Sewage treatment technology of flat ceramic membrane sludge

In the process of oil exploration, exploitation, refining, tank cleaning, storage and transportation, a large number of crude oil or oil and soil, water or other impurities form oily sludge and sewage, which need harmless treatment to avoid harm to the environment. The composition of oil sludge is very complex, which is generally composed of water, soil and oil organic matters. Oil sludge mainly has the following characteristics: high water content, large volume, complex composition, difficult to deal with; a large number of dirty oil and combustible substances. Oil sludge has been listed in the catalogue of national hazardous wastes in China. The types and properties of oil sludge are various, especially the three-phase emulsification of oil, mud and water in oil sludge is serious, which makes it difficult to reach the standard after oil sludge treatment. The harmless treatment of oil sludge has always been a worldwide problem. Therefore, new oil sludge treatment technology is urgently needed to fully recover the oil in oil sludge, so as to make the residual oil in the treated soil Meet the national standards.