Treatment of model oily produced water by combined pre-ozonation–microfiltration process
| Autor: | Zsolt László Kiss, Cecilia Hodúr, Ildikó Kovács, Gábor Veréb, Zsuzsanna László |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Waste management
Chemistry Microfiltration Oil refinery Chemical oxygen demand Ocean Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Pollution Produced water Petrochemical 020401 chemical engineering Wastewater Emulsion Water treatment 0204 chemical engineering 0210 nano-technology Water Science and Technology |
| Zdroj: | Desalination and Water Treatment. 57:23225-23231 |
| ISSN: | 1944-3986 1944-3994 |
| Popis: | Oily wastewaters are one of the major environmental pollutants in aquatic systems. This is due to the emission of a variety of industrial oily wastewaters from sources such as crude oil mining (production), refineries, petrochemical plants and transportation. The aims of this work were to investigate the treatment of oil-contaminated wastewaters with a pre-ozonation/microfiltration combined system and the effect of pre-ozonation on the microfiltration parameters. The results demonstrated that ozone pre-treatment modified the chemical nature (pH and conductivity) of oil-in-water emulsion, resulting in higher wettability of the polyethersulphone membrane. In case of salt-containing model emulsions compared to pure oil emulsions, ozone treatment was found to be more effective for membrane resistance reduction and in chemical oxygen demand retention. |
| Databáze: | OpenAIRE |
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