The analcime-bearing rock immobilized microalgae: Stress resistance, psychrotolerance, phenol removal.

Autor: Shchemelinina TN; Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, 28 Kommunisticheskaya St., 167982 Syktyvkar, Komi Republic, Russia., Anchugova EM; Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, 28 Kommunisticheskaya St., 167982 Syktyvkar, Komi Republic, Russia. Electronic address: anchugova@ib.komisc.ru., Kotova OB; Institute of Geology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, 54 Pervomayskaya St., 167982 Syktyvkar, Komi Republic, Russia., Shushkov DA; Institute of Geology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, 54 Pervomayskaya St., 167982 Syktyvkar, Komi Republic, Russia.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2021 Feb; Vol. 322, pp. 124560. Date of Electronic Publication: 2020 Dec 25.
DOI: 10.1016/j.biortech.2020.124560
Abstrakt: The development of synergetic biogeocomplices for biodegradation of recalcitrant organic pollutants is an urgently needed to achieve the environmental sustainability. The biogeosorbent based on the analcime-bearing rock immobilized Chlorella vulgaris f. globosa was developed to remove phenol from polluted waterbodies. The microalgae biofilm formation on the ABR resulted in 1.6 × 10 4  cells/mm 2 . Stress testing showed that low temperatures up to -30 °C did not adversely affect the cell viability, the dehydrogenase activity of the biogeosorbent exposed was 5.1 mg of formazan/mL. Under phenol-stress conditions, aggregation of suspended cells was observed. The biogeosorbent was more stress resistant than the microalgal suspension, and also reduced the time of exposure and had no secondary waste in comparison with the ABR. After having been treated, phenol removal was found to increase from 70 to 72% for MA, from 27 to 93% for ABR, from 82 to 93% for the biogeosorbent.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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