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Effect of light intensity on the capability of different microalgae species for simultaneous biogas upgrading and biogas slurry nutrient reduction

文献类型： 外文期刊

作者： Ouyang, Yan 1 ; Zhao, Yongjun 3 ; Sun, Shiqing 3 ; Hu, Changwei 4 ; Ping, Lifeng 5 ;

作者机构： 1.Minidtry Environm Protect PeoplesRepubl China, Nanjing Inst Environm Sci, Nanjing 210042, Jiangsu, Peoples R China

2.Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing 210042, Jiangsu, Peoples R China

3.Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China

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

5.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Hangzhou 310021, Zhejiang, Peoples R China

关键词： CO2 removal;Dry weight;Light intensities;Microalgae;Nutrient reduction

期刊名称：INTERNATIONAL BIODETERIORATION & BIODEGRADATION （ 影响因子：4.32； 五年影响因子：4.719 ）

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收录情况： SCI

摘要： In this study, we investigated the ability of microalgae to remove biogas slurry nutrients and upgrade biogas simultaneously under various light-emitting diode light intensities. Three green algae, namely, Scenedesmus obliquus, Chlorella sp., and Selenastrum bibraianum, were selected and cultivated in photobioreactor bags. The capacity of each microalga to reduce the chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (M) of wastes was investigated. The growth rate and CO2 uptake of each microalga were also examined. Compared with S. bibraianum, S. obliquus and Chlorella sp. showed better combined results and were more suitable for simultaneous biogas upgrading and biogas effluent nutrient reduction. Results showed that the best results for biogas slurry nutrient reduction, CO2 removal, and upgrade effects were obtained from the treatment under moderate light intensity (150-170 mu mol m(-2) s(-1)) for S. obliquus. The highest reduction values of COD, TN, TI', dry weight, and CH4 concentration obtained were 93.08% +/- 4.62%, 84.12% +/- 437%, 86.76% +/- 4.58%, 465.31 +/- 19.44 mg L-1, and 94.41 +/- 3.16 (v/v), respectively. (c) 2015 Elsevier Ltd. All rights reserved.

  • 相关文献

[1]Performance of three microalgal strains in biogas slurry purification and biogas upgrade in response to various mixed light-emitting diode light wavelengths. Zhao, Yongjun,Sun, Shiqing,Zhang, Hui,Xu, Jie,Hu, Changwei,Ping, Lifeng.

[2]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.

[3]Effect of Waste Nutrient Solution and Fertigation Nutrient Solution on the Growth and Qualities of Tomato Grown by Fertigation. Xu, Zhihao,Kang, Ho-Min,Kim, Il Seop,Zhang, Cheng Hao. 2010

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