CN102019170A - Method for preparing organic bentonite by detergent in waste washing water - Google Patents
Method for preparing organic bentonite by detergent in waste washing water Download PDFInfo
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- CN102019170A CN102019170A CN 201010299460 CN201010299460A CN102019170A CN 102019170 A CN102019170 A CN 102019170A CN 201010299460 CN201010299460 CN 201010299460 CN 201010299460 A CN201010299460 A CN 201010299460A CN 102019170 A CN102019170 A CN 102019170A
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Abstract
The present invention discloses a method for preparing organic bentonite by detergents in waste washing water, and belongs to the technical fields of environmental pollution control and new material exploitation. The method comprises the following steps: adding 25%-35% by weight of sulfuric acid or hydrochloric acid into a bentonite slurry with a particle size of 60-100 meshes and a water content of 10-15% to prepare a slurry; digesting the slurry by steam for 5-6 hours; washing to adjust the pH to 4-5; concentrating and filtering the product; drying at a temperature of 80-110 DEG C and pulverizing the product; mixing the prepared powdery product with dried quicklime powder at a ratio of 1:0.05-0.5; dropwisely adding water with a weight of 2-2.5 times of the weight of the mixture; stirring into a pasty state; reacting at a temperature of 50-65 DEG C for 24-48 hours; washing 4-5 times by water; drying and pulverizing; adding the pulverized product into waste water with sodium dodecylbenzenesulfonate to adjust the solid- liquid mass ratio to 1:1000-10000; stirring the mixture for 4-5 hours; performing the precipitation separation; drying and pulverizing. The present invention effectively absorbs and removes the sodium dodecylbenzenesulfonate in waste water when preparing organic bentonite, achieves the removal rate of above 95%, and realizes waste recovery.
Description
Technical field
The present invention relates to the exploitation of environmental pollution control and new material, relate in particular to a kind of method of utilizing the production of detergents organobentonite adsorbent in the washes.
Background technology
With the neopelex is the anion surfactant of representative, responsive to the water hardness, be difficult for oxidation, foaming power is strong, cost is lower, the synthesis technique maturation, to particulate fouling, albumen dirt and oily dirt have significant clean effect, and be good especially to the cleaning function of particulate fouling on the natural fiber, detergency strengthens with the rising of wash temperature, effect to the albumen dirt is higher than non-ionic surface active agent, and foam is abundant, is very effective washing agent, be usually used in washing powder, liquid detergent and hand cleanser, consumption is very big.Neopelex also is widely used in the washing and the degreasing of industry such as process hides, weaving except that being used for articles for washing.Exhibiting high surface activating agent waste water has been discharged in the production of neopelex, because neopelex content height in the waste water, if directly enter environment, not only influence aquatile existence, the self-purification of water is obstructed, environment is caused severe contamination, and the activity and the propagation of microbial cell there is certain inhibition, animals and plants and human body there is chronic toxic action, can upset internal system, cause anomalies such as male and female one, animal immune parasthenia, development of fetus deformity, children mental retardation.
Neopelex waste water treatment process such as coagulating sedimentation, catalytic oxidation, foam separation, charcoal absorption, biodegradation and their group technology commonly used are realized its purified treatment.Wherein absorption method is efficient, simple, but acticarbon costs an arm and a leg.
Bentonite be a kind of be the clay rock that essential mineral is formed with the montmorillonite, montmorillonite since in the broken key, lattice isomorph replace and to be adsorbed on its surperficial humus disassociation etc. former thereby electronegative, thereby cause between lattice layer in conjunction with loose, meet water and easily expand into fragment, particle decentralization height, have huge internal surface area and a large amount of exchangeable cations, make it have good adsorption performance and ion-exchange performance.Quaternary cationic surfactant can enter bentonitic interlayer by ion exchange, significantly change the size of bentonitic two-dimensional nano sheet interlayer, interlayer becomes hydrophobicity by hydrophily, it is main that adsorption mechanism becomes distributional effects by surface absorption, and the efficient that organic pollution in the water is removed in absorption arrives hundred times than original soil high tens.But owing to cationic surfactant costs an arm and a leg, thereby cause the bentonite price also very expensive, seriously limited the application of organobentonite aspect water treatment.
Summary of the invention
The objective of the invention is for overcoming the deficiencies in the prior art, provide a kind of anion surfactant that exists in the washes that utilizes to come modified alta-mud, synthetic organobentonite, synthetic organobentonite is used for treatment of Organic Wastewater as adsorbent.
The technical solution used in the present invention is in turn include the following steps:
1) be that 25%～35% sulfuric acid or hydrochloric acid add particle diameter in 60 orders～100 orders and water content are 10～15% bentonite slurry with mass fraction, fully stir, make mud, use steam digestion 5～6h again, stirred once every 15 minutes therebetween, through wash to pH be 4～5, concentrate, filter, 80 ℃～110 ℃ dry down and pulverizing;
2) powdery product that makes is mixed according to 1: 0.05～0.5 ratio with dry quick lime powder, be added dropwise to the water of weight while stirring again for 2～2.5 times in this mixture, stir into pasty state, place thermostatic drying chamber, in temperature is 50～65 ℃ of reaction 24h～48h down, wash 4～5 times, oven dry is milled;
3) will the mill product that obtains adds and contains in the waste water of neopelex, and the solid-liquid mass ratio is 1: 1000～10000, stirs 4～5h, precipitate and separate, and oven dry, milling gets final product.
The invention has the beneficial effects as follows:
1, the present invention is a modifier with the neopelex in the washes, utilizes the anion surfactant that exists in the washes to synthesize organobentonite.At the preparation bentonite simultaneously, effectively the neopelex in the waste water is removed in absorption, has not only removed the neopelex in the waste water but also has synthesized organobentonite, realizes waste recovery.
2, prepared organobentonite is cheap, and water treatment effect is obvious, and clearance is higher than 95%, reaches the effect of the treatment of wastes with processes of wastes against one another, has very strong economy and practical value.
The specific embodiment
Earlier be that 25%～35% sulfuric acid or hydrochloric acid add particle diameter in 60 orders～100 orders and water content are 10～15% bentonite slurry with mass fraction, bentonite can adopt sodium bentonite or calcium-base bentonite, through fully stirring, make mud, use steam digestion 5～6h again, stirred once every 15 minutes therebetween, through wash to pH be 4～5, concentrate, filter, drying is also pulverized under 80 ℃～110 ℃.Then the powdery product that makes is mixed according to 1: 0.05～0.5 ratio with dry quick lime powder, be added dropwise to the water of weight while stirring again for 2～2.5 times in this mixture, stir into pasty state, place thermostatic drying chamber, in temperature is 50～65 ℃ of reaction 24h～48h down, wash 4～5 times, oven dry is milled; The product adding that obtains of will milling at last contains in the waste water of neopelex, and the solid-liquid mass ratio is 1: 1000～10000, stirs 4～5h, precipitate and separate, and oven dry gets final product after milling.
4 embodiment of the present invention below further are provided:
Embodiment 1
With mass fraction is that 25% hydrochloric acid adds particle diameter in 60 order order water content are 12% sodium bentonite slurries, fully stirs, and makes mud, use steam digestion 5h again, stirred once in per therebetween 15 minutes, through wash to pH be 4, concentrate, filter, drying is also pulverized under 80 ℃; The powder that makes and the dry quick lime powder proportion according to 1: 0.05 is mixed, stir again on one side and be added dropwise to the water that weight is 2 times in this mixture, stir into pasty state, placing thermostatic drying chamber, is 50 ℃ of reaction 24h down in temperature, washes 4 times, oven dry is milled; In the waste water that contains neopelex that the product that obtains milling adds, solid-to-liquid ratio is 1: 1000 stirring 4h, precipitate and separate, and oven dry, milling obtains organobentonite.
Adding 50mL in the 200mL conical flask, to contain luxuriant and rich with fragrance concentration be 1mg/L waste water, adds the 25mg organobentonite.Put into constant temperature oscillator, at 25 ℃, vibration is 2 hours under the 200rpm condition, takes out the back centrifugation, measures concentration with ultraviolet-uisible spectrophotometer, and clearance is 99.1%.
Embodiment 2
With mass fraction is that 25% hydrochloric acid adds particle diameter in 100 order water content are 10% calcium-base bentonite slurries, fully stirs, and makes mud, use steam digestion 6h again, stirred once in per therebetween 15 minutes, through wash to pH be 5, concentrate, filter, drying is also pulverized under 110 ℃; The powder that makes and the dry quick lime powder proportion according to 1: 0.5 is mixed, stir again on one side and be added dropwise to the water that weight is 2 times in this mixture, stir into pasty state, placing thermostatic drying chamber, is 50 ℃ of reaction 48h down in temperature, washes 5 times, oven dry is milled; In the waste water that contains neopelex that the product that obtains milling adds, solid-to-liquid ratio is 1: 10000 stirring 5h, precipitate and separate, and oven dry, milling obtains organobentonite.
Adding 50mL in the 200mL conical flask, to contain beta naphthal concentration be 15mg/L waste water, adds the 25mg organobentonite.Put into constant temperature oscillator, at 25 ℃, vibration is 2 hours under the 200rpm condition, takes out the back centrifugation, measures concentration with ultraviolet-uisible spectrophotometer, and clearance is 96.7%.
Embodiment 3
With mass fraction is that 35% sulfuric acid adds particle diameter in 100 order water content are 13% calcium-base bentonite slurries, fully stirs, and makes mud, use steam digestion 6h again, stirred once in per therebetween 15 minutes, through wash to pH be 5, concentrate, filter, drying is also pulverized under 110 ℃; The powder that makes and the dry quick lime powder proportion according to 1: 0.5 is mixed, stir again on one side and be added dropwise to the water that weight is 2.5 times in this mixture, stir into pasty state, placing thermostatic drying chamber, is 65 ℃ of reaction 24h down in temperature, washes 4 times, oven dry is milled; In the waste water that contains neopelex that the product that obtains milling adds, solid-to-liquid ratio is 1: 10000 stirring 5h, precipitate and separate, and oven dry, milling obtains organobentonite.
Adding 50mL in the 200mL conical flask, to contain phenol concentration be 30mg/L waste water, adds the 25mg organobentonite.Put into constant temperature oscillator, at 25 ℃, vibration is 2 hours under the 200rpm condition, takes out the back centrifugation, measures concentration with ultraviolet-uisible spectrophotometer, and clearance is 99.3%.
Embodiment 4
With mass fraction is that 35% sulfuric acid adds particle diameter in 60 order water content are 15% sodium bentonite slurries, fully stirs, and makes mud, use steam digestion 5h again, stirred once in per therebetween 15 minutes, through wash to pH be 5, concentrate, filter, drying is also pulverized under 110 ℃; The powder that makes and the dry quick lime powder proportion according to 1: 0.5 is mixed, stir again on one side and be added dropwise to the water that weight is 2.5 times in this mixture, stir into pasty state, placing thermostatic drying chamber, is 65 ℃ of reaction 48h down in temperature, washes 4 times, oven dry is milled; In the waste water that contains neopelex that the product that obtains milling adds, solid-to-liquid ratio is 1: 1000 stirring 5h, precipitate and separate, and oven dry, milling obtains organobentonite.
Adding 50mL nitrobenzene-containing concentration in the 200mL conical flask is 5mg/L waste water, adds the 25mg organobentonite.Put into constant temperature oscillator, at 25 ℃, vibration is 2 hours under the 200rpm condition, takes out the back centrifugation, measures concentration with ultraviolet-uisible spectrophotometer, and clearance is 95.4%.
Claims (2)
1. one kind is utilized the production of detergents bentonite method in the washes, it is characterized in that in turn including the following steps:
1) be that 25%～35% sulfuric acid or hydrochloric acid add particle diameter in 60 orders～100 orders and water content are 10～15% bentonite slurry with mass fraction, fully stir, make mud, use steam digestion 5～6h again, stirred once every 15 minutes therebetween, through wash to pH be 4～5, concentrate, filter, 80 ℃～110 ℃ dry down and pulverizing;
2) powdery product that makes is mixed according to 1: 0.05～0.5 ratio with dry quick lime powder, be added dropwise to the water of weight while stirring again for 2～2.5 times in this mixture, stir into pasty state, place thermostatic drying chamber, in temperature is 50～65 ℃ of reaction 24h～48h down, wash 4～5 times, oven dry is milled;
3) will the mill product that obtains adds and contains in the waste water of neopelex, and making the solid-liquid mass ratio is 1: 1000～10000, stirs 4～5h, precipitate and separate, and oven dry, milling gets final product.
2. a kind of production of detergents bentonite method of utilizing in the washes according to claim 1, it is characterized in that: described bentonite is sodium bentonite or calcium-base bentonite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102994600A CN102019170B (en) | 2010-09-27 | 2010-09-27 | Method for preparing organic bentonite by detergent in waste washing water |
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| CN2010102994600A CN102019170B (en) | 2010-09-27 | 2010-09-27 | Method for preparing organic bentonite by detergent in waste washing water |
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| CN102019170A true CN102019170A (en) | 2011-04-20 |
| CN102019170B CN102019170B (en) | 2012-07-04 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5447881A (en) * | 1977-09-22 | 1979-04-14 | Hiroya Inaba | Surfactant associating and aggregating agent |
| CN101279239A (en) * | 2008-01-21 | 2008-10-08 | 浙江瑞普环境技术有限公司 | Organic modified mineral adsorbing material and method of producing the same |
| CN101757886A (en) * | 2010-02-09 | 2010-06-30 | 浙江林学院 | Production method of environment-friendly chitosan intercalation composite bentonite adsorbent |
-
2010
- 2010-09-27 CN CN2010102994600A patent/CN102019170B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5447881A (en) * | 1977-09-22 | 1979-04-14 | Hiroya Inaba | Surfactant associating and aggregating agent |
| CN101279239A (en) * | 2008-01-21 | 2008-10-08 | 浙江瑞普环境技术有限公司 | Organic modified mineral adsorbing material and method of producing the same |
| CN101757886A (en) * | 2010-02-09 | 2010-06-30 | 浙江林学院 | Production method of environment-friendly chitosan intercalation composite bentonite adsorbent |
Non-Patent Citations (2)
| Title |
|---|
| 《Water Research》 20070603 Natasja Schouten et al. Selection and evaluation of adsorbents for the removal of anionic surfactants from laundry rinsing water 第41卷, 2 * |
| 《世界地质》 20010331 杨立红等 膨润土的改性及在有机废水处理中的应用 第20卷, 第1期 2 * |
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