Effect of Heavy Metals and Inorganic Nutrients Existing as Co-contaminants on Bioremoval of 2,4-Dichlorophenoxyacetic Acid (2,4-D) by Nostoc hatei TISTR 8405
| Autor: | Sumontip Bunnag, Witaya Pimda |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
021110 strategic
defence & security studies Multidisciplinary 2 4-Dichlorophenoxyacetic acid Strain (chemistry) Aquatic ecosystem 0211 other engineering and technologies Amendment 02 engineering and technology 010501 environmental sciences Contamination 01 natural sciences chemistry.chemical_compound Nutrient chemistry Environmental chemistry Sewage treatment Water pollution 0105 earth and related environmental sciences |
| Zdroj: | Arabian Journal for Science and Engineering. 42:2291-2301 |
| ISSN: | 2191-4281 2193-567X |
| Popis: | Water pollution caused by 2,4-dichlorophenoxyacetic acid (2,4-D) has become a serious health and environmental concern all over the world. The aim of this study was to assess the potential of Nostoc hatei strain TISTR 8405 to remove 2,4-D under different conditions. The strain TISTR 8405 was found to grow well with 2,4-D at a concentration range of 2–50 mg/L with satisfactory bioremovability. Despite its growth ability at broad-range pH intervals (4–9), the strain TISTR 8405 performed its bioremovability at decreased rates in the extreme acidic environment. Addition of heavy metals caused a strong suppressing effect on the bioremoval of 2,4-D, while amendment of nutrients enhanced bioremoval efficiency of the herbicide. GC-MS analysis indicated that the strain TISTR 8405 could degrade 2,4-D, transforming it into 2,4-DCP. The findings obtained in this study suggest that the strain TISTR 8405 could be used as a promising bioremedial agent for bioremoval of 2,4-D. However, the presence of heavy metals in aquatic environments can possibly impede its bioremoval activities. |
| Databáze: | OpenAIRE |
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