CN112591869B - Treatment method of organic wastewater - Google Patents
Treatment method of organic wastewater Download PDFInfo
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- CN112591869B CN112591869B CN202011316510.1A CN202011316510A CN112591869B CN 112591869 B CN112591869 B CN 112591869B CN 202011316510 A CN202011316510 A CN 202011316510A CN 112591869 B CN112591869 B CN 112591869B
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- oxide
- diatomite
- ozone
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention belongs to the field of sewage treatment, and discloses a method for treating organic wastewater, which comprises the following steps: introducing wastewater into a treatment tank body, wherein the bottom of the tank body is provided with a micro-nano ozone bubble generator, the middle of the tank body is provided with a packing layer, and packing particles in the packing layer are ozone catalytic treatment agents; discharging the treated water from the top of the tank body; the relationship between the volume of the packing layer and the treatment capacity per minute is 8-12; the flow rate of ozone used per cubic meter of waste water is more than 40g/m 3 (ii) a The ozone catalytic treatment agent comprises diatomite-based porous filler, and transition metal oxide and rare earth oxide loaded in the porous filler; the transition metal oxide is one of titanium oxide and nickel oxide; the rare earth oxide is lanthanum oxide or yttrium oxide. The method can improve the removal rate of COD in the wastewater by adopting the specific ozone catalyst under the condition of specific flow and catalyst dosage.
Description
Technical Field
The invention belongs to the field of sewage treatment, and particularly relates to a method for treating organic wastewater.
Background
In various sewage treatment processes, ozone is adopted for removing organic matters in the prior art, and the ozone can generate active hydroxyl, so that the organic matters are decomposed, and the content of the organic matters in water is reduced.
CN201910280822.2 discloses a sewage treatment method by ozone-supported catalyst synergistic reaction. The method comprises the following steps: (1) Adding coagulant and coagulant aid into the sewage to be treated and stirring to form water containing micro floccules; (2) Introducing high-density nano bubbles into the water body containing the micro floccules treated in the step (1), removing the micro floccules by using a mud scraper, and separating the micro floccules from the water body; (3) Conveying the water body obtained by separation in the step (2) into a catalytic oxidation tower, mixing ozone and high-pressure return water of the catalytic oxidation tower by using an ejector, feeding the mixture into the catalytic oxidation tower, adding the ozone in a circulating manner, and carrying out catalytic oxidation reaction at normal temperature and normal pressure; the catalyst filled in the catalytic oxidation tower is a supported catalyst with the active component of transition metal oxide and the carrier of alumina and/or ceramsite.
But it has problems in that: how to improve the removal rate of COD in the water body.
Disclosure of Invention
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a method for treating organic wastewater, which can improve the removal rate of COD in wastewater by using a specific ozone catalyst under the condition of a specific flow rate and a specific catalyst dosage.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for treating organic wastewater specifically comprises the following steps: introducing wastewater into a treatment tank body, wherein the bottom of the tank body is provided with a micro-nano ozone bubble generator, the middle of the tank body is provided with a packing layer, and packing particles in the packing layer are ozone catalytic treatment agents; discharging the treated water from the top of the tank body;
the relation between the volume of the packing layer and the treatment capacity per minute is 8-12;
the flow rate of ozone used in per cubic meter of waste water is more than 40g/m 3 ；
The ozone catalytic treatment agent comprises diatomite-based porous filler, and transition metal oxide and rare earth oxide loaded in the porous filler; the transition metal oxide is one of titanium oxide and nickel oxide; the rare earth oxide is lanthanum oxide or yttrium oxide.
In the above method for treating organic wastewater, the filler particles have a particle size of 1 to 1.5cm.
In the method for treating the organic wastewater, the distance between the bottom of the packing layer and the micro-nano ozone bubble generator is 30-50cm.
In the above-mentioned method for treating organic wastewater, the wastewater is adjusted to a pH of 7.5 to 8.5 before the treatment.
In the method for treating organic wastewater, the diatomite-based porous filler contains 1-3% of nano silver powder.
In the above method for treating organic wastewater, the filler particles are prepared by the following steps:
step 1: preparing the diatomite-based porous filler: mixing diatomite, carbon powder, an adhesive and water, and then performing ball milling and granulation;
step 2: the particles are sent into a high-temperature resistance furnace for calcination, and the calcination is divided into three stages: heating to 300-350 ℃, preserving heat for 1-2h, heating to 700-750 ℃, preserving heat for 1-2h, and finally slowly cooling to normal temperature to obtain filler particles;
the weight proportions of the diatomite, the carbon powder and the adhesive are respectively as follows: 100:3-5:5-10;
and step 3: immersing filler particles into a solution containing transition metal salt and rare earth salt, taking out after soaking for a period of time, and sending the filler particles into a high-temperature resistance furnace for secondary calcination, wherein the calcination temperature is 550-600 ℃.
In the method for treating organic wastewater, 1 to 3 permillage of nano silver powder corresponding to the total weight of the diatomite and the adhesive is also added in the step 1; the carbon powder in the step 1 is a carbon nano tube.
In the method for treating organic wastewater, the specific surface area of the carbon nanotube is 200-400m 2 /g。
In the above method for treating organic wastewater, the diatomaceous earth is sieved to a particle size of 10 μm or less and then mixed with other raw materials.
In the above method for treating organic wastewater, the step 1 specifically comprises: mixing carbon powder and nano silver powder, then mixing the mixture with diatomite, finally adding an adhesive, adding water after all the powder is uniformly mixed, and uniformly stirring to form a paste.
In the above method for treating organic wastewater, the method for mixing the carbon powder and the silver nanopowder comprises the following steps: slowly adding the nano silver powder into the carbon powder, and stirring under the action of a magnetic stirrer.
The core of the invention is that:
(1) According to the invention, micro-nano bubbles and an ozone catalyst are combined, so that the decomposition efficiency of COD in wastewater can be effectively improved.
(2) The transition metal oxide and the rare earth oxide are carried in the diatomite-based filler, and can activate ozone to form hydroxyl free radicals, thereby improving the decomposition efficiency of COD in wastewater.
(3) In the preparation process of the filler, the carbon powder is used as the pore-forming agent, the pore-forming rate is high, and particularly, the carbon nano-tube is used as the pore-forming agent, so that the silver nano-powder can be uniformly adsorbed around the carbon nano-tube, and after being mixed with the diatomite, the silver nano-powder can be uniformly distributed on the surface of a gap and can cooperate with the transition metal oxide and the rare earth oxide, and the decomposition efficiency of COD is further improved.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
A preparation method of an ozone catalytic treatment agent comprises the following steps:
step 1: preparing the diatomite-based porous filler: mixing diatomite, carbon powder, an adhesive and water, and then performing ball milling and granulation;
step 2: the particles are sent into a high-temperature resistance furnace for calcination, and the calcination is divided into three stages: heating to 300-350 ℃, preserving heat for 2h, heating to 700-750 ℃, preserving heat for 2h, and finally slowly cooling to normal temperature to obtain filler particles;
the weight proportions of the diatomite, the carbon powder and the adhesive are respectively as follows: 100:4:10; the particle size of the carbon powder can be 180 meshes.
And 3, step 3: the filler particles are immersed in a solution containing transition metal salt and rare earth salt, the filler particles are taken out after being immersed for a period of time, dried and sent into a high-temperature resistance furnace for secondary calcination, the calcination temperature is 550-600 ℃, and the calcination time is half an hour.
In the solution in the step 3, the transition metal salt and the rare earth salt are respectively nickel nitrate and lanthanum nitrate, and the concentration is 1M.
Example 2
A preparation method of an ozone catalytic treatment agent comprises the following steps:
step 1: preparing the diatomite-based porous filler: mixing diatomite, carbon nano tubes, nano silver powder, an adhesive and water, and then carrying out ball milling and granulation;
the more specific preparation process comprises the following steps: slowly scattering nano silver powder into the carbon nano tube for mixing, stirring and dispersing by adopting a magnetic stirrer, then slowly adding the mixture into diatomite for stirring and dispersing, finally adding an adhesive, adding a proper amount of water after all solid powder is uniformly dispersed, forming the mixture into a mud shape, and feeding the mud into a ball mill for granulating.
Step 2: the particles are sent into a high-temperature resistance furnace for calcination, and the calcination is divided into three stages: heating to 300-350 ℃, preserving heat for 2h, heating to 700-750 ℃, preserving heat for 2h, and finally slowly cooling to normal temperature to obtain filler particles;
the weight proportions of the diatomite, the carbon nano tube and the adhesive are respectively as follows: 100:3:10; the weight of the nano silver powder is 2 per mill of the weight of the diatomite and the adhesive. The binder is selected to be cement.
And 3, step 3: and (2) soaking the filler particles in a solution containing transition metal salt and rare earth salt for 12 hours, taking out, drying and sending into a high-temperature resistance furnace for secondary calcination at the temperature of 550-600 ℃ for half an hour.
In the solution in the step 3, the transition metal salt and the rare earth salt are respectively nickel nitrate and lanthanum nitrate, and the concentration is 1M.
Example 3
A preparation method of an ozone catalytic treatment agent comprises the following steps:
step 1: preparing the diatomite-based porous filler: mixing diatomite, carbon nano tubes, nano silver powder, an adhesive and water, and then carrying out ball milling and granulation;
the more specific preparation process comprises the following steps: slowly scattering nano silver powder into the carbon nano tube for mixing, stirring and dispersing by adopting a magnetic stirrer, then slowly adding the mixture into diatomite for stirring and dispersing, finally adding an adhesive, adding a proper amount of water after all solid powder is uniformly dispersed, forming the mixture into a mud shape, and feeding the mud into a ball mill for granulating.
Step 2: the particles are sent into a high-temperature resistance furnace for calcination, and the calcination is divided into three stages: heating to 300-350 ℃, preserving heat for 2h, heating to 700-750 ℃, preserving heat for 2h, and finally slowly cooling to normal temperature to obtain filler particles;
the weight proportions of the diatomite, the carbon nano tube and the adhesive are respectively as follows: 100:5:5; the weight of the nano silver powder is 3 per mill of the weight of the diatomite and the adhesive. The binder is selected to be cement.
And step 3: and (2) soaking the filler particles in a solution containing transition metal salt and rare earth salt for 12 hours, taking out, drying and sending into a high-temperature resistance furnace for secondary calcination at the temperature of 550-600 ℃ for half an hour.
In the solution in step 3, the transition metal salt and the rare earth salt are respectively nickel nitrate and lanthanum nitrate, and the concentration of the transition metal salt and the rare earth salt is 1M.
Example 4
A preparation method of an ozone catalytic treatment agent comprises the following steps:
step 1: preparing the diatomite-based porous filler: mixing diatomite, carbon nano tubes, nano silver powder, an adhesive and water, and then performing ball milling and granulation;
the more specific preparation process comprises the following steps: slowly scattering nano silver powder into the carbon nano tube for mixing, stirring and dispersing by adopting a magnetic stirrer, then slowly adding the mixture into diatomite for stirring and dispersing, finally adding an adhesive, adding a proper amount of water after all solid powder is uniformly dispersed, forming the mixture into a mud shape, and feeding the mud into a ball mill for granulating.
Step 2: the particles are sent into a high-temperature resistance furnace for calcination, and the calcination is divided into three stages: heating to 300-350 ℃, preserving heat for 1h, heating to 700-750 ℃, preserving heat for 1h, and finally slowly cooling to normal temperature to obtain filler particles;
the weight proportions of the diatomite, the carbon nano tube and the adhesive are respectively as follows: 100:4:8; the weight of the nano silver powder is 1 per mill of the weight of the diatomite and the adhesive. The binder is selected to be cement.
And 3, step 3: and (2) soaking the filler particles in a solution containing transition metal salt and rare earth salt for 12 hours, taking out, drying and sending into a high-temperature resistance furnace for secondary calcination at the temperature of 550-600 ℃ for half an hour.
In the solution in step 3, the transition metal salt and the rare earth salt are respectively nickel nitrate and lanthanum nitrate, and the concentrations are both 1.5M.
Comparative example 1
The same as example 2, except that: step 3 does not contain nickel nitrate.
Comparative example 2
Substantially the same as in example 2, except that: step 3 does not contain lanthanum nitrate.
Comparative example 3
The carbon nanotubes are replaced by micron-sized carbon powder, and all the powders (containing nano silver powder) are simultaneously mixed.
Test method 1
Preparing a glass tank with the diameter of 20cm, introducing wastewater into the bottom of the glass tank, adjusting the pH to about 8, and discharging the treated water from the top of the glass tank; filling a packing layer in the middle of the glass tank, wherein the distance between the bottom of the packing layer and the bottom of the micro-nano ozone bubble generator is approximately 40cm, and the packing of the embodiments 1 and 2 and the comparative examples 1 and 2 is selected as the packing; the micro-nano ozone bubble generator (ZJC-NM series, shanghai Zhongjing environmental protection technology Co., ltd.) is arranged at the bottom of the glass tank, and the height of the filler is 30cm; the grain diameter of the filler is 1-1.5cm; the ozone generator generates micron bubbles with the flow rate of 50g/m 3 . The top of the glass tank is periodically deslagged, and the wastewater treatment speed is 3m 3 /h。
The COD content of the waste water is 500-550mg/L.
Test method 2
Preparing a glass tank with the diameter of 20cm, introducing wastewater into the bottom of the glass tank, adjusting the pH to about 8, and discharging the treated water from the top of the glass tank; filling a packing layer in the middle of the glass tank, wherein the distance between the bottom of the packing layer and the bottom of the micro-nano ozone bubble generator is approximately 40cm, and the packing of the embodiment 1 is selected as the packing; micro-nano ozone gasThe bubble generator (ZJC-NM series, shanghai Zhongjing environmental protection science and technology Limited) is arranged at the bottom of the glass tank, and the height of the filler is 25cm; the grain diameter of the filler is 1-1.5cm; the ozone generator generates micron bubbles with the flow rate of 50g/m 3 . The top of the glass tank is periodically deslagged, and the wastewater treatment speed is 3m 3 /h。
The COD content of the wastewater is 500-550mg/L.
Test method 3
Preparing a glass tank with the diameter of 20cm, introducing wastewater into the bottom of the glass tank, adjusting the pH to about 8, and discharging the treated water from the top of the glass tank; filling a packing layer in the middle of the glass tank, wherein the distance between the bottom of the packing layer and the bottom of the micro-nano ozone bubble generator is approximately 40cm, and the packing of the embodiment 2 is selected as the packing; the micro-nano ozone bubble generator (ZJC-NM series, shanghai Zhongjing environmental protection science and technology limited) is arranged at the bottom of the glass tank, and the height of the filler is 28cm; the grain diameter of the filler is 1-1.5cm; the ozone generator generates micron bubbles with the flow rate of 50g/m 3 . The top of the glass tank is periodically deslagged, and the wastewater treatment speed is 3m 3 /h。
The COD content of the wastewater is 500-550mg/L.
The test results are as follows:
test method 1
| Example 1 | Example 2 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| COD value in treated water | 107 | 36 | 270 | 165 | 85 |
Test method 2
The COD value in the treated water was 123.
Test method 3
The COD value of the treated water is 45.
The following conclusions can be drawn from the above tests:
1. the ozone catalyst with transition metal and rare earth metal loaded on the micro-nano bubbles and the diatomite-based filler can improve the COD reduction effect of the wastewater.
2. The diatomite-based filler is adopted to load transition metal and rare earth metal, so that the oxidation activity of ozone can be improved;
3. the carbon nano tube is used as a pore forming agent, and can distribute the nano silver powder on the surface of pores, so that the treatment efficiency of the wastewater is improved.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such modifications are intended to be included in the scope of the present invention.
Claims (5)
1. A method for treating organic wastewater is characterized by comprising the following steps: the method specifically comprises the following steps: introducing wastewater into a treatment tank body, wherein the bottom of the tank body is provided with a micro-nano ozone bubble generator, the middle of the tank body is provided with a packing layer, and packing particles in the packing layer are ozone catalytic treatment agents; discharging the treated water from the top of the tank body;
the relation between the volume of the packing layer and the treatment capacity per minute is 8-12;
the flow rate of ozone used in per cubic meter of waste water is more than 40g/m 3 ；
The ozone catalytic treatment agent comprises diatomite-based porous filler and transition metal oxide and rare earth oxide loaded in the porous filler; the transition metal oxide is one of titanium oxide and nickel oxide; the rare earth oxide is lanthanum oxide or yttrium oxide;
the diatomite-based porous filler contains 1-3 per mill of nano silver powder;
the filler particles are prepared by the following steps:
step 1: preparing a diatomite-based porous filler; slowly adding nano silver powder into carbon powder, stirring under the action of a magnetic stirrer to obtain a mixture, then mixing the mixture with diatomite, finally adding an adhesive, adding water after all the powder is uniformly mixed, uniformly stirring to form a paste, and carrying out ball milling and granulation;
the nano silver powder is equivalent to 1-3 per mill of the total weight of the diatomite and the adhesive; the carbon powder is a carbon nano tube;
and 2, step: the particles are sent into a high-temperature resistance furnace for calcination, and the calcination is divided into three stages: heating to 300-350 ℃, preserving heat for 1-2h, heating to 700-750 ℃, preserving heat for 1-2h, and finally slowly cooling to normal temperature to obtain filler particles;
the weight proportions of the diatomite, the carbon powder and the adhesive are respectively as follows: 100:3-5:5-10;
and step 3: immersing filler particles into a solution containing transition metal salt and rare earth salt, taking out after soaking for a period of time, and sending the filler particles into a high-temperature resistance furnace for secondary calcination, wherein the calcination temperature is 550-600 ℃.
2. The method for treating organic wastewater according to claim 1, wherein: the particle size of the filler particles is 1-1.5cm.
3. The method for treating organic wastewater according to claim 1, wherein: the wastewater is adjusted to a pH value of 7.5-8.5 prior to treatment.
4. The method for treating organic wastewater according to claim 1, wherein: the specific surface area of the carbon nano tube is 200-400m 2 /g。
5. The method for treating organic wastewater according to claim 3, wherein: the diatomite is sieved to be below 10 mu m and then is mixed with other raw materials.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603054A (en) * | 2012-03-15 | 2012-07-25 | 哈尔滨工业大学 | Water treatment method for catalyzing ozone by utilizing nano silver |
| CN104891713A (en) * | 2015-06-23 | 2015-09-09 | 杭州大地环保工程有限公司 | Catalytic ozonation process for treatment of organic wastewater |
| CN106984330A (en) * | 2017-04-25 | 2017-07-28 | 四川师范大学 | The preparation method of ozone Heterogeneous oxidation solid catalyst |
| CN111392914A (en) * | 2020-04-26 | 2020-07-10 | 北京禹涛环境工程有限公司 | Heterogeneous composite catalytic oxidation sewage advanced treatment method and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE424373T1 (en) * | 1998-09-08 | 2009-03-15 | Meidensha Electric Mfg Co Ltd | METHOD FOR THE DECOMPOSITION OF BROMIC ACID USING PHOTOCATALYST |
| CN101269892A (en) * | 2008-05-04 | 2008-09-24 | 哈尔滨工业大学 | Method for removing subaqueous organic matter with catalysis ozone oxidization |
| CN105366785A (en) * | 2015-12-18 | 2016-03-02 | 北京伟创力科技有限公司 | Method for improving utilization efficiency of ozone and reducing COD of wastewater |
| CN109621975B (en) * | 2019-01-17 | 2020-06-12 | 中国石油大学(北京) | Supported ozone catalytic oxidation catalyst and preparation method and application thereof |
| CN110066044A (en) * | 2019-04-09 | 2019-07-30 | 北京京创净源环境技术研究院有限公司 | A kind of sewage water treatment method of ozone-loaded catalyst concerted reaction |
-
2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603054A (en) * | 2012-03-15 | 2012-07-25 | 哈尔滨工业大学 | Water treatment method for catalyzing ozone by utilizing nano silver |
| CN104891713A (en) * | 2015-06-23 | 2015-09-09 | 杭州大地环保工程有限公司 | Catalytic ozonation process for treatment of organic wastewater |
| CN106984330A (en) * | 2017-04-25 | 2017-07-28 | 四川师范大学 | The preparation method of ozone Heterogeneous oxidation solid catalyst |
| CN111392914A (en) * | 2020-04-26 | 2020-07-10 | 北京禹涛环境工程有限公司 | Heterogeneous composite catalytic oxidation sewage advanced treatment method and system |
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