Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nano cellulose crystal composite fly ash geopolymer material and preparation method thereof
The invention belongs to the field of dangerous solid waste treatment and ecological materials, and relates to a nanocellulose crystal composite fly ash geopolymer material which is used for solidifying heavy metal ions in municipal solid waste incineration fly ash. The raw materials comprise 1-5 parts of nano cellulose, 80-180 parts of fly ash, 20-120 parts of municipal solid waste incineration fly ash, 40-80 parts of water glass, 10-14 parts of sodium hydroxide and 40-120 parts of mixing water. The nanocellulose crystal and the solid waste material are adopted as the raw materials, the method is economical and applicable, the operation process is simple, short-circuit diffusion and steric hindrance effects of the nanocellulose crystal are effectively utilized to promote geopolymer reaction, and on the basis of optimizing the physical and mechanical properties of a solidified body, the geopolymer reaction is promoted. The electrostatic adsorption, complexation reaction and ion exchange effects of the nanocellulose crystal are fully exerted, and the nanocellulose crystal and a specific zeolite-like structure of a geopolymer hydration product cooperate to cure heavy metals in the fly ash, so that the curing efficiency of a cured body on heavy metal ions in the fly ash is remarkably improved.
本发明属于危险固体废弃物处理与生态材料领域，涉及一种纳米纤维素晶体复合粉煤灰地聚物材料，用于固化城市生活垃圾焚烧飞灰中的重金属离子。其原材料为：纳米纤维素1‑5份、粉煤灰80‑180份、城市生活垃圾焚烧飞灰20‑120份、水玻璃40‑80份、氢氧化钠：10‑14份、拌合水：40‑120份。本发明采用纳米纤维素晶体与固废材料为原材料，经济适用，操作工艺简单，有效利用纳米纤维素晶体的短路扩散、空间位阻效应促进地聚物反应的进行，在优化固化体的物理、力学性能的基础上，充分发挥纳米纤维素晶体所具有的静电吸附、络合反应和离子交换作用，并与地聚物水化产物特有的类沸石结构协同固化飞灰中的重金属，显著提升固化体对飞灰中重金属离子的固化效率。
Nano cellulose crystal composite fly ash geopolymer material and preparation method thereof
The invention belongs to the field of dangerous solid waste treatment and ecological materials, and relates to a nanocellulose crystal composite fly ash geopolymer material which is used for solidifying heavy metal ions in municipal solid waste incineration fly ash. The raw materials comprise 1-5 parts of nano cellulose, 80-180 parts of fly ash, 20-120 parts of municipal solid waste incineration fly ash, 40-80 parts of water glass, 10-14 parts of sodium hydroxide and 40-120 parts of mixing water. The nanocellulose crystal and the solid waste material are adopted as the raw materials, the method is economical and applicable, the operation process is simple, short-circuit diffusion and steric hindrance effects of the nanocellulose crystal are effectively utilized to promote geopolymer reaction, and on the basis of optimizing the physical and mechanical properties of a solidified body, the geopolymer reaction is promoted. The electrostatic adsorption, complexation reaction and ion exchange effects of the nanocellulose crystal are fully exerted, and the nanocellulose crystal and a specific zeolite-like structure of a geopolymer hydration product cooperate to cure heavy metals in the fly ash, so that the curing efficiency of a cured body on heavy metal ions in the fly ash is remarkably improved.
本发明属于危险固体废弃物处理与生态材料领域，涉及一种纳米纤维素晶体复合粉煤灰地聚物材料，用于固化城市生活垃圾焚烧飞灰中的重金属离子。其原材料为：纳米纤维素1‑5份、粉煤灰80‑180份、城市生活垃圾焚烧飞灰20‑120份、水玻璃40‑80份、氢氧化钠：10‑14份、拌合水：40‑120份。本发明采用纳米纤维素晶体与固废材料为原材料，经济适用，操作工艺简单，有效利用纳米纤维素晶体的短路扩散、空间位阻效应促进地聚物反应的进行，在优化固化体的物理、力学性能的基础上，充分发挥纳米纤维素晶体所具有的静电吸附、络合反应和离子交换作用，并与地聚物水化产物特有的类沸石结构协同固化飞灰中的重金属，显著提升固化体对飞灰中重金属离子的固化效率。
Nano cellulose crystal composite fly ash geopolymer material and preparation method thereof
一种纳米纤维素晶体复合粉煤灰地聚物材料及制备方法
WANG BAOMIN (Autor:in) / WANG WANLI (Autor:in) / FAN CHENGCHENG (Autor:in) / AI HONGMEI (Autor:in) / LI TIANRU (Autor:in) / HAN XIAO (Autor:in) / XING YUNQING (Autor:in)
14.10.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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