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Treatment method for hazardous waste incineration fly ash
The invention relates to the field of hazardous waste resource utilization and environmental protection, in particular to a treatment method for hazardous waste incineration fly ash. The treatment method comprises the following steps: mixing, alkali excitation, molding and maintenance, and water washing. The method specifically comprises the following steps: stirring and mixing the hazardous waste incineration fly ash and a silicon-aluminum tempering agent to obtain a first mixture; then adding an alkali activator into the first mixture, mixing and stirring to obtain a geopolymer; carrying out pressure forming on the geopolymer to obtain a formed sample, and curing the formed sample; and finally, the soaking cured formed sample in water so that the soluble salt is separated from the hazardous waste incineration fly ash. According to the treatment method, the separation difficulty of the soluble salt in the hazardous waste incineration fly ash can be reduced.
本发明涉及危险废物资源化利用和环境保护领域，尤其涉及一种危险废物焚烧飞灰的处理方法。本发明的处理方法包括以下步骤：混合、碱激发、成型及养护、水洗。具体为，先将危险废物焚烧飞灰与硅铝调质剂进行搅拌混合，得到第一混合物；然后向所述第一混合物中加入碱激发剂混合搅拌，得到地聚合物；再对所述地聚合物进行加压成型，得到成型样品，对成型样品进行养护；最后将经养护的所述成型样品浸泡在水中，使可溶性盐从所述危险废物焚烧飞灰中分离。本发明的处理方法能够使得危险废物焚烧飞灰中可溶性盐的分离难度降低。
Treatment method for hazardous waste incineration fly ash
The invention relates to the field of hazardous waste resource utilization and environmental protection, in particular to a treatment method for hazardous waste incineration fly ash. The treatment method comprises the following steps: mixing, alkali excitation, molding and maintenance, and water washing. The method specifically comprises the following steps: stirring and mixing the hazardous waste incineration fly ash and a silicon-aluminum tempering agent to obtain a first mixture; then adding an alkali activator into the first mixture, mixing and stirring to obtain a geopolymer; carrying out pressure forming on the geopolymer to obtain a formed sample, and curing the formed sample; and finally, the soaking cured formed sample in water so that the soluble salt is separated from the hazardous waste incineration fly ash. According to the treatment method, the separation difficulty of the soluble salt in the hazardous waste incineration fly ash can be reduced.
本发明涉及危险废物资源化利用和环境保护领域，尤其涉及一种危险废物焚烧飞灰的处理方法。本发明的处理方法包括以下步骤：混合、碱激发、成型及养护、水洗。具体为，先将危险废物焚烧飞灰与硅铝调质剂进行搅拌混合，得到第一混合物；然后向所述第一混合物中加入碱激发剂混合搅拌，得到地聚合物；再对所述地聚合物进行加压成型，得到成型样品，对成型样品进行养护；最后将经养护的所述成型样品浸泡在水中，使可溶性盐从所述危险废物焚烧飞灰中分离。本发明的处理方法能够使得危险废物焚烧飞灰中可溶性盐的分离难度降低。
Treatment method for hazardous waste incineration fly ash
一种危险废物焚烧飞灰的处理方法
ZHANG ZUOTAI (author) / WEI XUANKUN (author) / YAN FENG (author) / XIE FENG (author)
2021-07-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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