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Rural solid waste (RSW) treatment is a key part in waste management. Current research on pollutant emissions from the thermal treatment of RSW is scarce. This study aimed to investigate the effects of different thermal treatments on the pollutant emission characteristics of RSW in Guangdong, China. Rubber, polyvinyl chloride (PVC), and food waste (FW) were selected as the source enriched materials for SO 2 , HCl, and NO x , respectively. Firstly, the impact of combustion and gasification-combustion on pollutant formation characteristics was compared. With the application of gasification-combustion, total NO and NO 2  emissions from FW reduced by 60.3% and 40%, respectively. In contrast, SO 2  and HCl emissions increased slightly by 1.67% and 5.49% for rubber and PVC, respectively. Besides, the reaction temperature and atmosphere of gasification-combustion were investigated. When the temperature exceeded 700°C with proportion of air (PA) fixed at 0.5 no NO 2  was detected. The synergy among the components and the catalytic contribution of ash had been identified as important factors influencing the pollutant emission characteristics, and the application of gasification-combustion can effectively improve NO x  emission characteristic.

Comparative study on pollutant emission characteristics of rural solid waste and its typical components during different combustion processes