Fly ash solidification chelating agent is a commonly used material for treating heavy metal ions in industrial waste residue. Its main components include the following:
Fly ash (coal combustion ash): Fly ash is the waste generated during the coal combustion process, mainly composed of residual ash particles and minerals after coal combustion. Fly ash contains elements such as calcium, aluminum, and silicon, which can react with heavy metal ions.
Chelating agent: In curing chelating agents, chelating agents refer to compounds that can form stable complexes with heavy metal ions. Common chelating agents include polyhydroxy compounds (such as hydrated iron oxide), organic acids (such as citric acid, ethylenediaminetetraacetic acid), etc. These chelating agents can combine with heavy metal ions to form complexes, making them less soluble and less migratory.
Auxiliary materials: In order to improve the effectiveness and processing performance of curing chelating agents, it is often necessary to add some auxiliary materials. For example, cementitious materials (such as cement) can increase the strength and stability of the curing agent; Fillers (such as sand and powder) can adjust the flowability and filling ability of the curing agent.
It should be noted that the specific composition and ratio of fly ash solidification chelating agents may vary depending on the product and manufacturer. In practical applications, appropriate curing chelating agents should be selected based on the processing object and requirements, and relevant usage guidelines and safety operating procedures should be followed.