Optimization of culture conditions of microalgae in an algal-bacterial system by response surface method
An algal-bacterial system was constructed to explore the effects of culture conditions on the growth of microalgae. On the basis of the results of single factor test, three factors including the agitating rate, the initial inoculation ratio of microalgae and bacteria, and the organic load of the was...
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| Format: | Article |
| Language: | English |
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Zhejiang University Press
2019-02-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2018.02.091 |
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| author | LUO Longzao ZENG Fanjian TIAN Guangming |
| author_facet | LUO Longzao ZENG Fanjian TIAN Guangming |
| author_sort | LUO Longzao |
| collection | DOAJ |
| description | An algal-bacterial system was constructed to explore the effects of culture conditions on the growth of microalgae. On the basis of the results of single factor test, three factors including the agitating rate, the initial inoculation ratio of microalgae and bacteria, and the organic load of the wastewater were optimizated by using the response surface method. The results showed that the microalgal growth was significantly affected by airtight condition, agitation rate, initial inoculation ratio and organic load of the culture system, and the microalgae grew better in the open culture system. The optimum condition by the response surface optimization was as follows: agitating rate of 1 574.29 r/min, inoculation ratio 150∶1 of bacteria-alga and organic load (chemical oxygen demand, COD) of 3 676.02 mg/L. After seven days of culture under the optimimum condition, the biomass of microalgae was 5.68 g/L, which was in accordance with the theoretically predicted value (5.69 g/L). The above results can lay a scientific basis for improving the resource recovery efficiency from wastewater by algal-bacterial system. |
| format | Article |
| id | doaj-art-369e791f538b4f65b09b7109082b606e |
| institution | Kabale University |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2019-02-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-369e791f538b4f65b09b7109082b606e2025-08-20T03:58:14ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552019-02-01459510110.3785/j.issn.1008-9209.2018.02.09110089209Optimization of culture conditions of microalgae in an algal-bacterial system by response surface methodLUO LongzaoZENG FanjianTIAN GuangmingAn algal-bacterial system was constructed to explore the effects of culture conditions on the growth of microalgae. On the basis of the results of single factor test, three factors including the agitating rate, the initial inoculation ratio of microalgae and bacteria, and the organic load of the wastewater were optimizated by using the response surface method. The results showed that the microalgal growth was significantly affected by airtight condition, agitation rate, initial inoculation ratio and organic load of the culture system, and the microalgae grew better in the open culture system. The optimum condition by the response surface optimization was as follows: agitating rate of 1 574.29 r/min, inoculation ratio 150∶1 of bacteria-alga and organic load (chemical oxygen demand, COD) of 3 676.02 mg/L. After seven days of culture under the optimimum condition, the biomass of microalgae was 5.68 g/L, which was in accordance with the theoretically predicted value (5.69 g/L). The above results can lay a scientific basis for improving the resource recovery efficiency from wastewater by algal-bacterial system.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2018.02.091microalgaealgal-bacterial systemculture conditionresponse surface methodoptimization |
| spellingShingle | LUO Longzao ZENG Fanjian TIAN Guangming Optimization of culture conditions of microalgae in an algal-bacterial system by response surface method 浙江大学学报. 农业与生命科学版 microalgae algal-bacterial system culture condition response surface method optimization |
| title | Optimization of culture conditions of microalgae in an algal-bacterial system by response surface method |
| title_full | Optimization of culture conditions of microalgae in an algal-bacterial system by response surface method |
| title_fullStr | Optimization of culture conditions of microalgae in an algal-bacterial system by response surface method |
| title_full_unstemmed | Optimization of culture conditions of microalgae in an algal-bacterial system by response surface method |
| title_short | Optimization of culture conditions of microalgae in an algal-bacterial system by response surface method |
| title_sort | optimization of culture conditions of microalgae in an algal bacterial system by response surface method |
| topic | microalgae algal-bacterial system culture condition response surface method optimization |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2018.02.091 |
| work_keys_str_mv | AT luolongzao optimizationofcultureconditionsofmicroalgaeinanalgalbacterialsystembyresponsesurfacemethod AT zengfanjian optimizationofcultureconditionsofmicroalgaeinanalgalbacterialsystembyresponsesurfacemethod AT tianguangming optimizationofcultureconditionsofmicroalgaeinanalgalbacterialsystembyresponsesurfacemethod |