Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Curing agent for curing soil polluted by heavy metal cadmium as well as preparation method and application of curing agent
The invention discloses a curing agent for curing heavy metal cadmium polluted soil, the curing agent comprises slag, red mud, carbide slag and phosphogypsum, the mass ratio of the red mud to the slag is 1: (0.5-2), and the doping amount of the carbide slag and the phosphogypsum is 10%-20% of the total mass of the red mud and the slag. The red mud can be used as an auxiliary cementing material of the slag, and the carbide slag and the ardealite can effectively stimulate the activity of the red mud and the slag, so that the curing effect can be better achieved. The preparation method is simple and convenient, low in cost and good in performance, the prepared environment-friendly curing agent belongs to a full-solid-waste-based curing agent and is different from existing cement-based and lime-based curing agents, the environment-friendly curing agent can replace traditional curing agents such as cement and lime, and the problems of production cost, production energy consumption, carbon emission and the like are solved. Meanwhile, the curing agent not only can be used as a way for recycling solid wastes such as red mud and the like to avoid a certain environmental risk caused by accumulation, but also can be used as an efficient, economic and environment-friendly novel curing agent for repairing heavy metal cadmium pollution.
本发明公开了一种固化重金属镉污染土的固化剂，包括矿渣、赤泥、电石渣和磷石膏，赤泥与矿渣的质量比为1:(0.5～2)，电石渣和磷石膏掺量均为赤泥和矿渣总质量的10％～20％。赤泥可以作为矿渣的辅助胶凝材料，电石渣和磷石膏可以有效激发赤泥和矿渣活性，从而可以更好地达到固化效果。本发明制备方法简单方便、成本低廉且性能良好，制备的环保固化剂属于全固废基固化剂，不同于现有水泥基与石灰基固化剂，该环保固化剂可替代传统固化剂水泥、石灰等的使用，减少生产成本、生产能耗、碳排放等问题。同时不仅可以作为赤泥等固废再利用的途径，避免堆积而产生一定的环境风险，也作为修复重金属镉污染的高效、经济和环保的新型固化剂。
Curing agent for curing soil polluted by heavy metal cadmium as well as preparation method and application of curing agent
The invention discloses a curing agent for curing heavy metal cadmium polluted soil, the curing agent comprises slag, red mud, carbide slag and phosphogypsum, the mass ratio of the red mud to the slag is 1: (0.5-2), and the doping amount of the carbide slag and the phosphogypsum is 10%-20% of the total mass of the red mud and the slag. The red mud can be used as an auxiliary cementing material of the slag, and the carbide slag and the ardealite can effectively stimulate the activity of the red mud and the slag, so that the curing effect can be better achieved. The preparation method is simple and convenient, low in cost and good in performance, the prepared environment-friendly curing agent belongs to a full-solid-waste-based curing agent and is different from existing cement-based and lime-based curing agents, the environment-friendly curing agent can replace traditional curing agents such as cement and lime, and the problems of production cost, production energy consumption, carbon emission and the like are solved. Meanwhile, the curing agent not only can be used as a way for recycling solid wastes such as red mud and the like to avoid a certain environmental risk caused by accumulation, but also can be used as an efficient, economic and environment-friendly novel curing agent for repairing heavy metal cadmium pollution.
本发明公开了一种固化重金属镉污染土的固化剂，包括矿渣、赤泥、电石渣和磷石膏，赤泥与矿渣的质量比为1:(0.5～2)，电石渣和磷石膏掺量均为赤泥和矿渣总质量的10％～20％。赤泥可以作为矿渣的辅助胶凝材料，电石渣和磷石膏可以有效激发赤泥和矿渣活性，从而可以更好地达到固化效果。本发明制备方法简单方便、成本低廉且性能良好，制备的环保固化剂属于全固废基固化剂，不同于现有水泥基与石灰基固化剂，该环保固化剂可替代传统固化剂水泥、石灰等的使用，减少生产成本、生产能耗、碳排放等问题。同时不仅可以作为赤泥等固废再利用的途径，避免堆积而产生一定的环境风险，也作为修复重金属镉污染的高效、经济和环保的新型固化剂。
Curing agent for curing soil polluted by heavy metal cadmium as well as preparation method and application of curing agent
一种固化重金属镉污染土的固化剂及制备方法和应用
CHEN TAO (Autor:in) / HE BIN (Autor:in) / WANG LINHAO (Autor:in) / MA FULI (Autor:in) / HAN PENGJU (Autor:in) / BAI XIAOHONG (Autor:in) / LIU JIAJIANG (Autor:in) / ZHU JIAMIN (Autor:in) / CHU DONGXIN (Autor:in) / LIU KENAN (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Curing agent for repairing heavy metal polluted soil and application thereof
| Europäisches Patentamt | 2021
Soft soil curing agent, method for curing soft soil and application of soft soil curing agent
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2024
Steel slag-based curing agent and application thereof in curing nickel-containing polluted soil
| Europäisches Patentamt | 2023