Evaluation of the properties of potassium ferrate used for water purification by luminescence bioassay
| Autor: | Yu. D. Perfiliev, E. V. Sorokina, A. P. Zarubina, Alexander I. Netrusov |
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| Rok vydání: | 2016 |
| Předmět: |
Potassium ferrate
Heavy metals Portable water purification 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences General Biochemistry Genetics and Molecular Biology 0104 chemical sciences chemistry.chemical_compound Adsorption chemistry Reagent Environmental chemistry Bioassay 0210 nano-technology General Agricultural and Biological Sciences Luminescence Chemical composition General Environmental Science |
| Zdroj: | Moscow University Biological Sciences Bulletin. 71:226-230 |
| ISSN: | 1934-791X 0096-3925 |
| DOI: | 10.3103/s0096392516040131 |
| Popis: | Characteristics of four natural water samples from urban and rural areas and the efficiency of a new purifying agent, potassium ferrate K2FeO4, were studied by bacterial luminescence bioassay for 30 minutes. It was revealed that two samples of water from the urban areas are toxic, while the other two samples (one from urban and one from rural environment) are nontoxic. Numerous data obtained on the increase in toxicity index with time allow reasonable conclusions to be made about the chemical nature of substances present in the test water samples. Toxic natural water samples were likely to contain heavy metals and were well purified using potassium ferrate, including via their adsorption. In nontoxic natural water samples, toxic complexes with organic compounds present in water could form at the addition of potassium ferrate. The obtained data call for further studying the properties of potassium ferrate complexes with organic compounds. Bacterial luminescence bioassay is a promising method for the rapid assessment of properties of various water sources (their integral toxicity and presumable chemical composition) and new reagents for their purification (effective concentrations, bactericidal properties, and mechanisms of interacting with heavy metals and organic substances in water). |
| Databáze: | OpenAIRE |
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