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A platform for research: civil engineering, architecture and urbanism
Curing agent and curing method for phosphogypsum waste residues
The invention provides a curing agent and a curing method for phosphogypsum waste residues. According to the invention, cement clinker, coal ash, an activating agent and mineral powder are used as rawmaterials; the synergistic effect of the raw materials is utilized; the consolidation properties of a material is improved; under the action of an aqueous medium, the cement clinker is easy to form polar ions OH<->, so dissolution and disintegration of phosphogypsum can be promoted; a strong alkaline environment is provided for the mineral powder; an alkaline excitation effect is generated; the reaction process is accelerated; and the mineral powder can provide hydration activity binding sites; and a solidified body with good mechanical properties and good chemical stability is generated after an activating reaction of the activating agent. According to the invention, a large amount of solid waste are consumed; resourceful utilization of the waste residues is achieved; the effect of treating waste with waste is achieved; and the solidification cost of phosphorus slags is reduced; the curing agent has high curing strength, effectively cures toxic and harmful substances in phosphogypsum, solves the problem of treatment of pollutants like phosphorus and arsenic in the phosphogypsum, effectively reduces environmental pollution and protects the environment; and an effective solution isprovided for resourceful utilization of the phosphogypsum.
本发明提供一种用于磷石膏废渣的固化剂及其固化方法，以水泥熟料、粉煤灰、活化剂和矿粉为原料，利用其之间的协同作用，提高材料的固结性能，水泥熟料在水介质作用下，易于形成极性离子OH，可以促进磷石膏溶解和解体，为矿粉提供较强的碱性环境，产生碱性激发作用，加快反应进程，矿粉能提供水化活性结合位点，通过活化剂活化反应后生成力学性能较好、化学稳定性好的固结体。本发明大量消纳了固体废弃物，实现了废渣的资源化利用，达到以废治废的效果，降低磷渣固结成本；具有固结强度高，有效地固化其中的有毒有害物质，解决磷石膏中磷、砷等污染物处理的难题，有效的降低其对环境污染，保护环境；为磷石膏资源化利用提供有效的解决方法。
Curing agent and curing method for phosphogypsum waste residues
The invention provides a curing agent and a curing method for phosphogypsum waste residues. According to the invention, cement clinker, coal ash, an activating agent and mineral powder are used as rawmaterials; the synergistic effect of the raw materials is utilized; the consolidation properties of a material is improved; under the action of an aqueous medium, the cement clinker is easy to form polar ions OH<->, so dissolution and disintegration of phosphogypsum can be promoted; a strong alkaline environment is provided for the mineral powder; an alkaline excitation effect is generated; the reaction process is accelerated; and the mineral powder can provide hydration activity binding sites; and a solidified body with good mechanical properties and good chemical stability is generated after an activating reaction of the activating agent. According to the invention, a large amount of solid waste are consumed; resourceful utilization of the waste residues is achieved; the effect of treating waste with waste is achieved; and the solidification cost of phosphorus slags is reduced; the curing agent has high curing strength, effectively cures toxic and harmful substances in phosphogypsum, solves the problem of treatment of pollutants like phosphorus and arsenic in the phosphogypsum, effectively reduces environmental pollution and protects the environment; and an effective solution isprovided for resourceful utilization of the phosphogypsum.
本发明提供一种用于磷石膏废渣的固化剂及其固化方法，以水泥熟料、粉煤灰、活化剂和矿粉为原料，利用其之间的协同作用，提高材料的固结性能，水泥熟料在水介质作用下，易于形成极性离子OH，可以促进磷石膏溶解和解体，为矿粉提供较强的碱性环境，产生碱性激发作用，加快反应进程，矿粉能提供水化活性结合位点，通过活化剂活化反应后生成力学性能较好、化学稳定性好的固结体。本发明大量消纳了固体废弃物，实现了废渣的资源化利用，达到以废治废的效果，降低磷渣固结成本；具有固结强度高，有效地固化其中的有毒有害物质，解决磷石膏中磷、砷等污染物处理的难题，有效的降低其对环境污染，保护环境；为磷石膏资源化利用提供有效的解决方法。
Curing agent and curing method for phosphogypsum waste residues
一种用于磷石膏废渣的固化剂及其固化方法
HOU HAOBO (author) / ZHANG JUNQUAN (author) / LUO JIE'ER (author) / ZHANG PENGJU (author) / LI WEI (author) / ZHANG XIAO (author) / LI WENHUI (author)
2020-05-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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