removing nitrogen and phosphorus ions from aquaculture wastewater, four microalgae species, i.e., sp., , , and , were used in this study, and their growth and nitrogen and phosphorus removal rates in four nutrient concentrations of simulated aquaculture wastewater were systematically evaluated. After 15 days of cultivation, the cell counts of all four types of microalgae increased. Three species, i.e., sp., , and , grew best in high PO and low NH medium, whereas possessed best growth in low PO and high NH medium. The removal rate of PO, NH, NO, and NO by four microalgae species exceeded 82.64%, 89.06%, 59.27%, and 42.15%, respectively, even though the four microalgae had different performance in the removal of nitrogen and phosphorus. All microalgae in the low-phosphorus groups removed PO at significantly lower rates than those in the high-phosphorus groups, while high NH removal rates were observed in all four microalgae groups. Moreover, in phosphorus-limited conditions, four microalgae exhibit lower removal rates of NO when nitrogen content was high. The chlorophyll a contents of microalgae in four culture media strictly corresponded to their final cell densities. exhibited the highest intracellular polysaccharide accumulation in high PO and low NH type medium, whereas demonstrated the strongest protein synthesis capacity in high PO and low NH medium. The activities of acid phosphatase in all microalgae were higher under phosphorus-deficient conditions than phosphorus-sufficient conditions. Our results might provide useful references for microalgae selection in the treatment of different aquaculture wastewater conditions. |
| format | Artículo científico |
| id | pubmed_41007301 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Biology |
| record_format | pubmed |
| spellingShingle | Evaluating Growth and Nitrogen and Phosphorus Removal of Four Microalgae in Different Nutrient Concentrations. Ma, Peizhen Li, Xiaoqin Wu, Biao Liu, Zhihong Li, Zhuanzhuan Sun, Xiujun Zhou, Liqing Du, Meirong Evaluating Growth and Nitrogen and Phosphorus Removal of Four Microalgae in Different Nutrient Concentrations. Ma, Peizhen Li, Xiaoqin Wu, Biao Liu, Zhihong Li, Zhuanzhuan Sun, Xiujun Zhou, Liqing Du, Meirong The environmental problems brought about by factory-based aquaculture have become increasingly prominent. Reducing nitrogen and phosphorus concentrations in tailwater has become the key to tailwater management. In order to assess the potential of microalgae in removing nitrogen and phosphorus ions from aquaculture wastewater, four microalgae species, i.e., sp., , , and , were used in this study, and their growth and nitrogen and phosphorus removal rates in four nutrient concentrations of simulated aquaculture wastewater were systematically evaluated. After 15 days of cultivation, the cell counts of all four types of microalgae increased. Three species, i.e., sp., , and , grew best in high PO and low NH medium, whereas possessed best growth in low PO and high NH medium. The removal rate of PO, NH, NO, and NO by four microalgae species exceeded 82.64%, 89.06%, 59.27%, and 42.15%, respectively, even though the four microalgae had different performance in the removal of nitrogen and phosphorus. All microalgae in the low-phosphorus groups removed PO at significantly lower rates than those in the high-phosphorus groups, while high NH removal rates were observed in all four microalgae groups. Moreover, in phosphorus-limited conditions, four microalgae exhibit lower removal rates of NO when nitrogen content was high. The chlorophyll a contents of microalgae in four culture media strictly corresponded to their final cell densities. exhibited the highest intracellular polysaccharide accumulation in high PO and low NH type medium, whereas demonstrated the strongest protein synthesis capacity in high PO and low NH medium. The activities of acid phosphatase in all microalgae were higher under phosphorus-deficient conditions than phosphorus-sufficient conditions. Our results might provide useful references for microalgae selection in the treatment of different aquaculture wastewater conditions. |
| title | Evaluating Growth and Nitrogen and Phosphorus Removal of Four Microalgae in Different Nutrient Concentrations. |
| url | https://pubmed.ncbi.nlm.nih.gov/41007301/ |