Ultrasound-UV Method Detect Oil Content of Oily Sludge from Daqing Oilfield
Drained sludge of Daqing oilfield No.4 oil production plant was collected from bottoms of tanks, and the oil content was usually lower than 2%. In this paper, the contents of petroleum substances, total petroleum hydrocarbons (TPH) and animal and plant oil were investigated. Ultrasound-UV method was used to detect the oil content of oily sludge. Results showed that the best ultrasound time was 8 min and the best solid-liquid ratio for the extraction was about 1:20. The standard curve was constructed. The comparison between the ultrasound-UV method and the traditional method shows that the ultrasound-UV method is more suitable for the detection of oil content of oily sludge with lesser oil. Moreover, the methods of detecting sludge with lower oil content have been established.
Zhenyu Du and X.B Sun
J. Zhang et al., "Ultrasound-UV Method Detect Oil Content of Oily Sludge from Daqing Oilfield", Advanced Materials Research, Vols. 113-116, pp. 2292-2295, 2010