CN110316890A - A method of organic matter in processing grass carp breeding wastewater - Google Patents
A method of organic matter in processing grass carp breeding wastewater Download PDFInfo
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- CN110316890A CN110316890A CN201910718287.4A CN201910718287A CN110316890A CN 110316890 A CN110316890 A CN 110316890A CN 201910718287 A CN201910718287 A CN 201910718287A CN 110316890 A CN110316890 A CN 110316890A
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- 238000000034 method Methods 0.000 title claims abstract description 39
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- 238000009395 breeding Methods 0.000 title claims abstract description 37
- 230000001488 breeding effect Effects 0.000 title claims abstract description 37
- 238000012545 processing Methods 0.000 title claims abstract description 24
- 239000005416 organic matter Substances 0.000 title claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 34
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000005286 illumination Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 23
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000011259 mixed solution Substances 0.000 claims description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- 239000011812 mixed powder Substances 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 238000001354 calcination Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 238000013019 agitation Methods 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims description 2
- 229910001868 water Inorganic materials 0.000 abstract description 16
- 238000009360 aquaculture Methods 0.000 abstract description 12
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000006227 byproduct Substances 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 7
- 230000001699 photocatalysis Effects 0.000 description 6
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 5
- IQFVPQOLBLOTPF-HKXUKFGYSA-L congo red Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(/N=N/C3=CC=C(C=C3)C3=CC=C(C=C3)/N=N/C3=C(C4=CC=CC=C4C(=C3)S([O-])(=O)=O)N)=CC(S([O-])(=O)=O)=C21 IQFVPQOLBLOTPF-HKXUKFGYSA-L 0.000 description 5
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- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
-
- 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
-
- 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
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of methods of organic matter in processing grass carp breeding wastewater, belong to technical field of waste water processing, it is via following steps: (1) stirring and adsorbing: composite catalyst is put into grass carp breeding wastewater, it is stirred absorption, mixed liquor is made, the injected volume of composite catalyst is the 0.05~0.5% of grass carp breeding wastewater quality；(2) illumination reaction: mixed liquor made from step (1) is placed in 60~150min of reaction under sunlight, completes the processing of grass carp breeding wastewater；Organic pollutant is sufficiently adsorbed on composite catalyst by the method using the dark absorption of first stirring, then enhancing meets the oxidability of catalyst under illumination effect, so that it is environmentally protective CO that organic pollutant, which is oxidized to complete oxidation, as much as possible2、H2O and mine acid, realize the processing of aquiculture waste water, and entire treatment process is completely environmentally protective, and no harmful side product generates.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to a kind of side for handling organic matter in grass carp breeding wastewater
Method.
Background technique
With advances in technology and expanding economy, the culture fishery development in China rapidly, enrich the diet of people.
In aquaculture process, due to the dispensings such as bait excess, the excrement discharge of aquatic livestock, breeds poisonous and harmful substances in addition, from
And keep various content of organics in water body exceeded, cause dissolved oxygen in water body to reduce, seriously constrains the yield and product of aquaculture
Matter.In addition increasingly serious industrial pollution causes surface water and soil pollution, and the surface water of pollution can penetrate into breeding water body, soil
Pollutant in earth also can enter breeding water body with rainwater, increase the threat to aquaculture, especially annual rainy season, very
It is easy trade effluent being mixed into Cultivated water.This just needs periodically to be Cultivated water replacement water, at aquiculture sewerage
Reason, serves as other water sources, again returns to culture zone or reaches discharge standard.
In recent years, multiphase photocatalysis degradation technique is to be mapped on semiconductor to generate active matter using the illumination of appropriate wavelength
Kind, so that the organic compound of oxidation dissolution Yu Shuizhong, is a kind of high-level oxidation technology.There are many multiphase photocatalysis material, research
It is very active, TiO2The multiphase photocatalysis of mediation has potential advantage, it can cause many organic pollutant complete oxidations to be
CO2、H2O and mine acid.Wherein due to titanium dioxide (TiO2) intrinsic property, such as high photoreactivity, nontoxic, inexpensive, photochemistry
Stable, outstanding oxidisability and permanent charge carry etc., be current most study and most promising multiphase photocatalysis material it
One, but TiO2Forbidden bandwidth is relatively narrow, can only by ultraviolet photoactivation, and ultraviolet light only account for solar spectrum 3~5% this because
Element limits its use under sunlight.Therefore with TiO2Based on, a kind of new catalyst is researched and developed, is improved to visible light wave
Long absorption region and excitation fluorescence intensity, while the adsorption capacity to organic matter is improved, at industrial wastewater and sanitary sewage
Reason is of great significance.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of methods of organic matter in processing grass carp breeding wastewater, green
The illumination effect that colour circle is protected is lower to simplify processing routine, and improves TiO2Multiphase photocatalysis degradation capability.
In order to solve the above technical problems, the technical scheme is that designing organic in a kind of processing grass carp breeding wastewater
The method of object, it is characterised in that: the following steps are included:
(1) stirring and adsorbing: composite catalyst being put into grass carp breeding wastewater, absorption is stirred, and mixed liquor is made, compound to urge
The injected volume of agent is the 0.05~0.5% of grass carp breeding wastewater quality；
(2) illumination reaction: mixed liquor made from step (1) is placed in 60~150min of reaction under sunlight, completes grass carp cultivation
The processing of waste water；
Composite catalyst used is made via following steps:
(a) it grinds: graphite powder and MgO powder being subjected to mixed grinding according to mass ratio for 8~20:100, mixed-powder is made；
(b) sol-gal process is compound: butyl titanate, deionized water, the salt that concentration is 2mol/L are sequentially added in dehydrated alcohol
Mixed-powder made from acid solution and step (1) obtains mixed solution, first uses magnetic agitation mixed solution, then make to mix with ultrasound
Solution is uniformly dispersed, and after solution gel to be mixed, grinds after drying at room temperature；
The mass ratio of dehydrated alcohol and butyl titanate is 4~3:1, and the mass ratio of deionized water and butyl titanate is 1:1~2, dense
The hydrochloric acid solution and butyl titanate mass ratio that degree is 2mol/L are 0.1~0.2:1, mixed-powder and metatitanic acid made from step (1)
The mass ratio of butyl ester is 0.005~0.05:1；
(c) it calcines: the powder that step (2) are ground being calcined at a temperature of 400~500 DEG C, obtains composite catalyst.
Further, in step (a), the mass ratio of graphite powder and MgO powder is 14:100.
Further, in step (b), the mass ratio of dehydrated alcohol and butyl titanate is 3.5:1, deionized water and metatitanic acid fourth
The mass ratio of ester is 1:1.5, and the hydrochloric acid solution and butyl titanate mass ratio that concentration is 2mol/L are 0.15:1, and step (1) is made
Mixed-powder and butyl titanate mass ratio be 0.03:1.
Further, in step (c), calcination temperature is 450 DEG C.
Further, in step (1), the injected volume of composite catalyst is the 0.3% of grass carp breeding wastewater quality.
Further, in step (1), being stirred the time is 40~80min.
Further, in step (1), being stirred the time is 60min.
Further, in step (2), mixed liquor, which is placed under sunlight, reacts 100min.
Further, calcination time is 2~4h in step (c).
Further, calcination time is 3h in step (c).
Compared with prior art, the beneficial effects of the present invention are:
1, organic pollutant is sufficiently adsorbed on composite catalyst by the present invention using the dark absorption of first stirring, then is acted in illumination
It is lower to enhance the oxidability for meeting catalyst, so that it is environmentally protective that organic pollutant, which is oxidized to complete oxidation, as much as possible
CO2、H2O and mine acid, realize the processing of aquiculture waste water, and entire treatment process is completely environmentally protective, and no harmful side product produces
It is raw.
2, in composite catalyst TiO2In-GR/MgO, graphite have numerous conjugated double bonds, while still electron acceptor and turn
Body is moved, TiO can be widened2Light abstraction width, inhibit the compound again of light induced electron and hole, also raising TiO2Adsorption capacity,
And MgO has excellent adsorption capacity, can be improved catalyst to the absorption property of persistent organic pollutants, thus in graphite
TiO is effectively reduced under the synergistic effect of MgO2The recombination fraction of the electron-hole of middle generation, improves absorption property, thus
Improve its whole photocatalytic activity.
3, during preparation, metatitanic acid is hydrolyzed in ethanol medium using butyl titanate, in calcination process, metatitanic acid point
Solution is TiO2Form, can realize and be uniformly mixed between each raw material on a molecular scale in sol-gel recombination process,
So that can more come into full contact between raw material, easier progress is reacted.
4, the present invention prepares composite catalyst using sol-gal process, on the one hand needs lower synthesis temperature, reduces energy
Source consumption；On the other hand being diffused in nanometer range for each component in system is enabled to, disperses more uniform, improves compound urges
The entirety ability of agent.
5, the present invention uses the stronger composite catalyst of oxidation processes ability, completes aquiculture waste water under illumination effect
Processing, simplify technique and no coupling product and generate, convenient for promoting and applying in the art.
Specific embodiment
Present invention is further described in detail With reference to embodiment.
Embodiment one
Composite catalyst used in the present embodiment is made via following steps:
(a) it grinds: 2g graphite powder is mixed to 25gMgO powder and ground in mortar 60min, mixed-powder is made；
(b) sol-gal process is compound: 4g butyl titanate, 2g deionized water, 0.4g concentration are sequentially added in 20mL dehydrated alcohol
Mixed-powder made from hydrochloric acid solution and 0.02g step (1) for 2mol/L obtains mixed solution, temperature controlled water baths 20
DEG C, magnetic agitation mixed solution is first used, then so that mixed solution is uniformly dispersed with ultrasound, after solution gel to be mixed, at room temperature
It is ground after drying；
(c) it calcines: the powder that step (2) are ground being placed in Muffle furnace in 400 DEG C of calcining 2h, TiO is obtained2- GR/MgO is compound
Catalyst.
Through detecting, composite catalyst can be 1.25 to the mean light absorbency of sunlight under response wave length.
The method for handling organic matter in grass carp breeding wastewater is as follows:
(1) composite photo-catalyst of 100mL aquiculture waste water and 0.05g, first dark-state stirring stirring and adsorbing: are added in beaker
40min is adsorbed, mixed liquor is made；
(2) illumination reaction: mixed liquor made from step (1) being placed under sunlight and reacts 60min, completes grass carp breeding wastewater
Processing.
Measuring Congo red removal rate is 65.5%, and aromatic hydrocarbons removal rate is 71%, and formaldehyde removal rate is 83.2%.
Embodiment two
Composite catalyst used in the present embodiment is made via following steps:
(a) it grinds: 5g graphite powder is mixed to 25gMgO powder and ground in mortar 60min, mixed-powder is made；
(b) sol-gal process is compound: 4g butyl titanate, 2g deionized water, 0.4g concentration are sequentially added in 20mL dehydrated alcohol
Mixed-powder made from hydrochloric acid solution and 0.2g step (1) for 2mol/L obtains mixed solution, and temperature controlled water baths are 30 DEG C,
Magnetic agitation mixed solution is first used, then so that mixed solution is uniformly dispersed with ultrasound, after solution gel to be mixed, is dried at room temperature
After grind；
(c) it calcines: the powder that step (2) are ground being placed in Muffle furnace in 450 DEG C of calcining 3h, TiO is obtained2- GR/MgO is compound
Catalyst.
Through detecting, composite catalyst can be 1.49 to the mean light absorbency of sunlight under response wave length.
The method for handling organic matter in grass carp breeding wastewater is as follows:
(1) composite photo-catalyst of 100mL aquiculture waste water and 0.05g, first dark-state stirring stirring and adsorbing: are added in beaker
40min is adsorbed, mixed liquor is made；
(2) illumination reaction: mixed liquor made from step (1) being placed under sunlight and reacts 60min, completes grass carp breeding wastewater
Processing.
Measuring Congo red removal rate is 75.5%, and aromatic hydrocarbons removal rate is 84%, and formaldehyde removal rate is 87%.
Embodiment three
Composite catalyst used in the present embodiment is made via following steps:
(a) it grinds: 5g graphite powder is mixed to 25gMgO powder and ground in mortar 60min, mixed-powder is made；
(b) sol-gal process is compound: 4g butyl titanate, 2g deionized water, 0.4g concentration are sequentially added in 20mL dehydrated alcohol
Mixed-powder made from hydrochloric acid solution and 0.2g step (1) for 2mol/L obtains mixed solution, and temperature controlled water baths are 30 DEG C,
Magnetic agitation mixed solution is first used, then so that mixed solution is uniformly dispersed with ultrasound, after solution gel to be mixed, is dried at room temperature
After grind；
(c) it calcines: the powder that step (2) are ground being placed in Muffle furnace in 450 DEG C of calcining 3h, TiO is obtained2- GR/MgO is compound
Catalyst.
Through detecting, composite catalyst can be 1.52 to the mean light absorbency of sunlight under response wave length.
The method for handling organic matter in grass carp breeding wastewater is as follows:
(1) composite photo-catalyst of 100mL aquiculture waste water and 0.2g, first dark-state stirring stirring and adsorbing: are added in beaker
40min is adsorbed, mixed liquor is made；
(2) illumination reaction: mixed liquor made from step (1) being placed under sunlight and reacts 100min, completes grass carp breeding wastewater
Processing.
Measuring Congo red removal rate is 93.9%, and aromatic hydrocarbons removal rate is 92.8%, and formaldehyde removal rate is 96%.
Example IV
Composite catalyst used in the present embodiment is made via following steps:
(a) it grinds: 5g graphite powder is mixed to 25gMgO powder and ground in mortar 60min, mixed-powder is made；
(b) sol-gal process is compound: 4g butyl titanate, 2g deionized water, 0.4g concentration are sequentially added in 20mL dehydrated alcohol
Mixed-powder made from hydrochloric acid solution and 0.2g step (1) for 2mol/L obtains mixed solution, and temperature controlled water baths are 30 DEG C,
Magnetic agitation mixed solution is first used, then so that mixed solution is uniformly dispersed with ultrasound, after solution gel to be mixed, is dried at room temperature
After grind；
(c) it calcines: the powder that step (2) are ground being placed in Muffle furnace in 450 DEG C of calcining 3h, TiO is obtained2- GR/MgO is compound
Catalyst.
Through detecting, composite catalyst can be 1.51 to the mean light absorbency of sunlight under response wave length.
The method for handling organic matter in grass carp breeding wastewater is as follows:
(1) composite photo-catalyst of 100mL aquiculture waste water and 0.5g, first dark-state stirring stirring and adsorbing: are added in beaker
80min is adsorbed, mixed liquor is made；
(2) illumination reaction: mixed liquor made from step (1) being placed under sunlight and reacts 120min, completes grass carp breeding wastewater
Processing.
Measuring Congo red removal rate is 98.2%, and aromatic hydrocarbons removal rate is 99%, and formaldehyde removal rate is 100%.
Embodiment five
Composite catalyst used in the present embodiment is made via following steps:
(a) it grinds: 5g graphite powder is mixed to 25gMgO powder and ground in mortar 60min, mixed-powder is made；
(b) sol-gal process is compound: 4g butyl titanate, 4g deionized water, 0.8g concentration are sequentially added in 20mL dehydrated alcohol
Mixed-powder made from hydrochloric acid solution and 0.2g step (1) for 2mol/L obtains mixed solution, and temperature controlled water baths are 40 DEG C,
Magnetic agitation mixed solution is first used, then so that mixed solution is uniformly dispersed with ultrasound, after solution gel to be mixed, is dried at room temperature
After grind；
(c) it calcines: the powder that step (2) are ground being placed in Muffle furnace in 500 DEG C of calcining 3h, TiO is obtained2- GR/MgO is compound
Catalyst.
Through detecting, composite catalyst can be 1.52 to the mean light absorbency of sunlight under response wave length.
The method for handling organic matter in grass carp breeding wastewater is as follows:
(1) composite photo-catalyst of 100mL aquiculture waste water and 0.2g, first dark-state stirring stirring and adsorbing: are added in beaker
60min is adsorbed, mixed liquor is made；
(2) illumination reaction: mixed liquor made from step (1) being placed under sunlight and reacts 100min, completes grass carp breeding wastewater
Processing.
Measuring Congo red removal rate is 95.9%, and aromatic hydrocarbons removal rate is 97.8%, and formaldehyde removal rate is 99%.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (10)
1. a kind of method of organic matter in processing grass carp breeding wastewater, it is characterised in that: the following steps are included:
(1) stirring and adsorbing: composite catalyst being put into grass carp breeding wastewater, absorption is stirred, and mixed liquor is made, compound to urge
The injected volume of agent is the 0.05~0.5% of grass carp breeding wastewater quality；
(2) illumination reaction: mixed liquor made from step (1) is placed in 60~150min of reaction under sunlight, completes grass carp cultivation
The processing of waste water；
Composite catalyst used is made via following steps:
(a) it grinds: graphite powder and MgO powder being subjected to mixed grinding according to mass ratio for 8~20:100, mixed-powder is made；
(b) sol-gal process is compound: butyl titanate, deionized water, the salt that concentration is 2mol/L are sequentially added in dehydrated alcohol
Mixed-powder made from acid solution and step (1) obtains mixed solution, first uses magnetic agitation mixed solution, then make to mix with ultrasound
Solution is uniformly dispersed, and after solution gel to be mixed, grinds after drying at room temperature；
The mass ratio of dehydrated alcohol and butyl titanate is 4~3:1, and the mass ratio of deionized water and butyl titanate is 1:1~2, dense
The hydrochloric acid solution and butyl titanate mass ratio that degree is 2mol/L are 0.1~0.2:1, mixed-powder and metatitanic acid made from step (1)
The mass ratio of butyl ester is 0.005~0.05:1；
(c) it calcines: the powder that step (2) are ground being calcined at a temperature of 400~500 DEG C, obtains composite catalyst.
2. the method for organic matter in processing grass carp breeding wastewater described in accordance with the claim 1, it is characterised in that: in step (a),
The mass ratio of graphite powder and MgO powder is 14:100.
3. the method for organic matter in processing grass carp breeding wastewater described in accordance with the claim 1, it is characterised in that: in step (b),
The mass ratio of dehydrated alcohol and butyl titanate is 3.5:1, and the mass ratio of deionized water and butyl titanate is 1:1.5, and concentration is
The hydrochloric acid solution and butyl titanate mass ratio of 2mol/L is 0.15:1, the matter of mixed-powder and butyl titanate made from step (1)
Amount is than being 0.03:1.
4. the method for organic matter in processing grass carp breeding wastewater described in accordance with the claim 1, it is characterised in that: in step (c),
Calcination temperature is 450 DEG C.
5. according to the method for organic matter in any processing grass carp breeding wastewater of Claims 1-4, it is characterised in that: step
Suddenly in (1), the injected volume of composite catalyst is the 0.3% of grass carp breeding wastewater quality.
6. handling the method for organic matter in grass carp breeding wastewater according to claim 5, it is characterised in that: in step (1),
Being stirred the time is 40~80min.
7. handling the method for organic matter in grass carp breeding wastewater according to claim 6, it is characterised in that: in step (1),
Being stirred the time is 60min.
8. handling the method for organic matter in grass carp breeding wastewater according to claim 5, it is characterised in that: in step (2),
Mixed liquor, which is placed under sunlight, reacts 100min.
9. handling the method for organic matter in grass carp breeding wastewater according to claim 5, it is characterised in that: in step (c)
Calcination time is 2~4h.
10. handling the method for organic matter in grass carp breeding wastewater according to claim 9, it is characterised in that: in step (c)
Calcination time is 3h.
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Application publication date: 20191011 |