CN114212840A - Deamination active bacterium glutamic acid water treatment agent for high-salt water purification and preparation method and application thereof - Google Patents

Deamination active bacterium glutamic acid water treatment agent for high-salt water purification and preparation method and application thereof Download PDF

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CN114212840A
CN114212840A CN202111325267.4A CN202111325267A CN114212840A CN 114212840 A CN114212840 A CN 114212840A CN 202111325267 A CN202111325267 A CN 202111325267A CN 114212840 A CN114212840 A CN 114212840A
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treatment agent
glutamic acid
water treatment
water
deamination
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CN114212840B (en
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李荣国
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Beijing Babor Water Environment Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds

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  • Hydrology & Water Resources (AREA)
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  • Environmental & Geological Engineering (AREA)
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  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

The invention discloses a deamination active bacterium glutamic acid water treatment agent for purifying high-salt water, and a preparation method and application thereof, wherein the water treatment agent is prepared from the following raw materials in percentage by weight: 15.5-20.8% of poly dimethyl diallyl ammonium chloride, 0.2-0.8% of sodium glutamate, 3-5% of alkaline substances, 1.5-3.5% of bentonite, 0.03-0.05% of potassium dihydrogen phosphate and 70-80% of deionized water. The deamination active bacterium glutamic acid water treatment agent provided by the invention has good purification effect and small using amount, is an energy-saving and low-carbon novel water purification material, and effectively solves the problems that high-salt water is difficult to purify by using polyaluminium and polyacrylamide and blocks a subsequent desalting equipment ultrafiltration reverse osmosis membrane to frequently pollute and block.

Description

Deamination active bacterium glutamic acid water treatment agent for high-salt water purification and preparation method and application thereof
Technical Field
The invention relates to a high-salinity wastewater purification material, in particular to a deamination active bacterium glutamic acid water treatment agent for high-salinity wastewater purification and a preparation method and application thereof.
Background
A large amount of industrial wastewater is often produced in thermal power plants, waste incineration power plants, chemical plants and the like, wherein the content of industrial waste salt often exceeds the discharge standard, and aiming at desalting and purifying treatment of high-salt water, the secondary hazard of environmental pollution is reduced, the environmental pollution and the greenhouse effect are reduced, so that the method is an important work of energy conservation and emission reduction advocated at present. Water purification materials are currently in a high development stage, and the following are mainly available: coagulant polyaluminium chloride, coagulant polyferric sulfate, coagulant polyferric chloride, coagulant polyaluminium ferric silicate and high polymer polyacrylamide, and besides the water purifying materials, the water purifying materials such as polyaluminium composite silicon dioxide, poly dimethyl ammonium chloride composite calcium chloride, ferrous sulfate and the like also have certain production and application. However, the existing water purification material is difficult to completely purify high-salt water, and is easy to block subsequent desalting equipment, so that frequent fouling and blocking of an ultrafiltration reverse osmosis membrane are caused, and thus the water purification effect of the water purification material needs to be continuously improved.
With the development of nano materials and the requirement of ecological environment purification treatment, the research on ecological harmless water purification materials brings revolutionary changes, the application of nano high and new technology in other product materials also brings infinite imagination space for the new technology of the water purification materials, the water treatment of high-salt water high colloid can bring breakthrough to the novel water purification materials technically, and new climax can be brought up in the field of environmental treatment. Therefore, how to purify high-salt water by using novel materials is a hot spot of urgent research.
Disclosure of Invention
The invention aims to solve the problems and provide a deamination active bacteria glutamic acid water treatment agent for purifying high-salt water, a preparation method and application thereof.
The purpose of the invention is realized by the following technical scheme:
a deamination active bacteria glutamic acid water treatment agent for purifying high-salt water is prepared from the following raw materials in percentage by weight: 15.5-20.8% of poly dimethyl diallyl ammonium chloride, 0.2-0.8% of sodium glutamate, 3-5% of inorganic base, 1.5-3.5% of bentonite, 0.03-0.05% of potassium dihydrogen phosphate and 70-80% of deionized water.
As a further technical scheme of the invention, the fertilizer is prepared from the following raw materials in percentage by weight: 18.8 percent of poly dimethyl diallyl ammonium chloride, 0.5 percent of sodium glutamate, 5 percent of inorganic base, 3.5 percent of bentonite, 0.05 percent of monopotassium phosphate and 72.15 percent of deionized water.
As a further technical scheme of the invention, the sodium glutamate is poly sodium glutamate with molecular weight more than 50 ten thousand, and is prepared by biological purification.
As a further technical scheme of the invention, the poly-dimethyl-diallyl-ammonium chloride is non-linear poly-dimethyl-diallyl-ammonium chloride.
As a further technical solution of the present invention, the inorganic base is selected from one or more of sodium hydroxide, potassium hydroxide, sodium bicarbonate, sodium sulfide, and sodium phosphate, and sodium bicarbonate is particularly preferred.
The invention also provides a preparation method of the deamination active bacteria glutamic acid water treatment agent for purifying high-salt water, which comprises the following steps:
(1) respectively dissolving bentonite and an alkaline substance in partial deionized water to obtain a bentonite aqueous solution and an inorganic alkaline aqueous solution for later use;
(2) adding poly dimethyl diallyl ammonium chloride and the balance of deionized water into a reaction kettle, uniformly stirring, then adding an inorganic alkaline water solution, and uniformly stirring to obtain an alkaline solution with the pH value of more than 8.5;
(3) adding sodium glutamate into the alkaline solution obtained in the step (2), heating for reaction, and evaporating and replacing amino groups by using a reaction kettle;
(4) and (3) after the reaction is finished, adding the bentonite aqueous solution prepared in the step (1) into a reaction kettle, uniformly stirring, adding potassium dihydrogen phosphate, stirring, precipitating and filtering to obtain liquid, namely the deamination active bacterium glutamic acid water treatment agent.
As a further technical scheme of the invention, in the step (1), bentonite is soaked in deionized water at 55-65 ℃ for 1-5 hours, and the weight ratio of the bentonite to the water is 1-3: 5-8.
As a further technical scheme of the invention, in the step (2), at room temperature, poly dimethyl diallyl ammonium chloride and water are dissolved in a reaction kettle, wherein the weight ratio of the water to the poly dimethyl diallyl ammonium chloride is 3-5: 1.
As a further technical scheme of the invention, in the step (3), the heating reaction temperature is 35-45 ℃, the reaction time is 1-5 hours, and the replaced amino is absorbed by spraying.
After the reaction is finished, cleaning the reaction kettle, and finishing and packaging the precipitate to be used as waste treatment.
The invention also provides the application of the deamination active bacteria glutamic acid water treatment agent in the high-salinity water of the thermal power plant, and particularly, when the deamination active bacteria glutamic acid water treatment agent is used, the water treatment agent is diluted by 30-50 times, and the deamination active bacteria glutamic acid water treatment agent is added into the high-salinity water of the thermal power plant by a metering pump according to the metering of about 30 g/ton water.
Compared with the prior art, the amino-activated bacteria glutamic acid water treatment agent has good purification effect and extremely small dosage, is an energy-saving and low-carbon novel water purification material, effectively solves the problems that high-salt water is difficult to purify by using polyaluminium and polyacrylamide and blocks the ultrafiltration reverse osmosis membrane of subsequent desalting equipment frequently, and can enable suspended matters, COD (chemical oxygen demand) and heavy metals to reach the industrial recycling standard by adopting the amino-activated bacteria glutamic acid water treatment agent to treat high-salt wastewater.
Detailed Description
The present invention is described in detail below with reference to specific examples, but the present invention is not limited thereto in any way.
Example 1
A deamination active bacteria glutamic acid water treatment agent for purifying high-salt water is prepared from the following raw materials in percentage by weight: 15.5% of poly dimethyl diallyl ammonium chloride, 0.2% of sodium glutamate, 3% of sodium bicarbonate, 1.5% of bentonite, 0.03% of monopotassium phosphate and 79.77% of deionized water.
The preparation method comprises the following steps:
1) soaking bentonite in deionized water at 60 ℃ for 2 hours for later use, wherein the weight ratio of the bentonite to the water is 1:5, and preparing sodium bicarbonate into a saturated solution for later use;
2) adding water and poly-dimethyl diallyl ammonium chloride into a reaction kettle according to the weight ratio of 3:1, stirring at the speed of 60 revolutions per minute for 30-40 minutes to slowly dissolve the poly-dimethyl diallyl ammonium chloride, adding a saturated solution of sodium bicarbonate, and stirring uniformly to obtain an alkaline solution with the pH value of more than 8.5;
3) adding sodium glutamate into the alkaline solution obtained in the step 2), wherein the sodium glutamate is poly sodium glutamate with the molecular weight of more than 50 ten thousand, slowly heating to 35 ℃, reacting for 120 minutes in a reaction kettle, and absorbing amino evaporated and replaced in the reaction kettle by spraying.
4) And 3) after the step 3) is finished, adding the bentonite dissolved in the step 1) into a reaction kettle, stirring for 20 minutes, adding potassium dihydrogen phosphate, stirring for 5 minutes, stopping stirring, precipitating for 8 hours, and filtering through a 1000-mesh filter screen to obtain liquid, namely the deaminated active bacteria glutamic acid water treatment agent.
5) Cleaning the reaction kettle, and finishing and packaging the precipitate to be used as waste treatment.
Example 2
A deamination active bacteria glutamic acid water treatment agent for purifying high-salt water is prepared from the following raw materials in percentage by weight: 16.7% of polydimethyldiallylammonium chloride, 0.7% of sodium glutamate, 4% of sodium bicarbonate, 3% of bentonite, 0.04% of monopotassium phosphate and 75.56% of deionized water, and was prepared in the same manner as in example 1.
Example 3
A deamination active bacteria glutamic acid water treatment agent for purifying high-salt water is prepared from the following raw materials in percentage by weight: 18.8% of polydimethyldiallylammonium chloride, 0.5% of sodium glutamate, 5% of sodium bicarbonate, 3.5% of bentonite, 0.05% of monopotassium phosphate and 72.15% of deionized water, and was prepared in the same manner as in example 1.
Example 4
A deamination active bacteria glutamic acid water treatment agent for purifying high-salt water is prepared from the following raw materials in percentage by weight: 20.8% of polydimethyldiallylammonium chloride, 0.8% of sodium glutamate, 5% of sodium bicarbonate, 2.5% of bentonite, 0.05% of monopotassium phosphate and 70.85% of deionized water, and was prepared in the same manner as in example 1.
Example 5
A deamination active bacteria glutamic acid water treatment agent for purifying high-salt water is prepared from the following raw materials in percentage by weight: 17.3% of polydimethyldiallylammonium chloride, 0.6% of sodium glutamate, 4.5% of sodium bicarbonate, 3.2% of bentonite, 0.05% of monopotassium phosphate and 74.35% of deionized water, and was prepared in the same manner as in example 1.
Comparative example 1
As comparative product 1, a coagulant polyaluminium chloride available from Henan Yuan Feng water purification Material Co.
Comparative example 2
A flocculant, polyacrylamide, purchased from environmental protection technologies ltd, fond of fondanlon, henna, was used as comparative product 2.
The water treatment agents prepared in the embodiments 1 to 5 and the comparative products of the comparative examples 1 to 2 are respectively used for high-salinity water treatment of a thermal power plant, and the effects are tested and specifically: the water treatment agent prepared in examples 1 to 5 and the comparative product prepared in comparative examples 1 to 2 were added to the high-salt water of a thermal power plant, the high-salt water of the thermal power plant was diluted by 40 times, and the water quality of the original high-salt water of the thermal power plant and the main indexes of the water quality to be treated were as shown in table 1, wherein the water quality was measured by a metering pump in an amount of 30 g/ton water.
TABLE 2 Water quality index (unit: mg/L)
Figure BDA0003346717050000051
As can be seen from the above Table 1, the deamination active bacteria glutamic acid water treatment agent provided by the invention can obviously reduce metal ions (Ca) in high-salinity water2+、Mg2+)、SiO2The content of COD and suspended matters can reach the industrial recycling standard by adopting a small amount of single medicament, and compared with the prior art, the calcium-magnesium ion treatment agent has particularly remarkable effect on the aspect of calcium-magnesium ion treatment, and can effectively reduce the risk of blocking subsequent desalting equipment.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (10)

1. A deamination active bacteria glutamic acid water treatment agent for purifying high-salt water is characterized by being prepared from the following raw materials in percentage by weight: 15.5-20.8% of poly dimethyl diallyl ammonium chloride, 0.2-0.8% of sodium glutamate, 3-5% of inorganic base, 1.5-3.5% of bentonite, 0.03-0.05% of potassium dihydrogen phosphate and 70-80% of deionized water.
2. The deaminating active bacterium glutamic acid water treatment agent for purifying high-salt water of claim 1, which is prepared from the following raw materials in percentage by weight: 18.8 percent of poly dimethyl diallyl ammonium chloride, 0.5 percent of sodium glutamate, 5 percent of inorganic base, 3.5 percent of bentonite, 0.05 percent of monopotassium phosphate and 72.15 percent of deionized water.
3. The deamination active bacteria glutamic acid water treatment agent for high-salt water purification as claimed in claim 1 or 2, wherein the sodium glutamate is poly sodium glutamate with molecular weight more than 50 ten thousand, and is prepared by biological purification.
4. The deamination active bacteria glutamic acid water treatment agent for high salt water purification according to claim 1 or 2, wherein the poly dimethyl diallyl ammonium chloride is non-linear poly dimethyl diallyl ammonium chloride.
5. The deaminating active bacteria glutamic acid water treatment agent for high salt water purification of claim 1 or 2, wherein the inorganic base is selected from one or more of sodium hydroxide, potassium hydroxide, sodium bicarbonate, sodium sulfide, and sodium phosphate.
6. The method for preparing the deaminating activated bacteria glutamic acid water treatment agent for purifying high salt water of claim 1, comprising the following steps:
(1) respectively dissolving bentonite and an alkaline substance in partial deionized water to obtain a bentonite aqueous solution and an inorganic alkaline aqueous solution for later use;
(2) adding poly dimethyl diallyl ammonium chloride and the balance of deionized water into a reaction kettle, uniformly stirring, then adding an inorganic alkaline water solution, and uniformly stirring to obtain an alkaline solution with the pH value of more than 8.5;
(3) adding sodium glutamate into the alkaline solution obtained in the step (2), heating for reaction, and evaporating and replacing amino groups by using a reaction kettle;
(4) and (3) after the reaction is finished, adding the bentonite aqueous solution prepared in the step (1) into a reaction kettle, uniformly stirring, adding potassium dihydrogen phosphate, stirring, precipitating and filtering to obtain liquid, namely the deamination active bacterium glutamic acid water treatment agent.
7. The preparation method of the deaminating activated bacteria glutamic acid water treatment agent for purifying high salt water of claim 6, wherein in the step (1), bentonite is soaked in deionized water at 55-65 ℃ for 1-5 hours, and the weight ratio of the bentonite to the water is 1-3: 5-8.
8. The preparation method of the deamination active bacteria glutamic acid water treatment agent for purifying the high salt water as claimed in claim 6, wherein in the step (2), the poly dimethyl diallyl ammonium chloride and the deionized water are dissolved in the reaction kettle at room temperature, and the weight ratio of the water to the poly dimethyl diallyl ammonium chloride is 3-5: 1.
9. The method for preparing the deaminating activated bacteria glutamic acid water treatment agent for purifying high salt water as claimed in claim 6, wherein in the step (3), the heating reaction temperature is 35-45 ℃, the reaction time is 1-5 hours, and the replaced amino is absorbed by spraying.
10. Use of a deaminating active bacterium glutamic acid water treatment agent as defined in any one of claims 1 to 9 for high salt water purification in high salt water of a thermal power plant.
CN202111325267.4A 2021-11-10 2021-11-10 Deamination active bacterium glutamic acid water treatment agent for high-salt water purification, and preparation method and application thereof Active CN114212840B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071587A (en) * 1990-05-31 1991-12-10 Aquatechnica, Inc. Composition and method for purifying water
RU2156741C1 (en) * 1999-12-22 2000-09-27 Государственное предприятие Комплексный научно-исследовательский и конструкторско-технологический институт водоснабжения, канализации, гидротехнических сооружений и инженерной гидрогеологии Coagulating agent for treatment of water from paint and varnish materials
JP2007029917A (en) * 2005-07-29 2007-02-08 Makoto Taniguchi Heavy metal flocculating agent
CN101172677A (en) * 2007-11-27 2008-05-07 臼井义雄 Application of polyglutamic acid or its salt in processing heavy metal in water
CN101514055A (en) * 2009-03-31 2009-08-26 华东师范大学 Micromolecular gamma-polyglutamic acid or scale inhibition application of gamma-polyglutamates in form of Na+ thereof
CN109574119A (en) * 2018-12-11 2019-04-05 嘉兴沃特泰科环保科技有限公司 Modified alta-mud and its preparation process
CN111217434A (en) * 2019-12-03 2020-06-02 广州越海生态环境科技有限公司 High-efficiency flocculant and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071587A (en) * 1990-05-31 1991-12-10 Aquatechnica, Inc. Composition and method for purifying water
RU2156741C1 (en) * 1999-12-22 2000-09-27 Государственное предприятие Комплексный научно-исследовательский и конструкторско-технологический институт водоснабжения, канализации, гидротехнических сооружений и инженерной гидрогеологии Coagulating agent for treatment of water from paint and varnish materials
JP2007029917A (en) * 2005-07-29 2007-02-08 Makoto Taniguchi Heavy metal flocculating agent
CN101172677A (en) * 2007-11-27 2008-05-07 臼井义雄 Application of polyglutamic acid or its salt in processing heavy metal in water
CN101514055A (en) * 2009-03-31 2009-08-26 华东师范大学 Micromolecular gamma-polyglutamic acid or scale inhibition application of gamma-polyglutamates in form of Na+ thereof
CN109574119A (en) * 2018-12-11 2019-04-05 嘉兴沃特泰科环保科技有限公司 Modified alta-mud and its preparation process
CN111217434A (en) * 2019-12-03 2020-06-02 广州越海生态环境科技有限公司 High-efficiency flocculant and preparation method thereof

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