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Multi-stage series filtering system composed of porous ceramic filters and preparation method

A filter system, porous ceramic technology, applied in ceramic products, chemical instruments and methods, filtration treatment, etc., can solve problems such as unsatisfactory treatment effect, inability to effectively remove heavy metals in water, limited treatment capacity, etc.

Active Publication Date: 2021-04-27
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many types of household drinking water treatment devices on the market, but for some families in poor and remote areas, the price of these drinking water treatment devices is high
In response to this defect, a low-cost porous clay filter device and a silver-loaded porous clay filter device have appeared on the international market. The sterilization effect is remarkable, but this device cannot effectively remove heavy metals in water.
Since this porous ceramic filter device simply uses a porous ceramic filter element to treat drinking water, its processing capacity is limited, and the treatment effect is not ideal for water sources with serious pollution.

Method used

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  • Multi-stage series filtering system composed of porous ceramic filters and preparation method
  • Multi-stage series filtering system composed of porous ceramic filters and preparation method
  • Multi-stage series filtering system composed of porous ceramic filters and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as figure 1 As shown, the coating reaction generating device 1 includes a housing 101, an ultraviolet light source 102 and a supporting part; the supporting part includes a reactor base 105, a tray pillar 104 and an annular tray 103; the upper end of the housing is open, and the lower end is fixed to the supporting part; The ultraviolet light source is sealed with a glass lampshade and installed on the reactor base 105, and connected to the power supply; on the reactor base 105, a plurality of tray pillars are fixed on the circumference of the ultraviolet light source, and a circular ring-shaped pillar is placed on the tray pillar. Tray 103; as figure 2 As shown, it is a top view of the ring-shaped tray and the tray support in the coating reaction generating device, where the square boxes are respectively the positions of the four columnar tray supports;

[0061] Shell 101 is a glass shell without cover; Ultraviolet light source 102 is used to provide the light s...

Embodiment 2

[0063] Such as Figure 4 As shown, the multi-stage series filter system is surrounded by a shell, and the porous pottery tank filter unit and the porous ceramic plate filter unit are sequentially arranged in the shell along the water flow direction; the top of the shell is provided with a light source 201 and the water inlet 202, and the bottom is provided with a water outlet 213; the light source 201 is a full-spectrum bulb, which provides a light source for the coating on the inner surface of the first porous pottery pot, which contributes to the performance of its photocatalytic performance; the water inlet 202 is set to a cover, and the top is a light-transmitting material to prevent air When the pollutants enter the tank, it is convenient for external light to enter the tank through the cover; the water outlet 213 is provided with a water outlet valve;

[0064] Battery area 203 is as a part in the cover, and battery is housed therein, is connected with the first vibrating...

Embodiment 3

[0070] Figure 4 The design capacity of the No. 1 porous pottery pot is 6-8L. Add the pentavalent arsenic solution (1-100mg / L) into the first porous pottery pot. The concentration of pentavalent arsenic in water is detected, and the removal rate of pentavalent arsenic by the device is 85-99% through calculation. Calculated as follows:

[0071]

[0072] When the influent contains 10 3 ~10 6 When the Escherichia coli is cfu / mL, the concentration of Escherichia coli in the effluent is less than 1cfu / mL, and the removal rate of Escherichia coli by this device is greater than 99% through calculation.

[0073] In addition, various pollutants were added into deionized water to prepare water to be treated containing various pollutants, including 10-50 cfu / mL of Escherichia coli, 1.5 mg / L of 1,2-dichlorobenzene, 0.8 mg / L of xylene, 1.2mg / L of toluene, 0.1mg / L of arsenic and 1.5mg / L of fluoride. Press the switch button 204 to turn on the ultraviolet lamp, press the gear adjust...

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Abstract

The invention discloses a multi-stage series filtering system composed of porous ceramic filters and a preparation method, and belongs to the technical field of water quality purification and filtration. The multi-stage series filtering system is surrounded by a shell, and a porous pottery jar filtering unit and a porous pottery plate filtering unit are arranged in the shell; the porous pottery jar filtering unit is composed of a first porous pottery jar and a second porous pottery jar; the porous ceramic plate filtering unit is composed of a first porous ceramic plate and a second porous ceramic plate; and the space between the filtering units is filled with a mixed filtering material layer embedded with an ultrasonic vibrating reed. In the water flowing direction, water sequentially passes through the inner surfaces and the outer surfaces of the first porous pottery pot and the second porous pottery pot, and the inner surface and the outer surface of the first porous pottery pot are loaded with a silver / zinc oxide / carbon nano tube nano composite particle coating and carbon-nitrogen doped hexagonal wurtzite crystal form nano zinc oxide respectively; and a vesuvianite-based carbon-nitrogen-doped nano zinc oxide particle composite coating is loaded on the surfaces of the second porous pottery pot. The photocatalytic performance is achieved under illumination, organic pollutants in water are degraded, and the inactivation effect on microorganisms is achieved.

Description

technical field [0001] The invention belongs to the technical field of water purification and filtration, and in particular relates to a multi-stage serial filtration system composed of porous ceramic filters and a preparation method. Background technique [0002] The quality of drinking water directly affects human health. However, there are still many families in the world who do not have access to safe drinking water, especially in remote and impoverished areas in some developing countries. These areas lack centralized sewage treatment facilities and often do not have qualified sewage treatment plants. As a result, polluted surface water and groundwater are consumed by the inhabitants of these areas without treatment. However, there are a large number of pathogenic microorganisms, various organic pollutants and various heavy metals in these polluted water bodies. These pollutants seriously threaten human health. Therefore, it is of great significance to develop a dome...

Claims

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Application Information

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IPC IPC(8): C02F9/08C04B41/85C04B41/88C02F101/20C02F101/30
CPCC02F9/00C04B41/5116C04B41/5049C04B41/85C04B41/88C04B41/009C02F1/001C02F1/30C02F1/725C02F1/325C02F1/283C02F1/28C02F1/66C02F1/68C02F2305/10C02F2303/20C02F2101/30C02F2101/20C04B41/5001C04B41/4543C04B38/00C04B35/00
Inventor 黄敬黄国和姚尧张鹏陈秀娟吴宇炜赵凯爱德华·马克宾
Owner BEIJING NORMAL UNIVERSITY
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