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Synthesis of zeolites using fly ash and their application in removing heavy metals from waters 被引量:2
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作者 王焰新 郭永龙 +2 位作者 杨志华 蔡鹤生 Xavier Querol 《Science China Earth Sciences》 SCIE EI CAS 2003年第9期967-976,共10页
Three types of zeolite (NaP1 zeolite, analcime and chabazite) were hydrothermally synthesized by reacting fly ash with NaOH solution. The maximum conversion rate from fly ash to single zeolite is about 40%—75%, and t... Three types of zeolite (NaP1 zeolite, analcime and chabazite) were hydrothermally synthesized by reacting fly ash with NaOH solution. The maximum conversion rate from fly ash to single zeolite is about 40%—75%, and the total conversion rate 60%—80%. The synthesis experimental results indicate that factors including vortex, viscosity, temperature, reaction time, and NaOH concentration in the reaction system strongly affect the type and conversion rate of zeolites. The batch experiments of removing Cu2+, Pb2+ and Cd2+ from wastewaters show that the adsorption capacity of zeolites synthesized is higher than that of fly ash. 展开更多
关键词 coal FLY ash HYDROTHERMAL synthesis zeolite heavy metal wastewater adsorption.
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