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Water filtering device with double-layer filter material,modified filtering material and its preparation method

A double-layer filter material and water filtration technology, applied to loose filter material filters, filter separation, separation methods, etc., can solve the problems of high cost of enhanced filtration methods, difficult algae adsorption, and short filtration cycle, etc., to achieve easy application and popularization, the effect of simple preparation method and long filtration period

Inactive Publication Date: 2006-07-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that algae are difficult to be adsorbed and easily penetrate the filter tank in the existing water filtration treatment, and the combination of fine particles in the water and the original organic matter in the water body is difficult to intercept, and the modified filter material is only suitable for cleaner water bodies, and Due to the problems of short filtration period and high cost of other enhanced filtration methods, a water filtration device with double-layer filter material, modified filter material and preparation method of modified filter material are provided

Method used

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  • Water filtering device with double-layer filter material,modified filtering material and its preparation method
  • Water filtering device with double-layer filter material,modified filtering material and its preparation method
  • Water filtering device with double-layer filter material,modified filtering material and its preparation method

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specific Embodiment approach 1

[0006] Specific implementation mode one: refer to figure 1 , the present embodiment is a water filtration device with double-layer filter material, which includes a water treatment reactor 1 and a filter material 2 installed in the water treatment reactor 1; the upper layer of the filter material 2 is anthracite with a thickness of 200 mm to 400 mm The filter material layer 3, the lower layer of the filter material 2 is a modified filter material layer 4 with a thickness of 500mm-800mm, wherein the particle size of the anthracite filter material is 0.8mm-1.8mm, and the particle size of the modified filter material is 0.5mm-2.0mm .

[0007] The upper anthracite filter material layer 3 of the filter material 2 of the present embodiment can remove some impurities in the water body, improve the dirt-holding capacity of the filter device, help to improve the water quality passing through the modified filter material layer 4, and prolong the modified filter material layer 4. Filtra...

specific Embodiment approach 2

[0008] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the modified filter material layer 4 and the anthracite filter material layer 3 are all graded with different particle sizes, and the coefficient of inhomogeneity K 80 are less than 2.0.

specific Embodiment approach 3

[0009] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the supporting layer 5 is laid below the modified filter material layer 4, and the supporting layer 5 is made of natural pebbles or gravel materials; the supporting layer Layer 5 is at least one layer, and the thickness of each layer is 50-110 mm, and the particle size of natural pebbles or gravel materials increases layer by layer from top to bottom.

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Abstract

The invention discloses a method of double-deck making water filter device and modified filtering material, wherein the double-deck making water filter device contains water disposal reactor (1) and filtering material (2) in the water disposal reactor (1); the modified filtering material is made of modified agent on the quartz sand or ceramicite. The method comprises the following steps: mixing one kind or more of ferric nitrate, aluminum chloride and manganese chloride salt solution; adding NaOH to prepare the modified filtering material; or mixing one or more of Fe2O3, Al2O3 and neo-ecological manganese dioxide powder; adding carrier to stir or oscillate to prepare the modified filtering material. The invention can remove impurity, organics and heavy metal in the water, which reduces the cost.

Description

technical field [0001] The invention relates to a water treatment device, a filter material used in the water treatment device and a preparation method of the filter material. Background technique [0002] The filtration process is a key process in water treatment and an indispensable link in drinking water treatment. It is directly related to the water quality of the factory water and is an important barrier for the water supply treatment process. Its main function is to remove the remaining water after precipitation. Turbidity, micro flocs, microorganisms, algae and organic matter. With the continuous development of industry and agriculture and the continuous improvement of people's living standards, my country's drinking water sources have been polluted to varying degrees. A large amount of industrial wastewater, domestic sewage and pesticides have been discharged into the water body, which contains a large amount of organic matter. When the temperature is relatively high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/22B01D39/06C02F1/00
Inventor 马军王群王娜
Owner HARBIN INST OF TECH
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