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Treatment method of waste textile garments (WTG)

A treatment method and clothing technology, which are applied in fiber treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as environmental pollution and waste of used clothes, and achieve simple and easy process flow, low investment and operation cost, and good quality. The effect of the adsorption function

Inactive Publication Date: 2016-09-28
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country has not yet established a classification system for used clothes. Old clothes have to be landfilled or incinerated together with common garbage to generate electricity. certain pollution
There is no report on the graft copolymerization of waste clothes into biomass adsorbents, and then applied to the treatment of heavy metals in wastewater

Method used

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  • Treatment method of waste textile garments (WTG)
  • Treatment method of waste textile garments (WTG)
  • Treatment method of waste textile garments (WTG)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Pretreatment of waste clothes

[0038] (1-1) Take discarded cotton fabrics from a university dormitory in Shanghai, and manually cut them into 1cm×1cm pieces;

[0039] (1-2) Place the trimmed pieces in a YB2000-A shearing mill and grind for about 1 hour to obtain flocs;

[0040] (1-3) Put the floc into a QM-1SP04 planetary ball mill for ball milling, the ball milling speed is 400r / min, and the running time is 6h, to obtain a powder with a particle size ranging from about 1 to 400 μm;

[0041] (2) Powder activation

[0042] (2-1). Use an analytical electronic balance to weigh 5 g of waste clothes that are ball-milled into powder in a three-necked flask;

[0043] (2-2). Add 100mL of 64% sulfuric acid into a three-necked flask, and soak the powder for 30min at room temperature;

[0044] (2-3). Place the three-neck flask in a constant temperature water bath, heat it to 55°C, and stir it for 120 minutes under constant temperature conditions, then take it out and cool ...

Embodiment 2

[0055] The adsorbent of the graft copolymerization product is applied to the heavy metal removal experiment, specifically according to the following steps:

[0056] (1) The experimental simulation of heavy metal wastewater is composed of CdCl 2 12H 2 O, Cu(SO 4 ) 2 ·5H 2 O, Pb(NO 3 ) 2 and Zn(NO 3 ) 2 ·6H 2 O, the concentration of the four metal ions in the wastewater is 20mg / L;

[0057] (2) Take the synthesized adsorbent to carry out the heavy metal adsorption experiment, the adsorbent concentration in the wastewater is 2g / L, the adsorption time is 0-24h, and the pH is adjusted to 2-8. The adsorption experiment was carried out in a constant temperature shaker at a rate of 150r / min and a temperature of 25°C;

[0058] (3) Sampling at regular intervals, using an inductively coupled plasma optical emission spectrometer (ICP-OES) to detect the heavy metal content in the sample, and calculating the removal rate of each metal ion.

[0059] In this embodiment, the graft co...

Embodiment 3

[0062] A method for processing waste clothing, specifically comprising the following steps:

[0063] (1) Pretreatment of waste clothes

[0064] (1-1) Take discarded cotton fabrics from a university dormitory in Shanghai, and manually cut them into 1cm×1cm pieces;

[0065] (1-2) Place the trimmed pieces in a YB2000-A shearing mill and grind for about 1 hour to obtain flocs;

[0066] (1-3) Put the floc into a QM-1SP04 planetary ball mill for ball milling, the ball milling speed is 400r / min, and the running time is 6h, to obtain a powder with a particle size ranging from about 1 to 400 μm;

[0067] (2) Powder activation

[0068] (2-1). Use an analytical electronic balance to weigh 5 g of waste clothes that are ball-milled into powder in a three-necked flask;

[0069] (2-2). Add 100mL of 70% sulfuric acid into a three-necked flask, and soak the powder for 20min at room temperature;

[0070] (2-3). Place the three-neck flask in a constant temperature water bath, heat to 40°C, a...

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Abstract

The invention relates to a treatment method of waste textile garments (WTG). The treatment method comprises the following steps: (1) pretreatment: selecting wastes and cutting out, grinding and ball-milling the wastes, thus obtaining powder; (2) activating treatment of the powder: weighing the powder prepared in the step (1), adding sulfuric acid to carry out soaking treatment, then heating and stirring to react, separating out water-insoluble creaming at the lower layer after reaction is completed and dispersing the creaming in water, thus obtaining suspension; (3) acrylamide grafting: (3-1) pumping an inert gas to the suspension prepared in the step (2) for shielding, adding persulfate and stirring to react; (3-2) further adding acrylamide, stirring to react and carrying out separation, washing and drying after reaction is completed, thus obtaining an adsorbent. Compared with the prior art, the treatment method can achieve the effects of synthesizing the bio-adsorbent with the WTG through graft copolymerization, providing a new resource utilization way for the WTG and reducing environmental pollution, and the like caused by unreasonable treatment and disposal of the WTG.

Description

technical field [0001] The invention relates to a treatment method for waste clothes, in particular to a method for grafting and synthesizing an adsorbent on waste clothes. Background technique [0002] With the acceleration of urbanization and the development of modern industrialization, industrial wastewater discharged from factories contains a large amount of heavy metals and organic pollutants, which has become one of the major environmental problems that threaten human development. At present, the commonly used methods for removing heavy metals in wastewater include adsorption, chemical precipitation, membrane filtration, and ion exchange. Adsorption technology has the irreplaceable role of other technologies in the field of water purification because of its advantages such as simple process, convenient operation, good adsorption selectivity and easy regeneration of adsorbent. The synthesis of traditional adsorption materials is difficult to biodegrade after being disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M14/04D06M14/08B01J20/24B01J20/26B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J20/265B01J2220/4875C02F1/285C02F2101/20D06M14/04D06M14/08
Inventor 赵由才周涛邓悦夏发发戴世金李杭芬
Owner TONGJI UNIV
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