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为了促进含油污泥资源化利用的工程化应用,提高回收油品质并减少二次污染,开发了含油污泥2级分离系统集成工艺,并选用典型的油泥样品在实验室条件下进行了工艺优化实验。结果表明,在高含固预处理一级分离中添加20%的煤油,可脱除粒径在15.1μm以上的固体颗粒。一级分离产物经7%微乳液化学调质后进行二级离心分离,得到的回收油中含水和固体颗粒重量比小于3%。该分离系统将应用于日处理100 t的油泥资源化处理集成技术示范工程。
In order to promote the engineering application of oily sludge resource utilization, improve the quality of recovered oil and reduce the secondary pollution, an integrated process of oily sludge 2-stage separation system was developed and a typical sludge sample was selected for process optimization under laboratory conditions experiment. The results show that 20% kerosene can be removed in the first stage separation of high solids pretreatment, and the solid particles with particle size above 15.1 μm can be removed. The primary separation product was subjected to secondary centrifugation after the chemical modification of 7% microemulsion, and the recovered oil contained less than 3% by weight of water and solid particles. The separation system will be applied to the daily processing of 100 t of sludge treatment of integrated technology demonstration project.