CN106563474A - Powdery catalyst for purifying industrial sewage and effectively reducing COD and preparation method - Google Patents
Powdery catalyst for purifying industrial sewage and effectively reducing COD and preparation method Download PDFInfo
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- CN106563474A CN106563474A CN201610980686.4A CN201610980686A CN106563474A CN 106563474 A CN106563474 A CN 106563474A CN 201610980686 A CN201610980686 A CN 201610980686A CN 106563474 A CN106563474 A CN 106563474A
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- industrial sewage
- cod
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- active carbon
- sewage purification
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- 239000010865 sewage Substances 0.000 title claims abstract description 26
- 239000003054 catalyst Substances 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000011265 semifinished product Substances 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 238000001354 calcination Methods 0.000 claims abstract description 5
- 238000007598 dipping method Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 21
- 238000000746 purification Methods 0.000 claims description 13
- 239000003610 charcoal Substances 0.000 claims description 11
- 239000002250 absorbent Substances 0.000 claims description 10
- 230000002745 absorbent Effects 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 9
- 229910052749 magnesium Inorganic materials 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000010298 pulverizing process Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000003245 coal Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000047 product Substances 0.000 abstract description 7
- 239000011230 binding agent Substances 0.000 abstract description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 5
- 229910019142 PO4 Inorganic materials 0.000 abstract description 4
- 239000010452 phosphate Substances 0.000 abstract description 4
- -1 phosphate anions Chemical class 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000011149 active material Substances 0.000 abstract 2
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 9
- 239000011575 calcium Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011777 magnesium Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 239000003403 water pollutant Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 229910014813 CaC2 Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910020101 MgC2 Inorganic materials 0.000 description 1
- DABBSNIBDOUDNE-UHFFFAOYSA-N ON=O.ON=O.O Chemical compound ON=O.ON=O.O DABBSNIBDOUDNE-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 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
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/138—Halogens; Compounds thereof with alkaline earth metals, magnesium, beryllium, zinc, cadmium or mercury
-
- 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
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a powdery catalyst for purifying industrial sewage and effectively reducing COD. An active carbon carrier is loaded with 5%-15% of Ca, 5%-15% of Mg, 5%-15% of Fe and 10%-50% of Cl. The optimized active carbon carrier is selected, active materials are prepared into a mixed solution according to a certain proportion, the active carbon carrier is effectively loaded with the active materials in a dipping calcination manner, then, semi-finished products are ground into powder, and binder can also be added so that the ground semi-finished products can be formed and pressed into other products in a rectangular shape or a cylindrical shape or other shapes. Due to advanced holes of active carbon, the active carbon has a good adsorption effect, and on the basis, the active carbon is loaded with corresponding active components for contaminants in water, for ammonia nitrogen and phosphate anions in the sewage and COD reducing, treating is quicker and more convenient, and the cost is reduced.
Description
Technical field
The present invention relates to field of catalyst preparation, specially a kind of industrial sewage purification and effectively reduction COD are urged with powdery
Agent.
Background technology
Water is the important substance basis of human survival and social development, is a kind of limited, irreplaceable precious resources,
It is also the important guarantee for realizing the sustainable development of socio-economy.China is the country of a water resources shortage per capita, is listed in generation
One of upper 13 Ge Pin lands that abounds in rivers and lakes of boundary.With China's industrial expansion, the discharge capacity of industrial wastewater increasingly increases, polluted-water, water
After body is contaminated, can not only make its water quality not meet the standard of drinking water, fishery water, the chemistry in subsoil water can also had
Evil material and hardness increase, and affect the utilization of subsoil water, and water body to be once contaminated, and want to return to original at short notice
The state come is very difficult.Water pollution becomes one of main Environmental Problems that China faces.Therefore, China's sewage is lifted as early as possible
Treatment industry technology and industrialization level, the effectively situation of containment water resource pollution, are that alleviation shortage of water resources is effective
Method.
Existing sewage disposal typically has three kinds of modes：
1st, physical treatment process：Including grid retention method, the sedimentation method, Bubble-floating Method and Filtration etc..
2nd, method of chemical treatment：Mainly for the treatment of industrial wastewater, including neutralization, coagulation, electrolysis, oxidoreduction, stripping, extraction
Take, adsorb and ion exchange etc..
3rd, biological treatment：Mainly there are aerobic method and the big class of anaerobic process two.
Contain a certain amount of hardly degraded organic substance in simple biological oxidation process water outlet, COD value is higher, it is impossible to be fully achieved
Discharge standard.Though absorption method can preferably remove COD, the regeneration and secondary pollution that there are problems that adsorbent.Catalytic oxidation
Though can reduce being difficult to biodegradable Organic substance, there are problems that operating cost in the commercial Application of reality.
Because traditional Physical application is limited, process simple, the environment of high request is not adapted to.Chemical method utilizationization
Learn various in the effect separation and recovery sewage of reaction（Float, colloid and solute etc.）Pollutant.Bioanalysises are used for processing
The sludge produced in high concentration organic sewage and sewage disposal process, is mainly used in municipal sewage and Organic industrial wastewater.
The content of the invention
The purpose of the present invention is to develop the ammonia nitrogen and phosphate anion that can effectively remove in trade effluent, while reducing COD
Grained catalyst so as to reach the discharge standard of national regulation.Activated carbon has good suction because the flourishing hole of itself
Attached effect, is responsible on this basis that the active component of water pollutant can be directed in addition, makes the faster convenience of process, and cost
It is relatively low.
The present invention adopts the following technical scheme that realization：
A kind of industrial sewage purification and effectively reduce COD grained catalysts, be loaded with absorbent charcoal carrier 5 ~ 15% Ca, 5 ~
15% Mg, 5 ~ 15% Fe, 10 ~ 50% Cl.
The preparation process of above-mentioned catalyst is as follows：
（1）Mixed solution is configured：The impregnating agent for weighing the above-mentioned active component of predetermined weight is added to the hydrochloric acid and steaming for calculating
In the mixed solvent of distilled water, heat and be stirred continuously, impregnating agent is fully dissolved, solution temperature to be mixed reaches 30-50 DEG C, stops
Only heat；
（2）Dipping：Using equivalent impregnation method, the above-mentioned mixed solution for having configured is added to the leaching for filling ature of coal crushing activated carbon
In stain machine, rapid stirring, until solution is fully absorbed；
（3）Activation：Mixed material is added in the air draught of heat carries out calcining drying, when gas flow temperature reaches 100 DEG C
Start timing, continue to react 1～1.5h, temperature control is between 100～130 DEG C.
（4）Pulverizing：With certain type flour mill by semi-finished product pulverizing to 300 mesh or more.
（5）Molding：By the binding agent for adding specific preparation, the semi-finished product of milled and binding agent are pressed into 20:1 ratio is mixed
Stirring is closed, with rectangle or plodder molding procedure is carried out.
According to chemical principle：The content of the COD in sewage itself can be reduced by the absorption of the physics hole of activated carbon.
Ammonia nitrogen and phosphate anion in sewage can be generated by the exchange reaction with calcium, magnesium, ferrum plasma and sink to the bottom removal.
2PO4 3- + 3Ca2+ ==Ca3（PO4）2↓
Ammonia nitrogen in sewage（NH3-N）With free ammonia（NH3）Or ammonium salt（NH4 +）In the form of in water, both ratio of componentss
Example depends on the pH value and water temperature of water.When PH is higher, the ratio of free ammonia is higher.Conversely, then the ratio of ammonium salt is high.Water temperature is then
On the contrary.
Ammonia in water can generate under the effect of the oxygen nitrite, and further form nitrate.While the Asia in water
Nitrate can also be converted into nitrogen by microbial action under anaerobic.Mineralized nitrogen is nitrate reaction：
4NH3 + 5O2==4NO+6H2O
2NO+O2==2NO2
4NO2+2H2O+O2==4HNO3
（NH4）2C2O4+Ca2+/Mg2+==CaC2O4↓/MgC2O4↓+2NH4 +
The present invention is different from the ature of coal charcoal of the form such as existing column, broken with powdery carbon as break-through point, to reaching preferably suction
Attached effect.
Said method on absorbent charcoal carrier by loading various impregnating agent and realizing to various industrial sewage purifications and effectively
COD is reduced, its advantage is as follows：
1st, the species of load active component mainly includes Ca, Mg, Fe, Cl element.
2nd, specified activity component is loaded on the carrier material and prepares impregnated carbon, with to various industrial sewage purifications and
Effectively reduce COD.
3rd, the product can exist according to the market demand with powdery or regular shape.
The present invention is reasonable in design, selects the absorbent charcoal carrier of optimization, active substance is configured to by a certain percentage mixing molten
Liquid, by way of dipping calcining by active substance payload in absorbent charcoal carrier, rear semi-finished product pulverizing can also pass through
Addition binding agent goes out other products of the shapes such as rectangle, column through Forming press.Activated carbon has because of the flourishing hole of itself
Good adsorption effect, in addition on this basis load can be directed to the corresponding active component of water pollutant, in sewage
Ammonia nitrogen, phosphate anion and reduction COD, make process faster more convenient, and cost is reduced.
Specific embodiment
The specific embodiment of the present invention is described in detail below.
Embodiment 1
A kind of industrial sewage purification and effectively reduction COD grained catalysts, with activated carbon weight to count, bear on absorbent charcoal carrier
It is loaded with 10% Ca elements, 12% Mg elements, 12% Fe elements, 25% Cl elements.
Wherein, Ca elements come from Calcium Carbonate etc., and Mg elements come from magnesium carbonate etc., Fe elements come from ferrum oxide or
Iron chloride etc..
Its preparation method is as follows：
（1）Mixed solution is configured：The impregnating agent containing active component for weighing predetermined weight is added to the hydrochloric acid and steaming for calculating
In the mixed solvent of distilled water, heat and be stirred continuously, impregnating agent is fully dissolved, solution temperature to be mixed reaches 30-50 DEG C, stops
Only heat；
（2）Dipping：Using equivalent impregnation method, the above-mentioned mixed solution for having configured is added to the leaching for filling ature of coal crushing activated carbon
In stain machine, rapid stirring, until solution is fully absorbed；
（3）Activation：Mixed material is added in the air draught of heat carries out calcining drying, when gas flow temperature reaches 100 DEG C
Start timing, continue to react 1～1.5h, temperature control is between 100～130 DEG C；
（4）Pulverizing：By semi-finished product pulverizing to 300 mesh or more.
（5）Molding：By the binding agent for adding specific preparation, the semi-finished product of milled and binding agent are pressed into 20:1 ratio is mixed
Stirring is closed, with rectangle or plodder molding procedure is carried out.
The product may finally powdery or the presence of regular shape form.
Embodiment 2
A kind of industrial sewage purification and effectively reduction COD grained catalysts, with activated carbon weight to count, bear on absorbent charcoal carrier
It is loaded with 5% Ca elements, 15% Mg elements, 10% Fe elements, 40% Cl elements.
, with embodiment 1, the product may finally powdery or the presence of regular shape form for preparation method.
Embodiment 3
A kind of industrial sewage purification and effectively reduction COD grained catalysts, with activated carbon weight to count, bear on absorbent charcoal carrier
It is loaded with 15% Ca elements, 10% Mg elements, 5% Fe elements, 50% Cl elements.
, with embodiment 1, the product may finally powdery or the presence of regular shape form for preparation method.
Embodiment 4
A kind of industrial sewage purification and effectively reduction COD grained catalysts, with activated carbon weight to count, bear on absorbent charcoal carrier
It is loaded with 10% Ca elements, 8% Mg elements, 15% Fe elements, 10% Cl elements.
, with embodiment 1, the product may finally powdery or the presence of regular shape form for preparation method.
Finally it should be noted that above example is only to illustrate technical scheme and unrestricted, although reference
The embodiment of the present invention has been described in detail, it will be understood by those within the art that, technical scheme is entered
Row modification or equivalent, without departure from the spirit and scope of technical scheme, it all should cover the power of the present invention
In the claimed scope of profit.
Claims (4)
1. a kind of industrial sewage purification and effectively reduction COD grained catalysts, it is characterised in that：It is loaded with absorbent charcoal carrier
5 ~ 15% Ca, 5 ~ 15% Mg, 5 ~ 15% Fe, 10 ~ 50% Cl.
2. industrial sewage purification according to claim 1 and effectively reduction COD grained catalysts, it is characterised in that：It is living
10% Ca, 12% Mg, 12% Fe, 25% Cl are loaded with property high-area carbon.
3. industrial sewage purification according to claim 1 and 2 and effectively reduction COD grained catalysts, it is characterised in that：
The absorbent charcoal carrier is ature of coal crushing activated carbon.
4. industrial sewage purification described in claim 3 and effective preparation method for reducing COD grained catalysts, its feature exists
In：Comprise the steps：
（1）Mixed solution is configured：Weigh the mixing that the impregnating agent containing active component is added to the hydrochloric acid and distilled water for calculating
In solvent, heat and be stirred continuously, impregnating agent is fully dissolved, solution temperature to be mixed reaches 30-50 DEG C, stop heating；
（2）Dipping：Using equivalent impregnation method, the above-mentioned mixed solution for having configured is added to the leaching for filling ature of coal crushing activated carbon
In stain machine, rapid stirring, until solution is fully absorbed；
（3）Activation：Mixed material is added in the air draught of heat carries out calcining drying, when gas flow temperature reaches 100 DEG C
Start timing, continue to react 1～1.5h, temperature control is between 100～130 DEG C；
（4）Pulverizing：By semi-finished product pulverizing to 300 mesh or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610980686.4A CN106563474A (en) | 2016-11-08 | 2016-11-08 | Powdery catalyst for purifying industrial sewage and effectively reducing COD and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610980686.4A CN106563474A (en) | 2016-11-08 | 2016-11-08 | Powdery catalyst for purifying industrial sewage and effectively reducing COD and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106563474A true CN106563474A (en) | 2017-04-19 |
Family
ID=58540126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610980686.4A Pending CN106563474A (en) | 2016-11-08 | 2016-11-08 | Powdery catalyst for purifying industrial sewage and effectively reducing COD and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106563474A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385158A (en) * | 2021-04-28 | 2021-09-14 | 徐州华睿炭材料科技有限公司 | Preparation method of phosphorus removal activated carbon |
Citations (5)
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|---|---|---|---|---|
| JPH04187289A (en) * | 1990-11-21 | 1992-07-03 | Nippon Foil Mfg Co Ltd | Water purifying agent |
| CN101817584A (en) * | 2010-04-27 | 2010-09-01 | 哈尔滨工业大学 | Method for rapid recovery of denitrification and dephosphorization characteristics of normal-temperature aerobic granular sludge |
| CN102091593A (en) * | 2010-12-07 | 2011-06-15 | 浙江大学 | Preparation method of functionalized fly ash and zeolite composite particles |
| CN103922452A (en) * | 2014-05-14 | 2014-07-16 | 山东盛阳集团有限公司 | Coking wastewater compound chemical and preparation method thereof and application thereof |
| CN104437354A (en) * | 2014-12-01 | 2015-03-25 | 浙江大学 | Method for preparing improved coal ash-zeolite composite particles |
-
2016
- 2016-11-08 CN CN201610980686.4A patent/CN106563474A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04187289A (en) * | 1990-11-21 | 1992-07-03 | Nippon Foil Mfg Co Ltd | Water purifying agent |
| CN101817584A (en) * | 2010-04-27 | 2010-09-01 | 哈尔滨工业大学 | Method for rapid recovery of denitrification and dephosphorization characteristics of normal-temperature aerobic granular sludge |
| CN102091593A (en) * | 2010-12-07 | 2011-06-15 | 浙江大学 | Preparation method of functionalized fly ash and zeolite composite particles |
| CN103922452A (en) * | 2014-05-14 | 2014-07-16 | 山东盛阳集团有限公司 | Coking wastewater compound chemical and preparation method thereof and application thereof |
| CN104437354A (en) * | 2014-12-01 | 2015-03-25 | 浙江大学 | Method for preparing improved coal ash-zeolite composite particles |
Non-Patent Citations (1)
| Title |
|---|
| 陈靖等: "Fe/Mg 负载改性竹炭去除水中的氨氮", 《环境工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385158A (en) * | 2021-04-28 | 2021-09-14 | 徐州华睿炭材料科技有限公司 | Preparation method of phosphorus removal activated carbon |
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Application publication date: 20170419 |