Analysis of Oilfield Wastewater Treatment Effect Based on Low Temperature Plasma Treatment Process

Abstract

In order to study the effect of different low temperature plasma treatment technology on the oil field's abolishment, the influence of low temperature plasma discharge frequency, scale inhibitor and the combined application of low temperature plasma and scale inhibitor on the quality of heavy oil wastewater and distilled water was analysed. When the discharge frequency of low temperature plasma was 900s-1, the decrease of oil content was 50.56%. The scale inhibitor also reduced the oil content of the heavy oil wastewater and the distilled water. However, the combined use of low temperature plasma and scale inhibitor would increase the content of oil and the content of metal ions in distilled water. The increase of oil content was 56%. The results showed that the low temperature plasma had obvious effect on reducing the oil content and SiO2 content in distilled water. Therefore, this study confirms the influence and mechanism of low-temperature plasma treatment on the quality of oil field wastewater.