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Method for surface modification of basalt fibre carrier for purifying water quality

A basalt fiber and carrier surface technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low cost performance and high price, and achieve increased wettability and increased adhesion probability, the effect of improving surface roughness

Active Publication Date: 2013-01-23
江苏艾特克环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although carbon fiber has good performance, it is expensive and cost-effective, and cannot be widely accepted by the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) The carrier used in the water treatment test is a basalt fiber bundle with a diameter of 7 μm and a specification of 1K and a length of 30 cm. It is placed in a 500 mL beaker and treated for 1.5 hours. The concentration of acetic acid is 2 mol / L and the volume is 300 mL.

[0023] Then take out the basalt fiber bundle with tweezers, place it straight on the plate, rinse it several times with deionized water along the direction of the fiber bundle, and test the pH value of the rinse water at the same time. When the pH value of the rinse water is 7.0, stop the rinse and wait for use.

[0024] (2) Prepare to 3 / H 2 o 2 For the advanced oxidation device, the reactor is a 500mL beaker, and 300mL of deionized water is placed. O from the ozone generator 3 The concentration is about 15mg / L, O 3 The gas is exposed into the beaker through the aeration head of the sand core, and begins to be exposed to O 3 , after 5 minutes of stabilization; use tweezers to put the basalt ...

Embodiment 2

[0029] (1) The carrier used in the water treatment test is a basalt fiber bundle with a diameter of 7 μm and a specification of 1K and a length of 30 cm. It is placed in a 500 mL beaker for 2.0 h, and the concentration of acetic acid is 1 mol / L, and the volume is 300 mL; Take out the bundle, place it straight on the flat plate, rinse it with deionized water several times along the direction of the fiber bundle, and test the pH value of the rinse water at the same time. When the pH value of the rinse water is 7.5, stop the rinse and wait for use.

[0030] (2) Prepare to 3 / H 2 o 2 Advanced oxidation device, the reactor is a 500mL beaker, place 300mL deionized water, the O produced by the ozone generator 3 The gas concentration is about 8mg / L, O 3 The gas is exposed into the beaker through the aeration head of the sand core, and begins to be exposed to O 3 After stabilizing for 4 minutes, put the basalt fiber bundles etched in step (1) into the beaker with tweezers, and then...

Embodiment 3

[0035] (1) The carrier used in the water treatment test is a basalt fiber bundle with a diameter of 7 μm and a specification of 1K and a length of 30 cm. It is placed in a 500 mL beaker for 1 hour, and the concentration of acetic acid is 1.5 mol / L, and the volume is 300 mL.

[0036] Then take out the basalt fiber bundle with tweezers, place it straight on the plate, rinse it with deionized water several times along the direction of the fiber bundle, and test the pH value of the rinse water at the same time. When the pH of the rinse water is 6.5, stop the rinse and wait for use.

[0037] (2) Prepare to 3 / H 2 o 2 Advanced oxidation device, the reactor is a 500mL beaker, place 300mL deionized water, the O produced by the ozone generator 3 The gas concentration is about 12mg / L, O 3 The gas is exposed into the beaker through the aeration head of the sand core, and begins to be exposed to O 3 , after stabilizing for 8 minutes; put the basalt fiber bundles etched in step (1) int...

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PUM

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Abstract

The invention discloses a method for surface modification of a basalt fibre carrier for purifying water quality. The method comprises the following steps of: firstly roughening the surface of originally smoother basalt fibre by acid etching, wherein the rough surface is beneficial to attaching and fixing the microbes on the surface; and then forming an Si-OH group on the surface of basalt fibre through an advanced oxidation reaction to evidently increase oxygen-containing groups on the surface of basalt fibre, thereby enhancing the wetting property of the surface of basalt fibre; and then depositing Fe<3+> ions on the surface of basalt fibre carrier by using a cation deposition method, wherein the potential on the surface of carrier is boosted; the surface of carrier has positive change to accelerate the fixation of the microbes on the surface of fibre by utilizing electrostatic attraction; and modifying the surface of basalt fibre carrier to enable the surface to have excellent hydrophilic property and microbe loading property and to load more biomass weights, as well as to maintain higher microbial activity for a long time, thereby more efficiently removing the pollutants in the water body through a biological membrane method.

Description

technical field [0001] The invention relates to a method for surface modification of a basalt fiber carrier for water purification. Background technique [0002] At present, carbon fiber materials are relatively mature in the application of fiber materials to water treatment carriers. Through the high bio-affinity of carbon fiber, an active biofilm is formed, and the function of microorganisms is used to decompose pollutants. Carbon fiber is an ideal biological carrier with good application effect. It has been widely concerned at home and abroad, and there are many successful engineering application cases. However, although carbon fiber has good performance, its price is high and its cost performance is low, so it cannot be widely accepted by the market. [0003] The basalt fiber (BFs) used in the present invention is a green and high-performance inorganic silicate fiber, which is composed of basalt rock materials composed of oxides such as silicon dioxide, aluminum oxide,...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F3/10
CPCY02W10/10
Inventor 吴智仁张波蒋素英徐岗徐畅
Owner 江苏艾特克环境工程有限公司
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