What question did this study set out to answer?

This study aims to assess the effects of different liquid-to-gas ratios, light conditions, and photoperiods on biogas upgrading using Chlorella vulgaris.

June 9, 2026ProcessesOpen Access

Sequential Evaluation of Liquid-to-Gas Ratio, Photoperiod, and Light Intensity for Chlorella vulgaris-Based Biogas Upgrading in a PBR–Absorption Column System

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Authors

LDLoreta Drazdienė AZAlvydas Zagorskis TJTomas Januševičius

Discussion

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Overview

Randomized trial evaluates gas upgrading outcomes in microalgae under varying light conditions, implying benefits for sustainable energy solutions.

Key Points

This study aims to assess the effects of different liquid-to-gas ratios, light conditions, and photoperiods on biogas upgrading using Chlorella vulgaris.
Sequential evaluation of liquid-to-gas ratios from 0.6 to 4.0, light intensities from 150 to 400 µmol m−2 s−1, and photoperiods from 0:24 to 16:8 h.
Conducted in a semi-continuous photobioreactor–absorption column system with specific operating conditions.
Measurements included CO2 removal efficiency (CO2-RE) and methane (CH4) production rates.
Increasing L/G from 0.6 to 4.0 enhanced CO2-RE from 67.9% to 81.6% and CH4 from 77.0% to 82.9%.
The 16:8 h photoperiod achieved the highest CO2-RE of 81.4% and CH4 of 81.7%.
At L/G = 4.0 with 300 µmol m−2·s−1 PPFD, CO2-RE improved from 81.4% to 82.86%, CH4 from 81.7% to 84.4%, and biomass productivity increased from 0.230 to 0.250 g L−1 d−1.

Cite This Study

Drazdienė et al. (2026) studied this question.

synapsesocial.com/papers/6a27add2a963992e16267f26 https://doi.org/10.3390/pr14121848

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June 9, 2026ProcessesOpen Access

Sequential Evaluation of Liquid-to-Gas Ratio, Photoperiod, and Light Intensity for Chlorella vulgaris-Based Biogas Upgrading in a PBR–Absorption Column System

View Full Paper

Ask AI

Bookmark

Authors

LDLoreta Drazdienė AZAlvydas Zagorskis TJTomas Januševičius

Discussion

Member takes

Overview

Randomized trial evaluates gas upgrading outcomes in microalgae under varying light conditions, implying benefits for sustainable energy solutions.

Key Points

This study aims to assess the effects of different liquid-to-gas ratios, light conditions, and photoperiods on biogas upgrading using Chlorella vulgaris.
Sequential evaluation of liquid-to-gas ratios from 0.6 to 4.0, light intensities from 150 to 400 µmol m−2 s−1, and photoperiods from 0:24 to 16:8 h.
Conducted in a semi-continuous photobioreactor–absorption column system with specific operating conditions.
Measurements included CO2 removal efficiency (CO2-RE) and methane (CH4) production rates.
Increasing L/G from 0.6 to 4.0 enhanced CO2-RE from 67.9% to 81.6% and CH4 from 77.0% to 82.9%.
The 16:8 h photoperiod achieved the highest CO2-RE of 81.4% and CH4 of 81.7%.
At L/G = 4.0 with 300 µmol m−2·s−1 PPFD, CO2-RE improved from 81.4% to 82.86%, CH4 from 81.7% to 84.4%, and biomass productivity increased from 0.230 to 0.250 g L−1 d−1.

Cite This Study

Drazdienė et al. (2026) studied this question.

synapsesocial.com/papers/6a27add2a963992e16267f26 https://doi.org/10.3390/pr14121848

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