CN102745831A - Treatment method of high concentration wastewater containing cyanogen and organic nitrile - Google Patents
Treatment method of high concentration wastewater containing cyanogen and organic nitrile Download PDFInfo
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- CN102745831A CN102745831A CN2011100971172A CN201110097117A CN102745831A CN 102745831 A CN102745831 A CN 102745831A CN 2011100971172 A CN2011100971172 A CN 2011100971172A CN 201110097117 A CN201110097117 A CN 201110097117A CN 102745831 A CN102745831 A CN 102745831A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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Abstract
The invention belongs to the field of wastewater treatment, and discloses a treatment method of high concentration wastewater containing cyanogen and organic nitrile. The method is characterized by comprising three steps of concentrated wastewater polymerization treatment, catalytic treatment, and oxidation treatment. The treated concentrated wastewater has a total cyanide content of 0-0.02mg / L, and can be directly treated with spray drying to obtain an organic compound fertilizer.
Description
One, technical field
The present invention relates to a kind of high density and contain cyanogen and organic nitrile wastewater treatment method.
Two, background technology
The high density that the present invention relates to contains the polymkeric substance that prussiate and organic nitrile waste water mainly contain inorganic cyanide, hydroxyacetonitrile, NSC 263496, nitrogen three acetonitriles, glycinonitrile and above-mentioned various nitriles.In waste water, above-mentioned organism total concn also contains the ammonium sulfate up to 5～30% in addition in the waste water between 10～40%.This type of waste water contains high density cyanide ion, organism, nitrile and nitrile polymer, is characterized in difficult degradation, toxicity is big, salt content is high, biodegradability is poor.
There is the investigator to adopt methods such as hydrogen peroxide oxidation process, alkaline chlorination process, ozone oxidation method, sulphur dioxide-air oxidation style to handle this waste water at present; Though through handling; Still can not remove cyanogen root and organic nitriles substance in the waste water fully, also need further to adopt biochemical processing.But because salt content is higher in the waste water, stronger to Biostatic, cause follow-up biochemical difficult treatment.
At present both at home and abroad in TP and the patent, relate to that to handle the data that contains cyanogen or nitrile wastewater treatment less, wherein relating to the processing patent that high density contains nitrile organic waste water has:
U.S. Pat 63665775A discloses the method with the burning method Treatment of Cyanide-containing Wastewater, and this method is that present treatment of high concentration contains cyanogen and organic nitrile waste water mature methods.The density wastewater during incinerator is basically all had in NSC 263496 manufacturer of domestic a few family.But adopt this method facility investment high, running cost is high, waste gas subsequent disposal difficulty.
Chinese patent CN1911837 discloses the treatment process of a kind of high density, nitrile contained organic sewage difficult to degrade, adopts polymerization under alkaline condition earlier, in filtering filtrating, adds lime then and is hydrolyzed and handles waste water.Chinese patent CN1907881 discloses a kind of treatment process of nitrile contained organic sewage difficult to degrade, adopts aeration iron-carbon micro-electrolysis-redox-flocculation sediment technology that waste water is handled.But these two kinds of methods can produce new gas phase pollution and a large amount of solid waste, and still need carry out follow-up biochemical treatment, are not suitable for high saliniferous treatment of Organic Wastewater involved in the present invention.
Chinese patent CN101391911A discloses a kind of amino-nitrile that utilizes and has produced the method that waste liquid prepares organic fertilizer, and this method is to produce at amino-nitrile to add catalyzer and dispersion agent in the waste liquid, with 30～150 ℃; Hybrid reaction under 0～1.0Mpa makes base manure, and base manure is after the nutrition allotment; Add biological inoculum fermentation 7～15 days down at 10～60 ℃; Hydrolysis becomes former fertilizer again, and former fertilizer produces organic fertilizer through nutrient allotment, granulation, drying.This method treatment time that disposes waste liquid is long, needs large-scale compost place, is not suitable for the serialization industrial production.
Three, summary of the invention
The present invention provides a kind of can remove organic nitriles substance, prussiate fully, and the high density that total cyanogen is reduced to below 0～0.02mg/L in the processed waste water contains cyanogen and organic nitrile wastewater processing technology.After the waste water drying after the processing, can be used as the fertilizer raw material.
A kind of high density that the present invention relates to contains cyanogen and the organic nitrile wastewater treatment method is accomplished as follows:
1, aggregation processing
Be used in pH 5～14 earlier, 60～100 ℃ of temperature of reaction, aggregation processing 0.1～6 hour.Aggregation processing is instead again with pH 6.5～8.0,70～90 ℃ of temperature of reaction, and 0.5～4.0 hour reaction times was best.The material of regulating pH is one or more the mixture in sodium hydroxide, Pottasium Hydroxide, ammonia, thanomin, diethylolamine, the trolamine.
2, catalytic treatment
Waste water after the aggregation processing adds catalyzer, under 120～220 ℃ of temperature, pH5～14 conditions, reacts 0.1～5 hour.Catalytic treatment is again with pH 7～9,140～200 ℃ of temperature of reaction, and 1～3 hour reaction times was best.
Above-mentioned catalyzer is one or more the mixture in sodium hydroxide, Pottasium Hydroxide, ammonia, urea, trimeric cyanamide, cyanuramide, cyanurodiamide, formaldehyde, polyoxymethylene, hexamethylenetetramine, thanomin, diethylolamine, trolamine, the ydrogen peroxide 50.
Its prescription does; In sodium hydroxide, Pottasium Hydroxide, ammonia, urea, trimeric cyanamide, cyanuramide, the cyanurodiamide one or more; Account for 0～30% of catalyst weight; In formaldehyde, polyoxymethylene, hexamethylenetetramine, thanomin, diethylolamine, trolamine, the ydrogen peroxide 50 one or more account for 0～70% of catalyst weight; The moisture content surplus.The catalyzer dosage is 0.1～10% of a waste water.
3, oxide treatment
Waste water adds oxygenant again through after the catalytic treatment, at pH 7～12, and 100～220 ℃ of following oxide treatment of temperature 0.1～2 hour, the oxygenant dosage is 0.1～5% of a wastewater flow rate.Oxide treatment is again with pH 8～10,150～190 ℃ of temperature of reaction, 0.3～1 hour reaction times, the oxygenant dosage be wastewater flow rate 0.5～2% for best.Oxygenant is one or more the compound uses in ydrogen peroxide 50, Youxiaolin, Losantin, dioxide peroxide, ozone, the oxygen.
Waste water is after above-mentioned art breading, and total cyanogen is reduced to 0～0.02mg/L.After drying, can be made into organic fertilizer.
Four, embodiment
Further specify the present invention through the practical implementation example below; The waste water that contains inorganic cyanogen of high density and organic nitrile material that embodiment adopts is produced the density wastewater during that NSC 263496 technology produces for the prussic acid method, but the present invention is not limited to NSC 263496 production technique waste water.
Mainly consisting of of waste water: NSC 263496 4.40%, hydroxyacetonitrile 5.02%, glycinonitrile 5.56%, nitrogen three acetonitriles 1.87%, SO
4 2-14.71%, total cyanogen 0.77%, COD24.44%.
Embodiment 1:
Get 2500 gram waste water, transfer pH to 7.0, be warming up to 70 ℃ with Pottasium Hydroxide, aggregation processing 2 hours, reaction back pH is 8.2.Directly add 150g catalyzer (wherein urea 15g, trimeric cyanamide 15g, thanomin 60g, polyoxymethylene 60g), be warming up to 140 ℃, react 5 hours, reaction afterwards p H is 8.9.Add the 50g Losantin at last, handled 1.5 hours for 120 ℃, handle the total cyanogen content 1.245mg/L in back in temperature.
Embodiment 2:
Get 2500 gram waste water, transfer pH to 6.8, be warming up to 80 ℃ with sodium hydroxide, aggregation processing 3 hours, reaction back pH is 7.1.Add 75g catalyzer (polyoxymethylene 15g, hexamethylenetetramine 15g, diethylolamine 45g), be warming up to 170 ℃, reacted 2 hours, reaction back pH is 8.1.Add 37.5g ydrogen peroxide 50 (concentration 27.5%), handled 1 hour, handle the total cyanogen content 0.215mg/L in back at 150 ℃.
Embodiment 3:
Get 2500 gram waste water, transfer pH to 7.5, be warming up to 90 ℃ with ammoniacal liquor, aggregation processing 1 hour, reaction back p H is 8.1.Add 90g catalyzer (trimeric cyanamide 10g, hexamethylenetetramine 50g, trolamine 30g), be warming up to 190 ℃, reacted 2 hours, reaction back pH is 9.31.Add 25g ydrogen peroxide 50 (concentration 27.5%) and 20g Losantin, handled 0.5 hour, handle the total cyanogen in back and can not detect at 180 ℃.
Claims (8)
1. a high density contains cyanogen and organic nitrile wastewater treatment method, it is characterized in that accomplishing according to the following steps:
(1) aggregation processing
Be used in pH 5～14 earlier, 60～100 ℃ of temperature of reaction, aggregation processing 0.1～6 hour;
(2) catalytic treatment
Waste water after the aggregation processing adds catalyzer, 120～220 ℃ of temperature, under pH 5～14 conditions, reacts 0.1～5 hour, and the catalyzer dosage is 0.1～10% of a wastewater flow rate;
(3) oxide treatment
Waste water adds oxygenant again through after the catalytic treatment, at pH 7～12, and 100～220 ℃ of following oxide treatment of temperature 0.1～2 hour, the oxygenant dosage is 0.1～5% of a wastewater flow rate.
2. treatment process according to claim 1 is characterized in that said aggregation processing with pH6.5～8.0,70～90 ℃ of temperature of reaction, and 0.5～4.0 hour reaction times was best.
3. treatment process according to claim 1, the material of the adjusting pH that is selected for use when it is characterized in that aggregation processing are one or more the mixtures in sodium hydroxide, Pottasium Hydroxide, ammonia, thanomin, diethylolamine, the trolamine.
4. treatment process according to claim 1, temperature of reaction is 140～200 ℃ when it is characterized in that catalytic treatment, and pH is 7～9, and the reaction times is 1～3 hour.
5. treatment process according to claim 1, catalyst system therefor is selected from one or more the mixture in sodium hydroxide, Pottasium Hydroxide, ammonia, urea, trimeric cyanamide, cyanuramide, cyanurodiamide, formaldehyde, polyoxymethylene, hexamethylenetetramine, thanomin, diethylolamine, trolamine, the ydrogen peroxide 50 when it is characterized in that catalytic treatment.
6. treatment process according to claim 5; It is characterized in that the catalyst system therefor prescription is: one or more in sodium hydroxide, Pottasium Hydroxide, ammonia, urea, trimeric cyanamide, cyanuramide, the cyanurodiamide; Account for 0～30% of catalyst weight; In formaldehyde, polyoxymethylene, hexamethylenetetramine, thanomin, diethylolamine, trolamine, the ydrogen peroxide 50 one or more account for 0～70% of catalyst weight.
7. treatment process according to claim 1, pH is 8～10 when it is characterized in that oxide treatment, 150～190 ℃ of temperature of reaction, in 0.3～1 hour reaction times, the oxygenant dosage is 0.5～2% of a wastewater flow rate.
8. treatment process according to claim 1, it levies the oxygenant that adds when being oxide treatment especially is one or more the compound uses in ydrogen peroxide 50, Youxiaolin, Losantin, dioxide peroxide, ozone, the oxygen.
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| CN2011100971172A CN102745831A (en) | 2011-04-19 | 2011-04-19 | Treatment method of high concentration wastewater containing cyanogen and organic nitrile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159557A (en) * | 2013-04-17 | 2013-06-19 | 广西新方向化学工业有限公司 | Chelated powdery water-soluble leaf fertilizer containing surfactant and preparation method of leaf fertilizer |
| CN105776693A (en) * | 2015-01-08 | 2016-07-20 | 成都中科普瑞净化设备有限公司 | Method for resource utilization of high-concentration cyanogen(nitrile) contained wastewater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189462A (en) * | 1997-01-30 | 1998-08-05 | 陈民友 | Tech. for treatment of waste water containing cyanogen by hydrogen peroxide oxidation process |
| US6238574B1 (en) * | 1998-10-30 | 2001-05-29 | The Standard Oil Company | Oxidation and ammoxidation of acrylonitrile process waste water organics |
| CN1576242A (en) * | 2003-07-29 | 2005-02-09 | 上海泰禾化工有限公司 | Paraquat waste water containing cyanogen treating method |
| CN1911837A (en) * | 2006-08-23 | 2007-02-14 | 重庆紫光化工有限责任公司 | Treatment method of high concentration undegradable nitrile containing organic waste water |
| CN101391911A (en) * | 2008-11-07 | 2009-03-25 | 四川天正化工有限责任公司 | Method for preparing organic fertilizer by using aminonitrile waste liquid |
| CN101857326A (en) * | 2010-07-05 | 2010-10-13 | 天津天达联合工程技术有限公司 | Comprehensive treatment method of high-concentration cyanogens-containing and thiocyanate-containing waste liquid |
| CN101863567A (en) * | 2010-04-29 | 2010-10-20 | 上海晶宇环境工程有限公司 | Five-stage cyanogen breaking process |
| CN101875517A (en) * | 2009-04-28 | 2010-11-03 | 苏州佳辉化工有限公司 | Method for treating cyanogen-containing wastewater |
-
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- 2011-04-19 CN CN2011100971172A patent/CN102745831A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189462A (en) * | 1997-01-30 | 1998-08-05 | 陈民友 | Tech. for treatment of waste water containing cyanogen by hydrogen peroxide oxidation process |
| US6238574B1 (en) * | 1998-10-30 | 2001-05-29 | The Standard Oil Company | Oxidation and ammoxidation of acrylonitrile process waste water organics |
| CN1576242A (en) * | 2003-07-29 | 2005-02-09 | 上海泰禾化工有限公司 | Paraquat waste water containing cyanogen treating method |
| CN1911837A (en) * | 2006-08-23 | 2007-02-14 | 重庆紫光化工有限责任公司 | Treatment method of high concentration undegradable nitrile containing organic waste water |
| CN101391911A (en) * | 2008-11-07 | 2009-03-25 | 四川天正化工有限责任公司 | Method for preparing organic fertilizer by using aminonitrile waste liquid |
| CN101875517A (en) * | 2009-04-28 | 2010-11-03 | 苏州佳辉化工有限公司 | Method for treating cyanogen-containing wastewater |
| CN101863567A (en) * | 2010-04-29 | 2010-10-20 | 上海晶宇环境工程有限公司 | Five-stage cyanogen breaking process |
| CN101857326A (en) * | 2010-07-05 | 2010-10-13 | 天津天达联合工程技术有限公司 | Comprehensive treatment method of high-concentration cyanogens-containing and thiocyanate-containing waste liquid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159557A (en) * | 2013-04-17 | 2013-06-19 | 广西新方向化学工业有限公司 | Chelated powdery water-soluble leaf fertilizer containing surfactant and preparation method of leaf fertilizer |
| CN105776693A (en) * | 2015-01-08 | 2016-07-20 | 成都中科普瑞净化设备有限公司 | Method for resource utilization of high-concentration cyanogen(nitrile) contained wastewater |
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Application publication date: 20121024 |