Agricultural Biogas Plant Location Selection Using MCDA Methods

Natalia Taraszkiewicz

Abstract

The purpose of this paper is to determine the influence of color temperature of Light Emitting Diode (LED) diodes and illumination intensity on the content of photosynthetic pigments of chlorophyll a, chlorophyll b and carotenoids in Chlorella vulgaris algae cells. Choosing the right color temperature and intensity of illumination can favorably affect the growth of algae. In particular, it can contribute to the efficiency of the photosynthesis process and the amount of produced biomass from Chlorella vulgaris algae. In the spectrophotometric studies, the highest content of chlorophyll a, chlorophyll b and carotenoids was found in cultures illuminated with very cold white light (8500 K) with an intensity of 500 μmol/m2s. The highest measured content of chlorophyll a (Chl a) pigments was 48.29 mg/L, Chl b pigment was 23.25 mg/L and carotenoids pigment was 12.65 mg/L; the smallest content of pigments for Chl a (11.48 mg/L), Chl b (4.69 mg/L) and carotenoids (3.03 mg/L) was found in the sample illuminated with warm white light (3200 K) with an intensity of 50 μmol/m2s. The highest amount of dry organic matter amounting to 2.0 g/L was found in a sample illuminated with warm white light (3200 K) with an intensity of 250 μmol/m2s, then 1.91 g dry organic mass (DOM)/L for very cold white light with an intensity of 250 μmol/m2s, and 1.48 g DOM/L for very cold white light with an intensity of 50 μmol/m2s. The obtained results show that a higher content of photosynthetic pigments does not directly affect the increase of the amount of dry organic matter.
Author Natalia Taraszkiewicz (FCEE)
Natalia Taraszkiewicz,,
- Faculty of Civil and Environmental Engineering
Journal seriesProceedings, ISSN , e-ISSN 2504-3900, (0 pkt)
Issue year2019
Vol16
No1
Pages1-4
Publication size in sheets0.5
ConferenceInnovations-Sustainability-Modernity-Openness Conference (ISMO'19), 22-05-2019 - 23-05-2019, Białystok, Polska
Keywords in English photosynthetic pigments; algae; Chlorella vulgaris; LED diodes; illumination
DOIDOI:10.3390/proceedings2019016007
URL https://www.mdpi.com/2504-3900/16/1
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)5
Score sourcejournalList
ScoreMinisterial score = 5.0, 31-03-2020, ArticleFromJournal
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