Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified iron tailing solid waste ceramsite as well as preparation method and application thereof
The invention belongs to the technical field of environmental engineering water treatment, and provides modified iron tailing solid waste ceramsite as well as a preparation method and application thereof, and the modified iron tailing solid waste ceramsite is prepared from the following raw materials in parts by mass: 60-80 parts of iron tailings, 19-39 parts of saw mud, 1-5 parts of a pore forming agent and 1-5 parts of a sodium silicate solution. The ceramsite provided by the invention has the volume density of 1.10 to 1.25 g/cm < 3 >, the strength of 5.8 to 7.1 MPa, the apparent porosity of 62 to 72 percent, the hydrochloric acid solubility of 0.8 to 1.3 percent and the ammonia nitrogen removal rate of 90.1 to 94.8 percent. The catalyst has the advantages of small volume density, large specific surface area, high strength and apparent porosity, low hydrochloric acid solubility, high ammonia nitrogen pertinence, high removal rate and the like. And after adsorption, recycling is convenient, the purpose of treating waste with waste is achieved, and the problem that a large amount of iron tailings and saw mud are accumulated is solved.
本发明属于环境工程水处理技术领域，提供了一种改性铁尾矿固废陶粒及其制备方法和应用，由包含下列质量份数的原料制备得到：铁尾矿60～80份、锯泥19～39份、造孔剂1～5份、硅酸钠溶液1～5份。本发明提供的陶粒体积密度为1.10～1.25g/cm3，强度为5.8～7.1MPa，显孔率为62～72％，盐酸可溶率0.8～1.3％，氨氮去除率为90.1～94.8％。具有体积密度小、比表面积大、强度和显气孔率高、盐酸可溶率低以及对氨氮针对性强，去除率高等优点。且吸附后便于回收，达到了以废治废的目的，也解决了铁尾矿和锯泥大量堆积的问题。
Modified iron tailing solid waste ceramsite as well as preparation method and application thereof
The invention belongs to the technical field of environmental engineering water treatment, and provides modified iron tailing solid waste ceramsite as well as a preparation method and application thereof, and the modified iron tailing solid waste ceramsite is prepared from the following raw materials in parts by mass: 60-80 parts of iron tailings, 19-39 parts of saw mud, 1-5 parts of a pore forming agent and 1-5 parts of a sodium silicate solution. The ceramsite provided by the invention has the volume density of 1.10 to 1.25 g/cm < 3 >, the strength of 5.8 to 7.1 MPa, the apparent porosity of 62 to 72 percent, the hydrochloric acid solubility of 0.8 to 1.3 percent and the ammonia nitrogen removal rate of 90.1 to 94.8 percent. The catalyst has the advantages of small volume density, large specific surface area, high strength and apparent porosity, low hydrochloric acid solubility, high ammonia nitrogen pertinence, high removal rate and the like. And after adsorption, recycling is convenient, the purpose of treating waste with waste is achieved, and the problem that a large amount of iron tailings and saw mud are accumulated is solved.
本发明属于环境工程水处理技术领域，提供了一种改性铁尾矿固废陶粒及其制备方法和应用，由包含下列质量份数的原料制备得到：铁尾矿60～80份、锯泥19～39份、造孔剂1～5份、硅酸钠溶液1～5份。本发明提供的陶粒体积密度为1.10～1.25g/cm3，强度为5.8～7.1MPa，显孔率为62～72％，盐酸可溶率0.8～1.3％，氨氮去除率为90.1～94.8％。具有体积密度小、比表面积大、强度和显气孔率高、盐酸可溶率低以及对氨氮针对性强，去除率高等优点。且吸附后便于回收，达到了以废治废的目的，也解决了铁尾矿和锯泥大量堆积的问题。
Modified iron tailing solid waste ceramsite as well as preparation method and application thereof
一种改性铁尾矿固废陶粒及其制备方法和应用
HU NANYAN (Autor:in) / LYU YOU (Autor:in) / YE YICHENG (Autor:in) / WANG QIHU (Autor:in) / LIU HAIPENG (Autor:in) / CHEN DUNXI (Autor:in) / WU YI (Autor:in) / HOU WENHAO (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
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