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A microwave photocatalytic integrated treatment method for printing and dyeing sludge

A technology for printing and dyeing sludge and its treatment method, which is applied in the fields of sludge treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as poor microwave oven equipment, and achieve large sludge volume reduction and low cost. Effect

Inactive Publication Date: 2019-04-12
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of sludge used in these testing experiments is generally about 30ml. The microwave ovens used are simple and simple, and some even use household microwave ovens. Industrial sludge microwave extraction has not been reported yet.

Method used

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Effect test

Embodiment Construction

[0032] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0033] Microwave energy is a new type of green energy. Under the action of the alternating microwave electric field, the polar material molecules change with the change of the electromagnetic field. Microwave radiation and high-frequency electromagnetic waves penetrate the extraction medium and reach the internal vascular bundles and glandular system. The characteristics of microwave heating are as follows:

[0034] a. Penetrating heating, fast heating speed. The distance it penetrates is theoretically on the same order of magnitude as the wavelength of electromagnetic waves. Microwave heating is to make the heated object itself a heating object, which is called the overall heating method, and does not require the process of heat conduction, so it can be heat...

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Abstract

The invention relates to a microwave photocatalysis integrated treatment method for a printing and dyeing sludge. The method comprises the steps of S1, adding 0.01-2parts by weight of photocatalyst, 1-5 parts of extracting agent, 1-10 parts by weight of electromagnetic wave absorber, 2-30 parts of alkaline curing agent and 0.1-5 parts of heavy metal curing agent into 100 parts by weight of the printing and dyeing sludge; S2, evenly mixing the printing and dyeing sludge with the added photocatalyst, an extracting agent, the electromagnetic wave absorber, a binder and the heavy metal curing agent; S3, treating the mixed printing and dyeing sludge in the step 2 into particles; S4, putting the sludge particles into a microwave oven for integrated treatment, and recycling exhaust generated in the treatment process. The microwave photocatalysis integrated treatment method for the printing and dyeing sludge has the advantages of energy conservation and high efficiency, even heating, degradation of organics, curing of heavy metal, low temperature sterilization and large decrements of sludge size.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a microwave photocatalytic integrated treatment method for printing and dyeing sludge. Background technique [0002] Printing and dyeing sludge is a by-product of printing and dyeing sewage treatment. Printing and dyeing sewage contains chemical reagents such as dyes, pastes, and additives. As a result, printing and dyeing sludge has great biological toxicity and serious environmental pollution, which has become a hot and focused issue in today's ecological environment. According to the country's strategic needs for sludge stabilization, harmlessness, reduction, and resource development, make full use of the useful components in sludge, turn waste into treasure, and treat waste with waste. Sludge ecological safety disposal technology is an important prerequisite for promoting sludge disposal and resource utilization. Therefore, through the implementation of key technologies for m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F103/30
CPCC02F11/00C02F2103/30C02F2303/06
Inventor 汪华方龚小龙王杰冯浩文尹先雄蔡凯陈卓杨黎业
Owner WUHAN TEXTILE UNIV
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