Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gelling solidification technology for household garbage incineration bottom ash
The invention discloses a gelatinization solidification technology for household garbage incineration bottom ash, and belongs to the field of household garbage incineration bottom ash solidification treatment. Comprising the following eight steps: selecting raw materials, selecting an alkali activator, selecting a stabilizer, selecting a curing agent, preparing the alkali activator and the stabilizer, stirring and mixing, forming, curing and the like. Heavy metals can be stabilized in a solidified body by taking alkali ash, sodium silicate and sodium hydroxide as alkali activators and sodium sulfide, disodium ethylene diamine tetraacetate and sodium phosphate as stabilizers by utilizing the gelling activity of the fly ash, and the heavy metals in the fly ash can be further stabilized by adding blast furnace slag as a curing agent, so that the stability of the solidified body is relatively good; the heavy metal leaching concentration does not exceed the specified national standard limit value, the compressive strength meets the geological landfill requirement, and compared with a traditional agent stabilization technology, gelatinization and solidification have universality, and the environmental compatibility of stabilized and solidified fly ash is good.
本发明公开了生活垃圾焚烧底灰的胶凝固化技术，属于生活垃圾焚烧底灰固化处理领域，包括原料选取、碱激发剂的选取、稳定剂的选取、固化剂的选取、碱激发剂和稳定剂的制备、搅拌混合、成型和固化等八个步骤以凝胶固化技术得到的生活垃圾焚烧底灰固化物，利用飞灰的胶凝活性通过碱灰、硅酸钠和氢氧化钠作为碱激发剂和硫化钠、乙二胺四乙酸二钠和磷酸钠作为稳定剂可以将重金属稳定在固化体中，并通过加入高炉矿渣作为固化剂可进一步稳定飞灰中的重金属，使得固化体稳定性较好，重金属浸出浓度均未超过规定的国家标准限值，而且抗压强度满足地质填埋要求，与传统药剂稳定化技术相比，胶凝固化具有普适性，且稳定化和固化后的飞灰环境相容性好。
Gelling solidification technology for household garbage incineration bottom ash
The invention discloses a gelatinization solidification technology for household garbage incineration bottom ash, and belongs to the field of household garbage incineration bottom ash solidification treatment. Comprising the following eight steps: selecting raw materials, selecting an alkali activator, selecting a stabilizer, selecting a curing agent, preparing the alkali activator and the stabilizer, stirring and mixing, forming, curing and the like. Heavy metals can be stabilized in a solidified body by taking alkali ash, sodium silicate and sodium hydroxide as alkali activators and sodium sulfide, disodium ethylene diamine tetraacetate and sodium phosphate as stabilizers by utilizing the gelling activity of the fly ash, and the heavy metals in the fly ash can be further stabilized by adding blast furnace slag as a curing agent, so that the stability of the solidified body is relatively good; the heavy metal leaching concentration does not exceed the specified national standard limit value, the compressive strength meets the geological landfill requirement, and compared with a traditional agent stabilization technology, gelatinization and solidification have universality, and the environmental compatibility of stabilized and solidified fly ash is good.
本发明公开了生活垃圾焚烧底灰的胶凝固化技术，属于生活垃圾焚烧底灰固化处理领域，包括原料选取、碱激发剂的选取、稳定剂的选取、固化剂的选取、碱激发剂和稳定剂的制备、搅拌混合、成型和固化等八个步骤以凝胶固化技术得到的生活垃圾焚烧底灰固化物，利用飞灰的胶凝活性通过碱灰、硅酸钠和氢氧化钠作为碱激发剂和硫化钠、乙二胺四乙酸二钠和磷酸钠作为稳定剂可以将重金属稳定在固化体中，并通过加入高炉矿渣作为固化剂可进一步稳定飞灰中的重金属，使得固化体稳定性较好，重金属浸出浓度均未超过规定的国家标准限值，而且抗压强度满足地质填埋要求，与传统药剂稳定化技术相比，胶凝固化具有普适性，且稳定化和固化后的飞灰环境相容性好。
Gelling solidification technology for household garbage incineration bottom ash
生活垃圾焚烧底灰的胶凝固化技术
NIE ZHIBO (Autor:in) / JUNG HYO-JUN (Autor:in) / HUANG GUODONG (Autor:in) / HAN JUNG-HO (Autor:in) / CHEN JUN (Autor:in)
29.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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