Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for solidifying soluble impurities in ardealite by using calcium-containing alkaline slag
The invention belongs to the technical field of solid waste comprehensive treatment, and discloses a method for solidifying soluble impurities in ardealite by using calcium-containing alkaline slag, which comprises the following steps: S1, adding the calcium-containing alkaline slag into ardealite, and uniformly stirring to obtain a mixed material; s2, adding water into the mixed material to form slurry, and stirring to generate curing reaction; and S3, carrying out wet stockpiling on the cured slurry, or carrying out dry stockpiling after concentration and filter pressing. According to the invention, soluble fluorine and soluble phosphorus in the ardealite generate calcium fluoride, calcium phosphate and other precipitates by using CaO, MgO and other active components contained in the calcium-containing alkaline slag, and meanwhile, metal ions in the ardealite are precipitated in an alkaline environment, so that harmful components in the ardealite and the alkaline slag are prevented from being migrated and diffused to the environment, and the purpose of treating waste with waste is achieved.
本发明属于固废综合治理技术领域，公开了一种含钙碱性渣固化磷石膏可溶态杂质的方法，包括以下步骤：S1，将含钙碱性渣加入磷石膏中，搅拌均匀，得到混合物料；S2，向混合物料中加入水形成料浆，搅拌发生固化反应；S3，将固化后的料浆进行湿法堆存，或浓缩压滤后干法堆存。本发明利用含钙碱性渣中含有的CaO、MgO等活性成分使磷石膏中可溶氟和可溶磷生成氟化钙、磷酸钙等沉淀，同时碱性环境使磷石膏中的金属离子沉淀，避免了磷石膏和碱性渣中有害成分向环境中迁移扩散，达到以废治废的目的。
Method for solidifying soluble impurities in ardealite by using calcium-containing alkaline slag
The invention belongs to the technical field of solid waste comprehensive treatment, and discloses a method for solidifying soluble impurities in ardealite by using calcium-containing alkaline slag, which comprises the following steps: S1, adding the calcium-containing alkaline slag into ardealite, and uniformly stirring to obtain a mixed material; s2, adding water into the mixed material to form slurry, and stirring to generate curing reaction; and S3, carrying out wet stockpiling on the cured slurry, or carrying out dry stockpiling after concentration and filter pressing. According to the invention, soluble fluorine and soluble phosphorus in the ardealite generate calcium fluoride, calcium phosphate and other precipitates by using CaO, MgO and other active components contained in the calcium-containing alkaline slag, and meanwhile, metal ions in the ardealite are precipitated in an alkaline environment, so that harmful components in the ardealite and the alkaline slag are prevented from being migrated and diffused to the environment, and the purpose of treating waste with waste is achieved.
本发明属于固废综合治理技术领域，公开了一种含钙碱性渣固化磷石膏可溶态杂质的方法，包括以下步骤：S1，将含钙碱性渣加入磷石膏中，搅拌均匀，得到混合物料；S2，向混合物料中加入水形成料浆，搅拌发生固化反应；S3，将固化后的料浆进行湿法堆存，或浓缩压滤后干法堆存。本发明利用含钙碱性渣中含有的CaO、MgO等活性成分使磷石膏中可溶氟和可溶磷生成氟化钙、磷酸钙等沉淀，同时碱性环境使磷石膏中的金属离子沉淀，避免了磷石膏和碱性渣中有害成分向环境中迁移扩散，达到以废治废的目的。
Method for solidifying soluble impurities in ardealite by using calcium-containing alkaline slag
一种含钙碱性渣固化磷石膏可溶态杂质的方法
DENG XIANGYI (Autor:in) / DONG WANQIANG (Autor:in) / GENG MENGXIANG (Autor:in) / CHI RU'AN (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
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