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Performance of three microalgal strains in biogas slurry purification and biogas upgrade in response to various mixed light-emitting diode light wavelengths

文献类型： 外文期刊

作者： Zhao, Yongjun 1 ; Sun, Shiqing 1 ; Hu, Changwei 2 ; Zhang, Hui 1 ; Xu, Jie 1 ; Ping, Lifeng 3 ;

作者机构： 1.Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China

2.Linyi Univ, Shandong Prov Key Lab Water & Soil Conservat & En, Linyi 276005, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Qual & Standard Agroprod, Hangzhou 310021, Zhejiang, Peoples R China

关键词： CO2 removal;Biogas slurry;Microalgae;Nutrient removal;Mixed wavelength ratio

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

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收录情况： SCI

摘要： The three microalgal strains were cultivated, namely, Chlorella vulgaris, Scenedesmus obliquus, and Neochloris oleoabundans, by applying mixed light-emitting diode wavelength treatments to biogas slurry in a photobioreactor bag. This study aims to compare the growth and nutrient removal efficiency of the algae and determine their roles for biogas upgrading. At red: blue = 5:5, S. obliquus and C. vulgaris efficiently removed COD and TP, respectively. S. obliquus demonstrated high N removal efficiency at red: blue = 7:3. The same strain significantly improved removal capacity for all nutrients compared with C. vulgaris and N. oleoabundans, particularly at red: blue = 5:5, 7:3, and 3:7. For biogas upgrade, CH4 contents were higher than 75% (v/v) for all strains. The algae exhibited particularly good CH4 enrichment at red: blue = 7:3, 5:5. Results show that microalgal biomass production offers real opportunities for addressing issues, such as nutrient reduction, CO2 removal, and biogas enrichment. (C) 2015 Elsevier Ltd. All rights reserved.

  • 相关文献

[1]Performance of CO2 concentrations on nutrient removal and biogas upgrading by integrating microalgal strains cultivation with activated sludge. Sun, Shiqing,Ge, Zhigang,Zhao, Yongjun,Zhang, Hui,Hu, Changwei,Ping, Lifeng.

[2]Effect of light intensity on the capability of different microalgae species for simultaneous biogas upgrading and biogas slurry nutrient reduction. Ouyang, Yan,Ouyang, Yan,Zhao, Yongjun,Sun, Shiqing,Hu, Changwei,Ping, Lifeng.

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