The analcime-bearing rock immobilized microalgae: Stress resistance, psychrotolerance, phenol removal
| Autor: | Dmitry A. Shushkov, Tatyana N. Shchemelinina, Olga B. Kotova, Elena M. Anchugova |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Environmental Engineering Chlorella vulgaris Bioengineering Dehydrogenase 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Phenols 010608 biotechnology Microalgae Phenol Waste Management and Disposal 0105 earth and related environmental sciences Pollutant Renewable Energy Sustainability and the Environment Biofilm General Medicine Biodegradation Biodegradation Environmental chemistry Environmental chemistry Formazan |
| Zdroj: | Bioresource technology. 322 |
| ISSN: | 1873-2976 |
| Popis: | 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 × 104 cells/mm2. 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. |
| Databáze: | OpenAIRE |
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