کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6301369 | 1618008 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microalgal biotechnology for greenhouse gas control: Carbon dioxide fixation by Spirulina sp. at different diffusers
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
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چکیده انگلیسی
The carbon dioxide (CO2) emissions from fossil fuels contributes to global warming. This phenomenon became a major political issue in the fields of science, environment, and economy in current years. Microalgae can convert CO2 into biomass and oxygen through the photosynthesis. The aim of this study was to evaluate the influence of diffusers configuration and CO2 flow rate in mass transfer, CO2 fixation efficiency by Spirulina and in the biomass composition produced. Two flow rates (0.05 and 0.3 vvm) and four diffusers (sintered stone (SS), porous curtain (PC), perforated ring (PR) and porous wood (PW)) were used in this study. The maximum CO2 mass transfer coefficient (123.2 hâ1) in the CO2-H2O system corresponded to the higher flow rate (0.3 vvm) using the diffuser porous curtain (PC). The maximum biomass productivity (125.9 ± 5.3 mg Lâ1 dâ1) was observed for PC with a flow rate of 0.05 vvm. Increasing the flow rate (0.3 vvm) with PC resulted in a 26% increase in the carbohydrate content in biomass. The results showed a smaller flow rate with porous diffusers might promote an increase in CO2 fixation efficiency by microalgae.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 91, June 2016, Pages 426-431
Journal: Ecological Engineering - Volume 91, June 2016, Pages 426-431
نویسندگان
Luiza Moraes, Gabriel Martins da Rosa, Bruna Barcelos Cardias, Lucielen Oliveira dos Santos, Jorge Alberto Vieira Costa,