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摘要: 含油污泥来源广泛、成分复杂,其处理技术和设备也呈多元化趋势。通过实际调研和文献分析对国内外常用的含油污泥处理方法的原理、适用范围、特点以及发展进行了概述,着重介绍了我国石化企业几种新型的含油污泥联合处理技术的应用现状,其中包括筛分流化-调质-机械脱水技术、电化学生物耦合深度处理技术、污泥离心脱水-超热蒸汽喷射处理技术、热洗耦合处理技术和微生物-植物联合处理技术,总结了现有处理方法处理后残渣的含油率能否达到HJ 607—2011《废矿物油回收利用污染控制技术规范》的标准要求以及残渣的资源化利用去向等。综合含油污泥处理技术在应用中存在的问题和处理效果发现,需要使用含油污泥联合技术处理使其达到资源化利用和无害化处理的技术要求。Abstract: The oily sludge has a wide range of sources and complex compositions, and the corresponding treatment technology and equipment also show a diversified trend. It is necessary to use combined treatment technologies of oily sludge to meet the technical requirements of resource utilization and harmless treatment. Through the site survey and literature research, the principles, application scope, characteristics and development of the commonly used oily sludge treatment methods at home and abroad were summarized. The application status of several new oily sludge combined treatment technologies in China’s petrochemical enterprises was introduced, including sieving fluidization-tempering-mechanical dehydration technology, electrochemical bio-coupling advanced treatment technology, sludge centrifugal dewatering-superheated steam injection treatment technology, hot-washing coupling treatment technology and microbial-plant combined treatment technology. Whether the oil content of the residue after treatment by the existing treatment methods could meet the standard requirements of Technical Specifications for Pollution Control of Used Mineral Oil Recovery, Recycle and Reuse (HJ 607-2011) and the resource utilization direction of the residue were summarized. In view of the problems and treatment effects of various oil sludge treatment technologies in application, there are few treatment methods at present to completely treat all oily sludge in a satisfactory manner, and further research is needed.
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Key words:
- oily sludge /
- non-biological methods /
- biological methods /
- combined treatment /
- process comparison
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