Factors that influence methanogenic activities in a low sulfate oil-producing facility
| Autor: | Okoro Chuma Conlette, Nwezza Elebe Emmanuel, Amund O. Olukayode |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Methanobacterium biology General Chemical Engineering Sodium 030106 microbiology Energy Engineering and Power Technology chemistry.chemical_element Methanolobus General Chemistry Geotechnical Engineering and Engineering Geology biology.organism_classification Methane Salinity 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology Fuel Technology chemistry Halophyte Environmental chemistry Methane production Sulfate |
| Zdroj: | Petroleum Science and Technology. 36:688-695 |
| ISSN: | 1532-2459 1091-6466 |
| DOI: | 10.1080/10916466.2018.1443124 |
| Popis: | Molecular analysis of a low sulfate oil bearing environment was carried out using 16S rRNA gene sequencing technique and the effects of some environmental factors like pH, temperature, salinity on methane production and corrosion rates were determined. Pyrosequenced data revealed dominance of hydrogenotrophic (Methanobacterium) and Methylotrophic (Methanolobus) in samples. Results showed that samples had their optimal temperature for maximum methane production at 35–40oC and higher temperature (55oC) was inhibitory to methane production. Methanogens in samples produced methane over a wide pH range but the pH optima for maximum methane production ranged between 6 and 7. Sodium chloride was tolerated better at lower concentrations ( 300 mM) drastically inhibited methane formation, an indication that the methanogens involved are not halophytes. Because different methanogens require different substrates and reacts to changes in environmental conditions, environmental ... |
| Databáze: | OpenAIRE |
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