Study on the treatment of wastewater of oil shale retorting by photocatalytic degradation with TiO2

摘要

As the oil shale retorting process is unique, resulting wastewater contains large amounts of oil, sulfide, cyanide, volatile phenol, ammonia and other toxic substances, its high content of COD and refractory material and more. This paper attempts to establish a comprehensive titanium dioxide photocatalytic water treatment methods of oil shale, and shadow detail catalytic sewage treatment factors such as reaction time, catalyst type, catalyst volume, intensity, temperature, etc. We establish a series of methods which can effectively and precisely test the pollutant content in waste water at the same time, but also of the oil shale retorting wastewater and other factors; as a total solution to wastewater from oil shale retorting basis. TiO2 have been prepared by sol-gel processing. The mechanism of photocatalytic degradation with TiO2 used for treating carbonization wastewater of oil shale is analyzed. At the same time, carbonization wastewater of oil shale and other factors efflunced the results are also studied.