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Modified microbial membrane carrier

A microbial film and carrier technology, applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as low ammonia nitrogen removal rate, poor surface hydrophilicity, and easy shedding of biofilms , to achieve the effect of large specific surface area, strong hydrophilicity and easy film formation

Active Publication Date: 2009-01-28
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

Its disadvantages are that the surface is poorly hydrophilic, the biofilm is easy to fall off, and the removal rate of ammonia nitrogen is low, which makes water treatment often fail and the water quality after treatment is unstable.

Method used

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  • Modified microbial membrane carrier
  • Modified microbial membrane carrier
  • Modified microbial membrane carrier

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0030] Take 18 kg of waste rock powder with a fineness above 200 mesh, 1.5 kg of coke powder, 1.14 kg of slag powder, and 0.36 kg of iron powder and mix them in a mixer, then add 54 kg of high-density polyethylene for mixing, and send them to the granulator At 240°C, it is processed into granules, that is, No. 1 material. Take 11.35 kg of slag powder with a fineness above 200 mesh, 14 kg of talc powder, and 2.15 kg of iron powder, put them in a mixer and mix them evenly, then add 47.5 kg of high-density polyethylene to mix, and send them to a granulator for processing at 240 °C Particles are No. 2 material. Take 25 kg of high-density polyethylene, 3 kg of No. 1 material, and 3.5 kg of No. 2 material and mix them into the extruder barrel. The preheated extruder body (feeding section, compression section, homogenization section) The temperature reaches 135°C, and the temperature of the machine head (at the filter plate, machine head 1, machine head 2, and die) reaches 130°C. W...

example 2

[0032] Take 19.6 kg of waste rock powder with a fineness above 200 mesh, 1.8 kg of coke powder, 2 kg of slag powder, and 0.6 kg of iron powder and mix them in a mixer, then add 51 kg of high-density polyethylene to mix, and send them to the granulator At 240°C, it is processed into granules, that is, No. 1 material. Take 12.75 kg of slag powder with a fineness above 200 mesh, 15 kg of talc powder, and 2.25 kg of iron powder, put them in a mixer and mix them evenly, then add 45 kg of high-density polyethylene to mix, and send them to a granulator for processing at 240 °C Particles are No. 2 material. Take 25 kg of high-density polyethylene, 3.5 kg of No. 1 material, and 4.0 kg of No. 2 material and mix them into the extruder barrel. The preheated extruder body (feeding section, compression section, homogenization section) The temperature reaches 135°C, and the temperature of the machine head (at the filter plate, machine head 1, machine head 2, and die) reaches 130°C. With th...

example 3

[0034] Take 19.6 kg of waste rock powder with a fineness above 200 mesh, 1.5 kg of coke powder, 1.14 kg of slag powder, and 0.56 kg of iron powder and mix them in a mixer, then add 52.2 kg of high-density polyethylene to mix, and send them to the granulator At 240°C, it is processed into granules, that is, No. 1 material. Take 12.75 kg of slag powder with a fineness above 200 mesh, 14 kg of talc powder, and 2.15 kg of iron powder, put them in a mixer and mix them evenly, then add 46.1 kg of high-density polyethylene for mixing, and send them to a granulator for processing at 240 °C Particles are No. 2 material. Take 25 kg of high-density polyethylene, 4 kg of No. 1 material, and 4.5 kg of No. 2 material and mix them into the extruder barrel. The preheated extruder body (feeding section, compression section, homogenization section) The temperature reaches 135°C, and the temperature of the machine head (at the filter plate, machine head 1, machine head 2, and die) reaches 130°C...

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Abstract

The modified microbial membrane carrier is made with high density polyethylene; the first granular mixture of waste stone powder, slag powder, iron powder and high density polyethylene; and the second granular mixture of slag powder, talcum powder, iron powder and high density polyethylene. The modified microbial membrane carrier has wet density near that of water, high surface hydrophilicity, good microbe attaching performance, high biological membrane activity, thickness of 10-200 micron, high nitrogen and phosphate eliminating rate and other advantages.

Description

technical field [0001] The invention relates to a microbial film carrier. Background technique [0002] At present, biological treatment methods are generally used for domestic sewage and industrial wastewater, and the widely used biological moving bed technology is to add a biological carrier close to the specific gravity of water in the biochemical pool as a carrier for microbial attachment and growth. However, the unmodified biological carriers produced in China are mainly made by direct molding of polymer materials. Its disadvantages are that the surface has poor hydrophilicity, the biofilm is easy to fall off, and the removal rate of ammonia nitrogen is low, which makes the water treatment often fail and the water quality after treatment is unstable. Contents of the invention [0003] The purpose of the present invention is to provide a modified microbial membrane carrier that can enhance the hydrophilicity of the surface of the carrier and the adsorption of organic ...

Claims

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Application Information

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IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 权伍哲
Owner 大连宇都环境技术材料有限公司