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Study on the Modified Fly Ash to Treat the Wastewater Including Heavy Metals

机译：改性粉煤灰处理重金属废水的研究。

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摘要

In this paper,fly ash (FA) was modified using fire assay method and then was used to treat the heavy metal wastewater which contain As,Fe,Mn,and Cu ions.The modification conditions were optimized based on the adsorption effects.The dosage of With the increasing of FA dosages and oscillation time,the adsorption effect also increased.When the ratio of water and FA was 3:50,the optimum adsorption efficiency of heavy metals was achieved.The highest removal efficiency of Cu,Mn and As were 90％ when the FA was oscillated for two hours,while the removal efficiency of Fe reached a peak value when the FA was oscillated over 2.5 hours.All of these are engaged to provide experimental reference for the modified FA on the engineering application in the area of Wastewater Treatment.It is not only helpful to improve the utilization rate of the waste,but also to the promotion of the construction in resource-saving and environment-friendly society.
机译：本文采用火试法对粉煤灰（FA）进行了改性，然后用于处理含As，Fe，Mn和Cu离子的重金属废水。根据吸附效果优化了改性条件。随着FA用量和振荡时间的增加，吸附效果也随之提高。当水与FA的比例为3:50时，重金属的最佳吸附效率达到最高。Cu，Mn和As的去除效率最高。 FA振荡2小时达到90％，而当FA振荡2.5小时以上时，Fe的去除效率达到峰值。这些都为改性FA在该地区的工程应用提供了实验参考。不仅可以提高废物的利用率，而且可以促进资源节约型和环境友好型社会的建设。

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