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Method for preparing water treatment filter material from waste red brick block

A technology of water treatment and filter material, which is applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of small specific surface area, rough surface, and low porosity, and achieve large specific surface area, rough surface, and porosity high effect

Inactive Publication Date: 2014-08-13
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Quartz sand has a good removal rate for SS, but due to its high density, small specific surface area, and low porosity, the head loss increases rapidly and the consumption of flushing water is large, so it is generally used in the water production process of drinking water plants
The appearance of ceramsite is spherical, and it has the characteristics of rough surface, moderate density, high strength, abrasion resistance, large fixed biomass, fast film formation, etc. It is widely used in sewage treatment, but high temperature sintering is required in the production process, so the production capacity high consumption
Zeolite has ion exchange performance, acid resistance and catalytic performance, but its pore size is relatively small, easy to block, and has high backwash resistance. It is generally used for nitrogen-containing sewage treatment
Activated carbon has adsorption effect on various pollutants, and the adsorption effect is good, but the cost is high, and it is generally used in drinking water treatment or sewage emergency treatment and other processes

Method used

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  • Method for preparing water treatment filter material from waste red brick block
  • Method for preparing water treatment filter material from waste red brick block
  • Method for preparing water treatment filter material from waste red brick block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] as attached figure 1 As shown, 10 tons of waste red brick blocks from construction waste are sent to the impact crusher 2 through the belt conveyor 1 for crushing; the crushed components are sent to the circular vibrating screen 4 by the belt conveyor 3 for screening. Obtain large particle fragments, finished filter material specification A, finished filter material specification B, finished filter material specification C, and large particle fragments are sent back to the impact crusher 2 by the belt conveyor 5 for secondary crushing.

[0032] The characteristics of the discarded red brick blocks of construction waste used in the present invention are: the maximum diameter is no more than 250mm, and it is a kind of construction waste.

[0033] The main parameters of belt conveyor 1, belt conveyor 3 and belt conveyor 5 adopted in the present invention are: belt width 400mm, conveying length 12-20m, power 2.2-4kW, conveying speed 1.25-2.0m / s, conveying capacity 10-20t / h...

Embodiment 2-5

[0041] Embodiments 2-5 have the same properties as the construction waste waste red brick blocks of Embodiment 1, but the crushing quality is different. The equipment belt conveyor 1, impact crusher 2, belt conveyor 3, circular vibrating screen 4, and belt conveyor 5 have the same characteristics. The yields of the finished filter material specification A, the finished filter material specification B, and the finished filter material C are different. The output of the finished filter material obtained in Examples 1-5 is shown in Table 1, and the physical and chemical performance parameters of the finished filter material are shown in Table 2.

[0042] Table 1

[0043]

[0044] Table 2

[0045]

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PUM

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Abstract

The invention discloses a method for preparing water treatment filter materials with three purposes from waste red brick blocks and belongs to the technical field of wastewater treatment. The invention mainly aims at the problem of hard disposal of construction waste red brick blocks. Waste brick blocks are subjected to crushing, sieving and grading treatment method to prepare filter materials with three particle specifications used in the treatment of sewage. The water treatment filter materials provided by the invention have rough surface, large specific surface area and high porosity, can be used as biological carriers, not only have filtration and adsorption effects but also have no need for sintering and no secondary pollution to the environment; and the phosphatic precipitation of the calcium and magnesium ions in the waste brick blocks can remove phosphate in water phosphorus, so as to turn the construction waste red brick blocks into treasures.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to a method for preparing water treatment filter material from waste red brick blocks in the demolition process of waste buildings. Background technique [0002] With the acceleration of industrialization and urbanization, my country's real estate industry has developed rapidly in recent years. What followed was an increasing amount of construction waste, mainly discarded red bricks, generated from the renovation of the old city, and its disposal has become a major problem to be solved in the process of urbanization in my country. At present, in addition to partial backfilling, most of the waste red brick blocks of construction waste are disposed of in centralized landfill, which not only occupies land, but also pollutes the environment. The red bricks used in early buildings in my country are basically prepared from clay, shale, coal gangue, etc. through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/20
Inventor 张文艺冯国勇胡林潮李文昱刘芳周新程
Owner CHANGZHOU UNIV
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