Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Catalytic functional ceramic membrane as well as preparation method and application thereof
The invention provides a preparation method of a catalytic functional ceramic membrane. The method comprises the following steps: preparing catalytic active particles by using a reversed-phase microemulsion; preparing a ceramic membrane blend; (3) preparing a mixed pug; and preparing a molded prefabricated body through sintering: carrying out gradient heating sintering on a sintered prefabricatedbody to prepare the ceramic membrane. The invention also provides the catalytic ceramic membrane prepared by the method and application of the catalytic ceramic membrane in water treatment. The catalytic ceramic membrane provided by the invention forms a bicontinuous phase structure, and no heavy metal is leached after long-time test; the water permeability is excellent; the turbidity removal ratereaches 99.9 percent or higher; the removal rate on dissolved organic carbon (DOC) is more than 85%; the total organic carbon removal rate is 80% or above; the removal rate of CODMn is 85% or above;under the condition of the same oxidant dosage, the catalytic efficiency is improved by more than 20% compared with the catalytic efficiency of a catalytic ceramic membrane prepared by an impregnationmethod and a doping method.
本发明提供了一种催化功能性陶瓷膜的制备方法，所述方法包括如下步骤：通过反相微乳液制备催化活性颗粒；制备陶瓷膜共混料；(3)制备混合泥料；通过烧结制备成型预制体：将烧结预制体进行梯度升温烧结，制得所述陶瓷膜。本发明还提供了由所述方法制得的催化陶瓷膜以及所述催化陶瓷膜在在水处理中的应用。本发明的催化陶瓷膜形成双连续相结构，长时间测试无重金属浸出；透水性优异；对浊度去除率达99.9％以上；溶解性有机碳(DOC)去除率85％以上；总有机碳去除率80％以上；CODMn去除率85％以上；在同样氧化剂用量条件下，催化效率较浸渍法与掺杂法制备催化陶瓷膜的催化效率提升20％以上。
Catalytic functional ceramic membrane as well as preparation method and application thereof
The invention provides a preparation method of a catalytic functional ceramic membrane. The method comprises the following steps: preparing catalytic active particles by using a reversed-phase microemulsion; preparing a ceramic membrane blend; (3) preparing a mixed pug; and preparing a molded prefabricated body through sintering: carrying out gradient heating sintering on a sintered prefabricatedbody to prepare the ceramic membrane. The invention also provides the catalytic ceramic membrane prepared by the method and application of the catalytic ceramic membrane in water treatment. The catalytic ceramic membrane provided by the invention forms a bicontinuous phase structure, and no heavy metal is leached after long-time test; the water permeability is excellent; the turbidity removal ratereaches 99.9 percent or higher; the removal rate on dissolved organic carbon (DOC) is more than 85%; the total organic carbon removal rate is 80% or above; the removal rate of CODMn is 85% or above;under the condition of the same oxidant dosage, the catalytic efficiency is improved by more than 20% compared with the catalytic efficiency of a catalytic ceramic membrane prepared by an impregnationmethod and a doping method.
本发明提供了一种催化功能性陶瓷膜的制备方法，所述方法包括如下步骤：通过反相微乳液制备催化活性颗粒；制备陶瓷膜共混料；(3)制备混合泥料；通过烧结制备成型预制体：将烧结预制体进行梯度升温烧结，制得所述陶瓷膜。本发明还提供了由所述方法制得的催化陶瓷膜以及所述催化陶瓷膜在在水处理中的应用。本发明的催化陶瓷膜形成双连续相结构，长时间测试无重金属浸出；透水性优异；对浊度去除率达99.9％以上；溶解性有机碳(DOC)去除率85％以上；总有机碳去除率80％以上；CODMn去除率85％以上；在同样氧化剂用量条件下，催化效率较浸渍法与掺杂法制备催化陶瓷膜的催化效率提升20％以上。
Catalytic functional ceramic membrane as well as preparation method and application thereof
一种催化功能性陶瓷膜及其制备方法和应用
CHENG XIQUAN (Autor:in) / MA JUN (Autor:in) / ZHANG YINGJIE (Autor:in) / ZHANG GUOYU (Autor:in) / WANG KAI (Autor:in)
04.12.2020
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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