Transfer and transformation of mercury in cement production

In the previous study, the Ontario method was used to sample and analyze some production links of cement plants, but only the morphological distribution of mercury before and after the dust collector was obtained. Few researches have been carried out to analyse and test the whole process of cement plant production. In this study, based on the method of combining theoretical analysis with field sampling, the mercury levels in solid samples and gas samples was analyzed and then compared with the results obtained from theoretical analysis. In this work, the results of the theoretical analysis and the sampling can be derived towards a consistent trend, so the theoretical analysis results have a certain credibility. Then the theoretical analysis of each link in the cement production process was carried out to obtain the morphological distribution of mercury in the main link, and then the thermodynamic analysis was carried out to obtain the form distribution, migration and transformation of mercury in each link of cement production. It provides a theoretical basis for local mercury pollution control, later mercury emission reduction, coordinated disposal and management.