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Composite adsorbent material with embossing and preparation method thereof

A composite adsorption material and embossing technology, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal compounds, etc., can solve problems affecting crop growth, loss of flight function, bird death, etc., to improve surface lock control ability, enhanced adsorption and lock control ability, and the effect of not easy to elute

Inactive Publication Date: 2017-12-15
SUZHOU BD ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The discharge of oily wastewater into the water will cause serious impacts: the dissolved oxygen in the water body will decrease, resulting in stench and deterioration of water quality; aquatic organisms will die due to lack of oxygen, and fish, shellfish, etc. Spilled oil will lose the function of flight and even cause the death of birds
In addition, oily wastewater will also pollute the atmosphere and affect the growth of crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The invention provides a composite adsorption material with embossing, the adsorption material is composed of a matrix layer and a surface layer coated on the surface of the matrix layer, the surface of the adsorption material has embossments evenly distributed, and the embossments are in a three-dimensional structure, The matrix layer is activated carbon fiber, the surface layer is a mixture of hollow fibers and short fibers, and the mixture is distributed on the surface of the activated carbon fibers in an irregular form, and the mixture is closely combined with the surface layer of the activated carbon fibers; the hollow fibers The inner diameter of the short fiber is 300-600 μm, the wall thickness is 50-70 μm, and the fiber length of the short fiber is 1-3 mm.

[0031] The fiber diameter of the activated carbon fiber is 5-10 μm, and the specific surface area is 1000-1500 m 2 / g, the activated carbon fiber is evenly distributed with a number of micropores, and the av...

Embodiment 2

[0034] A method for preparing the above-mentioned composite adsorption material with embossing, comprising:

[0035] S1, prepare the spinning solution;

[0036] S2. Filter the prepared spinning hydraulic pressure, and use spinning equipment to extrude the spinning solution from the spinneret composed of two concentric tubes to obtain unconsolidated hollow filaments, and cool and shape the hollow filaments;

[0037] S3. laying the cooled hollow fibers on the surface of the activated carbon fibers, wherein the transmission speed of the activated carbon fibers is less than twice the extrusion speed of the hollow fibers, thus making the hollow fibers distributed on the surface of the activated carbon fibers in an irregular form;

[0038] S4, pumping the pulpy short fiber slurry to the surface of the hollow fiber and the activated carbon fiber;

[0039] S5. Spunlace intertwining short fibers, hollow filaments, and activated carbon fibers;

[0040] S6, drying the material obtained...

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Abstract

The invention provides a composite adsorption material with embossments. The composite adsorption material is composed of a matrix layer and a surface layer coating the surface of the matrix layer; the embossments are uniform distributed on the surface of the adsorption material and are of a three-dimensional structure; the matrix layer is active carbon fiber; the surface layer is a mixture of hollow filament and short fiber, and the mixture is distributed on the surface of the active carbon fiber in an irregular form; and the mixture and the active carbon fiber surface layer are closely bonded together. Accordingly, the invention provides a preparation method for the composite adsorption material. The preparation method comprises the following steps: preparing a spinning liquid and then extruding the spinning liquid to form the hollow filament; entangling the hollow filament, the short fiber and the active carbon fiber together; and then carrying out drying and embossing so as to obtain the adsorption material. The composite adsorption material retains ultra-strong adsorption capability of the active carbon fiber, has improved surface oil-locking and oil-controlling capability, has the characteristics of small possibility of elution and long service life in the process of usage, and is capable of reducing leakage of adsorption substances and preventing secondary pollution.

Description

technical field [0001] The invention relates to the field of adsorption materials, in particular to a composite adsorption material with embossing and a preparation method thereof. Background technique [0002] Oil enters the water environment through different channels to form oily wastewater. Oily wastewater is a kind of wastewater with large volume, wide range and serious hazards, which mainly comes from petroleum industry, machinery manufacturing industry, transportation industry and catering industry, etc. The discharge of oily wastewater into the water will cause serious impacts: the dissolved oxygen in the water body will decrease, resulting in stench and deterioration of water quality; aquatic organisms will die due to lack of oxygen, and fish, shellfish, etc. Spilled oil will lose the function of flight and even cause the death of birds. In addition, oily wastewater will also pollute the atmosphere and affect the growth of crops. Therefore, the treatment of oily ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28
CPCB01J20/20B01J20/267B01J20/28038C02F1/288
Inventor 王菊华王菊霞
Owner SUZHOU BD ENVIRONMENTAL PROTECTION