CN104310559B - A kind of method of utilizing modified straw dye wastewater treatment using - Google Patents

A kind of method of utilizing modified straw dye wastewater treatment using Download PDF

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CN104310559B
CN104310559B CN201410631192.6A CN201410631192A CN104310559B CN 104310559 B CN104310559 B CN 104310559B CN 201410631192 A CN201410631192 A CN 201410631192A CN 104310559 B CN104310559 B CN 104310559B
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modified straw
waste water
dyestuff
straw
modified
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CN104310559A (en
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伍钧
杨刚
赵旭
赵丹
黄常红
张小洪
李黎
彭宏
蔺丽丽
肖鸿
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Sichuan Agricultural University
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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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

The invention belongs to the water-treatment technology field in water prevention and cure of pollution, the particularly processing of waste water from dyestuff, is specially a kind of method of utilizing modified straw dye wastewater treatment using. The method adopts two-step method to carry out stalk modification, first with NaOH, rice straw is carried out to pretreatment, then rice straw after treatment and tetradecyl trimethyl ammonium chloride are carried out to modified-reaction, the removal of recycling modified water rice straw to orange beta-naphthol, methylene blue, eriochrome black T dyestuff in water body, finally realizes dye wastewater treatment. Modified water rice straw and tetradecyl trimethyl ammonium chloride carry out hybrid reaction taking mass ratio as 1:1～1:1.5. The quality percentage composition of described NaOH is 10%-30%. The technical program has good flocculating result, decoloring ability is strong, easy to use, cost-saving; Not only solve the recycling of agricultural stalk, also can realize the decolouring processing to waste water from dyestuff simultaneously.

Description

A kind of method of utilizing modified straw dye wastewater treatment using
Technical field
The invention belongs to the water-treatment technology field in water prevention and cure of pollution, particularly the processing of waste water from dyestuff, is speciallyA kind of method of utilizing modified straw dye wastewater treatment using.
Background technology
China is agricultural production big country, all can produce a large amount of agricultural stalks every year, the annual agriculture producing of China according to statisticsNearly more than 600,000,000 tons of crop material. Agricultural crop straw not only contains the required various nutritional labelings of plant growth, contains rich simultaneouslyRich organic matter. Both can be used as feed resource, can be used as again the source of the soil organism. The utilization rate of China's stalk only at presentBe 33%, wherein through technical finesse only account for 2.6% left and right, the main approach that utilizes is: straw-returning, using energy source, raiseMaterial utilization, industrial utilization etc.
Along with improving constantly of life in the countryside level, coal, natural gas equal energy source have substituted stalk gradually becomes the master in rural areaThe energy of producing of living, the simultaneously fast development of intensive culture and feed industry also makes the ratio of agricultural crop straw in feedHeavy more and more less, a large amount of agricultural crop straws are thrown aside in field, and the harmful substance producing in its stack retting process very easily impurelyTable water body and phreatic water; The large area of harvest season stalk is burned contaminated air, causes the deterioration of rural environment, gives publicRoad, AIRLINE & AIRPORT bring great potential safety hazard, and the recycling of stalk not only can reduce so that eliminate agricultural wastesHarm, also drops into for agricultural production provides the abundant energy and material, thereby reduces the outside input of agricultural production process, savesResource, reduces production costs, and increases agricultural incomes. Therefore and the country of agricultural resource relative shortage populous for,Do the comprehensive utilization of agricultural stalk well, turn waste into wealth, turn harm into good, in improving resource utilization energetically, protection is ecologicalEnvironment, is a Strategic Measure of whole agricultural sustainable development, is of great immediate significance and strategic importance.
Textile industry is the traditional pillar industry of China, and along with the fast development of national economy, the dyeing industry of China also entersEntered high-speed development period, according to incompletely statistics, China's dyeing waste water discharge capacity every day is 300～4,000,000 m3, in textile industryIn, dyeing is the important step of textile product process, its process is to make various with different dyestuffs, auxiliary agent and colouring methodDifferent fibers obtains the color that we want. Therefore dyestuff has requisite effect, but owing to dying in dyeing processThe use of toner makes the feature that dyeing waste water has complicated component, colourity is large, concentration is high and bio-refractory material is many, specialBe in recent years, the kind of synthetic fibers and the increase of quantity and chemical sizwe (PVA) replace starch answering in printing and dyeing industryWith, make dyeing waste water more difficult.
In recent years, along with development and application efficient, novel high polymer flocculant, with its good flocculating result, decolouringThe advantages such as ability and simple to operate, reduced investment, high polymer coagulant is just being widely used in treatment process of dyeing and printing. UtilizeAgricultural stalk discarded object synthesizing new high polymer coagulant, can not only realize agricultural wastes recycling, also can separate simultaneouslyCertainly the decolouring problem of coloring agent in dyeing waste water, has important researching value.
Summary of the invention
The object of the invention is to discard stalk and carry out chemical modification, by the decolouring processing to different dyes waste water, reachTo resource reutilization. The advantages such as it is extensive that the present invention has raw material sources, and technique is simple and easy to control, product good decolorizing effect.
Rice straw is to be mainly made up of cellulose, hemicellulose, lignin, by pretreatment such as pulverizing, alkali profit rise, noOnly can dissolve hemicellulose, lignin, impurity etc., also can make the form of stalk cellulose and fine structure change,Thereby improve cellulosic reactivity worth, and on the each basic ring of stalk cellulose, all have three alcoholic extract hydroxyl groups, these hydroxyls make fibreThe chemical reactions such as dimension element can be oxidized, etherificate esterification, react pretreated stalk with etherifying agent, the product obtaining canFor decoloring dye waste water processing.
To achieve these goals, the technical scheme of employing is as follows:
Utilize a method for modified straw dye wastewater treatment using, the method adopts two-step method to carry out stalk modification, described inStalk be rice straw. First with NaOH, rice straw is carried out to pretreatment, then by rice straw after treatment withTetradecyl trimethyl ammonium chloride carries out modified-reaction, and recycling modified water rice straw is to orange II, methylene blue, chromium in water bodyThe removal of black T dyestuff, finally realizes dye wastewater treatment. Described modified water rice straw and tetradecyl trimethyl ammonium chloride withMass ratio is within 1: 1～1: 1.5, to carry out hybrid reaction. The quality percentage composition of described NaOH is 10%-30%.
Described modified water rice straw and tetradecyl trimethyl ammonium chloride are that 3-11, reaction time are 15-in pH value25min, temperature are to react under 40～50 DEG C and the stir speed (S.S.) condition that is 400～500r/min.
Be that 20 DEG C, stir speed (S.S.) are 300r/min, to add dosage be 0.6g, pH=5, reaction time to be in reaction temperatureWhen 20min, the percent of decolourization of the orange II waste water from dyestuff that modified straw is 0.03g/L to concentration is 95.71%.
Be that 20 DEG C, stir speed (S.S.) are 300r/min, to add dosage be 0.8g, pH=7, reaction time to be in reaction temperatureWhen 25min, the methylene blue dye decolorization rate of wastewater that modified straw is 0.03g/L to concentration is 76.35%.
Be that 20 DEG C, stir speed (S.S.) are 300r/min, to add dosage be 0.6g, pH=7, reaction time to be in reaction temperatureWhen 15min, the eriochrome black T decoloring dye waste water rate that modified straw is 0.03g/L to concentration is 97.47%.
The pretreated concrete steps of stalk are: the rice straw and the NaOH that take a certain amount of mistake 20 mesh sieves add reactionIn device, rice straw and NaOH mass ratio are controlled at 1: 1～between 1: 1.5, add a certain amount of distilled water and dense simultaneouslyDegree is 3% hydrogen peroxide, and the volume ratio of distilled water and hydrogen peroxide is controlled at 2: 1～between 1.5: 1, utilizes magnetic stirring apparatus to insteadAnswer thing to stir, control stir speed (S.S.) at 250～350r/min, filter after at room temperature stirring 5～6h, simultaneously to producingThe continuous rinse of thing until approach neutrality, is dried under 50～60 DEG C of conditions.
The concrete steps of stalk modification are: take a certain amount of tetradecyl trimethyl ammonium chloride and straw after pretreatmentStalk adds in reactor, and the two mass ratio is controlled at 0.3: 1～between 3: 1, adds distilled water and the concentration of quantitative volume simultaneouslyBe 3% hydrogen peroxide, the two volume ratio is between 2: 1～1.5: 1, utilizes NaOH and hydrochloric acid to regulate pH value of solution in reactorValue, between 3～11, utilizes magnetic stirring apparatus to stir reactant, controls stir speed (S.S.) at 200～600r/min, regulatesTemperature, at 20～60 DEG C, is filtered after stirring 2～6h, to the continuous rinse of product, until approach neutrality, 50～60 DEG C of conditionsLower oven dry, obtains modified straw.
Modified straw practical application: the modified straw of producing is joined respectively to three kinds of orange II, methylene blue, eriochrome black TIn waste water from dyestuff, regulate pH 3～11, the reaction time is at 15～25min simultaneously, modified straw add quality 0.8g/L～Between 1.6g/L, can realize orange II, eriochrome black T decoloring dye waste water rate are reached more than 95%, useless to methylene blue dyeWater decolorization rate reaches more than 75%.
Good effect of the present invention is:
(1) the technical program has good flocculating result, decoloring ability is strong, easy to use, cost-saving;
(2) not only solve the recycling of agricultural stalk, also can realize decolouring place to waste water from dyestuff simultaneouslyReason.
Brief description of the drawings
Fig. 1 is the infrared spectrogram of stalk and modified straw.
Fig. 2 is stalk scanning electron microscope (SEM) photograph.
Fig. 3 is modified straw scanning electron microscope (SEM) photograph.
Detailed description of the invention
Below in conjunction with instantiation, the present invention is explained in detail to explanation.
Embodiment 1:
1, the preparation of modified straw
(1) rice straw pretreatment
Take that 10g crosses 20 mesh sieve rice straws, 20g NaOH adds 1000ml beaker, add 200ml distilled water simultaneouslyAnd the 100ml concentration hydrogen peroxide that is 3%, beaker is placed on magnetic stirring apparatus, control stir speed (S.S.) is 300r/min, temperatureStir 5-6h at 5-10 DEG C after, filter, product is used to the continuous rinse of distilled water, until approach neutrality, 60 DEG C of oven dryTo constant weight.
(2) rice straw modification
1. take through (1) stalk 2g after treatment, take respectively modifier tetradecyl trimethyl ammonium chloride 0.6g, 1g,2g, 4g, 6g are placed in 1000ml beaker, add the hydrogen peroxide that 200ml distilled water and 100ml concentration are 3%, and beaker is placed inOn magnetic stirring apparatus, after pH=7, temperature=60 DEG C, stir speed (S.S.)=500r/min, mixing time 4h, filter, to producingThing, is dried to constant weight at 60 DEG C to neutral with distilled water rinse.
2. take through (1) stalk 2g after treatment and tetradecyl trimethyl ammonium chloride 2g, be placed in 1000ml beaker, addEnter the hydrogen peroxide that 200ml distilled water and 100ml concentration are 3%, beaker be placed on magnetic stirring apparatus, control pH 3-11,After temperature=60 DEG C, stir speed (S.S.)=500r/min, mixing time 4h, filter, to product with distilled water rinse to neutral,Dry to constant weight at 60 DEG C.
3. take through (1) stalk 2g after treatment and tetradecyl trimethyl ammonium chloride 2g, be placed in 1000ml beaker, addEnter the hydrogen peroxide that 200ml distilled water and 100ml concentration are 3%, beaker is placed on magnetic stirring apparatus, control pH=7, temperatureAfter 20-60 DEG C, stir speed (S.S.)=500r/min, mixing time 4h, filter, to product with distilled water rinse to neutral,Dry to constant weight for 60 DEG C.
4. take through (1) stalk 2g after treatment and tetradecyl trimethyl ammonium chloride 2g, be placed in 1000ml beaker, addEnter the hydrogen peroxide that 200ml distilled water and 100ml concentration are 3%, beaker is placed on magnetic stirring apparatus, control pH=7, temperature=60 DEG C, stir speed (S.S.) filter after 200-600r/min, mixing time 4h, to product with distilled water rinse to neutral,Dry to constant weight at 60 DEG C.
5. take through (1) stalk 2g after treatment and tetradecyl trimethyl ammonium chloride 2g, be placed in 1000ml beaker, addEnter the hydrogen peroxide that 200ml distilled water and 100ml concentration are 3%, beaker is placed on magnetic stirring apparatus, control pH=7, temperature=60 DEG C, stir speed (S.S.)=500r/min, mixing time filter after 2-6h, to product with distilled water rinse to neutral,Dry to constant weight at 60 DEG C.
6. orange II, eriochrome black T, methylene blue dye that the modified straw of using 1.～5. producing is 0.01g/L to concentration are uselessWater carries out respectively Decolorant Test, explores each single factor optimum process condition, and concrete result of the test is in shown in Table 1-table 5.
Table 1 modifier adds the decolouring of quality list factor and analyzes
The mono-factor decolouring of table 2pH is analyzed
The decolouring of table 3 temperature list factor is analyzed
The decolouring of table 4 stir speed (S.S.) list factor is analyzed
Table 5 reaction time, single factor decolouring was analyzed
By modifier tetradecyl trimethyl ammonium chloride is added to quality, pH, temperature, stir speed (S.S.), reaction time etc.The interpretation of result of single factor Decolorant Test, in conjunction with practical operation, the best modified technique condition of acquisition rice straw is: stalk and 14Alkyl trimethyl ammonium chloride mass ratio is that 1: 2, pH=7, reaction time are that 3h, temperature are that 50 DEG C, stir speed (S.S.) are 500r/min.Adopt tetradecyl trimethyl ammonium chloride and fibrin reaction to produce modified straw, this is because tetradecyl trimethyl ammonium chlorideAs a kind of surfactant, it is water-soluble large, has good surface-active action, is conducive to carry out chemistry instead in solutionShould, in tetradecyl trimethyl ammonium chloride molecular structure, contain a quinquevalent nitrogen atom simultaneously, belong to cationic surfactant,Therefore, react with it by cellulose, can introduce cation group, realize the cation-modified of stalk fibre. In additionIn order to improve stalk delignification ability, fortifying fibre element activity, in reaction system, add certain density hydrogen peroxide. DioxygenWater (H2O2) as initator, its course of reaction is:
Modified-reaction
2, modified straw is to dye wastewater treatment example
(1) orange II dye wastewater treatment
Orange II waste water from dyestuff is the dye wastewater of laboratory preparation, and concentration is 0.03g/L. Modified straw isUnder good modified technique condition, prepare.
1. in 100ml beaker, adding 50ml concentration is the orange II waste water from dyestuff (marking No. 1 beaker) of 0.03g/L, addsEnter 0.04g modified straw, regulate waste water from dyestuff pH=3, on magnetic stirring apparatus, controlling the reaction time is 10min, after processingThe centrifugation of orange II waste water from dyestuff, supernatant spectrophotometric determination absorbance, and then calculate waste water dyestuff clearance(in table 6).
2. in 100ml beaker, adding 50ml concentration is the orange II waste water from dyestuff (marking No. 2 beaker) of 0.03g/L, addsEnter 0.06g modified straw, regulate waste water from dyestuff pH=5, on magnetic stirring apparatus, controlling the reaction time is 20min, after processingThe centrifugation of orange II waste water from dyestuff, supernatant spectrophotometric determination absorbance, and then calculate waste water dyestuff clearance(in table 6).
3. in 100ml beaker, adding 50ml concentration is the orange II waste water from dyestuff (marking No. 3 beaker) of 0.03g/L, addsEnter 0.08g modified straw, regulate waste water from dyestuff pH=11, on magnetic stirring apparatus, controlling the reaction time is 15min, after processingThe centrifugation of orange II waste water from dyestuff, supernatant spectrophotometric determination absorbance, and then calculate waste water dyestuff clearance(in table 6).
Orange II dye wastewater treatment effect under table 6 different condition
Sequence number Dosage (g) pH Time (min) Percent of decolourization (%)
1 0.04 3 10 88.11
2 0.06 5 20 95.87
3 0.08 11 15 89.02
(2) methylene blue dye wastewater treatment
Methylene blue dye waste water is the dye wastewater of laboratory preparation, and concentration is 0.03g/L. Modified straw beUnder best modified technique condition, prepare.
1. in 100ml beaker, adding 50ml concentration is the methylene blue dye waste water (marking No. 1 beaker) of 0.03g/L,Add 0.04g modified straw, regulate waste water from dyestuff pH=9, on magnetic stirring apparatus, controlling the reaction time is 20min, will processAfter methylene blue dye waste water centrifugal separate, supernatant spectrophotometric determination absorbance, and then calculating waste water dyestuff goesExcept rate (in table 7).
2. in 100ml beaker, adding 50ml concentration is the methylene blue dye waste water (marking No. 2 beaker) of 0.03g/L,Add 0.06g modified straw, regulate waste water from dyestuff pH=11, on magnetic stirring apparatus, controlling the reaction time is 15min, will processAfter methylene blue dye waste water centrifugal separate, supernatant spectrophotometric determination absorbance, and then calculating waste water dyestuff goesExcept rate (in table 7).
3. in 100ml beaker, adding 50ml concentration is the methylene blue dye waste water (marking No. 3 beaker) of 0.03g/L,Add 0.08g modified straw, regulate waste water from dyestuff pH=7, on magnetic stirring apparatus, controlling the reaction time is 25min, will processAfter methylene blue dye waste water centrifugal separate, supernatant spectrophotometric determination absorbance, and then calculating waste water dyestuff goesExcept rate (in table 7).
Methylene blue dye water treatment effect under table 7 different condition
Sequence number Dosage (g) pH Time (min) Percent of decolourization (%)
1 0.04 9 20 56.47
2 0.06 11 15 39.82
3 0.08 7 25 65.82
(3) eriochrome black T dye wastewater treatment
Eriochrome black T waste water from dyestuff is the dye wastewater of laboratory preparation, and concentration is 0.03g/L. Modified straw isUnder good modified technique condition, prepare.
1. in 100ml beaker, adding 50ml concentration is the eriochrome black T waste water from dyestuff (marking No. 1 beaker) of 0.03g/L, adds0.04g modified straw, regulates waste water from dyestuff pH=5, and on magnetic stirring apparatus, controlling the reaction time is 20min, by after treatmentThe centrifugation of eriochrome black T waste water from dyestuff, supernatant spectrophotometric determination absorbance, and then calculate waste water dyestuff clearance and (seeTable 8).
2. in 100ml beaker, adding 50ml concentration is the eriochrome black T waste water from dyestuff (marking No. 2 beaker) of 0.03g/L, adds0.06g modified straw, regulates waste water from dyestuff pH=7, and on magnetic stirring apparatus, controlling the reaction time is 15min, by after treatmentThe centrifugation of eriochrome black T waste water from dyestuff, supernatant spectrophotometric determination absorbance, and then calculate waste water dyestuff clearance and (seeTable 8).
3. in 100ml beaker, adding 50ml concentration is the eriochrome black T waste water from dyestuff (marking No. 3 beaker) of 0.03g/L, adds0.08g modified straw, regulates waste water from dyestuff pH=3, and on magnetic stirring apparatus, controlling the reaction time is 25min, by after treatmentThe centrifugation of eriochrome black T waste water from dyestuff, supernatant spectrophotometric determination absorbance, and then calculate waste water dyestuff clearance and (seeTable 8).
Eriochrome black T dye wastewater treatment effect under table 8 different condition
Sequence number Dosage (g) pH Time (min) Percent of decolourization (%)
1 0.04 5 20 97.88
2 0.06 7 15 99.53
3 0.08 3 25 72.23
(4) different disposal agent is to dye wastewater treatment Contrast on effect
1. in three 100ml beakers, respectively adding 50ml concentration is the orange II waste water from dyestuff of 0.03g/L, in beaker, dividesDo not add 0.06g modified straw, aluminum sulfate, polyacrylamide (being labeled as respectively beaker 1,2, No. 3), regulate waste water from dyestuff pH=5, on magnetic stirring apparatus, controlling the reaction time is 20min, and by orange II waste water from dyestuff after treatment centrifugation, supernatant is usedSpectrophotometric determination absorbance, and then calculate the clearance (in table 9) of each inorganic agent to waste water dyestuff.
2. in three 100ml beakers, respectively adding 50ml concentration is the methylene blue dye waste water of 0.03g/L, in beakerAdd respectively 0.08g modified straw, aluminum sulfate, polyacrylamide (being labeled as respectively beaker 1,2, No. 3), regulate waste water from dyestuff pH=7, on magnetic stirring apparatus, controlling the reaction time is 25min, methylene blue dye waste water centrifugal after treatment is separated to supernatantLiquid spectrophotometric determination absorbance, and then calculate the clearance (in table 9) of each inorganic agent to waste water dyestuff.
3. in three 100ml beakers, respectively adding 50ml concentration is the eriochrome black T waste water from dyestuff of 0.03g/L, in beaker, dividesDo not add 0.06g modified straw, aluminum sulfate, polyacrylamide (being labeled as respectively beaker 1,2, No. 3), regulate waste water from dyestuff pH=7, on magnetic stirring apparatus, controlling the reaction time is 15min, and by eriochrome black T waste water from dyestuff after treatment centrifugation, supernatant is usedSpectrophotometric determination absorbance, and then calculate the clearance (in table 9) of each inorganic agent to waste water dyestuff.
The agent of table 9 different disposal is to the comparison of dye wastewater treatment effect
Modified straw Aluminum sulfate Polyacrylamide
Orange II decoloring dye waste water rate (%) 96.35 5.71 10.31
Methylene blue dye decolorization rate of wastewater (%) 60.48 2.42 1.31
Eriochrome black T decoloring dye waste water rate (%) 98.54 1.70 79.61
As shown in Table 9, equal for the decolouring treatment effect to different dyes waste water by rice straw being carried out after modificationObviously be better than conventional flocculant aluminum sulfate and polyacrylamide. China is large agricultural country, produces every year a large amount of agricultural stalks,Except fraction is for compost, feed, all the other major parts are all carried out burning disposal, not only do not reach recycling, andAnd burn the flue gas producing and can bring a series of environment, social concern. By stalk is carried out to modification, not only can be fineAddress the above problem, and have good treatment effect for waste water from dyestuff, realized agricultural wastes recycling and ringThe dual purpose that border is administered.

Claims (6)

1. a method of utilizing modified straw dye wastewater treatment using, is characterized in that: the method adopts two-step method to carry out stalkModification, first carries out pretreatment in conjunction with hydrogen peroxide to stalk with NaOH, then by stalk after treatment and myristyl threeAmmonio methacrylate carries out modified-reaction, the removal of recycling modified straw to orange beta-naphthol, methylene blue, eriochrome black T dyestuff in water body,Finally realize decoloring dye waste water processing, the pretreated concrete steps of described stalk are: the paddy rice that takes a certain amount of mistake 20 mesh sievesStalk and NaOH add in reactor, and rice straw and NaOH mass ratio are controlled between 1:1～1:1.5, simultaneouslyAdding a certain amount of distilled water and concentration is 3% hydrogen peroxide, the volume ratio of distilled water and hydrogen peroxide be controlled at 2:1～1.5:1 itBetween, utilize magnetic stirring apparatus to stir reactant, control stir speed (S.S.) at 250～350r/min, at room temperature stir 5～After 6h, filter, simultaneously to the continuous rinse of product, until approach neutrality, under 50～60 DEG C of conditions, dry; Modified straw withTetradecyl trimethyl ammonium chloride carries out hybrid reaction taking mass ratio as 1:1～1:1.5, stalk and the chlorination of myristyl trimethylAmmonium is 3～11 in pH value, the reaction time is that 15～25min, temperature are that 40～50 DEG C and stir speed (S.S.) are 400～500r/minUnder condition, react, the quality percentage composition of described NaOH is 10%～30%.
2. the method for utilizing modified straw dye wastewater treatment using according to claim 1, is characterized in that: described stalkFor rice straw.
3. according to claim 1 or the method for utilizing modified straw dye wastewater treatment using claimed in claim 2, its feature existsIn: be that 20 DEG C, stir speed (S.S.) are that to add dosage be 0.6g, pH=5, reaction time to be for 300r/min, modified straw in reaction temperatureWhen 20min, the percent of decolourization of the orange beta-naphthol waste water from dyestuff that modified straw is 0.03g/L to concentration is 95.71%.
4. according to claim 1 or the method for utilizing modified straw dye wastewater treatment using claimed in claim 2, its feature existsIn: be that 20 DEG C, stir speed (S.S.) are that to add dosage be 0.8g, pH=7, reaction time to be for 300r/min, modified straw in reaction temperatureWhen 25min, the methylene blue dye decolorization rate of wastewater that modified straw is 0.03g/L to concentration is 76.35%.
5. according to claim 1 or the method for utilizing modified straw dye wastewater treatment using claimed in claim 2, its feature existsIn: be that 20 DEG C, stir speed (S.S.) are that to add dosage be 0.6g, pH=7, reaction time to be for 300r/min, modified straw in reaction temperatureWhen 15min, the eriochrome black T decoloring dye waste water rate that modified straw is 0.03g/L to concentration is 97.47%.
6. according to claim 1 or the method for utilizing modified straw dye wastewater treatment using claimed in claim 2, its feature existsIn: the dosage of described modified straw is 0.8g/L～1.6g/L.
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CN108408865A (en) * 2018-01-31 2018-08-17 四川农业大学 The method for removing methylene blue using the produced exhaust-gas efficient of stalk pretreatment

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