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Building material product using radioactive blast furnace slag as blending material and method for processing sewage water

A technology of radioactivity and admixtures, applied in water/sewage treatment, sustainable waste treatment, chemical instruments and methods, etc., can solve problems such as high cost, complicated manufacturing methods, and affecting cement performance, and achieve good frost resistance, The effect of good thermal insulation performance

Inactive Publication Date: 2008-05-14
杨忠刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although CaSO 4 , BaSO 4 It can be used as an admixture of cement, but H 2 SO 4 The presence of will directly affect the performance of cement
Such as through the firing process, removal of H 2 SO 4 , its manufacturing method is complicated, the cost is high, and it is not practical

Method used

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  • Building material product using radioactive blast furnace slag as blending material and method for processing sewage water

Examples

Experimental program
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Effect test

example 1

[0016] Example 1: Sewage treatment by concrete water pipelines (urban comprehensive sewage)

[0017] will contain low levels of radioactive thorium 232 The blast furnace slag is formulated as the raw material for producing cement according to blast furnace slag: cement clinker: other auxiliary materials = 60:30:8:2 (weight percentage), and the special cement for sewage treatment is produced through the production process, and the cement is classified as special cement: Sand and gravel: admixture=40:50:10 (percentage by weight) is made into a water pipeline, and the sewage is directly contacted with this pipeline for 3 hours. The degradation rate is 40%, and the coliform group is killed by 99%. The α and β values ​​after treatment are all lower than the national standard.

example 2

[0018] Example 2: Concrete sedimentation tank for sewage treatment

[0019] low dose radioactive thorium 232 The blast furnace heavy slag is made into concrete by adding a small amount of water according to blast furnace heavy slag: fly ash: ordinary cement = 50:30:20 (weight percentage), and build a sedimentation tank with the concrete. Let the sewage settle in the pool for 4 hours, the COD degradation rate of the sewage is 50%, the coliform group is killed more than 99%, and the α and β values ​​after treatment are all lower than the national standard.

Description of drawings:

[0020] The accompanying drawing is a process diagram of producing rare earth waste slag.

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Abstract

The invention relates to a building material product using radioactive blast furnace slag as the admixture and the sewage treatment method; wherein, the building material product adopts blast furnace water quenched slag and blast furnace dry slag with radioactive polonium <232> substance as the admixture, which comprises special cement and cement elements used for sewage treatment. The invention has the advantages of low investment for sewage treatment, low use and maintenance cost, wide application range in sewage treatment field and no secondary radioactive pollution. Being used for the sewage treatment, the building material product can degrade COD by 30 to 55 percent, and kill coliform groups above 99 percent, the field radiation safety conforms to the GB6566-2001 standard, and the Alpha value and the Beta value of water after being treated are all lower than the indexes specified in national standards.

Description

1. Technical field: [0001] The invention relates to a method for treating sewage, and also relates to solid wastes containing low-dose radioactive thorium 232 Treatment method of blast furnace slag. 2. Background technology: [0002] Sewage contains a large amount of organic matter and bacteria. If not treated, it will cause serious harm to the environment. In particular, urban comprehensive sewage and industrial sewage need to be treated. Most of the existing treatment methods are flocculation and sedimentation methods, which have the disadvantages of large investment and incomplete treatment. And ZL901094.8 "Method for treating sewage with low-dose radioactive cement components"; ZL93108816.X "Cement used for water treatment and its production method"; ZL0019351.1 "Radioactive cement containing rare earth waste residue and its method for treating sewage ", although a low-dose rare earth waste residue treatment method has been found, the process for producing rare earth...

Claims

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Application Information

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IPC IPC(8): C04B18/14C04B18/08C02F1/00C02F1/50
CPCY02W30/91
Inventor 杨忠刚
Owner 杨忠刚
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