We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
化学法调质脱稳高含水油泥技术研究进展.
- Authors
仝 坤; 谢加才; 谢水祥; 任 雯; 刘晓辉; 张明栋
- Abstract
High water-content oily sludge is produced during the storage and treatment of oily wastewater in shale gas fields, and its high viscosity, specific resistance, and stability will result in a poor dewatering effect in its treatment and disposal, so to break this bottlenecking problem lies in conditioning and destabilization. In this regard, we first analyzed the source, quantity, physicochemical properties and characteristics of high water-content oily sludge, and the impact on production and the harm to environment, as well as its basic properties and the research progress in conditioning and destabilization technologies. And we also reviewed the technical principles and research examples of chemical methods for conditioning and destabilization and analyzed the advantages and disadvantages of various methods. Finally, we pointed out that conditioning and destabilization should be performed in advance so as to enhance the dewatering effect in the treatment of high water-content oily sludge; and that the main factors affecting the destabilization of high water-content oily sludge include the multiphase emulsification system, the properties and content of organic matter, the main components of inorganic matter, Cl-, and pH in sludge. The principle of destabilizing lies in destroying the multiphase emulsification system, so we suggested that according to the composition and properties of sludge, the properties of treating agents and the requirements of subsequent treatment and disposal process, the combination processes with various chemical methods or chemical & physical (ultrasound, microwave, etc.) methods should be selected to realize destabilization and recover oil resources as much as possible, and that efficient separation equipments (sludge regulator, oil-water separator, etc.) be required to improve such a treatment effect.
- Subjects
SLUDGE conditioning; CHEMICAL processes; OIL separators; TREATMENT effectiveness; GAS fields; SHALE gas
- Publication
Natural Gas Industry, 2019, Vol 39, Issue 11, p155
- ISSN
1000-0976
- Publication type
Article
- DOI
10.3787/j.issn.1000-0976.2019.12.020