摘要
采用水力空化技术对水中石油污染物的催化降解性能及影响因素进行研究。结果表明,适当提高入口压力、升高反应温度、延长反应时间,有利于石油污染物的降解。当入口压力0.3 MPa、反应温度25℃、反应时间5 h时,水力空化系统对石油的去除率为84.28%。经GC-MS分析,在空化催化降解作用下,石油污染物中大多数有机物被直接氧化成CO2和H2O,同时避免了新的小分子有机物生成。水力空化技术可以有效地去除水中的石油污染物,可以作为处理石油废水的一种有效方法。
The performance of catalytic degradation of petroleum contaminants in water was studied by means of hydrodynamic cavitation technology. The results showed that an appropriate increase of the inlet pressure, elevated reaction temperature and longer reaction time were conducive to the degradation of oil pollutants. In the condition of inlet pressure 0.3 MPa, reaction temperature 25℃ and reaction time 5 h, the removal rate of oil content in oil-contaminated water was 84.28%. GC/MS analysis showed that under the effects of catalytic degradation, most organics in oil pollutants was directly oxidized to CO2 and H2O, so that the types end content of organic pollutants in water decreased, while avoiding generated new small organic molecules. Therefore, the hydrodynamic cavitation technology could effectively remove oil contaminants in water, which could be used as an effective treatment of petroleum wastewater.
出处
《水处理技术》
CAS
CSCD
北大核心
2014年第1期100-103,共4页
Technology of Water Treatment
基金
天津市科技支撑计划重点项目(10ZCGYSH02000)
关键词
水力空化
石油废水
降解
效能
hydrodynamic cavitation
oil pollutants
degradation, water treatment
