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Energy-saving treatment process for textile printing and dyeing wastewater

A technology of textile printing and dyeing and treatment process, which is applied in the field of energy-saving treatment process of textile printing and dyeing wastewater, which can solve the problems of low treatment efficiency of the treatment method, and achieve the effect of good wastewater treatment, obvious effect and good effect

Active Publication Date: 2020-02-07
福建省新宏港纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the processing method in this invention patent has the problem of low processing efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An energy-saving treatment process for textile printing and dyeing wastewater, which sequentially includes six steps of primary sedimentation, wastewater conditioning, second sedimentation, aeration, third sedimentation, and overflow discharge. To the chemical flocculant, the biological sedimentation agent is used in the third precipitation step, and the biological sedimentation agent includes the mycelia Geotrichum candida and the mycelium Streptomyces fissures that need the aeration step to introduce oxygen, and the chemical flocculation The agent provides the biosedimentation agent with the metal cation environment required for the balance of the internal and external pressure of the aerobic bacteria.

[0030] The chemical flocculant includes the following components by weight: 25 parts of polyaluminum ferric sulfate, 5 parts of ferrous sulfate, 1 part of polyethylenediamine, 15 parts of montmorillonite and 2 parts of calcium aluminate, the total metal The cation con...

Embodiment 2

[0044] An energy-saving treatment process for textile printing and dyeing wastewater, which sequentially includes six steps of primary sedimentation, wastewater conditioning, second sedimentation, aeration, third sedimentation, and overflow discharge. To the chemical flocculant, the biological sedimentation agent is used in the third precipitation step, and the biological sedimentation agent includes the mycelia Geotrichum candida and the mycelium Streptomyces fissures that need the aeration step to introduce oxygen, and the chemical flocculation The agent provides the biosedimentation agent with the metal cation environment required for the balance of the internal and external pressure of the aerobic bacteria.

[0045] The chemical flocculant includes the following components by weight: 26 parts of polyaluminum ferric sulfate, 6 parts of ferrous sulfate, 5 parts of polyethylenediamine, 16 parts of montmorillonite and 8 parts of calcium aluminate, the total metal The cation co...

Embodiment 3

[0059] An energy-saving treatment process for textile printing and dyeing wastewater, which sequentially includes six steps of primary sedimentation, wastewater conditioning, second sedimentation, aeration, third sedimentation, and overflow discharge. To the chemical flocculant, the biological sedimentation agent is used in the third precipitation step, and the biological sedimentation agent includes the mycelia Geotrichum candida and the mycelium Streptomyces fissures that need the aeration step to introduce oxygen, and the chemical flocculation The agent provides the biosedimentation agent with the metal cation environment required for the balance of the internal and external pressure of the aerobic bacteria.

[0060] The chemical flocculant includes the following components by weight: 32 parts of polyaluminum ferric sulfate, 7 parts of ferrous sulfate, 8 parts of polyethylenediamine, 18 parts of montmorillonite and 9 parts of calcium aluminate, the total metal The cation co...

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Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to an energy-saving treatment process for textile printing and dyeing wastewater. The method achieves theeffect of high-efficiency treatment of printing and dyeing wastewater through coordinated use of a chemical flocculating agent and a biological settling agent. The energy-saving treatment process hasthe advantages that the wastewater treatment effect of a mode that the chemical flocculating agent and the biological settling agent are sequentially combined and used is good; the decomposition andsettling effect of pollutants in the wastewater is obvious after matched use of the chemical flocculating agent and the biological settling agent; organic matter decomposition efficiency of a fungal agent in the biological settling agent is high; the preparation method of the biological settling agent is reasonable and effective; the whole wastewater treatment effect is good; and the process is suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an energy-saving treatment process for textile printing and dyeing wastewater. Background technique [0002] Printing and dyeing wastewater refers to the wastewater discharged from the pretreatment, dyeing, printing and finishing of cotton, wool, hemp, silk chemical fiber or blended products. It has high concentration of organic pollutants, poor biodegradability, high chroma, and Toxic and harmful components, large changes in water quality, complex components, etc. In the existing printing and dyeing wastewater treatment methods, sewage treatment agents are generally used. The existing sewage treatment agents mainly include chemical and biological. However, when dealing with printing and dyeing wastewater, there are two existing processes The problem of unreasonable selection, matching and addition methods of various sewage treatment agents will eventual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30
CPCC02F9/00C02F3/348C02F1/5236C02F1/70C02F2001/007C02F2101/30C02F1/56C02F7/00
Inventor 张奇芳郑章平汪培
Owner 福建省新宏港纺织科技有限公司
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