CN102478507A - Infrared spectroscopic analysis method of hydrophobic polymeric flocculant - Google Patents
Infrared spectroscopic analysis method of hydrophobic polymeric flocculant Download PDFInfo
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- 238000000034 method Methods 0.000 title abstract description 19
- 230000002209 hydrophobic effect Effects 0.000 title abstract 6
- 238000012844 infrared spectroscopy analysis Methods 0.000 title abstract 4
- 238000004458 analytical method Methods 0.000 claims abstract description 22
- 238000002329 infrared spectrum Methods 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 5
- 239000008394 flocculating agent Substances 0.000 claims description 45
- 229920001600 hydrophobic polymer Polymers 0.000 claims description 32
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000004566 IR spectroscopy Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
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- 150000003839 salts Chemical class 0.000 description 2
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- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical compound OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 2
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- 206010003497 Asphyxia Diseases 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
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- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
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- 239000008235 industrial water Substances 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
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- LGRFSURHDFAFJT-UHFFFAOYSA-N phthalic anhydride Chemical compound C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an infrared spectroscopic analysis method of a hydrophobic polymeric flocculant. The infrared spectroscopic analysis method of the hydrophobic polymeric flocculant comprises the following steps: preparing a hydrophobic polymeric flocculant sample for later use; placing the sample in a beaker and washing; standing, aggregating into a dough, and washing the dough into granules; then putting the mixture into an oven for baking; taking out and tabletting; and analyzing the pressed sheet by an infrared spectrum analyzer and the like. The invention can rapidly carry out infrared spectroscopic analysis on the hydrophobic polymeric flocculant, has high analysis precision and simple analysis steps, reduces the analysis cost, and provides qualitative and quantitative analysis information for the chemical property, the three-dimensional structure, the conformation orientation and the like of the hydrophobic polymeric flocculant.
Description
Technical field
The present invention relates to a kind of infrared spectrum analysis of hydrophobic polymer flocculating agent.
Background technology
Along with rapid economy development, energy production is on the rise with the environmental problem that consumption produces, and particularly water pollution problems has become the hot issue of various circles of society's common concern.In many municipal effluents and industrial waste water, the petroleum industry oily waste water is the most representative.Oil-containing wastewater is mainly from land and offshore oil exploitation, processing, transportation (accident and draining), industrial water drainage.Oil pollutant forms oil film on the water surface, the isolated atmosphere and the water surface destroy the excess oxygen of water body, and the minimizing of oxygen in water can cause planktonic organism in the water body because of anoxic death by suffocation; Also can limit the photosynthesis of hydrophyte such as algae, influence the self-cleaning of water body; Oil pollutant is attached to the soil particle surface, in soil, forms oil film, makes air be difficult to penetrate, and destroys soil and the eubolism of microorganism wherein, influences the normal growth of crops; In the biological treatment system, oil content exceeds standard will influence active sludge and biomembranous eubolism, and effluent quality is difficult to guarantee.Therefore, it is extremely necessary handling oily waste water.
Oil content in the oily waste water exists with oil slick, dispersed oil, oil emulsion and four kinds of forms of dissolving wet goods usually.Because the difference of existence form, the method for handling oily waste water is also just different.At present external oil-contaminated water of oil field is handled the facility that adopts and is mainly contained settling pit, oil interceptor, inclined plate grease pond, removes oil tank, coarse jar, pressure slurry tank, flotation cell (post), pressure filter, single valve filter tank, combined type treating apparatus, hydrocyclone and fine filter etc. except that oil tank, coagulation naturally.The affiliated facility that adopts has various buffering system jars (pond), reclaims water pot (pond), backwash tank (pond), slop oil tank, medicament establishing system, various water pump and oil-water metering facility etc.
In recent years, some new equipment have been developed in the processing of oily sewage (mainly being oil extraction-generated waste water) abroad, like novel closed float tank, hydrocyclone, various combined type oil-water separators etc.The successful exploitation of these devices is all of great advantage to integrated and the reduction equipment volume and the construction costs etc. of the treatment effect that improves oily sewage, the treatment efficiency that improves equipment, realization treatment facility function.
Yet be not that single method is handled oily waste water and just can be reached the effluent quality requirement, several kinds of disposal routes of actual waste water treatment project needs are combined into various treatment process system and handle oily waste water.Along with science and technology development, the improvement technology of oil-contaminated water of oil field is strengthened when constantly exploring and is improved both at home and abroad in recent years.According to the data from abroad introduction, the characteristics and the important symbol of new oilfield produced water treatment process are that hydrocyclone is introduced flow process, substitute traditional oil removal and flotation cells.In the U.S. North Sea oil field re-injection oil-containing sewage treatment technique flow process, adopted 3 oil-water separators and 6 hydrocyclone series connection, the water quality after the processing can reach the requirement of re-injection water.Wherein oil content is reduced to below 20～30mg/L by 200～500mg/L (mainly existing with O/W type form of emulsion).In addition, the many oil removal by air bubbling technology that adopted of the U.S.'s its treatment process in newly-built oily water treatment station.U.S.'s Gulf oilfield produced water processing technological flow is made up of unit such as oil-water separator, flocculation, air supporting, GAC-FBR (activated charcoal biological fluidized-bed reactor), electrodialysis; Handle back day maximum oil content and be no more than 10mg/L, reached very strict emission control standards.Many scholars' research shows, handles the condensed oil sewage that contains some hardly degraded organic substances and generally adopts the biochemical oxidation method, and its technological process mainly comprises unit operationss such as oil-water separator, air supporting, chemical oxidation, biological membrane hydrolysis acidification, filtration.
Developed and produced multiple sewage-treating agent in order to improve the oily waste water treatment effeciency, comprised coagulant, flocculating agent, flotation agent etc.Wherein the hydrophobic polymer flocculating agent can be accelerated water purification speed as efficient water treatment agent, removes suspension and noxious material in the water.The disposal route of oily waste water is also a lot, and particularly handle oily waste water and have the treatment effeciency height, the residence time is short, energy consumption is low, occupation of land is little by the turbine air flotation method for wherein air supporting method, control and characteristics easy to maintenance.Add flotation agent during air supporting and can not only obtain better air flotation effect, and can shorten the flocculation reaction time, this is to reducing capital expenditure, cutting down the consumption of energy and operating cost has great importance in the actual engineering.
Can roughly the flocculating agent of studying at present and using be divided into inorganic flocculating agent, organic flocculant, composite flocculation agent and microbial flocculant four big classes according to the composition of flocculating agent and preparation method's difference.
(1) inorganic flocculating agent
The applicating history of inorganic flocculating agent is long, and traditional inorganic flocculating agent has low molecular inorganic salts such as aluminium sulphate, aluminum chloride, ferrous sulphate, ferric trichloride, and its advantage is a less expensive, but there is bigger problem in they in water treatment procedure.Its consumption is big, and aggregation velocity is slow, and the floccus of formation is little, and corrosivity is strong, and in wastewater treatment, usually causes the sludge dewatering difficulty, and sludge quantity is big, and is undesirable at some occasion purifying water effect, and replaced by inorganic polymer flocculant gradually.Inorganic polymer flocculant is after the sixties in 20th century, just to grow up in the world.In recent years, development and application polymeric aluminum, iron, silicon and various composite flocculant became focus.The kind of inorganic polymer flocculant is cationic in the series that China progressively forms to have aluminium polychloride (PAC), polyaluminium sulfate (PAS), polymer phosphate aluminium (PAP), bodied ferric sulfate (PFC), a polymer phosphate iron (PFP) etc.; Anionic activated silicic acid (AS), polymeric silicicacid (PS) arranged; Inorganic composite type PAFC (PAFC), poly-silicic acid iron sulfate (PFSS), polysilicate sulfuric acid aluminium (PASS), polymeric silicicacid iron chloride (PFSC), polymerization sulfuric chlorohydrin iron (PFCS), polymer aluminium silicate (PASI), polymeric silicicacid iron (PFSI), polymer phosphate ferro-aluminum (PSFP), silico-calcium composite polymeric iron chloride (SCPAFC) etc. are arranged.They and traditional flocculating agent relatively usefulness are more excellent, and more cheap than organic polymer coargulator, and be widely used in feeding water, the various flow processs of industrial waste water and municipal effluent.
(2) organic polymer coargulator
The organic polymer coargulator molecular weight is big, of a great variety, have very strong adsorption bridging ability; Compare with inorganic polymer flocculant; Have that consumption is few, the flocculation dewatering ability is strong, settling velocity is fast, it is few to generate sludge quantity; And advantages such as the salt that coexisted, pH value and temperature effect are little received extensive attention in recent years, and it has a extensive future.Used at present and mainly contained organic polymer coargulator two major types synthetic and modification.
(3) composite flocculation agent
For the complicated water body of composition, single flocculating agent can not satisfy the requirement of water treatment usually.The development of composite flocculation agent is just arisen at the historic moment.Composite flocculation agent roughly is divided into inorganic composite flocculant, organic composite coagulator and inorganic organic composite coagulator three major types.Domestic and international research is primarily aimed at inorganic organic composite coagulator at present.The mechanism of action of such flocculating agent is: behind the sewage impurity absorption inorganic flocculating agent, the adsorption bridging effect through organic polymer coargulator precipitates.Because cooperative effect, composite flocculation agent has not only comprised the advantage of original single flocculating agent, has also remedied deficiency separately.Many reports are arranged recently both at home and abroad, as: usefulness PAC-PAM composite flocculation agents such as Chen Lifeng, Li Mingjun are respectively applied for ferrous salt, PAM composite flocculation agent and handle different turbidity sewages and contain the electroplating wastewater that C produces.Flocculating property, mechanism and optimal coagulant dose etc. to them have been done a series of deep researchs; It is main being illustrated in soon the stage of stirring and being with compression double electric layer, absorption charge neutrality; Slowly the stage of stirring is to be adsorbed as the master with bridging; Incorgruous flocculation and difference fleece hocket with fixed attention in the quiet heavy stage, reach the purpose of rapid sedimentation.Usefulness PAMC and the composite efficient flocculatings of having realized the living rhzomorph fermentation liquor of centering of zeyssatite such as Li Shaojie have improved its liquid-solid separating property greatly.
(4) microbial flocculant
Microbial flocculant is meant and utilizes microbial technique, through the fermentation of microorganism, and extracting, refining and one type of flocculating agent obtaining has efficient, nontoxic, advantages such as the flocculation object is extensive, decolorizing effect uniqueness.In 70 generations of 20th century, Japanese scholar has found to have the microbial culture medium of flocculation in research phthalandione vinegar biodegradation process.In the later stage eighties, processed first kind of biological flocculant of called after NOC-1 and drop into suitability for industrialized production and be used for wastewater treatment.
The quantum energy that infrared ray had can excited molecule vibration and rotational energy level; The vibration of molecule and rotational energy level are quantized; Therefore the energy that under ultrared electromagnetic wave effect, is absorbed is discontinuous; Have only when the infrared ray energy equals to excite certain vibrational energy level energy needed from the ground state transition to excited state of a certain chemical bond just, such infrared ray could be by absorption of sample.When continuously changing the ultrared frequency that shines on the sample, the light ray energy of some frequency can be consumed by the vibration of corresponding chemical bond, thereby has weakened the energy of projection light.As when the frequency of infrared ray and molecular vibrational frequency are inconsistent, infrared ray is to not influence and passing through fully of material molecule; When infrared ray frequency and molecular vibrational frequency were in full accord, molecule just absorbed this part infrared ray, and vibrations become excited state from ground state, so the infra-red intensity of this frequency weakens, show the infrared absorption phenomenon.The factors such as geometry of the quality of this absorption and atomic group, relative position, the chemical bond bond energy size that mutually combines, whole molecule are relevant.Each group, chemical bond all have special group of frequencies, no matter they occur in what compound, the absorption frequency of its infrared region all occurs within the specific limits, and the power of absorption is relevant with the quantity of this group.
Infrared spectrum occupies crucial status in polymkeric substance research; The chemical property, spatial structure, conformation orientation etc. that can be polymkeric substance provide qualitative and quantitative analysis information, arrive application widely at aspects such as the backbone structure of identifying polymkeric substance, substituting group position, position of double bond, side-chain structures.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art; A kind of infrared spectrum analysis of hydrophobic polymer flocculating agent is provided; The infrared spectrum analysis of this hydrophobic polymer flocculating agent can carry out IR spectroscopy to the hydrophobic polymer flocculating agent fast, and analysis precision is high, and analytical procedure is simple; Reduced analysis cost, for the chemical property of hydrophobic polymer flocculating agent, spatial structure, conformation orientation etc. provide qualitative and quantitative analysis information.
The object of the invention is realized through following technical proposals: a kind of infrared spectrum analysis of hydrophobic polymer flocculating agent may further comprise the steps:
(a) preparation hydrophobic polymer flocculating agent sample is subsequent use;
(b) getting a certain amount of hydrophobic polymer flocculating agent sample places beaker and washs;
(c) leave standstill a period of time, hydrophobic polymer flocculating agent sample slowly is agglomerated into dough, and this dough is washed into graininess once more;
(d) put it in the baking oven again and toast;
(e) after the taking-up it is carried out compressing tablet;
(f) through infrared spectrometric analyzer to compressing tablet after the hydrophobic polymer flocculating agent carry out IR spectroscopy.
In the said step (b), hydrophobic polymer flocculating agent sample washs through absolute ethyl alcohol.
In the said step (c), dough becomes graininess through washing with acetone.
In the said step (d), stoving time is 10 hours.
In sum; The invention has the beneficial effects as follows: can carry out IR spectroscopy to the hydrophobic polymer flocculating agent fast; And analysis precision is high; Analytical procedure is simple, has reduced analysis cost, for the chemical property of hydrophobic polymer flocculating agent, spatial structure, conformation orientation etc. provide qualitative and quantitative analysis information.
Embodiment
Below in conjunction with embodiment, the present invention is done further detailed description, but embodiment of the present invention is not limited only to this.
Embodiment:
The infrared spectrum analysis of a kind of hydrophobic polymer flocculating agent that the present invention relates to, its concrete steps are following:
(a) preparation hydrophobic polymer flocculating agent sample is subsequent use;
(b) getting a certain amount of hydrophobic polymer flocculating agent sample places beaker and washs;
(c) leave standstill a period of time, hydrophobic polymer flocculating agent sample slowly is agglomerated into dough, and this dough is washed into graininess once more;
(d) put it in the baking oven again and toast;
(e) after the taking-up it is carried out compressing tablet;
(f) through infrared spectrometric analyzer to compressing tablet after the hydrophobic polymer flocculating agent carry out IR spectroscopy.
In the said step (b), hydrophobic polymer flocculating agent sample washs through absolute ethyl alcohol.
In the said step (c), dough becomes graininess through washing with acetone.
In the said step (d), stoving time is 10 hours.
Above-mentioned analytical approach can be carried out IR spectroscopy to the hydrophobic polymer flocculating agent fast; And analysis precision is high; Analytical procedure is simple, has reduced analysis cost, for the chemical property of hydrophobic polymer flocculating agent, spatial structure, conformation orientation etc. provide qualitative and quantitative analysis information.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and every foundation technical spirit of the present invention, any simple modification, equivalent variations to above embodiment did all fall within protection scope of the present invention.
Claims (4)
1. the infrared spectrum analysis of a hydrophobic polymer flocculating agent is characterized in that, may further comprise the steps:
(a) preparation hydrophobic polymer flocculating agent sample is subsequent use;
(b) getting a certain amount of hydrophobic polymer flocculating agent sample places beaker and washs;
(c) leave standstill a period of time, hydrophobic polymer flocculating agent sample slowly is agglomerated into dough, and this dough is washed into graininess once more;
(d) put it in the baking oven again and toast;
(e) after the taking-up it is carried out compressing tablet;
(f) through infrared spectrometric analyzer to compressing tablet after the hydrophobic polymer flocculating agent carry out IR spectroscopy.
2. the infrared spectrum analysis of a kind of hydrophobic polymer flocculating agent according to claim 1 is characterized in that, in the said step (b), hydrophobic polymer flocculating agent sample washs through absolute ethyl alcohol.
3. the infrared spectrum analysis of a kind of hydrophobic polymer flocculating agent according to claim 1 is characterized in that, in the said step (c), dough becomes graininess through washing with acetone.
4. the infrared spectrum analysis of a kind of hydrophobic polymer flocculating agent according to claim 1 is characterized in that, in the said step (d), stoving time is 10 hours.
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| CN 201010567598 CN102478507A (en) | 2010-11-22 | 2010-11-22 | Infrared spectroscopic analysis method of hydrophobic polymeric flocculant |
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| CN 201010567598 CN102478507A (en) | 2010-11-22 | 2010-11-22 | Infrared spectroscopic analysis method of hydrophobic polymeric flocculant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245623A (en) * | 2013-05-11 | 2013-08-14 | 北京工业大学 | Method for measuring relative hydrophobicity of granule sludge cells |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245623A (en) * | 2013-05-11 | 2013-08-14 | 北京工业大学 | Method for measuring relative hydrophobicity of granule sludge cells |
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Application publication date: 20120530 |