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Sewage processing high-efficiency antifoaming agent

A technology for sewage treatment and defoaming agent, applied in the field of defoaming agent production and high-efficiency defoaming agent for sewage treatment, can solve the influence of the increase of COD value of system wastewater, unsatisfactory defoaming effect and foam suppression time, defoaming and foam suppression Problems such as poor effect, to achieve the effect of high cost performance, no adverse side effects, good anti-foaming effect

Inactive Publication Date: 2015-06-10
QINGDAO HAOTAI WATER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, silicone and polyether defoamers have good defoaming and antifoaming effects, but they are expensive, and fats are cheap, but they are used in large quantities and have poor defoaming and antifoaming effects.
[0005] At present, imported defoamers are mainly used for defoaming, which is expensive (up to 15,300 yuan / ton), and with the rise of international crude oil prices, the unit price of defoamers is still on the rise, and the operating costs are high. 100,000 yuan, the defoaming effect and antifoaming time are not ideal
On the other hand, when the equipment replaces machine parts and other equipment, a large amount of waste engine oil is produced, which mainly enters the waste water at present, which also has a certain impact on the increase of the COD value of the waste water in the system

Method used

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  • Sewage processing high-efficiency antifoaming agent
  • Sewage processing high-efficiency antifoaming agent
  • Sewage processing high-efficiency antifoaming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019]

[0020] The preparation method is as follows: add polysiloxane, silicone resin and hydrophobic white carbon black into the reaction kettle according to the metering, keep it at 200°C for 8 hours, and grind the obtained product through a colloid mill; mix the product obtained in the previous step with ethylene bis stearamide , dispersant and stabilizer are mixed thoroughly according to the measurement, and at 60-90°C, slowly add water to cause phase inversion, and the obtained milky white product is ground by a colloid mill to obtain a defoamer.

[0021] The performance of the provided defoamer is equivalent to that of the existing defoamers, or even better than the existing defoamers. It can improve its defoaming effect, defoaming speed and foam suppression time. Processing costs. Good water solubility, easy to disperse in water, and can be well compatible with liquid products.

Embodiment 2

[0023]

[0024] The preparation method is the same as above.

[0025] High efficiency at very low concentration, stable and effective under extreme pH conditions, good stability, not easy to break emulsion, good dispersibility, excellent water solubility, prevent microbial growth, non-toxic, non-flammable.

Embodiment 3

[0027]

[0028] The preparation method is the same as above.

[0029] Alkali and acid resistance, fast defoaming speed, long foam suppression time, high efficiency, non-toxic, non-corrosive, and no adverse side effects. Low COD, low consumption, is a kind of environmental protection.

[0030] This product is a high-efficiency defoamer in water phase system, easy to disperse in water and easy to use. It has rapid defoaming effect and anti-foaming function in a wide range of pH and temperature. It is well compatible with various additives, can quickly eliminate foam, and has the effect of preventing foam regeneration. It is widely used in various sewage treatment, various circulating water, printing pulping, bleaching and dyeing, biotin fermentation, water-based additives processing, oil field industry, paper making, pesticides, washing, adhesives, ink coatings, sewage treatment and other fields.

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PUM

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Abstract

The invention provides a sewage processing high-efficiency antifoaming agent, which is composed of polysiloxanes, silicone resin, hydrophobic white carbon black, ethylene bis stearamide, a dispersant and a stabilizing agent. A preparation method comprises the following steps: adding polysiloxanes, silicone resin and hydrophobic white carbon black in a reaction vessel according to metering, insulating for 8 hours under 200 DEG C, grinding the products through a colloid grinder; fully mixing the products and ethylene bis stearamide, the dispersant and the stabilizing agent according to metering, under 60-90 DEG C, slowly adding water for phase inversion, and grinding the milk white products by the colloid grinder to prepare the antifoaming agent.

Description

technical field [0001] The invention relates to a defoamer, more specifically, the invention relates to a high-efficiency defoamer for sewage treatment, which belongs to the technical field of defoamer production. Background technique [0002] In many industrial productions, a large number of foams will be produced. These foams seriously affect the industrial production process, reduce production efficiency, affect product quality, and even cause production to fail. To overcome the adverse effects of these foams on industrial production, it is necessary to try to eliminate foam and suppress For the generation of foam, adding defoamer is a simple and economical defoaming method. [0003] Domestic sewage, industrial sewage treatment process and water purification process require a large amount of defoamers, especially viscose fibers use a large amount of additives and surfactants in the production process, which increases the surface tension of wastewater and makes it The eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/20
CPCY02W10/37
Inventor 朱洪学张欣
Owner QINGDAO HAOTAI WATER
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