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Defoaming agent for printing and dyeing wastewater

A technology for printing and dyeing wastewater and defoaming agent, which is applied in the direction of degassed water/sewage treatment, etc., can solve the problems of increasing the amount of auxiliaries and resources, the production cannot be carried out normally, and occupying processing space, etc., and achieves strong defoaming power and defoaming. The effect of fast speed and long anti-foaming time

Inactive Publication Date: 2014-05-28
季爱英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The generation of a large amount of foam will occupy the processing space, reduce the processing efficiency, increase the amount of additives and resources, lead to the generation of waste and defective products, and even make the production impossible. Therefore, defoamers must be used to eliminate foam and ensure normal production.

Method used

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  • Defoaming agent for printing and dyeing wastewater
  • Defoaming agent for printing and dyeing wastewater
  • Defoaming agent for printing and dyeing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A defoamer for printing and dyeing wastewater, consisting of the following components by mass:

[0024]

[0025] In this embodiment, the active component is a mixture of simethicone, monoglyceride stearate and sodium carboxymethyl cellulose in a mass ratio of 1:1:1;

[0026] In this example, the emulsifier is Span-60.

Embodiment 2

[0028] A defoamer for printing and dyeing wastewater, consisting of the following components by mass:

[0029]

[0030] In this example, the active component is a mixture of simethicone, monoglyceride stearate and sodium carboxymethylcellulose in a mass ratio of 5:3:3;

[0031] In this embodiment, the emulsifier is Tween-80.

Embodiment 3

[0033] A defoamer for printing and dyeing wastewater, consisting of the following components by mass:

[0034]

[0035]

[0036] In this example, the active component is a mixture of simethicone, monoglyceride stearate and sodium carboxymethylcellulose in a mass ratio of 2:3:1;

[0037] In this embodiment, the emulsifier is Tween-20.

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Abstract

The invention provides a defoaming agent for printing and dyeing wastewater. The defoaming agent is obtained by stirring and emulsifying a mixture which consists of simethicone, monoglyceric stearate and sodium carboxymethylcellulose and serves as an active substance and a non-ionized surfactant, a dispersing agent and a solvent carrier which serve as auxiliary materials. The mass ratio of the simethicone, the monoglyceric stearate to the sodium carboxymethylcellulose is (1-5): (1-3): (1-3); the non-ionized surfactant is a span type surfactant or a tween type surfactant; the dispersing agent is hydrophobic silica; the solvent carrier is water.

Description

technical field [0001] The invention belongs to the field of water treatment agents, in particular to a defoamer, in particular to a defoamer for printing and dyeing wastewater. Background technique [0002] Printing and dyeing wastewater is the mixed wastewater of dyeing residue, rinsing water, pre-treatment (such as wool scouring, degumming, desizing, etc.) and post-finishing produced during the dyeing or printing process of fabrics. Due to the different dyes and auxiliaries used, the nature and quantity of pollutants in the production wastewater discharged by each factory are also different. Textile printing and dyeing wastewater can be divided into the following categories: wool spinning industrial wastewater, cotton spinning industrial wastewater, silk industrial wastewater and hemp spinning industrial wastewater. The requirements for cotton textile printing and dyeing defoamers are very high, and cotton textile printing and dyeing wastewater is difficult to treat. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/20
Inventor 季爱英
Owner 季爱英
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