CN106673088A - Modifier for wet magnesium desulphurization slag, wet magnesium desulphurization slag and preparation method of wet magnesium desulphurization slag - Google Patents
Modifier for wet magnesium desulphurization slag, wet magnesium desulphurization slag and preparation method of wet magnesium desulphurization slag Download PDFInfo
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- CN106673088A CN106673088A CN201710019584.0A CN201710019584A CN106673088A CN 106673088 A CN106673088 A CN 106673088A CN 201710019584 A CN201710019584 A CN 201710019584A CN 106673088 A CN106673088 A CN 106673088A
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- modifying agent
- charcoal
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000011777 magnesium Substances 0.000 title claims abstract description 66
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 66
- 239000002893 slag Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003607 modifier Substances 0.000 title abstract 4
- 239000010881 fly ash Substances 0.000 claims abstract description 24
- 239000000440 bentonite Substances 0.000 claims abstract description 19
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 19
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 19
- 229960000892 attapulgite Drugs 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 63
- 238000006477 desulfuration reaction Methods 0.000 claims description 51
- 230000023556 desulfurization Effects 0.000 claims description 51
- 239000003610 charcoal Substances 0.000 claims description 35
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- 235000012216 bentonite Nutrition 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 10
- 239000008157 edible vegetable oil Substances 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- 238000005336 cracking Methods 0.000 claims description 7
- 239000005416 organic matter Substances 0.000 claims description 7
- 241000124033 Salix Species 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229910021647 smectite Inorganic materials 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 244000166124 Eucalyptus globulus Species 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 19
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011574 phosphorus Substances 0.000 abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 9
- 239000002351 wastewater Substances 0.000 abstract description 9
- 239000004927 clay Substances 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 13
- 239000000725 suspension Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 6
- 159000000003 magnesium salts Chemical class 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical group [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 230000003009 desulfurizing effect Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000010902 straw Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 235000017060 Arachis glabrata Nutrition 0.000 description 3
- 244000105624 Arachis hypogaea Species 0.000 description 3
- 235000010777 Arachis hypogaea Nutrition 0.000 description 3
- 235000018262 Arachis monticola Nutrition 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 235000020232 peanut Nutrition 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 2
- 235000019796 monopotassium phosphate Nutrition 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 2
- 150000003016 phosphoric acids Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
- C02F1/00—Treatment of water, waste water, or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5254—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using magnesium compounds and phosphoric acid for removing ammonia
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/78—Recycling of wood or furniture waste
Landscapes
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a modifier for wet magnesium desulphurization slag, the wet magnesium desulphurization slag and a preparation method of the wet magnesium desulphurization slag. The modifier comprises raw materials in parts by mass as follows: 9-35 parts of sawdust, 6-12 parts of biochar, 10-18 parts of attapulgite, 8-25 parts of bentonite, 6-20 parts of fly ash and 18-35 parts of decoloring clay. Through specific matching of the raw materials including the sawdust, the biochar, the attapulgite, the bentonite, the fly ash and the decoloring clay, the wet magnesium desulphurization slag prepared from the modifier is not prone to hardening, is higher in solubility and is higher in ammonia nitrogen and total phosphorus removal efficiency when used for treating high ammonia-nitrogen wastewater.
Description
Technical field
The present invention relates to the technical field of trade waste recycling, in particular to wet-type magnesium method desulfurization slag
Modifying agent, wet-type magnesium method desulfurization slag and preparation method thereof.
Background technology
Relative to calcium method desulfurization, magnesium processes desulfurization has that investment cost is low, floor space is small, is not easily blocked, desulfurization effect
The advantages of rate is high, byproduct is recyclable.Desulfurization enterprise directly can transform magnesium processes desulfurization as in engineering from calcium method sulfur removal technology
Technique, makes cost of investment further reduce, therefore with the trend of gradually substitution calcium method.Desulphurizing magnesium slag is that wet-type magnesium method flue gas takes off
Accessory substance obtained by sulphur, its main component is magnesium sulfate and magnesium sulfite.The product is easily hardened, be insoluble in water, is resource
The maximum bottleneck for utilizing.Because the current wastewater discharge standard of China is not distinctly claimed to magnesium ion and sulfate radical content, because
This many enterprise is landfill or aerating oxidation to the main methods of magnesium processes desulfurization slag for Adlerika is directly discharged.This is not
The wasting of resources of amount nutrient in two kinds of magnesium and sulphur is only caused, is also easy to cause secondary pollution to environment.
On the other hand, in environment-protecting industrial field, magnesium salts is a kind of efficiency decolorising agent very high, flocculant.Enviromental protection enterprise needs
The magnesium salts of different shape is bought to meet Production requirement.Such as in disposal of commercial waste phosphoric acid field, addition magnesium salts, caustic soda and nitrogen source
Phosphate radical can be made to form precipitation；In sewage treatment area, addition magnesium salts and calcium can play decolouring and flocculation, so as to drop
Low water body recovery technology, COD and colourity；In compost field, tend to cause a large amount of NH3Volatilization.This not only causes heap
The nutrient loss of fertilizer product, reduces fertilizer efficiency, while also causing secondary pollution to environment.Research shows, to heap body weight addition magnesium salts
Can play a part of to protect nitrogen with phosphate and reduce foul smell.So be limited by addition magnesium salts it is expensive, these methods some
Enterprise is difficult to large-scale application.
In the prior art, the easy to be hardened of magnesium processes desulfurization slag, solubility are relatively low, and apply the treatment in high ammonia-nitrogen wastewater
When its ammonia nitrogen, total phosphorus removal efficiency it is relatively low.
The content of the invention
In view of this, one aspect of the present invention is to provide a kind of modifying agent of wet-type magnesium method desulfurization slag, uses the modifying agent
The wet-type magnesium method desulfurization slag of preparation is difficult that hardened, solubility is higher, applies in the treatment of high ammonia-nitrogen wastewater its ammonia nitrogen, total phosphorus
Removal efficiency is higher.
A kind of modifying agent of wet-type magnesium method desulfurization slag, its raw material includes 9~35 parts of wooden chaffs, 6~12 parts of lifes according to mass parts
Thing charcoal, 10~18 parts of attapulgites, 8~25 parts of bentonites, 6~20 parts of flyash and 18~35 parts of decolorizing earths.
Further, the wooden chaff is the one kind in eucalyptus chaff, pine tree chaff, willow chaff and willow chaff or at least two kinds.
Further, the charcoal is by trees or the stalk charcoal that anoxybiotic is cracked at 400~500 DEG C.
Preferably, the charcoal specific surface area is more than 5m2/g；
Preferably, the pH of the charcoal is more than 9.0；
Preferably, the granularity of the charcoal is more than 100 mesh.
Further, the granularity of the attapulgite is more than 150 mesh；
Preferably, the moisture of the attapulgite is less than 5%.
Further, the bentonite is calcium and magnesium base bentonite；
Preferably, the bentonitic smectite content is more than 85%；
Preferably, the bentonitic moisture is less than 5%；
Preferably, the bentonitic granularity is more than 150 mesh.
Further, the moisture of the flyash is less than 5%；
Preferably, the granularity of the flyash is more than 60 mesh.
Further, the decolorizing earth is edible oil decolorizing earth；
Preferably, the content of organic matter of the decolorizing earth is more than 20%.
Another aspect of the invention is to provide a kind of wet-type magnesium method desulfurization slag, and the wet-type magnesium method desulfurization slag is difficult hardened, molten
Xie Du is higher, applies the removal efficiency of in the treatment of high ammonia-nitrogen wastewater its ammonia nitrogen, total phosphorus higher.
A kind of wet-type magnesium method desulfurization slag, its raw material is comprising wet-type magnesium method desulfurization liquid and such as claim 1~7 any one institute
State modifying agent；The modifying agent is comprising the first component being made up of charcoal, attapulgite, bentonite and by wooden chaff, decolouring
The second component that soil, flyash are constituted, first component is 1 with the mass ratio of wet-type magnesium method desulfurization liquid：40~50, institute
It is 1 that the second component is stated with the mass ratio of wet-type magnesium method desulfurization liquid：40~50.
Further aspect of the present invention is to provide a kind of preparation method of wet-type magnesium method desulfurization slag, and it is wet that the preparation method is obtained
Formula magnesium processes desulfurization slag is difficult that hardened, solubility is higher, applies the removal efficiency of its ammonia nitrogen, total phosphorus in the treatment of high ammonia-nitrogen wastewater
It is higher.
A kind of preparation method that wet-type magnesium method desulfurization slag is prepared using above-mentioned modifying agent, is comprised the following steps：
Modifying agent is mixed with wet-type magnesium method desulfurization liquid, compound is obtained；Wherein, the modifying agent include by charcoal,
The first component that attapulgite, bentonite are constituted and the second component being made up of wooden chaff, decolorizing earth, flyash, described
One component is 1 with the mass ratio of wet-type magnesium method desulfurization liquid：40~50, the quality of second component and wet-type magnesium method desulfurization liquid
The ratio between be 1：40~50；
And, dry the compound.
Further, the batch mixing order of the mixing is first to mix first component and wet-type magnesium method desulfurization liquid, then
It is mixed into second component.
Modifying agent of the invention, its raw material includes wooden chaff, charcoal, attapulgite, bentonite, flyash, decolorizing earth, this
A little raw materials are by specific proportioning so that it is higher to be difficult hardened, solubility using the wet-type magnesium method desulfurization slag prepared by the modifying agent,
Apply the removal efficiency of in the treatment of high ammonia-nitrogen wastewater its ammonia nitrogen, total phosphorus higher.
Specific embodiment
For the ease of understanding the present invention, embodiment is closed below to further illustrate technical scheme.
Term as used herein：
" mass parts " refer to the basic measurement unit of the mass ratio relation for representing multiple components, and 1 part can represent arbitrary list
Position quality, can such as be expressed as 1g, may also indicate that 2.689g etc..If we say that the mass parts of component A are a parts, the matter of B component
Amount part is b parts, then it represents that the quality of component A and the mass ratio a of B component：b.Or, the quality for representing component A is aK, B groups
The quality divided is bK (K is Arbitrary Digit, represents multiplying factor).Can not misread, and unlike mass fraction, all components
Mass parts sum be not limited to 100 parts of limitation.
" one ", " one kind " and " described " are used interchangeably and refer to one or more.
"and/or" is used to represent that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B)；
In addition, the scope stated by end points herein includes all numerical value included in the range of this (for example, 1 to 10 bag
Include 1.4,1.9,2.33,5.75,9.98 etc.).
In addition, the statement of " at least one " herein include one and the above all numbers (for example, at least 2, at least
4, at least 6, at least 8, at least 10, at least 25, at least 50, at least 100 etc.).
The modifying agent of wet-type magnesium method desulfurization slag of the invention, its raw material includes 9~35 parts of wooden chaffs, 6~12 according to mass parts
Part charcoal, 10~18 parts of attapulgites, 8~25 parts of bentonites, 6~20 parts of flyash and 18~35 parts of decolorizing earths.
Specifically, the mass parts of wooden chaff can for 9 parts, 9.2 parts, 9.5 parts, 10 parts, 12 parts, 15 parts, 20 parts, 22 parts, 30
Part, 32 parts, 33 parts, 34 parts or 35 parts etc.；The mass parts of charcoal can for 6 parts, 6.2 parts, 6.5 parts, 7 parts, 8 parts, 10 parts, 11
Part, 11.5 parts or 12 parts etc.；The mass parts of concave convex rod can be 10 parts, 10.5 parts, 12 parts, 14 parts, 16 parts, 17 parts or 18 parts
Deng；Bentonitic mass parts can be 8 parts, 8.5 parts, 10 parts, 12 parts, 10 parts, 16 parts, 18 parts, 20 parts, 23 parts, 24 parts or 25
Part etc.；The quality of flyash can be 6 parts, 6.5 parts, 8 parts, 10 parts, 13 parts, 15 parts, 18 parts, 19 parts or 20 parts etc.；Decolorizing earth
Mass parts can be 18 parts, 18.5 parts, 20 parts, 26 parts, 27 parts, 30 parts, 32 parts, 33 parts, 34 parts or 35 parts etc..
Above-mentioned wooden chaff refer to carry out timber process when because cutting and from trees fallen trees foam in itself
Shape wood chip.Wooden chaff of the invention can include eucalyptus chaff, pine tree chaff, willow chaff and willow chaff or its any multiple combination.
Charcoal refer to bio-organic materials (biomass) in anoxic or anoxybiotic environment, after high temperature pyrolysis generate
Solid product.Charcoal of the invention can include charcoal obtained from trees or stalk as raw material.Herein, trees can be with
It is fruit tree etc..Stalk can be agricultural crop straw, and such as wheat stalk, rice straw, maize straw is not limited to form etc..
The condition of the correlated response of charcoal is obtained as raw material with trees or stalk, such as temperature and time does not make especially limit
It is fixed.Preferably, can at 400~500 DEG C anoxybiotic cracking, such as anoxybiotic cracking temperature can for 400 DEG C, 405 DEG C, 410 DEG C, 420
DEG C, 450 DEG C, 480 DEG C, 490 DEG C, 495 DEG C or 500 DEG C.At a temperature of this anoxybiotic is cracked, its referring to property of time for 2~
4h, such as 2h, 2.5h, 3h, 3h, 3.5h or 4h, preferably 2.5h.Before anoxybiotic cracking reaction, trees or stalk can be carried out
Crush, it is 4cm or so that can for example be crushed to length, and diameter is less than 1cm specifications.
The specific surface of above-mentioned charcoal is with more than 5m2/ g is preferred.The pH of charcoal is preferred with more than 9.0.The grain of charcoal
Degree is preferred with more than 100 mesh.
Attapulgite also known as palygorskite (Palygorskite) or Palygorskite, be it is a kind of have chain layer structure containing Shuifu County
Zeopan clay mineral.Its structure belongs to 2：1 type clay mineral.Each 2：In 1 unit structure layer, tetrahedron chip angle top
Direction overturns at a certain distance, forming layer chain.
In the present invention, the granularity of attapulgite is advisable with more than 150 mesh；The moisture of attapulgite is with less than 5%
It is good.Herein, it refers to percentage that moisture accounts for gross mass that moisture may be appreciated.
Bentonite is called bentonite, bentonite or amargosite, refers to the nonmetallic minerals with montmorillonite as main mineral constituent,
Smectite structure presss from both sides one layer of alumina octahedral is constituted 2 by two silicon-oxy tetrahedrons：1 type crystal structure.
Bentonitic specific species of the invention is not particularly limited, for example preferably calcium and magnesium base bentonite.Herein, calcium and magnesium
Base bentonite refers to that interlayer cation is calcium ion and magnesium ion.
Bentonitic smectite content is advisable with more than 85%.Bentonitic moisture is preferred with less than 5%.Bentonite
Granularity be preferred with more than 150 mesh.
Flyash refers to the primary solids waste got off discharged in flue gas from after coal combustion, its main oxides composition
For：SiO2、Al2O3、FeO、Fe2O3、CaO、TiO2Deng.
The moisture of flyash of the invention is preferred with less than 5%.The granularity of flyash is advisable with more than 60 mesh.
Decolorizing earth refers to the earthy material of any particulate, natural output, high adsorption rate, with from fat, grease
Or adsorbing contaminant or the ability with color substance in oils, it is also called bleaching earth, the recessed soil of activity, adsoptive clay, adsorbent etc..
Decolorizing earth of the invention is preferably edible oil decolorizing earth.Herein, edible oil decolorizing earth refers to suitable for edible oil
Dehydration soil.
In the present invention, the content of organic matter of decolorizing earth is advisable with more than 20%.
Wet-type magnesium method desulfurization slag of the invention, its raw material is comprising wet-type magnesium method desulfurization liquid and such as above-mentioned modifying agent；This is modified
Agent is made up of comprising the first component being made up of charcoal, attapulgite, bentonite and wooden chaff, decolorizing earth, flyash
Second component, first component is 1 with the mass ratio of wet-type magnesium method desulfurization liquid：40~50, second component and wet-type magnesium
The mass ratio of method doctor solution is 1：40~50.
The preparation method that wet-type magnesium method desulfurization slag is prepared using above-mentioned modifying agent of the invention, is comprised the following steps：
Modifying agent is mixed with wet-type magnesium method desulfurization liquid, compound is obtained；Wherein, the modifying agent include by charcoal,
The first component that attapulgite, bentonite are constituted and the second component being made up of wooden chaff, decolorizing earth, flyash, described
One component is 1 with the mass ratio of wet-type magnesium method desulfurization liquid：40~50, the quality of second component and wet-type magnesium method desulfurization liquid
The ratio between be 1：40~50；
And, dry the compound.
In above-mentioned preparation method, there is no particular limitation for the order of mixing.Preferably, first by first component and wet type
Magnesium processes doctor solution mixes, and is blended into second component.
During above-mentioned mixing, can be dehydrated using filter, such as vacuum filter cloth.
Below do not address part and be applied to prior art.
Embodiment 1
It is length 4cm that equivalent orange branches and peanut shell are crushed, and diameter is less than 1cm specifications, then the anoxybiotic at 400 DEG C
The charcoal that cracking is obtained for 2.5 hours, separating twice crosses 100 mesh sieves.The charcoal surface area is more than 5m2/ g, pH value is 9.5.
6 parts of above-mentioned charcoals are mixed with 9 parts of calcium-base bentonites of the mesh sieve of mistake 200,10 parts of mesh sieve attapulgites of mistake 150,
The first component is obtained；30 parts of the mesh sieve of the mistake 60 wooden chaffs are mixed with 30 parts of edible oil decolorizing earths, 15 parts of mesh of mistake 100 are added
The flyash mixing of sieve, obtains the second component.
Before desulfurization concentrate falls into vacuum filter cloth, the first component and suspension are pressed 1:40 ratio uniforms are sprinkled upon suspension
In.Before the vacuum filter cloth end at 1 meter, the second component and suspension weight are compared 1:40 are uniformly spread on filter cloth.That falls is de-
Sulphur magnesium slag is dried according to free water content and weather condition or temporarily stacked.
The wet type desulfurizing magnesium slag pH that this obtains is 7.85, and the content of organic matter is 4.9%, and free water content is 12.4%,
3 meters high are stacked two months, without hardened phenomenon.
The example does contrast test with ammonia nitrogen in removing pig farm biogas slurry, and control treatment is to add the magnesium chloride of equivalent magnesium.
Phosphoric acid salt addn is potassium dihydrogen phosphate, and result of the test is as shown in table 1：
The removal efficiency and processing cost of the ammonia nitrogen of table 1, total phosphorus
Embodiment 2
It is length 4cm by the broken branch in equivalent gardens and corn straw smashing, diameter is less than 1cm specifications, then at 400 DEG C absolutely
Oxygen cracks the charcoal for obtaining for 2.5 hours, and separating twice crosses 100 mesh sieves.The charcoal surface area is more than 6m2/g, and pH value is
9.2。
10 parts of above-mentioned charcoals are mixed with the attapulgite of 22 parts of calcium-base bentonites of the mesh sieve of mistake 200,18 parts of mesh sieves of mistake 150
Close, the first component is obtained；10 parts of wooden chaffs that 60 mesh sieves will be crossed mix with 20 parts of edible oil decolorizing earths, then are added thereto to 18 parts of mistakes
The flyash mixing of 100 mesh sieves, obtains the second mixture.
Before desulfurization concentrate falls into vacuum filter cloth, the first component and suspension are pressed 1:50 ratio uniforms are sprinkled upon suspension
In.Before the vacuum filter cloth end at 1 meter, the second component and suspension weight are compared 1:40 are uniformly spread on filter cloth.That falls is de-
Sulphur magnesium slag is dried according to free water content and weather condition or temporarily stacked.
The wet type desulfurizing magnesium slag pH that this obtains is 8.45, and the content of organic matter is 2.9%, and free water content is 9.1%, heap
3 meters high are put two months, without hardened phenomenon.Can be used in the treatment of high ammonia-nitrogen wastewater, ammoniacal nitrogen is removed with MAP methods technique.
The example does contrast test with ammonia nitrogen in removing pig farm biogas slurry, and control treatment is to add the magnesium chloride of equivalent magnesium.
Phosphoric acid salt addn is potassium dihydrogen phosphate, and result of the test is as shown in table 1.
The removal efficiency and processing cost of the ammonia nitrogen of table 2, total phosphorus
Embodiment 3
It is length 4cm that equivalent orange branches and peanut shell are crushed, and diameter is less than 1cm specifications, then the anoxybiotic at 500 DEG C
The charcoal that cracking is obtained for 2.5 hours, separating twice crosses 100 mesh sieves.The charcoal surface area is more than 5m2/ g, pH value is 9.5.
12 parts of above-mentioned charcoals are mixed with 25 parts of calcium-base bentonites of the mesh sieve of mistake 200,10 parts of mesh sieve attapulgites of mistake 150
Close, the first component is obtained；35 parts of the mesh sieve of the mistake 60 wooden chaffs are mixed with 35 parts of edible oil decolorizing earths, then is added thereto to 20
Part crosses the flyash mixing of 100 mesh sieves, obtains the second component.
Before desulfurization concentrate falls into vacuum filter cloth, the first component and suspension are pressed 1：40 ratio uniforms are sprinkled upon suspension
In.Before the vacuum filter cloth end at 1 meter, the second component and suspension weight are compared 1：50 are uniformly spread on filter cloth.That falls is de-
Sulphur magnesium slag is dried according to free water content and weather condition or temporarily stacked.
The wet type desulfurizing magnesium slag pH that this obtains is 7.85, and the content of organic matter is 4.9%, and free water content is 12.4%,
3 meters high are stacked two months, without hardened phenomenon.
Embodiment 4
It is length 4cm that equivalent orange branches and peanut shell are crushed, and diameter is less than 1cm specifications, then the anoxybiotic at 450 DEG C
The charcoal that cracking is obtained for 2.5 hours, separating twice crosses 100 mesh sieves.The charcoal surface area is more than 5m2/ g, pH value is 9.5.
9 parts of above-mentioned charcoals are mixed with 16 parts of calcium-base bentonites of the mesh sieve of mistake 200,14 parts of mesh sieve attapulgites of mistake 150,
The first component is obtained；22 parts of the mesh sieve of the mistake 60 wooden chaffs are mixed with 21 parts of edible oil decolorizing earths, then is added thereto to 13 parts
The flyash mixing of 100 mesh sieves is crossed, the second component is obtained.
Before desulfurization concentrate falls into vacuum filter cloth, the first component and suspension are pressed 1：45 ratio uniforms are sprinkled upon suspension
In.Before the vacuum filter cloth end at 1 meter, the second component and suspension weight are compared 1：45 are uniformly spread on filter cloth.That falls is de-
Sulphur magnesium slag is dried according to free water content and weather condition or temporarily stacked.
The wet type desulfurizing magnesium slag pH that this obtains is 7.85, and the content of organic matter is 4.9%, and free water content is 12.4%,
3 meters high are stacked two months, without hardened phenomenon.
As be can be seen that using the wet-type magnesium method desulfurization slag prepared by modifying agent of the invention in high ammonia-nitrogen wastewater with upper table
Treatment when its ammonia nitrogen, total phosphorus removal efficiency it is higher, it is suitable with magnesium sulfate, magnesium chloride.In addition, its cost declines to a great extent.More
Importantly, providing larger display possibility for discarded object obtains more preferable recycling.
Because the number range of each technological parameter involved in the present invention can not possibly all embody in the above-described embodiments,
As long as but those skilled in the art's envisioned any numerical value fallen into the above-mentioned number range completely can implement this
Invention, also includes any combination of occurrence in the range of some numerical value certainly.Herein, for the consideration of length, eliminate to
Go out the embodiment of occurrence in certain one or more number range, this disclosure for being not to be construed as technical scheme is not filled
Point.
Applicant states that the present invention illustrates detailed process equipment of the invention and technological process by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, do not mean that the present invention has to rely on above-mentioned detailed
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
Addition, concrete mode selection to the equivalence replacement and auxiliary element of each raw material of product of the present invention etc., falls in protection of the invention
In the range of.
Claims (10)
1. a kind of modifying agent of wet-type magnesium method desulfurization slag, it is characterised in that its raw material includes 9~35 parts of wooden chaffs, 6 according to mass parts
~12 parts of charcoals, 10~18 parts of attapulgites, 8~25 parts of bentonites, 6~20 parts of flyash and 18~35 parts of decolorizing earths.
2. modifying agent according to claim 1, it is characterised in that the wooden chaff is eucalyptus chaff, pine tree chaff, willow chaff and willow
Set the one kind in chaff or at least two kinds.
3. modifying agent according to claim 1, it is characterised in that the charcoal is 400~500 by trees or stalk
The charcoal of anoxybiotic cracking at DEG C.
Preferably, the charcoal specific surface area is more than 5m2/g；
Preferably, the pH of the charcoal is more than 9.0；
Preferably, the granularity of the charcoal is more than 100 mesh.
4. modifying agent according to claim 1, it is characterised in that the granularity of the attapulgite is more than 150 mesh；
Preferably, the moisture of the attapulgite is less than 5%.
5. modifying agent according to claim 1, it is characterised in that the bentonite is calcium and magnesium base bentonite；
Preferably, the bentonitic smectite content is more than 85%；
Preferably, the bentonitic moisture is less than 5%；
Preferably, the bentonitic granularity is more than 150 mesh.
6. modifying agent according to claim 1, it is characterised in that the moisture of the flyash is less than 5%；
Preferably, the granularity of the flyash is more than 60 mesh.
7. modifying agent according to claim 1, it is characterised in that the decolorizing earth is edible oil decolorizing earth；
Preferably, the content of organic matter of the decolorizing earth is more than 20%.
8. a kind of wet-type magnesium method desulfurization slag, it is characterised in that its raw material is comprising wet-type magnesium method desulfurization liquid and such as claim 1~7
Modifying agent described in any one；The modifying agent include the first component for being made up of charcoal, attapulgite, bentonite and by
The second component that wooden chaff, decolorizing earth, flyash are constituted, first component is 1 with the mass ratio of wet-type magnesium method desulfurization liquid：
40~50, second component is 1 with the mass ratio of wet-type magnesium method desulfurization liquid：40~50.
9. modifying agent described in a kind of 1~7 any one of usage right requirement prepares the preparation method of wet-type magnesium method desulfurization slag, and it is special
Levy and be, comprise the following steps：
Modifying agent is mixed with wet-type magnesium method desulfurization liquid, compound is obtained；Wherein, the modifying agent is included by charcoal, concavo-convex
Rod soil, the first component that bentonite is constituted and the second component being made up of wooden chaff, decolorizing earth, flyash, described first group
It is 1 to divide with the mass ratio of wet-type magnesium method desulfurization liquid：40~50, the mass ratio of second component and wet-type magnesium method desulfurization liquid
It is 1：40~50；
And, dry the compound.
10. method of modifying according to claim 1, it is characterised in that the batch mixing order of the mixing is, first by described the
One component and wet-type magnesium method desulfurization liquid mix, and are blended into second component.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107253711A (en) * | 2017-07-14 | 2017-10-17 | 韦卓林 | The preparation method and coconut palm chaff charcoal, purposes of a kind of coconut palm chaff charcoal |
| CN113198419A (en) * | 2021-04-21 | 2021-08-03 | 河海大学 | Substrate in-situ covering nitrogen resistance control removal material and preparation method and application thereof |
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| GB350603A (en) * | 1929-04-19 | 1931-06-18 | Int Nickel Co | Improvements in the manufacture of ferro-nickel magnetic alloys |
| KR20100118666A (en) * | 2009-04-29 | 2010-11-08 | 진혜경 | Eco light soil |
| CN104909816A (en) * | 2015-06-09 | 2015-09-16 | 古耀坤 | Sintering swelled ultra-lightweight ceramsite produced by using silt and manufacturing method thereof |
| CN104945175A (en) * | 2015-07-27 | 2015-09-30 | 蒋文兰 | Method for producing coal ash carbonized nutrient soil |
| CN105130050A (en) * | 2015-08-25 | 2015-12-09 | 苏州科技学院 | Method for removing nitrogen and phosphorus in waste water |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB350603A (en) * | 1929-04-19 | 1931-06-18 | Int Nickel Co | Improvements in the manufacture of ferro-nickel magnetic alloys |
| KR20100118666A (en) * | 2009-04-29 | 2010-11-08 | 진혜경 | Eco light soil |
| CN104909816A (en) * | 2015-06-09 | 2015-09-16 | 古耀坤 | Sintering swelled ultra-lightweight ceramsite produced by using silt and manufacturing method thereof |
| CN104945175A (en) * | 2015-07-27 | 2015-09-30 | 蒋文兰 | Method for producing coal ash carbonized nutrient soil |
| CN105130050A (en) * | 2015-08-25 | 2015-12-09 | 苏州科技学院 | Method for removing nitrogen and phosphorus in waste water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107253711A (en) * | 2017-07-14 | 2017-10-17 | 韦卓林 | The preparation method and coconut palm chaff charcoal, purposes of a kind of coconut palm chaff charcoal |
| CN113198419A (en) * | 2021-04-21 | 2021-08-03 | 河海大学 | Substrate in-situ covering nitrogen resistance control removal material and preparation method and application thereof |
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| CN106673088B (en) | 2019-12-17 |
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