DOI: 10.1016/j.jcou.2018.12.020
Scopus记录号: 2-s2.0-85059663094
论文题名: Utilization of unfiltered LPG-burner exhaust-gas emission using microalga Coelastrella sp
作者: Suriya Narayanan G. ; Kumar G. ; Seepana S. ; Elankovan R. ; Premalatha M.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2019
卷: 29 起始页码: 283
结束页码: 295
语种: 英语
英文关键词: CO 2 bio-fixation
; Coelastrella sp.
; LPG-combustion exhaust
; Net energy ratio
; Open pond reactor
Scopus关键词: Algae
; Atmospheric pressure
; Biomass
; Carbon dioxide
; Combustion
; Ecology
; Gases
; Growth rate
; Lakes
; Biomass production rate
; Biomass productions
; Coelastrella sp
; Combustion exhausts
; Exhaust gas streams
; Maximum specific growth rates
; Net energy ratios
; Open pond reactor
; Liquefied petroleum gas
英文摘要: This present study evaluated the potential of an untapped thermo-tolerant microalga, Coelastrella sp. FI69 as a promising candidate for scalability, CO 2 bio-sequestration and biomass production. The microalga is preliminarily cultivated in elevated CO 2 and finite NO 3 - growth habitat at outdoor field, and developed from lower to higher volume culture. The scaled up culture is eventually used as seed (in two different initial inoculum density, 0.01 and 0.01 g L -1 DW 1 ), in 200 L open rectangular pond (ORP 2 ) reactor aerated with LPG combusted exhaust-gas streams (10 vol. % of CO 2 , 150 ppm of nitrogenous gases at atmospheric pressure and 30-40 °C) for 8-10 days for biomass production. The biomass production rate (BPR 3 ), maximum specific growth rate (μ max 4 ), CO 2 bio-fixation rate (CBFR 5 ) and maximum biomass density (D B-max 6 ) of the microalga culture achieved in the exhaust-gas aeration at 0.01 and 0.1 g L -1 are found as 0.065 ± 0.005 and 0.116 ± 0.011 g DW L -1 , 0.467 ± 0.014 and 0.426 ± 0.007 day -1 , 0.112 ± 0.008 and 0.202 ± 0.002 g CO 2 L -1 day -1 , and 0.529 ± 0.037 and 1.047 ± 0.022 g DW L -1 , respectively. The harvested biomass had heating values of 20.2-21.7 MJ kg -1 , contained 16-20% of lipids, and a theoretical methane potential of 586.2 mL CH 4 gVS -1 . From the biomass energy potential analysis, the microalga cultivation system, which designed to utilize the combustion-gases for biomass production, could reach a promising higher net energy ratio. This study mostly highlights the significance of using the strain for utilization of CO 2 -rich gas streams. © 2019 Elsevier Ltd. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117307
Appears in Collections: 气候变化与战略
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Recommended Citation:
Suriya Narayanan G.,Kumar G.,Seepana S.,et al. Utilization of unfiltered LPG-burner exhaust-gas emission using microalga Coelastrella sp[J]. Journal of CO2 Utilization,2019-01-01,29