Method for fixing waste incineration fly ash through ion adsorption type rare earth tailings: Fid-Bau Portal

Method for fixing waste incineration fly ash through ion adsorption type rare earth tailings

YUAN PENG / OU ZHOU / ZHANG BAIFA / LIU YI / PENG ZHINENG / LIAO MINGYU

The invention belongs to the technical field of environmental protection, and particularly relates to a solid waste resource utilization and pollution control technology. The method comprises the following steps: doping an alkaline solution and the waste incineration fly ash into the crushed and activated ion adsorption type rare earth tailings, fully stirring, and curing to form a cured body with good mechanical strength and heavy metal curing rate; by means of the technical means, effective fixation of the waste incineration fly ash can be achieved, meanwhile, the solidified body based on the raw materials such as the ion adsorption type rare earth tailings and the waste incineration fly ash has the advantages of being excellent in mechanical strength, low in heavy metal dissolution rate and the like, and the waste fly ash disposal standard is met.

本发明属于环保技术领域，具体涉及固体废弃物的资源化利用和污染控制技术；公开了一种利用离子吸附型稀土尾矿固定垃圾焚烧飞灰的方法：将碱性溶液和垃圾焚烧飞灰掺入到经破碎、活化后的离子吸附型稀土尾矿中，在充分搅拌后，经过养护形成具有良好力学强度和重金属固化率的固化体；通过本发明的技术手段，可以实现垃圾焚烧飞灰的有效固定，同时，这种基于离子吸附型稀土尾矿和垃圾焚烧飞灰等原料的固化体具有力学强度优异、重金属溶出率低等优点，满足垃圾飞灰处置标准。

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