Ability of a mutant strain of the microalga Chlorella sp. to capture carbon dioxide for biogas upgrading

One of the most important tools for mitigating climate change is biogas production. Increasing their use requires improving the energy value of biogas by reducing its carbon dioxide content while increasing the methane concentration in biogas. Biological purification of biogas using microalgae strains − merging biogas upgrading method where microalgae use carbon dioxide for their growth during the process of photosynthesis. A four-column photobioreactor was constructed with Monoraphidium Griffithi, Chlorella sp. microalgae strains, distilled water and MWH medium for purification of biogas. Experimental studies determined sizes, shapes and of microalgae cells, the pH changes of mediums used after biogas treatment and the composition of biogas before and after upgrading using photobioabsorber. Microalgae Monoraphidium Griffithi was estimated to have the greatest contribution to CO2 reduction by decreasing from 31.0% to 10.0%. The smallest reduction in CO2 was recorded when biogas was flowing through MWH medium. Experiments have shown that the absorption of biogas components results in the release of oxygen. As the biogas was flowing through all suspensions, the oxygen concentration increased from 3.6 to 5.2%.

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Potential Processes for Simultaneous Biogas Upgrading and Carbon Dioxide Utilization

Engineering Solutions for CO2 Conversion ◽

10.1002/9783527346523.ch6 ◽

2021 ◽

pp. 125-144

Author(s):

Francisco M. Baena‐Moreno ◽

Mónica Rodríguez‐Galán ◽

Fernando Vega ◽

Isabel Malico ◽

Benito Navarrete

Keyword(s):

Carbon Dioxide ◽

Biogas Upgrading ◽

Carbon Dioxide Utilization

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Enhanced carbon utilization efficiency and FAME production of Chlorella sp. HS2 through combined supplementation of bicarbonate and carbon dioxide

Energy Conversion and Management ◽

10.1016/j.enconman.2017.11.002 ◽

2018 ◽

Vol 156 ◽

pp. 45-52 ◽

Cited By ~ 31

Author(s):

Manoranjan Nayak ◽

William I. Suh ◽

Bongsoo Lee ◽

Yong Keun Chang

Keyword(s):

Carbon Dioxide ◽

Utilization Efficiency ◽

Carbon Utilization ◽

Chlorella Sp ◽

Combined Supplementation

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Adaptive evolution and carbon dioxide fixation of Chlorella sp. in simulated flue gas

The Science of The Total Environment ◽

10.1016/j.scitotenv.2018.10.070 ◽

2019 ◽

Vol 650 ◽

pp. 2931-2938 ◽

Cited By ~ 31

Author(s):

Dujia Cheng ◽

Xuyang Li ◽

Yizhong Yuan ◽

Chengyu Yang ◽

Tao Tang ◽

...

Keyword(s):

Carbon Dioxide ◽

Adaptive Evolution ◽

Flue Gas ◽

Carbon Dioxide Fixation ◽

Chlorella Sp

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Separation of carbon dioxide for biogas upgrading to biomethane

Journal of Cleaner Production ◽

10.1016/j.jclepro.2017.07.037 ◽

2017 ◽

Vol 164 ◽

pp. 1205-1218 ◽

Cited By ~ 36

Author(s):

Francesco Ferella ◽

Alessandro Puca ◽

Giuliana Taglieri ◽

Leucio Rossi ◽

Katia Gallucci

Keyword(s):

Carbon Dioxide ◽

Biogas Upgrading

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Stan i perspektywy wykorzystania biogazu jako nośnika energii do zastosowań stacjonarnych i środków transportu

Studia Ecologiae et Bioethicae ◽

10.21697/seb.2012.10.3.07 ◽

2012 ◽

Vol 10 (3) ◽

pp. 97-118

Author(s):

Krzysztof Biernat ◽

Izabela Różnicka

Keyword(s):

Carbon Dioxide ◽

Renewable Energy ◽

Hydrogen Sulfide ◽

Energy Balance ◽

Sewage Sludge ◽

Motor Fuel ◽

International Programs ◽

Biogas Upgrading ◽

Compressed Natural Gas ◽

Production Of Hydrogen

Both governmental and international programs support the promotion of biofuels and aim to increase the limit of renewable energy used in the fuel energy balance. Biogas is produced during the anaerobic methane fermentationprocess and it is known as a significant source of renewable energy, contributing to agriculture and environmental protection. Three types of biogas can be distinguished: biogas from sewage sludge, biogas collected from land`fils, andagricultural biogas. There are several possibilities of using upgraded biogas. Biogas can be used in cogeneration systems to provide heat and electricity, in transportation as a motor fuel and in the production of biohydrogen. Biogas upgrading process leads to a product which is characterized by the same parameters as compressed natural gas. Direct biogas use in the production of hydrogen is possible because of prior purification from traces like hydrogen sulfide, except carbon dioxide, by which the reaction can proceed in the desired manner.

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