Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of iron-manganese composite-based porous polyurethane cement sponge filler
The invention discloses a preparation method of an iron-manganese composite-based porous polyurethane cement sponge filler, belongs to the technical field of sponge fillers, and solves the problems of some defects in the existing sulfur autotrophic denitrification technology. The preparation method comprises the following steps: weighing ordinary Portland cement, anhydrous manganese chloride (MnC 12) and ferrous chloride tetrahydrate (FeC 12. 4H2O) according to a required ratio, uniformly mixing and stirring, preparing an aqueous phase solution containing an adhesive polyvinyl alcohol (PVA) and a dispersant sodium polyacrylate (SPAN), mixing the solid raw materials with the aqueous phase solution, adding polyurethane sponge into the mixture, stirring, freezing and shaping, and carrying out thermal insulation treatment on the mixture to obtain the cement-based composite material. The iron-manganese composite based porous polyurethane cement sponge filler has the advantages that the iron-manganese composite based porous polyurethane cement sponge filler is large in specific surface area, porosity, rough in surface and good in hydrophilicity, and accordingly the iron-manganese composite based porous polyurethane cement sponge filler can be used for preparing the porous polyurethane cement sponge filler; the efficient adsorption capacity on phosphorus and the fixing capacity on sulfur are achieved, and the excellent environment purification performance and the excellent adhesiveness on microorganisms are shown.
一种铁锰复合基多孔聚氨酯水泥海绵填料的制备方法，属于海绵填料技术领域，解决了现有的硫自养反硝化技术存在一些缺陷问题；称量出所需比例的普通硅酸盐水泥、无水氯化锰(MnC l2)以及四水氯化亚铁(FeC l2·4H2O)后，将其混合搅拌均匀，配制含有粘接剂聚乙烯醇(PVA)和分散剂聚丙烯酸钠(SPAN)的水相溶液，将固体原料和水相溶液混合，向混合物中加入聚氨酯海绵搅拌，冷冻塑形后，进行冷冻干燥，再进行蒸汽养护，接着，取出冷却到室温之后，使用去离子水冲洗材料后，进行最后的烘干处理，本发明的铁锰复合基多孔聚氨酯水泥海绵填料，以其巨大的比表面积、孔隙率、粗糙的表面和良好的亲水性，以及对磷的高效吸附和硫的固定能力，展现出了卓越的环境净化性能和微生物优秀的附着性。
Preparation method of iron-manganese composite-based porous polyurethane cement sponge filler
The invention discloses a preparation method of an iron-manganese composite-based porous polyurethane cement sponge filler, belongs to the technical field of sponge fillers, and solves the problems of some defects in the existing sulfur autotrophic denitrification technology. The preparation method comprises the following steps: weighing ordinary Portland cement, anhydrous manganese chloride (MnC 12) and ferrous chloride tetrahydrate (FeC 12. 4H2O) according to a required ratio, uniformly mixing and stirring, preparing an aqueous phase solution containing an adhesive polyvinyl alcohol (PVA) and a dispersant sodium polyacrylate (SPAN), mixing the solid raw materials with the aqueous phase solution, adding polyurethane sponge into the mixture, stirring, freezing and shaping, and carrying out thermal insulation treatment on the mixture to obtain the cement-based composite material. The iron-manganese composite based porous polyurethane cement sponge filler has the advantages that the iron-manganese composite based porous polyurethane cement sponge filler is large in specific surface area, porosity, rough in surface and good in hydrophilicity, and accordingly the iron-manganese composite based porous polyurethane cement sponge filler can be used for preparing the porous polyurethane cement sponge filler; the efficient adsorption capacity on phosphorus and the fixing capacity on sulfur are achieved, and the excellent environment purification performance and the excellent adhesiveness on microorganisms are shown.
一种铁锰复合基多孔聚氨酯水泥海绵填料的制备方法，属于海绵填料技术领域，解决了现有的硫自养反硝化技术存在一些缺陷问题；称量出所需比例的普通硅酸盐水泥、无水氯化锰(MnC l2)以及四水氯化亚铁(FeC l2·4H2O)后，将其混合搅拌均匀，配制含有粘接剂聚乙烯醇(PVA)和分散剂聚丙烯酸钠(SPAN)的水相溶液，将固体原料和水相溶液混合，向混合物中加入聚氨酯海绵搅拌，冷冻塑形后，进行冷冻干燥，再进行蒸汽养护，接着，取出冷却到室温之后，使用去离子水冲洗材料后，进行最后的烘干处理，本发明的铁锰复合基多孔聚氨酯水泥海绵填料，以其巨大的比表面积、孔隙率、粗糙的表面和良好的亲水性，以及对磷的高效吸附和硫的固定能力，展现出了卓越的环境净化性能和微生物优秀的附着性。
Preparation method of iron-manganese composite-based porous polyurethane cement sponge filler
一种铁锰复合基多孔聚氨酯水泥海绵填料的制备方法
PAN JIANXIN (Autor:in) / XU YANGJIN (Autor:in) / HUANG TIANQI (Autor:in) / YE ZHUOHANG (Autor:in) / ZHUANG TAO (Autor:in)
29.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
C04B
Kalk
,
LIME
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