Fly ash treatment is an essential step in the incineration process of household waste.Howe ver,the current technology has a low leaching rate of heavy metals in fly ash in practical applications,which cannot achieve the expected treatment effect.Therefore,a study of sintering treatment technology of household waste incineration fly ash is proposed.By digesting fly ash with acid and removing soluble salt pollutants from fly ash,a small disc pelletizer is used to manufacture fly ash into agglomerates with a diameter of 10 mm.The agglomerates are sintered in a furnace to complete the sintering treatment of household waste incinera-tion fly ash.Experimental results have shown that the leaching rate of heavy metals from fly ash using the design technology is not less than 90％,and the treatment rate can reach over 2 t/h.It has good application prospects in the treatment of household waste incineration fly ash.
关键词
生活垃圾/焚烧飞灰/烧结处理/酸消解/烧结炉/重金属浸出率
Key words
household waste/burning fly ash/sintering treatment/acid digestion/sintering furnace/heavy metal leaching rate
维普
万方数据