Views: 19 Author: Site Editor Publish Time: 2019-09-03 Origin: Site
During the processing of oil exploration, mining, refining, clearing, storage and transportation, a large amount of oil mix with soil, water or other impurities, which form the oily sludge and sewage. In order to protect environment, the oily sludge and sewage need to be harmlessly treated. However, the composition of the oily sludge is extremely complex. Generally, it consists of water, mud, oil and organic matter. The characteristics of oily sludge have high water content, large volume, complex composition, difficult handling and it also contains a large amount of slop oil and combustible materials. China has listed the petrochemical industry sludge in the “National Hazardous Waste Catalogue”. The oil sludge is various in variety and complex in nature. In particular, the three-phase emulsification of oil, mud and water is serious in sludge. It is difficult to reach the standard after sludge treatment. The oil sludge treatment has been a global problem. Therefore, it is in urgent need of the new type of sludge treatment technology for recycling the oil from oil sludge, and making oil residue meet the national standard in the treated soil.
Dasen flat ceramic membrane is characterized by its unique Pro-oil, not hydrophilic, high filtration precision, acid and alkali resistant, strong anti-erosion and big capacity. It is a high-quality material for oil, water and mud separation. As the core technology of Oil Sludge Treatment Equipment, the flat ceramic membrane separation technology already tested many times. It has been used in CNOOC’s Oil Sludge Treatment. And the treatment result has met the National Emission Standard , and realized economic benefit environmental benefit.
The flat ceramic membrane is a new type nanofiltration membrane, which was developed by NanoMem® in China. Its materials is make of Al2O3, ZrO2, TiO2, SiO2 and so on. It adopts China's millennium traditional sintering processing and modern equipment for making the ceramic material. The material is hydrophilic and non-lipophilic, and the filtration precision can reach 0.1μm. When it is used in oil-water separation, small molecule water is filtered through the nanopore with a pore size of 0.1μm, and the macromolecular oil is trapped. Compared with other membrane materials, the flat ceramic membrane has the characteristics of high temperature resistance, acid and alkali resistance and pollution resistance, so it is suitable for treating complex and strong corrosion Oil Sludge. And also, the plate structure of flat ceramic membrane makes flux larger when sewage treatment. It is more suitable for backwashing, achieving long service life and ensuring the continuity of the sewage treatment processing. Therefore, it is incomparable that the flat ceramic membrane is applied to petrochemical industry wastewater treatment, and it will effectively solve the difficult problem of petrochemical industry wastewater.