A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a harmless treatment method for waste incineration fly ash. The method mainly comprises the following steps: fully mixing zeolite powder and fly ash according to a certain metering proportion, and carrying out ion exchange and adsorption on various heavy metals and harmful substances thereof in the fly ash by utilizing the unique ion exchange property and adsorption property of zeolite; and therefore, heavy metals and harmful substances thereof are prevented from escaping and leaching. The mixture of the fly ash and the zeolite powder can be used as an admixture of cement, mortar and concrete and becomes a component of the cement and the concrete. The mixture can also be used as a raw material for replacing clay to produce cement clinker, and is used for manufacturing sintered bricks, autoclaved aerated concrete, foam concrete, hollow bricks, sintered or non-sintered ceramsite and paving roads, and further for dam body construction, port construction, farmland potholes and low lands, coal mine subsidence areas and mine backfilling. The invention provides a method which is simple in treatment process, low in cost, low in equipment investment and capable of carrying out innocent treatment and resource utilization on the fly ash.
本发明的一种垃圾焚烧飞灰无害化处理的方法，主要是将沸石粉与飞灰按一定的计量比例进行充分的混合，利用沸石独特的离子交换性、吸附性对飞灰中的各类重金属及其有害物质进行离子交换和吸附，使其重金属及其有害物质不会逸出、浸出。混合后的飞灰和沸石粉混合物即可用于水泥、砂浆、混凝土的掺合料，并成为水泥、混凝土的组分，还能作为原料代替黏土生产水泥熟料的原料、制造烧结砖、蒸压加气混凝土、泡沫混凝土、空心砌砖、烧结或非烧结陶粒，铺筑道路；以及构筑坝体，建设港口，农田坑洼低地、煤矿塌陷区及矿井的回填。从而提供了一种处理过程简单、成本低、设备投资少，能够对飞灰进行无害化处理、资源化利用的方法。
The invention relates to a harmless treatment method for waste incineration fly ash. The method mainly comprises the following steps: fully mixing zeolite powder and fly ash according to a certain metering proportion, and carrying out ion exchange and adsorption on various heavy metals and harmful substances thereof in the fly ash by utilizing the unique ion exchange property and adsorption property of zeolite; and therefore, heavy metals and harmful substances thereof are prevented from escaping and leaching. The mixture of the fly ash and the zeolite powder can be used as an admixture of cement, mortar and concrete and becomes a component of the cement and the concrete. The mixture can also be used as a raw material for replacing clay to produce cement clinker, and is used for manufacturing sintered bricks, autoclaved aerated concrete, foam concrete, hollow bricks, sintered or non-sintered ceramsite and paving roads, and further for dam body construction, port construction, farmland potholes and low lands, coal mine subsidence areas and mine backfilling. The invention provides a method which is simple in treatment process, low in cost, low in equipment investment and capable of carrying out innocent treatment and resource utilization on the fly ash.
本发明的一种垃圾焚烧飞灰无害化处理的方法，主要是将沸石粉与飞灰按一定的计量比例进行充分的混合，利用沸石独特的离子交换性、吸附性对飞灰中的各类重金属及其有害物质进行离子交换和吸附，使其重金属及其有害物质不会逸出、浸出。混合后的飞灰和沸石粉混合物即可用于水泥、砂浆、混凝土的掺合料，并成为水泥、混凝土的组分，还能作为原料代替黏土生产水泥熟料的原料、制造烧结砖、蒸压加气混凝土、泡沫混凝土、空心砌砖、烧结或非烧结陶粒，铺筑道路；以及构筑坝体，建设港口，农田坑洼低地、煤矿塌陷区及矿井的回填。从而提供了一种处理过程简单、成本低、设备投资少，能够对飞灰进行无害化处理、资源化利用的方法。
Harmless treatment method for waste incineration fly ash
一种垃圾焚烧飞灰无害化处理的方法
SUN DAJIN (author)
2021-12-03
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
Harmless treatment method for waste incineration residues
| European Patent Office | 2024
Household waste incineration fly ash melting harmless co-treatment system
| European Patent Office | 2021
| European Patent Office | 2022