Hydrophilic biological carrier for wastewater treatment

A biological carrier and wastewater treatment technology, applied in aerobic process treatment, sustainable biological treatment and other directions, can solve the problems of long time required for film hanging, and the outer surface of the carrier is not easy to hang film, so as to achieve no need for replacement and maintenance, and short time. , the effect of improving efficiency

Inactive Publication Date: 2015-08-26
大连宇都环境技术材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the prepared biological carrier has the advantages of roughness, large specific surface area, and long service life, it also has disadvantages such as long time required for the biological carrier to form a film, and the outer surface of the carrier is not easy to form a film.

Method used

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  • Hydrophilic biological carrier for wastewater treatment
  • Hydrophilic biological carrier for wastewater treatment

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] Implementation example 1

[0027] Take 0.5kg of talc powder with a fineness above 100 mesh, 3.5kg of slag powder, 2kg of ferric oxide, and 2kg of coke and mix them, then add 72kg of high-density polyethylene, mix them evenly, and send them into the extrusion barrel. Heating up, the temperature of the fuselage reaches 135°C, and the temperature of the nose reaches 130°C. The hydrophilic biological carrier for waste water treatment described in the present invention can be produced.

[0028] The hydrophilic biological carrier used for wastewater treatment prepared in this example was compared with the biological carrier directly prepared from pure high-density polyethylene in terms of density, contact angle, impact strength and tensile strength. The comparison results are as follows:

[0029]

[0030] Implementation example 2

[0031] Take 0.5kg of talc powder with a fineness above 100 mesh, 3.5kg of polyvinyl alcohol, 2kg of ferric oxide, and 2kg of coke and mix the...

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Abstract

The invention provides a hydrophilic biological carrier for wastewater treatment. The hydrophilic biological carrier comprises base materials, hydrophilic functional materials and auxiliary materials, the base materials include high-density polyethylene, the hydrophilic functional materials include iron trioxide, coke and slag powder or polyvinyl alcohol, and the auxiliary materials include talcum powder. The density of the hydrophilic biological carrier for wastewater treatment is 0.93-1.05g/cm<3>, the biological carrier is rough in surface, large in specific surface area, short in membrane hanging time and high in impact resistance, can prevent microbial membranes attached to the outer surface of the carrier from falling off due to friction between the carriers in water, contact angles of sewage and the carrier are reduced, the hydrophilicity of the carrier is improved, so that microorganisms are more easily attached to the carrier, the biological carrier is provided with enhanced components of biological enzyme, the catalytic action of the biological enzyme is facilitated, the enhanced components are high in biological activity and fast in metabolism, the decomposition capacity of contamination in the water can be remarkably improved, the biological carrier contains ultraviolet-resistant components, the service life of the biological carrier is longer than 30 years, and replacement and maintenance are omitted.

Description

technical field [0001] The invention relates to a biological carrier for wastewater treatment, in particular to a hydrophilic biological carrier for wastewater treatment. Background technique [0002] The biofilm moving bed method is widely used in the sewage treatment process because of its advantages of stable operation, high load impact resistance, economy and energy saving. The core technology of the biofilm moving bed method is the biofilm carrier, and the characteristics of the biofilm carrier determine the efficiency of the moving bed biofilm treatment process. However, most of the currently produced biofilm carriers are directly made of polymer resin materials such as polyethylene and polypropylene. Therefore, the produced biocarriers have poor biocompatibility, easy to fall off the biofilm on the outer surface of the carrier, and have a low removal rate of ammonia nitrogen. [0003] High-density polyethylene has good heat resistance and cold resistance, good chemic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 权伍哲
Owner 大连宇都环境技术材料有限公司
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