Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method and application of magnesium salt modified geopolymer
The invention discloses preparation of a magnesium salt modified geopolymer and application of the magnesium salt modified geopolymer to synchronous and efficient recovery of nitrogen and phosphorus in wastewater. Metakaolin and a sodium hydroxide aqueous solution are added into a stirring device to be stirred, a sodium type geopolymer is obtained through thermal curing, the sodium type geopolymer is crushed and sieved, mixed with an isometric magnesium chloride solution to be steeped overnight and dried, and the magnesium salt modified geopolymer is obtained. The nitrogen and phosphorus recovery material has the advantages of being wide in raw material source, simple in preparation process and the like, synchronous and efficient recovery of nitrogen and phosphorus resources in water can be achieved, the obtained recovery product can serve as a high-quality slow-release fertilizer, nutrient elements needed by plant growth can be provided when the nitrogen and phosphorus recovery material is applied to soil, and the nitrogen and phosphorus recovery material can be applied to soil. And heavy metal pollution in soil can be synergistically prevented and controlled, and the application prospect is wide.
本发明公开了一种镁盐改性地质聚合物的制备及其同步高效回收废水中氮磷的应用，将偏高岭土和氢氧化钠的水溶液加入搅拌装置中进行拌合，经热养护得到钠型地质聚合物，经破碎过筛后，与等体积的氯化镁溶液混合浸渍过夜、烘干，洗涤、干燥后得到镁盐改性地质聚合物即为氮磷回收材料，其具有原材料来源广泛、制备工艺简单等优势，能实现水中的氮磷资源同步、高效回收，所得回收产物可作为优质缓释肥料，施用于土壤不仅能提供植物生长所需的营养元素，还能协同阻控土壤中重金属污染，具有广阔的应用前景。
Preparation method and application of magnesium salt modified geopolymer
The invention discloses preparation of a magnesium salt modified geopolymer and application of the magnesium salt modified geopolymer to synchronous and efficient recovery of nitrogen and phosphorus in wastewater. Metakaolin and a sodium hydroxide aqueous solution are added into a stirring device to be stirred, a sodium type geopolymer is obtained through thermal curing, the sodium type geopolymer is crushed and sieved, mixed with an isometric magnesium chloride solution to be steeped overnight and dried, and the magnesium salt modified geopolymer is obtained. The nitrogen and phosphorus recovery material has the advantages of being wide in raw material source, simple in preparation process and the like, synchronous and efficient recovery of nitrogen and phosphorus resources in water can be achieved, the obtained recovery product can serve as a high-quality slow-release fertilizer, nutrient elements needed by plant growth can be provided when the nitrogen and phosphorus recovery material is applied to soil, and the nitrogen and phosphorus recovery material can be applied to soil. And heavy metal pollution in soil can be synergistically prevented and controlled, and the application prospect is wide.
本发明公开了一种镁盐改性地质聚合物的制备及其同步高效回收废水中氮磷的应用，将偏高岭土和氢氧化钠的水溶液加入搅拌装置中进行拌合，经热养护得到钠型地质聚合物，经破碎过筛后，与等体积的氯化镁溶液混合浸渍过夜、烘干，洗涤、干燥后得到镁盐改性地质聚合物即为氮磷回收材料，其具有原材料来源广泛、制备工艺简单等优势，能实现水中的氮磷资源同步、高效回收，所得回收产物可作为优质缓释肥料，施用于土壤不仅能提供植物生长所需的营养元素，还能协同阻控土壤中重金属污染，具有广阔的应用前景。
Preparation method and application of magnesium salt modified geopolymer
一种镁盐改性地质聚合物的制备方法及其应用
HE PANYANG (Autor:in) / WANG TIAN (Autor:in) / ZHANG XIAOMIN (Autor:in)
12.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
B01F
MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
,
Mischen, z.B. Lösen, Emulgieren, Dispergieren
/
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
/
C04B
Kalk
,
LIME
/
C05G
Mischungen aus Düngemitteln, die als einzelne von verschiedenen Unterklassen der Klasse C05 umfasst werden
,
MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05
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