Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Heavy metal curing stabilizer for tailing treatment and application of heavy metal curing stabilizer
The invention discloses a heavy metal curing stabilizer for tailing treatment and application thereof, the heavy metal curing stabilizer is composed of active silicon solid waste and calcium-rich solid waste, and the weight ratio of Ca to Si is 1: 1-3: 1; wherein the active silicon solid waste is at least one of slag, active silica and rice hull ash; the calcium-rich solid waste is industrial waste gypsum or quick lime. The heavy metal curing stabilizer, the tailings and the water are prepared into slurry, the slurry is solidified, so that heavy metals such as lead, cadmium and chromium in the lead-zinc tailings can be fixed, and the heavy metal stabilization rate of the tailings is larger than 99%; the compressive strength of the heavy metal curing stabilizer and a consolidation body of tailings is larger than 4 MPa, the heavy metal curing stabilizer can be used as roadbed filler, and use of natural filler is reduced.
本发明公开了一种用于尾矿处理的重金属固化稳定剂及其应用，该重金属固化稳定剂由活性硅固体废弃物和富钙固体废弃物组成，其Ca/Si重量比为1:1～3:1；其中，活性硅固体废弃物为矿渣、活性硅土、稻壳灰中的至少一种；富钙固体废弃物为工业废弃石膏或生石灰。本发明将重金属固化稳定剂、尾矿、水制备成浆料，使浆料固结，即可固定铅锌尾矿中的铅、镉、铬等重金属，使得尾矿的重金属稳定化率＞99％；且该重金属固化稳定剂能与尾矿的固结体抗压强度＞4MPa，可以用作路基填料，减少天然填料的使用。
Heavy metal curing stabilizer for tailing treatment and application of heavy metal curing stabilizer
The invention discloses a heavy metal curing stabilizer for tailing treatment and application thereof, the heavy metal curing stabilizer is composed of active silicon solid waste and calcium-rich solid waste, and the weight ratio of Ca to Si is 1: 1-3: 1; wherein the active silicon solid waste is at least one of slag, active silica and rice hull ash; the calcium-rich solid waste is industrial waste gypsum or quick lime. The heavy metal curing stabilizer, the tailings and the water are prepared into slurry, the slurry is solidified, so that heavy metals such as lead, cadmium and chromium in the lead-zinc tailings can be fixed, and the heavy metal stabilization rate of the tailings is larger than 99%; the compressive strength of the heavy metal curing stabilizer and a consolidation body of tailings is larger than 4 MPa, the heavy metal curing stabilizer can be used as roadbed filler, and use of natural filler is reduced.
本发明公开了一种用于尾矿处理的重金属固化稳定剂及其应用，该重金属固化稳定剂由活性硅固体废弃物和富钙固体废弃物组成，其Ca/Si重量比为1:1～3:1；其中，活性硅固体废弃物为矿渣、活性硅土、稻壳灰中的至少一种；富钙固体废弃物为工业废弃石膏或生石灰。本发明将重金属固化稳定剂、尾矿、水制备成浆料，使浆料固结，即可固定铅锌尾矿中的铅、镉、铬等重金属，使得尾矿的重金属稳定化率＞99％；且该重金属固化稳定剂能与尾矿的固结体抗压强度＞4MPa，可以用作路基填料，减少天然填料的使用。
Heavy metal curing stabilizer for tailing treatment and application of heavy metal curing stabilizer
用于尾矿处理的重金属固化稳定剂及其应用
HOU HAOBO (Autor:in) / WANG HAOJIE (Autor:in) / JU CHENXUAN (Autor:in) / ZHOU MIN (Autor:in) / DONG YIQIE (Autor:in)
05.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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