Oily Sludge Treatment Methods

Oily sludge, also known as oil sludge, is an industrial solid waste composed of crude oil, water and inorganic minerals produced in the process of oil and gas exploitation, storage and transportation, and refining. Oily sludge is mainly produced in the process of crude oil extraction, oil and gas storage and transportation, crude oil storage and sewage treatment in refineries. Pollution of groundwater, soil and air. Threats to human health and ecosystems. Comparison of Oily Sludge Treatment Methods 1, Thermal cleaning: sieving fluidization-chemical conditioning and sedimentation/ultrasonic-centrifugation. It is suitable for oil sludge with less clay content and higher oil content. The quality of recovered oil and the secondary treatment of drainage are more difficult. 2, Extraction: Leachi