Feasibility study on the preparation of ultralight ceramsite from aluminum ash synergistic multisource urban solid waste
Aluminum ash poses the risk of releasing toxic and harmful gases when it comes into contact with water.To solve the problem of aluminum ash disposal,aluminum ash is pre-treated using aqueous media,mixed with sand washing sediment,engi-neering waste soil,and domestic sludge,and the feasibility of aluminum ash collaborating with multi-source urban solid waste to prepare ultra-light ceramic particles is studied.The results show that according to the ratio of engineering waste soil∶sand washing bottom mud∶domestic sludge∶hydrolyzed aluminum ash=24∶57∶10∶9,within the firing temperature range of 1125～1225 ℃,ultra-light ceramic particles with an average stacking density of 405 kg/m3,an average water absorption rate of 6.47％,and a density grade of 500 can be fired.The production of aluminum ash ceramic particles using the powder grinding ball rotary kiln process is also fea-sible,and the performance of ceramic particles products meets the requirements of GB/T 17431.1-2010 standard.
万方数据
维普
