CN1064460A - The tensio-active agent foamy is abolished method - Google Patents
The tensio-active agent foamy is abolished method Download PDFInfo
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- CN1064460A CN1064460A CN 92107342 CN92107342A CN1064460A CN 1064460 A CN1064460 A CN 1064460A CN 92107342 CN92107342 CN 92107342 CN 92107342 A CN92107342 A CN 92107342A CN 1064460 A CN1064460 A CN 1064460A
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- foam
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- waste water
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Abstract
A kind ofly be used for the method that the agent in waste water treatment foam is abolished.It is to utilize foam separating tower to carry out foam separation, utilize the moisture carried secretly in the gas-liquid separator scumming, with have negative pressure (300～-500mmH
2The O post) and the broken bubble of brown sheet filtering net bulb-breaking device, by the gas behind the broken bubble of high-pressure suction fan discharging, carry out that the tensio-active agent foam abolishes.This method is that washing composition, printing and dyeing, leather industry carry out wastewater treatment, a kind of novel method of curbing environmental pollution.
Description
The present invention relates to foam separating technology, is to abolish a kind of novel method of tensio-active agent foamy in the waste water.
At present, known foam separation principle is all adopted in the washing composition wastewater treatment, i.e. the application of tensio-active agent foaming absorption property.According to this principle, to contain certain density surface active agent wastewater sends in the foam separating tower, send into pressurized air by the bottom, formed a large amount of tensio-active agent foams that contains higher concentration (more than the 500mg/l) by microporous pipe air-blowing in waste water, waste water is purified, for making water treatment produce operation continuously, need a large amount of foams is abolished.The known method of abolishing has: 1, the broken bubble of heating, utilize the method for heating, destroy the mechanical balance of foam bilayer capsule, abolish the foamy purpose to reach, its specific practice is: adopt the encloses container that steam coils or steam sheet are housed, the high density foam that foam column is separated is sent into this container, make foam fully contact the intensification of being heated with steam coils or steam sheet, gas expansion in the foam, the mechanical balance of foam bilayer capsule destroys, and foam is abolished.Lacking of this method now is: very easily fouling, not easy to clean; Gas behind the broken bubble is difficult for effluxing, and is easy to form secondary and bubbles, owing to use a large amount of steam, it is stronger to form thermal radiation, is unfavorable for operation.2, centrifugal broken bubble (the broken bubble of rotating disk), utilize the garden dish of high speed rotating, under cutting and action of centrifugal force, foam is abolished, lacking of this method now is: because by the pressurized air bubbling, after foam was abolished, the gas in the foam can't efflux, be easy to form secondary and bubble, make brokenly bubble very not thorough.3, utilize the broken bubble of defoamer, when solution surface is sprawled, can take away the solution of near surface layer according to defoamer, make the local attenuation of liquid film, so this feature of liquid-sheet disintegration is sprayed at defoamer on the foam, foam is abolished, and lacking of this method now is: can only abolish a small amount of partial foam.
The purpose of this invention is to provide a kind of tensio-active agent foam and abolish method, and the gas that can will break behind the bubble is got rid of in time.
The object of the present invention is achieved like this: sump pump is sent waste water into foam separating tower with the flow of 15～20t/h, simultaneously pressurized air is sent in the knockout tower by 1: 6～1: 9 vapour-liquid ratio by the microporous pipe of tower bottom, behind 20～30 minutes foam separation, foam is sent into 50% the moisture content of carrying secretly in the scumming in the gas-liquid separator, send into again have negative pressure (300～-500mmH
2The O post) and in the bulb-breaking device of brown sheet filtering net,, makes foam be able to fragmentation, and will break gas behind the bubble by high-pressure suction fan and draw and drain because the normal atmosphere in the bubble is higher than outer normal atmosphere of bubble and the cutting by brown sheet filtering net.
The present invention is further described below in conjunction with drawings and Examples.
Sump pump is sent waste water into foam separating tower with the flow of 16t/h, by the microporous pipe of foam separation tower bottom pressurized air is sent into foam separating tower by 1: 7 vapour-liquid ratio simultaneously, in tower through behind 20 minutes the foam separation, clear liquid is got rid of at the bottom of tower, the high density foam of come-up top of tower is sent into gas-liquid separator again, scumming can be carried secretly in gas-liquid separator 50% moisture content is sent into and is had negative pressure (300mmH
2The O post) and the bulb-breaking device of brown sheet filtering net, because the normal atmosphere in the bubble is higher than outer normal atmosphere of bubble and the cutting by brown sheet filtering net, broken foam, foam solution flows into dosing processing in the flocculation jar that has whipping appts, gas behind the broken simultaneously bubble is drawn discharging by high-pressure suction fan, makes the normal operation continuously of whole set of installation.
Above flow process constitutes a complete tensio-active agent foam and abolishes method.
Claims (3)
1, a kind ofly be used for the method that the agent in waste water treatment foam is removed, it is characterized in that: after waste water enters foam separating tower, the isolating foam of foam separating tower is sent into gas-liquid separator, 50% the moisture content of removing that it carries secretly, sent into-300～-500mmH
2The bulb-breaking device of O post and brown sheet filtering net utilizes the inside and outside draught head of foam and breaks bubble by the cutting of brown sheet filtering net, by the gas behind the broken bubble of high-pressure suction fan discharge.
2, method according to claim 1 is characterized in that: sump pump is sent waste water into foam separating tower with the flow of 15～20t/h, simultaneously the microporous pipe of pressurized air at the bottom of the tower is sent in the knockout tower by 1: 6～1: 9 vapour-liquid ratio.
3, according to claim 1,2 described methods, it is characterized in that: waste water is discharged at the bottom of tower through the foam separation of 20～30 fens clock times, clear liquid in knockout tower, and the high density foam of come-up cat head is sent into gas-liquid separator, 50% the moisture content of removing that it carries secretly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107342 CN1064460A (en) | 1992-03-24 | 1992-03-24 | The tensio-active agent foamy is abolished method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107342 CN1064460A (en) | 1992-03-24 | 1992-03-24 | The tensio-active agent foamy is abolished method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1064460A true CN1064460A (en) | 1992-09-16 |
Family
ID=4942833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92107342 Pending CN1064460A (en) | 1992-03-24 | 1992-03-24 | The tensio-active agent foamy is abolished method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064460A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114360A (en) * | 2010-01-05 | 2011-07-06 | 东京化工机株式会社 | Foam processing apparatus |
| CN103723783A (en) * | 2013-11-28 | 2014-04-16 | 瓮福（集团）有限责任公司 | Method for recovering flotation reagents from phosphorite mineral processing wastewater |
| CN103895251A (en) * | 2014-03-12 | 2014-07-02 | 陕西科技大学 | Vacuum pressing system for wet method tanning |
| CN104203362A (en) * | 2012-01-25 | 2014-12-10 | Acal能源公司 | Separator |
| CN109195921A (en) * | 2016-05-09 | 2019-01-11 | 荷兰联合利华有限公司 | For purifying the device and method of waste water |
| PL422633A1 (en) * | 2017-08-25 | 2019-03-11 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Method for decreasing foaming of wastewater that contains anionic surfactants |
| PL422632A1 (en) * | 2017-08-25 | 2019-03-11 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Method for decreasing foaming of wastewater that contains non-ionic surfactants |
-
1992
- 1992-03-24 CN CN 92107342 patent/CN1064460A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114360A (en) * | 2010-01-05 | 2011-07-06 | 东京化工机株式会社 | Foam processing apparatus |
| CN104203362A (en) * | 2012-01-25 | 2014-12-10 | Acal能源公司 | Separator |
| CN104203362B (en) * | 2012-01-25 | 2017-02-22 | Acal能源公司 | Separator |
| CN103723783A (en) * | 2013-11-28 | 2014-04-16 | 瓮福（集团）有限责任公司 | Method for recovering flotation reagents from phosphorite mineral processing wastewater |
| CN103895251A (en) * | 2014-03-12 | 2014-07-02 | 陕西科技大学 | Vacuum pressing system for wet method tanning |
| CN103895251B (en) * | 2014-03-12 | 2016-01-20 | 陕西科技大学 | A kind of wet method process hides suction press system |
| CN109195921A (en) * | 2016-05-09 | 2019-01-11 | 荷兰联合利华有限公司 | For purifying the device and method of waste water |
| PL422633A1 (en) * | 2017-08-25 | 2019-03-11 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Method for decreasing foaming of wastewater that contains anionic surfactants |
| PL422632A1 (en) * | 2017-08-25 | 2019-03-11 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Method for decreasing foaming of wastewater that contains non-ionic surfactants |
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| SE01 | Entry into force of request for substantive examination | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |