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Multi-medium stephanoporate water quality purifying permeable material

A technology for water purification and permeable materials, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc.

Inactive Publication Date: 2008-05-07
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the above inventions have fully utilized the regeneration of resources, these two patents have not yet involved in sewage purification.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Rice husk (commonly known as rice bran) is used as hard fiber biomass material, cinder (thermal power generation waste) is used as inorganic material, and ordinary Portland cement is used to make a multi-media porous water purification and permeable material. The material formula is as follows ( Ingredient percentages in parts per hundred, all by dry weight):

[0020] Rice husk (crushed): 10 parts;

[0021] Cinder: 40 parts;

[0022] The rest is ordinary Portland cement mortar (label C25): 50 parts.

[0023] Add water and stir evenly, then pour into the forming mold, reinforce the reinforcement, set the shape, and after drying, the multi-media porous water purification and permeable material with the following physical properties can be obtained:

[0024] Strength: MU5.0 ~ MU7.5 (MU-architecture brick strength grade code, the same below)

[0025] Water permeability rate: ≥5mm / s

[0026] The ratio of rice husk, cinder and cement mortar can be adjusted appropriately a...

Embodiment 2

[0028] The hard fiber biomass material is made of peanut husk instead of rice husk, and the proportion is the same as in Example 1. Since the strength of peanut husk is slightly greater than that of rice husk, the mechanical strength of the finished product is slightly higher, and the remaining use effects are basically similar to those of rice husk. The properties of the finished material are as follows:

[0029] Strength: MU5.0~MU7.5

[0030] Water permeability rate: ≥5mm / s

Embodiment 3

[0032] Use walnut shells instead of rice husks as the hard fiber biomass material, and use the same ratio as in Example 1. Because the strength of walnut shell is slightly greater than that of rice husk, the mechanical strength of the finished product is slightly higher, and the rest of the use effect is basically similar to that of rice husk. The properties of the finished material are as follows:

[0033] Strength: MU7.5~MU10.0

[0034] Water permeability rate: ≥6.5mm / s

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PUM

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Abstract

The invention relates to multimedia multiaperture water purifying water permeable material, which is characterized in that the invention contains the raw materials of common concrete, agricultural and forest castoffs and other inorganic materials, wherein, the agricultural and forest castoffs comprise rice hulls, peanut shells, nutshells, etc. The other inorganic materials comprise slag, sintered aggregates, zeolite, granulating slag, steel slag, active carbon, etc. The agricultural and forest castoffs contain rich carbon, therefore, the invention can everlastingly provide high C / N ratio for microbe, and then keep stability and durative for a sewage disposal system in the low C sewage disposal. The water permeable rate of the invention is equal to or larger than 5 mm / s, therefore, the invention has the advantages of high sewage persistent processing rate and long service life.

Description

1. Technical field [0001] The invention belongs to the filter material manufacturing technology in the technical field of waste water and sewage treatment, and in particular relates to a technology for making multi-media porous water purification and permeable materials using agricultural and forestry waste and concrete as base materials. 2. Background technology [0002] With the rapid development of my country's economy, the problems of water environment and water ecology have become increasingly prominent, and the scarcity of water resources has become an increasingly prominent problem. In many cities and suburbs of our country, water quality-based water shortage has become the main reason for water resource scarcity. Therefore, it is imminent to develop practical technologies to improve the water quality of existing water sources. [0003] Ecological concrete sewage treatment technology is a new technology that began to be studied abroad in the 1990s. Tongji University ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C02F1/00C04B18/24C04B18/08C04B14/04C04B18/14
CPCY02W30/91
Inventor 吴永红刘蜀治胡正义杨林章
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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