CN106007096A - Pretreatment technology for textile machine cleaning high-oil-content waste liquor - Google Patents
Pretreatment technology for textile machine cleaning high-oil-content waste liquor Download PDFInfo
- Publication number
- CN106007096A CN106007096A CN201610558277.5A CN201610558277A CN106007096A CN 106007096 A CN106007096 A CN 106007096A CN 201610558277 A CN201610558277 A CN 201610558277A CN 106007096 A CN106007096 A CN 106007096A
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- CN
- China
- Prior art keywords
- waste liquor
- oil
- demulsification
- emulsion
- silicate
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
Abstract
The invention relates to a pretreatment technology for textile machine cleaning high-oil-content waste liquor. The pretreatment technology comprises oxidation demulsification, reversed-phase demulsification and a composite precipitate process, and in the composite precipitate process, high-polymerization-degree inorganic polymer and high molecular weight polyacrylamide are adopted. A demulsifier used in the oxidation demulsification comprises hydrogen peroxide, sodium hypochlorite, potassium permanganate or ferric trichloride; a demulsifier used in the reversed-phase demulsification comprises a cationic polyether type surfactant, a cationic quaternary ammonium salt type surfactant or ethylene oxide propylene oxide cationic polyether. The high-polymerization-degree inorganic polymer is a combination of one or two of polyferric silicate sulfate, poly-aluminum silicate, polyaluminum ferric silicate and polymeric ferric sulfate. By the pretreatment technology for the textile machine cleaning high-oil-content waste liquor, textile machine cleaning waste liquor with COD of 50,000 to 150,000 mg/L and petroleum of 600 to 1,500 mg/L and similar high-oil-content and high-COD waste liquor can be treated until the COD reaches down to 500 mg/L or is lower and the petroleum reaches down to 5 mg/L or is lower.
Description
Technical field
The invention belongs to disposal of three wastes technical field, particularly relate to a kind of textile machinery and clean high oily waste liquor pretreatment
Technique.
Background technology
Oil in alkali-washing waste liquid mainly exists with the state of oil emulsion, and the scattered particle diameter of this oil is the least, is difficult to from waste liquid
Middle removal, generally uses the treating method of breakdown of emulsion oil-water separation purification of water quality.Breakdown of emulsion mainly by add medicament with
Destroy the stability of emulsifying colloid solution in waste liquid and make it condense.Conventional medicament has calcium chloride, sodium chloride, magnesium chloride etc..
In order to make oil droplet and other float separate as soon as possible, and generate small flocks, also need dosing coagulant or flocculation aid.Conventional
Coagulant and flocculation aid have: aluminum sulfate, aluminium polychlorid, ferrous sulfate, ferric chloride, activated silicic acid, polyacrylamide etc..
Oil-water separation then generates flocculation by breakdown of emulsion, agglomeration process, oil droplet and impurity.Then profit is made to be layered by the method for physics,
Greasy filth scrapes, and reaches the effect of oil-water separation.The method of oil-water separation has: on naturally floating upper, Pressurized flotation, floating upper, the cohesion of electrolysis
Precipitation and coarse etc..Purification of water quality: after breakdown of emulsion, oil-water separation, in water, oil content, Organic substance, COD are substantially reduced, but water
In there is also the oil of trace and some water soluble surfactant actives, can by absorption, be filtered to remove.Conventional absorption, filtration
The active charcoal of material, coke, sulfonation matchmaker, sand, polypropylene fibre, acrylonitrile etc..By the above alkali-washing waste liquid processed, meet row
Put standard.Also there is activated carbon adsorption on employing medicament breakdown of emulsion Pressurized flotation, and the cohesion of spent acid breakdown of emulsion is heavy
Shallow lake Calx neutralizes and the processing method of ultrafiltration.Said method cleans waste liquid and the similar tool produced for textile machinery
Have high oil-containing and high COD(chemical oxygen demand) waste liquid of feature, dosing is big, it is also difficult to stably reaches and is decreased below by COD
The treatment effect of 500mg/L；And petroleum hydrocarbons is very harmful to biochemical treatment afterwards, generally need to be reduced to
30ppm is even lower.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, it is proposed that a kind of textile machinery cleans high oily waste liquor pretreatment work
Skill, cleans waste liquid and the similar high oil-containing produced and high COD(chemical oxygen demand for textile machinery) waste liquid, there is well place
Reason effect, its can by COD 50000～150000mg/L, petroleum-type is less than to COD in the liquid waste processing of 600～1500 mg/L
500mg/L and petroleum-type are less than 5mg/L.
The present invention solves technical problem and is adopted the technical scheme that, a kind of textile machinery cleans high oily waste liquor pretreatment
Technique, including breakdown of emulsion and composite precipitation process, described breakdown of emulsion process comprises oxidation to harness emulsion and rp demulsification, described composite precipitation mistake
Cheng Caiyong high polymerization degree inorganic polymer and high molecular weight polyacrylamide.
As preferably, the demulsifier that described oxidation to harness emulsion uses is hydrogen peroxide, sodium hypochlorite, potassium permanganate or tri-chlorination
Ferrum；The demulsifier that described rp demulsification uses is cation polyether type surfactant, cationic quaternary ammonium salt form surfactant
Or ethylene oxide propylene oxide cation polyether.
As preferably, described high polymerization degree inorganic polymer be polyferric silicate sulfate, polymer aluminium silicate, polymeric aluminium ferrum silicate and
One or both combination in bodied ferric sulfate.
As preferably, described high molecular weight polyacrylamide is anionic, and molecular weight is 1500～25,000,000.
The present invention uses breakdown of emulsion and composite precipitation process successively, and breakdown of emulsion process uses oxidation to harness emulsion and anti-phase broken successively
Breast, and composite precipitation process uses high polymerization degree inorganic polymer and high molecular weight polyacrylamide.Make pretreating process
Obtain significant effect.
The selection of demulsifier during breakdown of emulsion, the selection of medicament during composite precipitation, the most all rises highly important
Effect.
The present invention cleans waste liquid and the similar high oil-containing produced and high COD(chemical oxygen demand for textile machinery) waste liquid,
There is good treatment effect, its can by COD 50000～150000mg/L, petroleum-type is at the waste liquid of 600～1500 mg/L
Process and reach 5mg/L or lower to the COD low 500mg/L of reaching or lower and petroleum-type are low.
Accompanying drawing explanation
Fig. 1 is one detailed description of the invention process chart of the present invention.
Detailed description of the invention
Fig. 1 is one detailed description of the invention process chart of the present invention.First carry out oxidation to harness emulsion, then carry out rp demulsification,
Then composite precipitation is carried out.Detailed process is: first in the ratio of 1000～3000 g ton waste liquids, adds dioxygen in waste liquid
Water, sodium hypochlorite, potassium permanganate or ferric chloride, stirring reaction about 10 minutes, regulate pH to 7～8；Again by 100～200 grams/
The ratio of ton waste liquid, adds cation polyether type surfactant, cationic quaternary ammonium salt form surfactant or oxirane ring
Ethylene Oxide cation polyether, stirring reaction about 10 minutes；Then in the ratio of 1000～2000 g ton waste liquids, polymerization silicon is added
One or both combination in acid ferrum, polymer aluminium silicate, polymeric aluminium ferrum silicate and bodied ferric sulfate, stirring reaction about 10 points
Clock；Finally in the ratio of 6～10 liter/ton waste liquids, add mass concentration be 0.02% the moon that molecular weight is 1500～25,000,000 from
Subtype polyacrylamide, carries out precipitate and separate.By COD 50000～150000mg/L, petroleum-type is 600～1500 mg/L's
Textile machinery waste liquid disposal reaches the COD low 500mg/L of reaching or lower and petroleum-type is low reaches 5mg/L or lower.
Owing to liquid waste concentration often rises and falls, the concrete dosage of each medicament can be determined by lab scale.The following is embodiment:
| Oxidation is broken Breast | Rp demulsification | Composite precipitation | Process Before COD | Process After COD | Before process Petroleum-type, mg/L | After process Petroleum-type, mg/L | |
| Real Execute Example 1 | Hydrogen peroxide 1000 grams/ Ton | Cation polyether type surface Activating agent 100 g ton | Polyferric silicate sulfate 1000 g ton；Mass concentration be the molecular weight of 0.02% be 1500～ Anion-polyacrylamide 6 liter/ton of 25000000 | 5000 0 | 350 | 600 | 5 |
| Real Execute Example 2 | Hypochlorous acid Sodium 1200 G ton | Cationic quaternary ammonium salt form table Face activating agent 100 g ton | Polymer aluminium silicate 1200 g ton；Mass concentration be the molecular weight of 0.02% be 1500～ Anion-polyacrylamide 6 liter/ton of 25000000 | 6000 0 | 300 | 730 | 3 |
| Real Execute Example 3 | Permanganic acid Potassium 1500 G ton | Ethylene oxide propylene oxide Cation polyether 120 grams/ Ton | Polymeric aluminium ferrum silicate 1500 g ton；Mass concentration be the molecular weight of 0.02% be 1500 ～anion-polyacrylamide 8 liter/ton of 25,000,000 | 8000 0 | 450 | 850 | 2 |
| Real Execute Example 4 | Tri-chlorination Ferrum 2000 G ton | Cation polyether type surface Activating agent 150 g ton | Bodied ferric sulfate 1800 g ton；Mass concentration be the molecular weight of 0.02% be 1500～ Anion-polyacrylamide 8 liter/ton of 25000000 | 1000 00 | 480 | 960 | 2 |
| Real Execute Example 5 | Permanganic acid Potassium 3000 G ton | Ethylene oxide propylene oxide Cation polyether 200 grams/ Ton | Polymer aluminium silicate 1000 g ton, bodied ferric sulfate 1000 g ton；Mass concentration is The molecular weight of 0.02% is the anion-polyacrylamide 10 of 1500～25,000,000 Liter/ton | 1500 00 | 500 | 1250 | 2 |
Claims (4)
1. textile machinery cleans a high oily waste liquor pretreating process, including breakdown of emulsion and composite precipitation process, it is characterised in that
Described breakdown of emulsion process comprises oxidation to harness emulsion and rp demulsification, and described composite precipitation process uses high polymerization degree inorganic polymer and height
Molecular weight polyacrylamide.
Textile machinery the most according to claim 1 cleans high oily waste liquor pretreating process, it is characterised in that described oxidation
The demulsifier that breakdown of emulsion uses is hydrogen peroxide, sodium hypochlorite, potassium permanganate or ferric chloride；The demulsifier that described rp demulsification uses
Poly-for cation polyether type surfactant, cationic quaternary ammonium salt form surfactant or ethylene oxide propylene oxide cation
Ether.
Textile machinery the most according to claim 1 cleans high oily waste liquor pretreating process, it is characterised in that described height gathers
Right inorganic polymer is one or both in polyferric silicate sulfate, polymer aluminium silicate, polymeric aluminium ferrum silicate and bodied ferric sulfate
Combination.
Textile machinery the most according to claim 1 cleans high oily waste liquor pretreating process, it is characterised in that described high score
Sub-weight polyacrylamide is anionic, and molecular weight is 1500～25,000,000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610558277.5A CN106007096A (en) | 2016-07-15 | 2016-07-15 | Pretreatment technology for textile machine cleaning high-oil-content waste liquor |
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| CN201610558277.5A CN106007096A (en) | 2016-07-15 | 2016-07-15 | Pretreatment technology for textile machine cleaning high-oil-content waste liquor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396171A (en) * | 2016-10-21 | 2017-02-15 | 上海纳米技术及应用国家工程研究中心有限公司 | Treatment method for aluminum casting wastewater |
| CN106746233A (en) * | 2016-12-29 | 2017-05-31 | 湖南金益环保股份有限公司 | A kind of high-enriched organics traditional Chinese medicine wastewater pretreating process |
| CN113577828A (en) * | 2021-08-23 | 2021-11-02 | 天津开放大学 | Preparation method of demulsifying flocculant for treating oily wastewater on metal surface |
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| CN103936185A (en) * | 2013-06-04 | 2014-07-23 | 克拉玛依市三达新技术开发有限责任公司 | Method for treating and reusing super-heavy oil high-temperature sewage in thermal recovery boiler |
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| CN105481225A (en) * | 2014-10-09 | 2016-04-13 | 中国石油化工股份有限公司 | Oil-containing scum dehydration method |
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2016
- 2016-07-15 CN CN201610558277.5A patent/CN106007096A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102826680A (en) * | 2012-08-30 | 2012-12-19 | 中国石油天然气股份有限公司 | High silicon-containing waste water in oil field reuse boiler pretreatment technology and apparatus |
| CN103936185A (en) * | 2013-06-04 | 2014-07-23 | 克拉玛依市三达新技术开发有限责任公司 | Method for treating and reusing super-heavy oil high-temperature sewage in thermal recovery boiler |
| CN103739137A (en) * | 2014-01-06 | 2014-04-23 | 大庆市富杰化工有限公司 | Innocent treating and recovering method and device of sump oil in oil field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396171A (en) * | 2016-10-21 | 2017-02-15 | 上海纳米技术及应用国家工程研究中心有限公司 | Treatment method for aluminum casting wastewater |
| CN106746233A (en) * | 2016-12-29 | 2017-05-31 | 湖南金益环保股份有限公司 | A kind of high-enriched organics traditional Chinese medicine wastewater pretreating process |
| CN113577828A (en) * | 2021-08-23 | 2021-11-02 | 天津开放大学 | Preparation method of demulsifying flocculant for treating oily wastewater on metal surface |
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