Composite porous adsorption material based on oily sludge and waste plastic PET and preparation method thereof

A technology of porous adsorption materials and waste plastics, which is applied in the field of resource utilization of solid waste, can solve the problems of aggravating the earth's white pollution and threatening the living environment of human beings, and achieve remarkable adsorption performance, reduce environmental pollution problems, and simple preparation process Effect

Inactive Publication Date: 2018-09-21
ZHEJIANG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it is difficult to degrade in nature, if it is not recycled and reused, a large number of PET plastic bottles will increase the "white pollution" of the earth and threaten the living environment of human beings.
However, the recycling rate of PET plastic bottles in 2007 was only about 40%.

Method used

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  • Composite porous adsorption material based on oily sludge and waste plastic PET and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Using oily sludge and waste plastic PET as raw materials, oily sludge is centrifuged and dehydrated and dried to remove most of the water, and then mixed evenly with waste plastic (PET) after washing, drying, and crushing. Waste plastic PET accounts for the two after mixing. The ratio of the total mass is 30%. Put the homogeneous mixture of the two into a quartz boat, and perform pyrolysis treatment in the nitrogen atmosphere of the tube furnace: raise the temperature at a heating rate of 5°C / min, and keep it at 500°C for 4h to obtain the finished composite porous adsorption material.

[0030] Adsorption experiment: The composite porous adsorption material prepared in this example was tested for adsorption performance. Add 500 mg of composite porous material into 50 mL of 1000 mg / L methylene blue solution, shake for 24 hours, and measure the adsorption capacity of the filtrate after filtration to be 20.76 mg / g.

Embodiment 2

[0032] Using oily sludge and waste plastic PET as raw materials, the oily sludge is centrifuged and dehydrated and dried to remove most of the water, and then mixed evenly with waste plastic PET after washing, drying, and crushing. Waste plastic PET accounts for the total mass of the two after mixing The ratio is 50%. Put the homogeneous mixture of the two into a quartz boat, and perform pyrolysis treatment in the nitrogen atmosphere of the tube furnace: raise the temperature at a heating rate of 5°C / min, and keep it at 500°C for 4h to obtain the finished composite porous adsorption material.

[0033] Adsorption experiment: The composite porous adsorption material prepared in this example was tested for adsorption performance. Add 500 mg of composite porous material into 50 ml of 1000 mg / l methylene blue solution, shake for 24 hours, and measure the adsorption capacity of the filtrate after filtration to be 25.21 mg / g.

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Abstract

The invention relates to a composite porous adsorption material based on oily sludge and waste plastic PET and a preparation method thereof. The composite porous adsorption material is prepared by mixing the dewatered and dried oily sludge and the waste plastic PET and performing heat treatment, and the waste plastic PET accounts for 20-80% in terms of the total mass of the two. Through the composite porous adsorption material, resource utilization of the oily sludge and the waste plastic (PET) is achieved and sweage is treated through the waste; in addition, the composite porous adsorption material is simple in preparation technology and low in cost; when applied to the field of sewage treatment, the composite porous adsorption material has a remarkable effect and superior adsorption performance.

Description

technical field [0001] The invention belongs to the field of resource utilization of solid waste, in particular to a composite porous adsorption material based on oily sludge and waste plastic (PET) and a preparation method thereof. Background technique [0002] With the rapid development of the economy and the increase in the scale of oil exploration and refining, the output of oily sludge is increasing. At present, the annual output of oily sludge in my country is as high as 30 million tons. The current treatment methods are mainly simple landfill and simple incineration, which cause serious environmental pollution and waste of resources. Therefore, it is the key to solve the problem to develop efficient and environmentally friendly oily sludge resource utilization technology and effectively improve the recycling rate. [0003] There are many patent reports on the recycling of oil sludge. For example, the Chinese patent document CN102294217A discloses a method for prepari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20C02F1/28B01J20/30C02F101/30
CPCB01J20/02B01J20/20B01J2220/4893C02F1/281C02F1/283C02F2101/308
Inventor 潘响亮郑立稳张庆莹冯裕栋高永超陈贯虹王加宁
Owner ZHEJIANG UNIV OF TECH
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