CN111635007A - Preparation method and application of water treatment magnetic carbon filler - Google Patents
Preparation method and application of water treatment magnetic carbon filler Download PDFInfo
- Publication number
- CN111635007A CN111635007A CN202010502491.5A CN202010502491A CN111635007A CN 111635007 A CN111635007 A CN 111635007A CN 202010502491 A CN202010502491 A CN 202010502491A CN 111635007 A CN111635007 A CN 111635007A
- Authority
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- China
- Prior art keywords
- magnetic carbon
- water treatment
- steps
- carbon filler
- sintering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000000945 filler Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000010865 sewage Substances 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 238000000746 purification Methods 0.000 claims abstract description 9
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims abstract description 5
- 239000013078 crystal Substances 0.000 claims abstract description 5
- 239000008187 granular material Substances 0.000 claims abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000002816 nickel compounds Chemical class 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000007858 starting material Substances 0.000 claims abstract description 5
- 150000003752 zinc compounds Chemical class 0.000 claims abstract description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 244000005700 microbiome Species 0.000 abstract description 5
- 230000005389 magnetism Effects 0.000 abstract description 4
- 230000000813 microbial effect Effects 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- 241000108664 Nitrobacteria Species 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a preparation method of a water treatment magnetic carbon filler, which comprises (1) selecting Fe with good crystal form and narrow particle size distribution2O3·H2A starting material of O; (2) in Fe2O3·H2Adding 0.2-0.5% of nickel compound and 0.15-0.25% of zinc compound in the O raw material, controlling the carbon content at 2.5-4%, and granulating and forming by using an adhesive; (3) firstly, the granulated and formed granular material is soaked in an anti-sintering agent with the water content of 85-88 percent for 30-45min, and then sintering is carried out to prepare the gamma-Fe2O3The holes and the needle shapes are not damaged in the sintering process; (4) for prepared gamma-Fe2O3The steam blowing pore treatment is carried out to ensure that the porous material has good porosity. The finished product prepared by the invention has strong magnetism and good porosity, the magnetic carbon is used as the biological filter bed filler, microorganisms are easy to attach and grow, the microbial community attached to the periphery of each filler can be regarded as a nitrification-denitrification unit, the number of the magnetic carbon fillers of the biological filter bed is hundreds of millions, and the magnetic carbon fillers can be used for biological filter bedsIs widely used for the deep purification treatment of sewage.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a preparation method and application of a water treatment filler.
Background
China is a large population country, along with the continuous promotion of the urbanization process, the population is continuously transferred to cities, and the urban sewage treatment plants are subjected to capacity expansion and transformation. The occupied amount of Chinese water resources is low, and the recycling of urban sewage treatment becomes an effective path for solving the shortage of water resources. Therefore, the advanced purification treatment and the recycling of the sewage are increasingly prominent besides the treatment and the capacity expansion of the urban sewage plant. The effluent index is improved from GB18918-2002 first-grade B index to first-grade A index, and even areas with small environmental capacity require the treated effluent to reach the surface V type or the quasi IV type. The indexes of total nitrogen and ammonia nitrogen of treated effluent are harsh. The two indexes are removed in two directions, namely a physical filtration method, namely a reverse osmosis membrane method, and a biological method. The first is that the film product needs to be replaced periodically and used less because of the excessive investment. Biological processes are widely accepted and used as a traditional low operating cost for wastewater treatment. However, as the concentration of the inlet water (the improved inlet water is generally GB18918-2002 grade B standard) is very low, the carrier with strong adsorption capacity and easy attachment of microorganisms is needed to effectively retain and be biodegraded.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provide a preparation method of a water treatment magnetic carbon filler, wherein a finished product has extremely strong magnetism and good porosity, the magnetic carbon is used as a biological filter bed filler, microorganisms are easy to attach and grow, a microbial community attached to the periphery of each filler can be regarded as a nitrification-denitrification unit, and the number of the magnetic carbon fillers of the biological filter bed is hundreds of millions, so that the water treatment magnetic carbon filler can be widely used for deep purification treatment of sewage.
The technical scheme is as follows: in order to solve the technical problems, the preparation method of the water treatment magnetic carbon filler comprises the following steps,
(1) selecting Fe with good crystal form and narrow particle size distribution2O3·H2A starting material of O;
(2) in Fe2O3·H2Adding 0.2-0.5% of nickel compound and 0.15-0.25% of zinc compound in the O raw material, controlling the carbon content at 2.5-4%, and granulating and forming by using an adhesive;
(3) firstly, the granulated and formed granular material is soaked in an anti-sintering agent with the water content of 85-88 percent for 30-45min, and then sintering is carried out to prepare the gamma-Fe2O3The holes and the needle shapes are not damaged in the sintering process;
(4) for prepared gamma-Fe2O3The steam blowing pore treatment is carried out to ensure that the porous material has good porosity.
Preferably, in the step (2), the adhesive is a polymer adhesive.
Preferably, in the step (3), the sintering inhibitor is one or two of N, N-dimethylformamide and xylene.
Preferably, in the step (3), the anti-sintering agent is dimethylformamide.
Preferably, steps (1) to (4) are carried out under normal pressure.
Other types of conventional adjuvants may also be used for the binder and anti-sintering agent.
An application of a magnetic carbon filler for water treatment in deep purification treatment of sewage.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the preparation steps are simple, the prepared product has good magnetism and porosity, the nitrobacteria and the denitrifying bacteria can realize symbiosis in the same bed, the filtering and capturing capacity for low-concentration ammonia nitrogen and total nitrogen is strong, the microbial biomass per unit volume of the biological filter bed using magnetic carbon is more than 2 times of that of the traditional advanced treatment filter bed, the occupied area is saved by more than 50%, the biological filter bed and the filter bed used as microorganisms can effectively intercept pollutants and carry out in-situ degradation, and the biological filter bed can be widely used for sewage advanced purification treatment.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
The invention relates to a preparation method of a water treatment magnetic carbon filler, which comprises the following steps,
(1) selecting Fe with good crystal form and narrow particle size distribution2O3·H2A starting material of O;
(2) in Fe2O3·H2Adding a nickel compound accounting for 0.3 percent of the total mass and a zinc compound accounting for 0.18 percent of the total mass into the O raw material, controlling the carbon content to be 3.0 percent, and granulating and molding by using a bonding agent;
(3) firstly, the granulated and formed granular material is soaked in an anti-sintering agent with the water content of 86 percent for 35min, and then the gamma-Fe is prepared by sintering2O3The holes and the needle shapes are not damaged in the sintering process;
(4) for prepared gamma-Fe2O3The steam blowing pore treatment is carried out to ensure that the porous material has good porosity.
In the step (2), the adhesive is a high-molecular adhesive.
In the step (3), the anti-sintering agent is N, N-dimethylformamide.
The steps (1) to (4) are all carried out under normal pressure.
An application of a magnetic carbon filler for water treatment in deep purification treatment of sewage.
Example 2
A preparation method of a water treatment magnetic carbon filler comprises the following steps,
(1) selecting Fe with good crystal form and narrow particle size distribution2O3·H2A starting material of O;
(2) in Fe2O3·H2Adding a nickel compound accounting for 0.4 percent of the total mass and a zinc compound accounting for 0.22 percent of the total mass into the O raw material, controlling the carbon content to be 3.5 percent, and granulating and molding by using a bonding agent;
(3) firstly, the granulated and formed granular material is soaked in an anti-sintering agent with the water content of 87 percent for 40min, and then the gamma-Fe is prepared by sintering2O3The holes and the needle shapes are not damaged in the sintering process;
(4) for prepared gamma-Fe2O3The steam blowing pore treatment is carried out to ensure that the porous material has good porosity.
In the step (2), the adhesive is a high-molecular adhesive.
In the step (3), the anti-sintering agent is dimethylformamide.
The steps (1) to (4) are all carried out under normal pressure.
An application of a magnetic carbon filler for water treatment in deep purification treatment of sewage.
The preparation steps are simple, the prepared product has good magnetism and porosity, the nitrobacteria and the denitrifying bacteria can realize symbiosis in the same bed, the filtering and capturing capacity for low-concentration ammonia nitrogen and total nitrogen is strong, the microbial biomass per unit volume of the biological filter bed using magnetic carbon is more than 2 times of that of the traditional advanced treatment filter bed, the occupied area is saved by more than 50%, the biological filter bed and the filter bed used as microorganisms can effectively intercept pollutants and carry out in-situ degradation, and the biological filter bed can be widely used for sewage advanced purification treatment.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (6)
1. A preparation method of a water treatment magnetic carbon filler is characterized by comprising the following steps: which comprises the following steps of,
(1) selecting Fe with good crystal form and narrow particle size distribution2O3·H2A starting material of O;
(2) in Fe2O3·H2Adding 0.2-0.5% of nickel compound and 0.15-0.25% of zinc compound in the O raw material, controlling the carbon content at 2.5-4%, and granulating and forming by using an adhesive;
(3) firstly, the granulated and formed granular material is soaked in an anti-sintering agent with the water content of 85-88 percent for 30-45min, and then sintering is carried out to prepare the gamma-Fe2O3The holes and the needle shapes are not damaged in the sintering process;
(4) for prepared gamma-Fe2O3The steam blowing pore treatment is carried out to ensure that the porous material has good porosity.
2. The method for preparing the water treatment magnetic carbon filler according to claim 1, wherein the method comprises the following steps: in the step (2), the adhesive is a high-molecular adhesive.
3. The method for preparing the water treatment magnetic carbon filler according to claim 1, wherein the method comprises the following steps: in the step (3), the anti-sintering agent is one or two of N, N-dimethylformamide and dimethylbenzene.
4. The method for preparing the water treatment magnetic carbon filler according to claim 1, wherein the method comprises the following steps: in the step (3), the anti-sintering agent is dimethylformamide.
5. The method for preparing the water treatment magnetic carbon filler according to claim 1, wherein the method comprises the following steps: the steps (1) to (4) are all carried out under normal pressure.
6. The use of the magnetic carbon filler for water treatment prepared according to claim 1 in the deep purification treatment of sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010502491.5A CN111635007A (en) | 2020-06-05 | 2020-06-05 | Preparation method and application of water treatment magnetic carbon filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010502491.5A CN111635007A (en) | 2020-06-05 | 2020-06-05 | Preparation method and application of water treatment magnetic carbon filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111635007A true CN111635007A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010502491.5A Pending CN111635007A (en) | 2020-06-05 | 2020-06-05 | Preparation method and application of water treatment magnetic carbon filler |
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Application publication date: 20200908 |