Microporous overcurrent ozone catalytic ceramic membrane for waste water deep treatment as well as preparation method and application method thereof

An ozone catalysis and advanced treatment technology, applied in water treatment parameter control, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of catalyst mass transfer efficiency or low effective catalytic area, etc. Improve catalytic efficiency and ensure the effect of advanced treatment
CN106745673AActive Publication Date: 2017-05-31JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
Publication Date
2017-05-31

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Abstract

The invention discloses a microporous overcurrent ozone catalytic ceramic membrane for waste water deep treatment as well as a preparation method and an application method thereof and belongs to the technical field of catalysts for waste water deep treatment. The catalytic ceramic membrane disclosed by the invention is prepared by the following steps: mixing pre-roasted and ground 400-600-mesh Al2O3 power with a catalytic component solution of dysprosium nitrate, molybdenum nitrate and manganous nitrate; and by taking hydroxypropyl methyl cellulose, polyethylene glycol and an aqueous solution of dysprosium nitrate, molybdenum nitrate and manganous nitrate as a forming assistant, pasting, mixing, extruding and forming, drying and vacuum-sintering the mixture to obtain the microporous overcurrent ozone catalytic ceramic membrane. The microporous overcurrent ozone catalytic ceramic membrane prepared by the invention creatively couples a microporous overcurrent with a catalytic ozonation technology, so that waste water passes through micron order ducts of the ceramic membrane at a relatively high flow rate by means of an external pressure different action, and therefore, the mass transfer efficiency of ozone and organic matter pollutants and the surface of the catalyst is effectively accelerated and meanwhile, the micron order ducts developing in the catalyst hugely increase the effective catalytic area of a catalytic module in a unit volume.
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Description

technical field

[0001] The invention belongs to the technical field of catalysts for advanced wastewater treatment, and more specifically relates to a microporous overflow ozone catalytic ceramic membrane for advanced wastewater treatment and a preparation and application method thereof. Background technique

[0002] Advanced wastewater treatment refers to the need to further degrade the refractory pollutants in the wastewater after biochemical treatment to achieve a more stable treatment effect and meet higher discharge standards. Wastewater, especially industrial wastewater, often contains more nitrogen heterocycles, phosphorus heterocycles, chlorinated benzenes, nitrobenzenes, phenols, polycyclic aromatic hydrocarbons, saturated alkanes, and these substances have a stable structure , Most of them are hydrophobic and biologically toxic, relying solely on biochemical treatment, it is difficult to meet the standards, and it is necessary to carry out advanced treatment on the...

Claims

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