Composite biocarrier for wastewater treatment

A biological carrier and wastewater treatment technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve the problems of long time required for film formation and difficult film formation on the outer surface of the carrier , to achieve the effect of improving wastewater treatment efficiency, no need for replacement and maintenance, and fast metabolism

Inactive Publication Date: 2015-09-09
大连宇都环境技术材料有限公司 +1
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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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  • Composite biocarrier for wastewater treatment
  • Composite biocarrier for wastewater treatment

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] Implementation Example 1

[0027] Take 0.2kg of talc powder with a fineness above 100 mesh, 2kg of slag powder, 0.8kg of ferric oxide, 2kg of coke, 1kg of starch, and 2kg of cationic polyacrylamide, and then add 72kg of high-density polyethylene. Extrude into the barrel, heat up the extruder, the temperature of the body reaches 135°C, and the temperature of the head reaches 130°C. The composite biological carrier for waste water treatment described in the present invention can be made.

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

[0029]

[0030] Implementation Example 2

[0031] Take 0.2kg of talc powder with a fineness of 100 mesh or more, 2kg of slag powder, 0.8kg of ferric oxide, 2kg of coke, 1kg of starch, and...

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Abstract

The invention provides a composite biocarrier for wastewater treatment. The base material is high density polyethylene, the composite functional material is slag powder, ferric oxide, coke, starch, cationic polyacrylamide or polyquaternium-10, and the auxiliary material is talcum powder. The composite biocarrier for wastewater treatment provided by the invention has density of 0.93-1.05g / cm<3>. The composite biocarrier has rough surface, short film formation time, strong impact resistance, and can prevent the drop of a microbial film attached to the biocarrier outer surface in water due to friction between carriers. The biocarrier has small contact angle with sewage, the hydrophilcity of the carrier is enhanced, and microorganisms can be attached to the carrier more easily. The biocarrier contains enhancement components of bio-enzyme, can promote the catalytic effect of bio-enzyme, has high bioactivity and fast metabolism, and can significantly enhance the decomposition ability of pollutants in water. The biocarrier contains antiultraviolet components, has a service life of over 30 years, and has no need for replacement and maintenance.

Description

technical field [0001] The invention relates to a biological carrier for wastewater treatment, in particular to a composite 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 chemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/34
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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