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A platform for research: civil engineering, architecture and urbanism
Harmless filler for household garbage incineration fly ash as well as preparation method and application of harmless filler
The invention belongs to the technical field of harmless treatment of waste incineration fly ash, and particularly relates to harmless filler for household waste incineration fly ash as well as a preparation method and application of the harmless filler. The preparation method disclosed by the invention mainly comprises two parts, namely intensified pretreatment and harmless treatment, an excellent additive is provided for large-scale application of a mechanochemical degradation technology by matching the proportion of the fly ash and the ferrous sulfate, and the harmless filler for the household garbage incineration fly ash is obtained by combining a mechanochemical method. The method is applied to concrete or geopolymer raw materials. The method has the advantages of simple process flow, mild operation conditions, high effective energy conversion rate and good safety, and effectively realizes reduction, harmlessness and recycling of the fly ash; the heavy metal curing rate of the treated fly ash reaches 97% or above, and the dioxin degradation rate is 98.5% or above.
本发明属于垃圾焚烧飞灰无害化处理技术领域，具体涉及一种生活垃圾焚烧飞灰无害化填料及其制备方法、应用。本发明制备方法主要分为两个部分，强化预处理和无害化处置，通过配比飞灰和亚硫酸铁的比例，为机械化学降解技术规模化应用提供一种出色的添加剂，结合机械化学法，获得生活垃圾焚烧飞灰无害化填料，应用于混凝土或者地质聚合物原料。具有工艺流程简单、作业条件温和、有效能转化率高、安全性好，有效实现飞灰的减量化、无害化、资源化；处置后的飞灰重金属固化率达到97%以上，二恶英降解率在98.5%以上。
Harmless filler for household garbage incineration fly ash as well as preparation method and application of harmless filler
The invention belongs to the technical field of harmless treatment of waste incineration fly ash, and particularly relates to harmless filler for household waste incineration fly ash as well as a preparation method and application of the harmless filler. The preparation method disclosed by the invention mainly comprises two parts, namely intensified pretreatment and harmless treatment, an excellent additive is provided for large-scale application of a mechanochemical degradation technology by matching the proportion of the fly ash and the ferrous sulfate, and the harmless filler for the household garbage incineration fly ash is obtained by combining a mechanochemical method. The method is applied to concrete or geopolymer raw materials. The method has the advantages of simple process flow, mild operation conditions, high effective energy conversion rate and good safety, and effectively realizes reduction, harmlessness and recycling of the fly ash; the heavy metal curing rate of the treated fly ash reaches 97% or above, and the dioxin degradation rate is 98.5% or above.
本发明属于垃圾焚烧飞灰无害化处理技术领域，具体涉及一种生活垃圾焚烧飞灰无害化填料及其制备方法、应用。本发明制备方法主要分为两个部分，强化预处理和无害化处置，通过配比飞灰和亚硫酸铁的比例，为机械化学降解技术规模化应用提供一种出色的添加剂，结合机械化学法，获得生活垃圾焚烧飞灰无害化填料，应用于混凝土或者地质聚合物原料。具有工艺流程简单、作业条件温和、有效能转化率高、安全性好，有效实现飞灰的减量化、无害化、资源化；处置后的飞灰重金属固化率达到97%以上，二恶英降解率在98.5%以上。
Harmless filler for household garbage incineration fly ash as well as preparation method and application of harmless filler
一种生活垃圾焚烧飞灰无害化填料及其制备方法、应用
LIU JIANLEI (author) / YE ZHEN (author) / TONG QIANG (author) / CHEN FEIFEI (author)
2022-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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