CN113582452A - Method for recycling reclaimed water in printing and dyeing wastewater - Google Patents
Method for recycling reclaimed water in printing and dyeing wastewater Download PDFInfo
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- CN113582452A CN113582452A CN202110893936.1A CN202110893936A CN113582452A CN 113582452 A CN113582452 A CN 113582452A CN 202110893936 A CN202110893936 A CN 202110893936A CN 113582452 A CN113582452 A CN 113582452A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000004043 dyeing Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004064 recycling Methods 0.000 title claims abstract description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 89
- 239000002028 Biomass Substances 0.000 claims abstract description 64
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 56
- 239000002131 composite material Substances 0.000 claims abstract description 55
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001179 sorption measurement Methods 0.000 claims abstract description 20
- 238000005273 aeration Methods 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 7
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 7
- 230000018044 dehydration Effects 0.000 claims abstract description 5
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 5
- 244000005700 microbiome Species 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 238000000197 pyrolysis Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000003763 carbonization Methods 0.000 claims description 4
- 239000003344 environmental pollutant Substances 0.000 claims description 4
- 125000005842 heteroatom Chemical group 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 231100000719 pollutant Toxicity 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000006798 recombination Effects 0.000 claims description 4
- 238000005215 recombination Methods 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 230000005476 size effect Effects 0.000 claims description 4
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 230000008929 regeneration Effects 0.000 abstract description 3
- 238000011069 regeneration method Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Images
Classifications
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
-
- 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
Abstract
The invention discloses a method for recycling water in printing and dyeing wastewater by using a fine ferric oxide biomass composite carbon material, which comprises the steps of adding the fine ferric oxide biomass composite carbon material into biochemical effluent of the printing and dyeing wastewater, adjusting the pH value, and feeding the mixture into an MBR (membrane bioreactor) tank; an aeration device is arranged at the bottom in the MBR tank, the adsorption capacity of the fine iron oxide biomass composite carbon material is 3-5 times larger than that of the traditional adsorption capacity, organic matters in water can be adsorbed in a very short time, the removal rate of COD and chromaticity in the wastewater can reach more than 80%, and the effluent can be directly reused for workshop production through the MBR filtration; high-concentration microorganisms are attached to the adsorption material of the MBR tank, a high-efficiency biochemical system is formed in the MBR tank, and the adsorbed organic matters can be degraded in a short time. The composite material contains fine iron oxide material, so that heavy metal antimony in the printing and dyeing wastewater can be effectively separated; the MBR pond adsorption material can regenerate after the filter-pressing dehydration of pressure filter after discharging, reuse, and adsorption material adsorption efficiency after the regeneration resumes to more than 95%.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a method for recycling printing and dyeing wastewater reclaimed water by using a fine iron oxide biomass composite carbon material.
Background
With the rapid development of industrialization in China, the problems of environmental pollution caused by industrial wastewater and consumption of fresh water resources are more and more concerned by people. According to prediction, the industrial wastewater accounts for more than 70% of the total sewage, wherein a large amount of wastewater generated in the production process of the printing and dyeing industry accounts for about 35% of the total amount of the industrial wastewater, and most of the wastewater is directly discharged after secondary treatment, so that not only is the environmental pollution caused, but also a certain proportion of capital needs to be continuously invested for consumed production water in the production process of an enterprise to maintain the normal operation of production, and the production cost of products is invisibly increased.
The secondary effluent of the printing and dyeing wastewater still has the problems of high chroma, difficult removal of COD and the like, and the biological treatment load is lower than the actually required COD load, and the important reasons of the situation are that a large amount of various complex organic matters which are difficult to biodegrade exist in the wastewater, such as aniline, nitrobenzene, azo dyes and the like. Therefore, the advanced treatment of the printing and dyeing wastewater by a biological method can not achieve good effect.
In order to realize the real advanced treatment and recycling of the printing and dyeing wastewater, people carry out extensive research on the aspects of combination of different process units, development of new processes and the like, and make great progress. The main treatment technologies include adsorption, oxidation (electrochemical oxidation, ozone oxidation, photochemical oxidation, chlorine dioxide oxidation), membrane, biological (biological activated carbon, biological aerated filter, membrane bioreactor), other technologies (biological ceramsite-ozone decolorization-ion exchange, biological flocculation-reverse osmosis), electrolysis, etc. But the technology which can really realize production operation is not more, and the methods have the defects of high investment, high operation cost, complex operation, low removal rate, accumulation of organic pollutants and inorganic salts and the like in the operation.
Disclosure of Invention
The invention aims to solve the problems that: provides a method for recycling water in printing and dyeing wastewater.
In order to solve the above problems, the present invention provides the following technical solutions:
a method for recycling printing and dyeing wastewater reclaimed water by using a fine iron oxide biomass composite carbon material comprises the following steps:
1) synthesizing a fine iron oxide biomass composite carbon material:
firstly, the aromaticity and the pore structure of the biomass functional carbon material and the size effect of composite iron oxide particles are improved by an in-situ carbon preparation technology, and a fine iron oxide biomass composite carbon material is prepared;
around thermochemical interface reaction, putting forward a pyrolysis recombination reaction of metal and organic heteroatom protected by endogenous effective components; and (3) developing pyrolysis carbonization reaction driven by exogenous newly generated particles, and establishing a mechanism for correlating pore structure development of biomass functional carbon with new particle growth, thereby preparing the fine iron oxide biomass composite carbon material.
2) Discharging a fine ferric oxide biomass composite carbon material into the printing and dyeing wastewater;
3) and recycling the fine ferric oxide biomass composite carbon material.
On the basis of the technical scheme, the invention also adopts the following further technical scheme: adding a fine ferric oxide biomass composite carbon material into the wastewater after the physicochemical and biochemical treatment, adjusting the pH value to 6-8, and then feeding the wastewater into an MBR (membrane bioreactor) tank for aeration.
The preferable technical scheme is as follows: the aeration rate is about 2.5-3 Nm3 min-1And the MBR produced water has negative pressure of-60 to-10 kPa.
The preferable technical scheme is as follows: the fine ferric oxide biomass composite carbon material can quickly adsorb COD and chroma in water after entering an MBR tank.
The preferable technical scheme is as follows: the adsorption capacity of the fine iron oxide biomass composite carbon material is about 0.9 g/g.
The preferable technical scheme is as follows: the fine iron oxide biomass composite carbon material can provide a larger specific surface area, provides a carrier for microorganisms, further provides strong biomass, and can be used for quickly degrading adsorbed organic matters under an aerobic condition to realize internal consumption of pollutants.
The preferable technical scheme is as follows: the fine ferric oxide biomass composite carbon material can be periodically discharged through an MBR (membrane bioreactor) tank after the adsorption capacity is saturated, and the discharged fine ferric oxide biomass composite carbon material is subjected to filter pressing and dehydration through a filter press and then is thermally regenerated.
The preferable technical scheme is as follows: the adsorption capacity of the regenerated fine iron oxide biomass composite carbon material can be recovered to more than 95% of the original level.
The preferable technical scheme is as follows: the fine ferric oxide biomass composite carbon material can adsorb and remove heavy metal antimony in wastewater.
The invention has the advantages that:
1. the removal of organic matters is realized under the combined action of the high-efficiency adsorption capacity and the microbial degradation of the iron oxide biomass composite carbon material;
2. the ferric oxide biomass composite carbon material is used together with an MBR process, so that the wastewater can be rapidly purified, and the COD, the chroma and the turbidity of the effluent can reach the standards of printing and dyeing production water;
3. the ferric oxide biomass composite carbon material has the function of removing heavy metal antimony, and can synchronously remove the heavy metal antimony in the wastewater;
4. the equipment applied by the method is conventional equipment of a dye printing factory or a sewage treatment plant, and can be realized by reasonably setting the process flow, so that the method is convenient to popularize and apply, and the equipment configuration cost of the factory is low.
Drawings
FIG. 1 is a flow chart of a method for recycling water in printing and dyeing wastewater
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Example 1
As shown in fig. 1, a method for recycling water in printing and dyeing wastewater comprises the following steps:
synthesizing a fine iron oxide biomass composite carbon material: firstly, the aromaticity and the pore structure of the biomass functional carbon material and the size effect of composite iron oxide particles are improved by an in-situ carbon preparation technology, and a fine iron oxide biomass composite carbon material is prepared; around thermochemical interface reaction, putting forward a pyrolysis recombination reaction of metal and organic heteroatom protected by endogenous effective components; developing exogenous newly generated particle-driven pyrolysis carbonization reaction, and establishing a mechanism for correlating pore structure development of biomass functional carbon with new particle growth, thereby preparing a fine iron oxide biomass composite carbon material;
adding fine ferric oxide biomass composite carbon material into the mixed wastewater after physicochemical and biochemical treatment, adjusting the pH value to 6, then introducing the mixed wastewater into an MBR (membrane bioreactor) tank for aeration with the aeration rate of about 2.5Nm3 min-1Group I, the MBR produced water negative pressure is-60 kPa;
the fine ferric oxide biomass composite carbon material in the MBR tank can quickly adsorb COD and chroma in water by virtue of strong adsorption capacity, and the adsorption capacity is 1 gram of special biomass porous carbon material which can adsorb 0.9 gram of dye;
the fine iron oxide biomass composite carbon material can provide a larger specific surface area, provides a carrier for microorganisms, further provides strong biomass, and quickly degrades adsorbed organic matters under aerobic conditions to realize internal consumption of pollutants;
for the fine ferric oxide biomass composite carbon material with saturated adsorption, the MBR tank can be periodically discharged, the material is subjected to thermal regeneration after being subjected to filter pressing and dehydration by a filter press, the treatment capacity of the regenerated material can be recovered to more than 95 percent,
in addition, the fine iron oxide biomass composite carbon material can adsorb and remove heavy metal antimony in the wastewater.
Example 2
A method for recycling water in printing and dyeing wastewater comprises the following steps:
synthesizing a fine iron oxide biomass composite carbon material: firstly, the aromaticity and the pore structure of the biomass functional carbon material and the size effect of composite iron oxide particles are improved by an in-situ carbon preparation technology, and a fine iron oxide biomass composite carbon material is prepared; around thermochemical interface reaction, putting forward a pyrolysis recombination reaction of metal and organic heteroatom protected by endogenous effective components; developing exogenous newly generated particle-driven pyrolysis carbonization reaction, and establishing a mechanism for correlating pore structure development of biomass functional carbon with new particle growth, thereby preparing a fine iron oxide biomass composite carbon material;
adding fine ferric oxide biomass composite carbon material into the mixed wastewater after physicochemical and biochemical treatment, adjusting the pH value to 8, then introducing the mixed wastewater into an MBR (membrane bioreactor) tank for aeration with the aeration rate of about 3Nm3 min-1The MBR produces water with negative pressure of 10 kPa;
the fine ferric oxide biomass composite carbon material in the MBR tank can quickly adsorb COD and chroma in water by virtue of strong adsorption capacity, and the adsorption capacity is 1 gram of special biomass porous carbon material which can adsorb 0.9 gram of dye;
the fine iron oxide biomass composite carbon material can provide a larger specific surface area, provides a carrier for microorganisms, further provides strong biomass, and quickly degrades adsorbed organic matters under aerobic conditions to realize internal consumption of pollutants;
for the fine ferric oxide biomass composite carbon material with saturated adsorption, the MBR tank can be periodically discharged, the material is subjected to thermal regeneration after being subjected to filter pressing and dehydration by a filter press, the treatment capacity of the regenerated material can be recovered to more than 95 percent,
in addition, the fine iron oxide biomass composite carbon material can adsorb and remove heavy metal antimony in the wastewater.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for recycling printing and dyeing wastewater reclaimed water is characterized by comprising the following steps:
1) the method for synthesizing the fine ferric oxide biomass composite carbon material comprises the following steps:
firstly, the aromaticity and the pore structure of the biomass functional carbon material and the size effect of composite iron oxide particles are improved by an in-situ carbon preparation technology, and a fine iron oxide biomass composite carbon material is prepared;
around thermochemical interface reaction, putting forward a pyrolysis recombination reaction of metal and organic heteroatom protected by endogenous effective components; developing exogenous newly generated particle-driven pyrolysis carbonization reaction, and establishing a mechanism for correlating pore structure development of biomass functional carbon with new particle growth, thereby preparing a fine iron oxide biomass composite carbon material;
2) discharging a fine ferric oxide biomass composite carbon material into the printing and dyeing wastewater;
3) and recycling the fine ferric oxide biomass composite carbon material.
2. The method for recycling the printing and dyeing wastewater reclaimed water according to claim 1, characterized by further comprising the following steps: adding a fine ferric oxide biomass composite carbon material into the wastewater after the physicochemical and biochemical treatment, adjusting the pH value to 6-8, and then feeding the wastewater into an MBR (membrane bioreactor) tank for aeration.
3. The method for recycling the printing and dyeing wastewater reclaimed water according to claim 2, wherein the aeration rate is about 2.5 to 3Nm3min-1And the MBR produced water has negative pressure of-60 to-10 kPa.
4. The method for recycling the printing and dyeing wastewater reclaimed water according to claim 1, wherein the fine iron oxide biomass composite carbon material can rapidly adsorb COD and chroma in the water after entering an MBR tank.
5. The method for recycling the printing and dyeing wastewater reclaimed water according to claim 4, wherein the adsorption capacity of the fine iron oxide biomass composite carbon material is 0.9 g/g.
6. The method for recycling the printing and dyeing wastewater reclaimed water according to claim 1, wherein the fine iron oxide biomass composite carbon material can provide a large specific surface area, provide a carrier for microorganisms, further provide strong biomass, and rapidly degrade adsorbed organic matters under aerobic conditions to realize internal consumption of pollutants.
7. The method for recycling the printing and dyeing wastewater reclaimed water according to claim 1, wherein the fine iron oxide biomass composite carbon material can be periodically discharged through an MBR tank after the adsorption capacity is saturated, and the discharged fine iron oxide biomass composite carbon material is subjected to filter pressing and dehydration through a filter press and then is thermally regenerated.
8. The method for recycling the printing and dyeing wastewater reclaimed water according to claim 7, wherein the adsorption capacity of the regenerated fine iron oxide biomass composite carbon material can be recovered to more than 95% of the original level.
9. The method for recycling the printing and dyeing wastewater reclaimed water as claimed in claim 1, wherein the fine iron oxide biomass composite carbon material can adsorb and remove heavy metal antimony in the wastewater simultaneously.
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| CN202110893936.1A CN113582452A (en) | 2021-08-04 | 2021-08-04 | Method for recycling reclaimed water in printing and dyeing wastewater |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930596A (en) * | 2017-11-29 | 2018-04-20 | 烟台大学 | A kind of modified magnetic biomass carbon sorbing material and preparation method thereof |
| CN108723074A (en) * | 2018-05-04 | 2018-11-02 | 浙江工业大学 | A method of stabilizing restoration of soil polluted by heavy metal using sludge base charcoal ash |
| CN110171876A (en) * | 2019-05-16 | 2019-08-27 | 浙江科技学院 | A kind of N doping sludge carbon carries the preparation method and applications of nano ferriferrous oxide |
| CN111203180A (en) * | 2020-01-15 | 2020-05-29 | 浙江大学 | Magnetic biochar composite adsorbent and preparation method and application thereof |
| CN113072054A (en) * | 2021-05-06 | 2021-07-06 | 肇庆学院 | Method for preparing biomass charcoal by water-fire linkage oxygen aeration |
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- 2021-08-04 CN CN202110893936.1A patent/CN113582452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930596A (en) * | 2017-11-29 | 2018-04-20 | 烟台大学 | A kind of modified magnetic biomass carbon sorbing material and preparation method thereof |
| CN108723074A (en) * | 2018-05-04 | 2018-11-02 | 浙江工业大学 | A method of stabilizing restoration of soil polluted by heavy metal using sludge base charcoal ash |
| CN110171876A (en) * | 2019-05-16 | 2019-08-27 | 浙江科技学院 | A kind of N doping sludge carbon carries the preparation method and applications of nano ferriferrous oxide |
| CN111203180A (en) * | 2020-01-15 | 2020-05-29 | 浙江大学 | Magnetic biochar composite adsorbent and preparation method and application thereof |
| CN113072054A (en) * | 2021-05-06 | 2021-07-06 | 肇庆学院 | Method for preparing biomass charcoal by water-fire linkage oxygen aeration |
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Application publication date: 20211102 |