CN106278373A - Utilize water-permeable brick prepared by heavy metal sewage sludge and preparation method thereof - Google Patents
Utilize water-permeable brick prepared by heavy metal sewage sludge and preparation method thereof Download PDFInfo
- Publication number
- CN106278373A CN106278373A CN201610663310.0A CN201610663310A CN106278373A CN 106278373 A CN106278373 A CN 106278373A CN 201610663310 A CN201610663310 A CN 201610663310A CN 106278373 A CN106278373 A CN 106278373A
- Authority
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- China
- Prior art keywords
- water
- heavy metal
- mud
- permeable brick
- innoxious
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 77
- 239000011449 brick Substances 0.000 title claims abstract description 57
- 239000010801 sewage sludge Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000002893 slag Substances 0.000 claims abstract description 20
- 239000006004 Quartz sand Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 19
- 239000010881 fly ash Substances 0.000 claims abstract description 18
- 239000004575 stone Substances 0.000 claims abstract description 17
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 13
- 241001330002 Bambuseae Species 0.000 claims abstract description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 13
- 239000011425 bamboo Substances 0.000 claims abstract description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 11
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000005903 acid hydrolysis reaction Methods 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 28
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 15
- 239000002699 waste material Substances 0.000 claims description 14
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 239000003513 alkali Substances 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 12
- 229910017604 nitric acid Inorganic materials 0.000 claims description 12
- 239000001117 sulphuric acid Substances 0.000 claims description 12
- 235000011149 sulphuric acid Nutrition 0.000 claims description 12
- 239000011790 ferrous sulphate Substances 0.000 claims description 11
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 claims description 11
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 11
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000002604 ultrasonography Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000004567 concrete Substances 0.000 claims description 2
- 239000010903 husk Substances 0.000 claims description 2
- 239000010451 perlite Substances 0.000 claims description 2
- 235000019362 perlite Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 14
- 239000000284 extract Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 34
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 9
- 230000035699 permeability Effects 0.000 description 8
- 235000021110 pickles Nutrition 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000000845 anti-microbial effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 239000002920 hazardous waste Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 206010016807 Fluid retention Diseases 0.000 description 1
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- -1 hydrogen fluorine Acid Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/0675—Vegetable refuse; Cellulosic materials, e.g. wood chips, cork, peat, paper
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of water-permeable brick utilizing heavy metal sewage sludge to prepare and preparation method thereof, water-permeable brick includes following components and weight portion content: innoxious mud 40 45, common stone 20 23, slag 15 18, flyash 8 10, waterglass 12 15, quartz sand 10 12, Kaolin 58, bamboo powder 34 and pore creating material 13, wherein, innoxious mud obtains after being processed by heavy metal sewage sludge, preparation process includes heavy metal sewage sludge acidolysis, heavy metal sewage sludge ultrasonic Separation, ferrite and innoxious mud extract, water-permeable brick raw material mixes, green brick forming, brick bat drying, the steps such as adobe roasting.Compared with prior art, the present invention is while heavy metal sewage sludge is innoxious, extract ferrite product and innoxious mud, the former can be as the Iron Ore Powder before radiation shielding coating additive or steel-refining, the latter can be used for the preparation of sponge urban construction water-permeable brick, the useless rate of profit is high, it is achieved that the maximum resourceization of heavy metal sewage sludge utilizes.
Description
Technical field
The invention belongs to solid hazardous waste in environmental project recycle and building material field, especially relate to one
Kind utilize water-permeable brick prepared by heavy metal sewage sludge and preparation method thereof.
Background technology
Heavy metal sewage sludge is mainly derived from the waste water such as electroplating industry, metal finishing industry, printed circuit board industry
The sludged waste material containing heavy metal produced after reason, is put into the 17th class hazardous waste in National Hazard refuse list
(HW17).Owing to the heavy metals such as Cu, Ni, Cr, Zn, the Fe in above-mentioned industry waste water are transferred in mud, therefore, heavy metal-polluted
Mud is electroplating wastewater " final state thing ", have easily accumulation, unstable, the feature such as be easy to run off, if do not dealt carefully with, any heap
Putting, the heavy metal such as Cu, Ni, Zn, Cr, Fe in its mud is under rain or other effects, it will along mud one soil
The Path Migration of earth one crops one human body, and the secondary pollution of surface water, soil, subsoil water may be caused, even jeopardize life
Thing chain, causes serious environmental disruption.
For feature and the hazardness thereof of heavy metal sewage sludge, examine from the angle of environmental pollution prevention and control and resource circulation utilization
Considering, main use following two processing mode, one is after treatment, make mud will not cause secondary pollution and then landfill or
Storage, i.e. harmlessness disposing；Two is to make the heavy metal resources in mud is carried out synthetical recovery, i.e. recycling.Nothing at present
The method that evilization is disposed has firming agent to solidify, fills, burns and fill out sea；Wherein curing technology is during hazardous waste processes
Important technology, have curing materials be easy to get, the advantage of high treating effect, low cost, i.e. fix the huge sum of money in mud with firming agent
Belong to, process the most again, but still suffer from certain leaching hidden danger；Landfill be comparison be suitable for China's actual conditions a danger give up
Thing harmlessness disposing approach, but the domestic Landfill for heavy metal sewage sludge is still in relatively low level；Throw sea actually to belong to
In the transfer of pollutant, heavy metal sewage sludge is even across solidification, and its threat causing marine ecosystems and human health is
Being difficult to avoid that, the world is forbidden already；Burn heat treatment be realize heavy metal sewage sludge minimizing, innoxious a kind of quick, have
The technology of effect, but, owing to this method energy consumption is higher, burning facility and condition being there are certain requirements, general little Electroplate Factory is difficult
To bear huge processing cost, therefore hardly result in large-area popularization.
Due to resource dilution and the aggravation of environmental pollution, heavy metal sewage sludge is returned as a kind of important heavy metal resources
Receive and utilize, the most both at home and abroad the emphasis of research.Wherein, main method have recovery heavy metal, ferrite comprehensive utilization technique,
Composted makes fertilizer and produces modified plastics product.Chinese patent " a kind of heavy metal-polluted mud resource and nothing
The processing method of evilization " (CN102433437B) disclose and a kind of heavy metal sewage sludge is dehydrated, is entered with flux, binding agent after drying
Row dispensing, clamp dog or ball processed, then coke, block or spherical material are put into smelting furnace carries out melting；This technique is not in mud
Heavy metal recycle.Chinese patent " the full recycling treatment system of heavy metal sewage sludge " (CN203833780U) develops
A kind of full recycling treatment system of heavy metal sewage sludge, can effectively take out profit again by interior contained many useful components such as heavy metal sewage sludges
With, but do not consider how the residue after extracting utilizes；Chinese patent " alkaline sludge containing heavy metal recycling processing method "
(CN201245054) propose one from heavy metal alkaline sludge, extract the resources such as oxygen crystal and calcium sulfate of tapping a blast furnace, but this is heavy
In metal alkaline mud in addition to can generating ferrum oxygen crystal, sodium sulfate, calcium sulfate, acid non-soluble substance etc. is still had to produce, after washing
Acid non-soluble substances etc. are the most innoxious, typically bury, but this not yet reaches full resource utilization.China's publication " a kind of collaborative place
The method putting heavy metal sewage sludge " (Publication No. 105271624A) utilize synergism by a huge sum of money that moisture content is 20～50%
Belong to mud and calcium-based absorbents mixing, dry, pulverizing, obtain calcio mud, then mix with basis raw materials for sintering and dedusting ash, make
Grain, cloth, be finally sintered, obtain sintering deposit；Patent applicant is Baosteel Stainless Steel Co., Ltd., and this method is because of ground system
Preferably, take full advantage of its industrial chain, but be not suitable for promoting the use of.
" sponge city " is theory and the direction of urban construction, i.e. refers to that city can become adapting to environment as sponge
Change and tackle the aspects such as natural disaster and there is good " elastic ", water suction, water-retention, infiltration, water purification when raining, will store when needing
Water " discharge " and be used.Existing town road road surface mostly uses the impermeable material such as cement concrete, pitch to spread
If forming, large-area hydrops can be formed time rainy, be not suitable with the theory of sponge urban development.And water-permeable brick is meeting substantially
Road hardening, smooth while, also there is good permeable and performance of keeping humidity, natural precipitation can be absorbed, and enter underground
Water system, forms good circulation.Therefore, heavy metal sewage sludge extracts the innoxious mud after ferrite to build as sponge city
If with a kind of main raw material(s) of water-permeable brick, there is good environmental benefit and economic benefit.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and to provide one to utilize heavy metal-polluted
Clay standby comprcssive strength is high, water permeability is good, the water-permeable brick of energy-conserving and environment-protective and Antimicrobial preservative and preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of water-permeable brick utilizing innoxious mud to prepare, including following components and weight portion content:
Innoxious mud 40-45, common stone 20-23, slag 15-18, flyash 8-10, waterglass 12-15, quartz sand
10-12, Kaolin 5-8, bamboo powder 3-4 and pore creating material 1-3.
Described slag and quartz sand cross 10 mesh sieves, the particle diameter≤0.15mm of described flyash.
Described pore creating material is perlite, kieselguhr, rice husk or boils stone.
The described preparation method utilizing innoxious mud to prepare water-permeable brick, specifically includes following steps:
(1) in heavy metal sewage sludge, add acid hydrolysis solution stirring, make heavy metal ion and acid reaction be leached, pH in system
When being adjusted to 2.2-3.2, acidolysis reaction terminates；
(2) mixed liquor of step (1) is carried out ultrasonic Treatment, make mud and acid hydrolysis solution be fully contacted and react；
(3) mixed liquor after ultrasonic in step (2) is carried out solid-liquid separation, obtain acid hydrolysis solution and the dirt of residual acid hydrolysis solution
Mud；
(4) mud of residual acid hydrolysis solution in step (3) is rinsed with clear water, sloughs acid hydrolysis solution and the heavy metal of remnants,
Obtain innoxious mud；
(5) liquid produced after rinsing the mud of residual acid hydrolysis solution in the acid hydrolysis solution in step (3) and step (4) is carried out
Mixing, adds ferrous sulfate, and mix homogeneously also heats, adds alkali liquor, and be passed through oxygen, fully generates containing ferrum unit after reaction
Element and the ferrite crystal of heavy metal ion, ferrite crystal separates with alkaline waste liquor, is dried, obtains ferrite, alkaline waste liquor
Process qualified discharge；
(6) the innoxious mud that step (4) is obtained and common stone, slag, flyash, waterglass, quartz sand, kaolinite
Soil, bamboo powder and pore creating material stir into pug after mixing by charge ratio, and control moisture content；
(7) pug of step (6) is put into dry-pressing formed machine dry-pressing formed, prepare difformity and the water-permeable brick brick of size
Base；
(8) the water-permeable brick adobe prepared in step (7) by natural drying or is put into drying baker is dried；
(9) adobe of step (8) dried water-permeable brick is sintered, i.e. obtain water-permeable brick.
The mixture that acid hydrolysis solution is sulphuric acid, nitric acid, Fluohydric acid. and hydrogen peroxide described in step (1), sulphuric acid, nitric acid, hydrogen fluorine
Acid and hydrogen peroxide 8-10:2-4:2-4:1 by volume prepare, and add the 30-that volume is heavy metal sewage sludge volume of acid hydrolysis solution
50%.
The frequency of oscillation of the ultrasound wave described in step (2) is 15-30KHz, and duration of oscillation is 1-2h, and step (4) is described clearly
The number of times that water rinses is 3-5 time.
The addition of the ferrous sulfate described in step (5) is in liquid 8-12 times of heavy metal gross mass, adds hot liquid temperature
Degree is to 55-65 DEG C, and described alkali liquor is NaOH or KOH, and the pH value of alkali liquor amount interpolation to liquid is 8.5-9.
The moisture control of step (6) described pug is at 14-18wt%, the pressure of the dry-pressing formed machine described in step (7)
For 25-35Mpa.
Drying baker described in step (8) is thermostatic drying chamber, and temperature is 103-108 DEG C, and the moisture content of dried adobe is not
More than 6wt%.
It is warming up to 1020-1150 DEG C with the speed of 3.5-4.0 DEG C/min during step (9) sintering, persistently sinters 2.5-3.5h
After be down to room temperature.
Compared with prior art, the invention have the advantages that
1, after heavy metal sewage sludge is by acidolysis, ultrasound wave separation, ferrous sulfate and salkali waste curing heavy metal, first can extract
Ferrite, as the Iron Ore Powder before radiation shielding coating additive or steel-refining, also can be using remaining innoxious mud as preparation
The raw material of sponge urban construction water-permeable brick, maximizes the recycling achieving resource；
2, water-permeable brick prepared by this method, owing to adding slag, common stone as coarse aggregate, innoxious mud, powder
Coal ash is as fine aggregate, and waterglass is as binding agent, and quartz sand has high intensity, characteristic high temperature resistant, corrosion resistant, and Kaolin has
Viscosity and high temperature resistant, bamboo powder can Antimicrobial preservative, be also added into pore creating material, therefore the last water-permeable brick comprcssive strength prepared is high, thoroughly
Aqueous is good, has the premium properties of absorbing sound and lowering noise and Antimicrobial preservative, all meets " water-permeable brick " (CJ/T945～2005) industry standard,
The most with low cost, can industrialized production, responded sponge the idea of the city, can be as Building wood important in sponge urban construction
Material；
3, this method uses the acid hydrolysis solution heavy metal that certain proportion sulphuric acid, nitric acid, Fluohydric acid. and hydrogen peroxide are formulated
Mud carries out thorough acidolysis, and wherein sulphuric acid plays effect of mainly clearing up, Organic substance a small amount of in the removable mud of hydrogen peroxide oxidation, adds
The nitric acid entered and Fluohydric acid. can improve digestion condition, quickening oxidation rate and improvement and clear up effect, which ensure that follow-up water-permeable brick
In raw material, mud is innoxious, and then ensure that the water-permeable brick of preparation is harmless, environmental protection；
4, invention is suitable for processing the various mud containing heavy metal ion, and this method not only versatility is good, and process conditions are simple,
Workable, more can accomplish scale production, be a kind for the treatment of of wastes with processes of wastes against one another, energy-saving and emission-reduction, innoxious and resource regeneration contain
The treatment technology of heavy metal sewage sludge.
The present invention, while heavy metal sewage sludge harmless treatment, extracts ferrite product and innoxious mud, Qian Zheke
As the Iron Ore Powder before radiation shielding coating additive or steel-refining, the latter can be used for the preparation of sponge urban construction water-permeable brick,
The water-permeable brick that comprcssive strength is high, water permeability is good and durable can be prepared, be suitable for the road surface in sponge urban construction
Lay.The present invention can dissolve heavy metal sewage sludge in a large number, and after extracting ferrite, innoxious mud is alternatively arranged as prepared by water-permeable brick
Main raw material(s), the useless rate of profit is high, it is achieved that the maximum resourceization of heavy metal sewage sludge utilizes.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As a example by processing East China automobile electroplating workshop heavy metal sewage sludge, it is further described implementing step, technique
Flow chart is as shown in Figure 1.
The first step: weigh 100Kg moisture content and be not less than the heavy metal sewage sludge of 60% in acidolysis groove, according to heavy metal sewage sludge
30% addition acid hydrolysis solution of volume, acid hydrolysis solution is with sulphuric acid: nitric acid: Fluohydric acid.: the preparation of the volume ratio of hydrogen peroxide=9:3:3:1 and
Become, adding procedure is sufficiently stirred for, makes heavy metal ion by Ore Leaching.
Second step: the mixed liquor in step one acidolysis groove is put into ultrasonic tank, carries out ultrasonic wavelength-division with the frequency of 15KHz
Solve, so that mud and acid hydrolysis solution are fully contacted and react.
3rd step: the mixed liquor after ultrasonic in step 2 is carried out solid-liquid separation, obtains pickle liquor and has acid hydrolysis solution to remain
Mud.
4th step: the mud clear water having acid hydrolysis solution to remain in step 3 is flushed three times, to slough the heavy metal of remnants,
Obtain innoxious mud.
5th step: all add rinsing the liquid after having acid hydrolysis solution residual mud in the pickle liquor in step 3 and step 4
Mixing in ferrite reaction tank, add ferrous sulfate, its quality added is in mixed liquor the 8 of all heavy metal quality
Times, mix homogeneously, and add hot liquid to 55 DEG C.Then, in reaction tank, NaOH it is slowly added to, when to system, pH value is 8.5,
It is passed through high-purity oxygen, fully generates after reaction and contain ferrum element and heavy metal ion at interior ferrite crystal；Finally will be raw
The ferrite crystal become is dried after separating with alkaline waste liquor, i.e. obtains ferrite, and alkaline waste liquor enters Waste Water Treatment and processes
Rear qualified discharge.
6th step: by innoxious mud isolated in step 4 and slag, common stone, flyash, quartz sand, water glass
Glass, Kaolin, bamboo powder and pore creating material mixing, wherein weight portion (Kg) is: innoxious mud is 40, common stone 20, slag 18,
Flyash 10, waterglass 15, quartz sand 10, Kaolin 5, bamboo powder 3, pore creating material 1.Add appropriate water, put in blender with
The speed of 130 revs/min stirs into pug, and controlling moisture content is 15%.
7th step: the pug mixed in step 6 is put into the dry-pressing formed machine that pressure is 30Mpa dry-pressing formed, pass through
Different moulds, can prepare the sponge urban construction water-permeable brick of difformity and size.
8th step: the adobe of the molding prepared in step 7 is passed through natural drying or puts into the freeze-day with constant temperature of 105 DEG C
Case is dried so that moisture content is 5%.
9th step: dried adobe in step 8 is sent in kiln and sinters, be warming up to 1050 with 3.5 DEG C/min speed
DEG C, continue to be down to room temperature after 3h, the most i.e. obtain that comprcssive strength is high, water permeability is good, the sponge urban construction of energy-conserving and environment-protective is used
Water-permeable brick.
After tested, the comprcssive strength of the sponge urban construction water-permeable brick of the present invention is 55MPa, coefficient of permeability 2.48 ×
102Cm/s, grinds anti-length and is not more than 35mm, and bending strength is that 52.5,25 freeze-thaw cycle comprcssive strength losses are less than 18%, its
His index all meets " water-permeable brick " (CJ/T945～2005) standard.
Embodiment 2
As a example by processing Electroplate Factory's heavy metal sewage sludge, it is further described implementing step.
The first step: weigh 100Kg moisture content and be not less than the heavy metal sewage sludge of 60% in acidolysis groove, according to heavy metal sewage sludge
40% addition acid hydrolysis solution of volume, acid hydrolysis solution is with sulphuric acid: nitric acid: Fluohydric acid.: the preparation of the volume ratio of hydrogen peroxide=9:3:3:1 and
Become, adding procedure is sufficiently stirred for, makes heavy metal ion by Ore Leaching.
Second step: the mixed liquor in step one acidolysis groove is put into ultrasonic tank, carries out ultrasonic wavelength-division with the frequency of 25KHz
Solve, so that mud and acid hydrolysis solution are fully contacted and react.
3rd step: the mixed liquor after ultrasonic in step 2 is carried out solid-liquid separation, obtains pickle liquor and has acid hydrolysis solution to remain
Mud.
4th step: the mud clear water having acid hydrolysis solution to remain in step 3 is rinsed five times, to slough the heavy metal of remnants,
Obtain innoxious mud.
5th step: the liquid after rinsing, in the pickle liquor in step 3 and step 4, the mud having acid hydrolysis solution to remain all adds
Entering in ferrite reaction tank and mix, add ferrous sulfate, its quality added is all heavy metal quality in mixed liquor
10 times, mix homogeneously, and add hot liquid to 60 DEG C.Then, in reaction tank, KOH it is slowly added to, when to system, pH value is 9,
It is passed through high-purity oxygen, fully generates after reaction and contain ferrum element and heavy metal ion at interior ferrite crystal；Finally will be raw
The ferrite crystal become is dried after separating with alkaline waste liquor, i.e. obtains ferrite, and alkaline waste liquor enters Waste Water Treatment and processes
Rear qualified discharge.
6th step: by innoxious mud isolated in step 4 and slag, flyash, quartz sand, waterglass and pore-creating
Agent mixes, and wherein weight portion (Kg) is: innoxious mud is 45, common stone 23, slag 15, flyash 8, waterglass 15, stone
Sand 10, Kaolin 8, bamboo powder 3, pore creating material 1.Add appropriate water, put in blender and stir into the speed of 130 revs/min
Pug, controlling moisture content is 16%.
7th step: the pug mixed in step 6 is put into the dry-pressing formed machine that pressure is 30Mpa dry-pressing formed, pass through
Different moulds, can prepare the sponge urban construction water-permeable brick of difformity and size.
8th step: the adobe of the molding prepared in step 7 is passed through natural drying or puts into the freeze-day with constant temperature of 105 DEG C
Case is dried so that moisture content is 5%.
9th step: dried adobe in step 8 is sent in kiln and sinters, be warming up to 1100 with 4 DEG C/min speed
DEG C, continue to be down to room temperature after 3h, the most i.e. obtain that comprcssive strength is high, water permeability is good, the sponge urban construction of energy-conserving and environment-protective is used
Water-permeable brick.
After tested, the comprcssive strength of the sponge urban construction water-permeable brick of the present invention is 60.5MPa, coefficient of permeability 2.2 ×
102Cm/s, grinds anti-length and is not more than 32mm, and bending strength is that 62.5,25 freeze-thaw cycle comprcssive strength losses are less than 16%, its
His index all meets " water-permeable brick " (CJ/T945～2005) standard.
Embodiment 3
As a example by processing printed circuit board (PCB) factory heavy metal sewage sludge, it is further described implementing step.
The first step: weigh 100Kg moisture content and be not less than the heavy metal sewage sludge of 60% in acidolysis groove, according to heavy metal sewage sludge
50% addition acid hydrolysis solution of volume, acid hydrolysis solution is with sulphuric acid: nitric acid: Fluohydric acid.: the preparation of the volume ratio of hydrogen peroxide=9:3:3:1 and
Become, adding procedure is sufficiently stirred for, makes heavy metal ion by Ore Leaching.
Second step: the mixed liquor in step one acidolysis groove is put into ultrasonic tank, carries out ultrasonic wavelength-division with the frequency of 30KHz
Solve, so that mud and acid hydrolysis solution are fully contacted and react.
3rd step: the mixed liquor after ultrasonic in step 2 is carried out solid-liquid separation, obtains pickle liquor and has acid hydrolysis solution to remain
Mud.
4th step: the clear water of the precipitate in step 3 is rinsed five times, to slough the heavy metal of remnants, obtains innoxious
Mud.
5th step: the liquid after rinsing precipitate in the pickle liquor in step 3 and step 4 all adds ferrite reaction
Mixing in pond, add ferrous sulfate, its quality added is in mixed liquor 12 times of all heavy metal quality, and mixing is all
Even, and add hot liquid to 65 DEG C.Then, in reaction tank, it is slowly added to NaOH, when pH value is 9 to system, is passed through high-purity
Generate after oxygen, fully reaction and contain ferrum element and heavy metal ion at interior ferrite crystal；The ferrite that finally will generate
Crystal is dried after separating with alkaline waste liquor, i.e. obtains ferrite, and alkaline waste liquor enters qualified discharge after Waste Water Treatment processes.
6th step: by innoxious mud isolated in step 4 and slag, flyash, quartz sand, waterglass and pore-creating
Agent mixes, and innoxious mud is 45, common stone 23, slag 18, flyash 10, waterglass 15, quartz sand 12, Kaolin 8,
Bamboo powder 4, pore creating material 3.Add appropriate water, put in blender and stir into pug with the speed of 130 revs/min, control moisture content
It is 18%.
Adding appropriate water, put in blender and stir into pug with the speed of 130 revs/min, controlling moisture content is 18%.
7th step: the pug mixed in step 6 is put into the dry-pressing formed machine that pressure is 30Mpa dry-pressing formed, pass through
Different moulds, can prepare the sponge urban construction water-permeable brick of difformity and size.
8th step: the adobe of the molding prepared in step 7 is passed through natural drying or puts into the freeze-day with constant temperature of 105 DEG C
Case is dried so that moisture content is 5%.
9th step: dried adobe in step 8 is sent in kiln and sinters, be warming up to 1150 with 4 DEG C/min speed
DEG C, continue to be down to room temperature after 3h, the most i.e. obtain that comprcssive strength is high, water permeability is good, the sponge urban construction of energy-conserving and environment-protective is used
Water-permeable brick.
After tested, the comprcssive strength of the sponge urban construction water-permeable brick of the present invention is 62MPa, coefficient of permeability 2.8 ×
102Cm/s, grinds anti-length and is not more than 28mm, and bending strength is that 56.0,25 freeze-thaw cycle comprcssive strength losses are less than 15%, its
His index all meets " water-permeable brick " (CJ/T945～2005) standard.
Embodiment 4
Embodiment 4 is similar with embodiment 1 step, sulphuric acid, nitric acid, Fluohydric acid. and hydrogen peroxide 8:2 by volume in acid hydrolysis solution:
2:1 prepares, and adds volume is heavy metal sewage sludge volume the 30% of acid hydrolysis solution；The frequency of oscillation of ultrasound wave is 15KHz, during vibration
Between be 1h；The number of times that clear water rinses is 3 times；The addition of ferrous sulfate is 8 times of heavy metal gross mass in liquid, adds hot liquid
Temperature is to 55 DEG C, and alkali liquor is NaOH, and the pH value of alkali liquor amount interpolation to liquid is 8.5；Innoxious mud, common stone, slag, powder
The weight part ratio of coal ash, waterglass, quartz sand, Kaolin, bamboo powder and pore creating material is: 40,20,15,8,12,10,5,3 and 1, mud
The moisture control of material is at 14wt%.Slag and quartz sand cross 10 mesh sieves, and the particle diameter of flyash is 0.1mm, and pore creating material is Margarita
Rock.The pressure of dry-pressing formed machine is 25Mpa.Drying baker is thermostatic drying chamber, and temperature is 103 DEG C, the moisture content of dried adobe
For 5wt%.It is warming up to 1020 DEG C with the speed of 3.5 DEG C/min during sintering, is persistently down to room temperature after sintering 2.5h.
After tested, " water-permeable brick " (CJ/T945～2005) standard is met.
Embodiment 5
Embodiment 5 is similar with embodiment 1 step, sulphuric acid, nitric acid, Fluohydric acid. and hydrogen peroxide 9:3 by volume in acid hydrolysis solution:
3:1 prepares, and adds volume is heavy metal sewage sludge volume the 35% of acid hydrolysis solution；The frequency of oscillation of ultrasound wave is 20KHz, during vibration
Between be 1.5h；The number of times that clear water rinses is 4 times；The addition of ferrous sulfate is 10 times of heavy metal gross mass in liquid, heating
Temperature of liquid is to 60 DEG C, and alkali liquor is KOH, and the pH value of alkali liquor amount interpolation to liquid is 9；Innoxious mud, common stone, slag,
The weight portion of flyash, waterglass, quartz sand, Kaolin, bamboo powder and pore creating material is: 43,22,16,9,13,11,7,4 and 2, mud
The moisture control of material is at 16wt%.Slag and quartz sand cross 10 mesh sieves, and the particle diameter of flyash is 0.12mm, and pore creating material is diatom
Soil.The pressure of dry-pressing formed machine is 30Mpa.Drying baker is thermostatic drying chamber, and temperature is 105 DEG C, the moisture content of dried adobe
For 4wt%.It is warming up to 1040 DEG C with the speed of 3.8 DEG C/min during sintering, is persistently down to room temperature after sintering 3h.
After tested, " water-permeable brick " (CJ/T945～2005) standard is met.
Embodiment 6
Embodiment 6 is similar with embodiment 1 step, sulphuric acid, nitric acid, Fluohydric acid. and hydrogen peroxide by volume 10 in acid hydrolysis solution:
4:4:1 prepares, and adds volume is heavy metal sewage sludge volume the 50% of acid hydrolysis solution；The frequency of oscillation of ultrasound wave is 30KHz, vibration
Time is 2h；The number of times that clear water rinses is 5 times；The addition of ferrous sulfate is 12 times of heavy metal gross mass in liquid, heating
Temperature of liquid is to 65 DEG C, and alkali liquor is NaOH, and the pH value of alkali liquor amount interpolation to liquid is 9；Innoxious mud, common stone, slag,
The weight portion of flyash, waterglass, quartz sand, Kaolin, bamboo powder and pore creating material is: 45,23,18,10,15,12,8,4 and 3,
The moisture control of pug is at 18wt%.Slag and quartz sand cross 10 mesh sieves, and the particle diameter of described flyash is 0.15mm, pore-creating
Agent is for boiling stone.The pressure of dry-pressing formed machine is 35Mpa.Drying baker is thermostatic drying chamber, and temperature is 108 DEG C, dried adobe
Moisture content position 5wt%.It is warming up to 1150 DEG C with the speed of 4.0 DEG C/min during sintering, is persistently down to room temperature after sintering 3.5h.
After tested, " water-permeable brick " (CJ/T945～2005) standard is met.
Claims (10)
1. one kind utilizes water-permeable brick prepared by innoxious mud, it is characterised in that include following components and weight portion content:
Innoxious mud 40-45, common stone 20-23, slag 15-18, flyash 8-10, waterglass 12-15, quartz sand 10-
12, Kaolin 5-8, bamboo powder 3-4 and pore creating material 1-3.
A kind of water-permeable brick utilizing innoxious mud to prepare the most according to claim 1, it is characterised in that described slag
10 mesh sieves are crossed, the particle diameter≤0.15mm of described flyash with quartz sand.
A kind of water-permeable brick utilizing innoxious mud to prepare the most according to claim 1, it is characterised in that described pore-creating
Agent is perlite, kieselguhr, rice husk or boils stone.
4. one kind utilizes the preparation method that innoxious mud prepares water-permeable brick as claimed in claim 1, it is characterised in that concrete
Comprise the following steps:
(1) adding acid hydrolysis solution stirring in heavy metal sewage sludge, make heavy metal ion and acid reaction be leached, in system, pH is adjusted to
During 2.2-3.2, acidolysis reaction terminates；
(2) mixed liquor of step (1) is carried out ultrasonic Treatment, make mud and acid hydrolysis solution be fully contacted and react；
(3) mixed liquor after ultrasonic in step (2) is carried out solid-liquid separation, obtain acid hydrolysis solution and the mud of residual acid hydrolysis solution；
(4) mud of residual acid hydrolysis solution in step (3) is rinsed with clear water, slough acid hydrolysis solution and the heavy metal of remnants, obtain
Innoxious mud；
(5) liquid produced after rinsing the mud of residual acid hydrolysis solution in the acid hydrolysis solution in step (3) and step (4) mixes
Closing, add ferrous sulfate, mix homogeneously also heats, adds alkali liquor, and be passed through oxygen, fully generates containing ferrum element after reaction
With the ferrite crystal of heavy metal ion, ferrite crystal separates with alkaline waste liquor, is dried, obtains ferrite, at alkaline waste liquor
Reason qualified discharge；
(6) the innoxious mud that step (4) is obtained and common stone, slag, flyash, waterglass, quartz sand, Kaolin,
Bamboo powder and pore creating material stir into pug after mixing by charge ratio, and control moisture content；
(7) pug of step (6) is put into dry-pressing formed machine dry-pressing formed, prepare difformity and the water-permeable brick adobe of size；
(8) the water-permeable brick adobe prepared in step (7) by natural drying or is put into drying baker is dried；
(9) adobe of step (8) dried water-permeable brick is sintered, i.e. obtain water-permeable brick.
The preparation method utilizing innoxious mud to prepare water-permeable brick the most according to claim 4, it is characterised in that step
(1) acid hydrolysis solution described in is the mixture of sulphuric acid, nitric acid, Fluohydric acid. and hydrogen peroxide, and sulphuric acid, nitric acid, Fluohydric acid. and hydrogen peroxide are pressed
Volume ratio 8-10:2-4:2-4:1 is prepared, and adds the 30-50% that volume is heavy metal sewage sludge volume of acid hydrolysis solution.
The preparation method utilizing innoxious mud to prepare water-permeable brick the most according to claim 4, it is characterised in that step
(2) frequency of oscillation of the ultrasound wave described in is 15-30KHz, and duration of oscillation is 1-2h, the number of times that step (4) described clear water rinses
For 3-5 time.
The preparation method utilizing innoxious mud to prepare water-permeable brick the most according to claim 4, it is characterised in that step
(5) addition of the ferrous sulfate described in is in liquid 8-12 times of heavy metal gross mass, heating temperature of liquid to 55-65 DEG C,
Described alkali liquor is NaOH or KOH, and the pH value of alkali liquor amount interpolation to liquid is 8.5-9.
The preparation method utilizing innoxious mud to prepare water-permeable brick the most according to claim 4, it is characterised in that step
(6) moisture control of described pug is 25-35Mpa at 14-18wt%, the pressure of the dry-pressing formed machine described in step (7).
The preparation method utilizing innoxious mud to prepare water-permeable brick the most according to claim 4, it is characterised in that step
(8) drying baker described in is thermostatic drying chamber, and temperature is 103-108 DEG C, and the moisture content of dried adobe is not more than 6wt%.
The preparation method utilizing innoxious mud to prepare water-permeable brick the most according to claim 4, it is characterised in that step
(9) it is warming up to 1020-1150 DEG C with the speed of 3.5-4.0 DEG C/min during sintering, is persistently down to room temperature after sintering 2.5-3.5h.
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| CN107879586A (en) * | 2017-10-18 | 2018-04-06 | 福建汇利丰环保科技有限公司 | The waste sludge recovery process of discarded Tetra Pak processing |
| CN108046831A (en) * | 2017-12-07 | 2018-05-18 | 广州市环境保护工程设计院有限公司 | A kind of multi-functional water-permeable brick and preparation method thereof |
| CN108275854A (en) * | 2018-01-22 | 2018-07-13 | 湖北工业大学 | Added with the alkaline residue base domestic sludge curing agent of high hydroscopic resin |
| CN108285323A (en) * | 2017-12-07 | 2018-07-17 | 广州市环境保护工程设计院有限公司 | A kind of water-permeable brick and preparation method thereof prepared using sludge |
| CN108585773A (en) * | 2018-05-16 | 2018-09-28 | 合肥慧林建材有限公司 | A kind of high intensity high water-permeability pavior brick and preparation method thereof |
| CN108863400A (en) * | 2018-06-21 | 2018-11-23 | 湖南双晟科技信息咨询有限公司 | A method of water-permeable brick is prepared using municipal sludge |
| CN109665798A (en) * | 2017-10-14 | 2019-04-23 | 梁秋云 | A kind of pavement water-permeable brick prepared using construction waste |
| CN109694234A (en) * | 2019-02-26 | 2019-04-30 | 北京建筑大学 | The method for preparing water-permeable brick using waterworks sludge |
| CN110272232A (en) * | 2018-03-16 | 2019-09-24 | 焦作诺尔曼炉业有限公司 | A kind of permeable building block in road surface of environmental protection and preparation method thereof |
| CN110304870A (en) * | 2019-08-12 | 2019-10-08 | 广东工业大学 | A kind of baking-free water-permeable brick and preparation method thereof |
| CN110395948A (en) * | 2019-07-31 | 2019-11-01 | 淮北市菲美得环保科技有限公司 | A kind of non-sintered water-permeable brick and preparation method thereof based on printing and dyeing sludge |
| CN110723961A (en) * | 2019-09-23 | 2020-01-24 | 广东莞绿环保工程有限公司 | Environment-friendly microporous brick prepared by comprehensively utilizing solid wastes and preparation method thereof |
| CN110885241A (en) * | 2018-09-07 | 2020-03-17 | 何钢 | Mullite-structure ceramic porous water storage material and preparation method thereof |
| CN113332965A (en) * | 2021-07-12 | 2021-09-03 | 新疆大学 | Magnetic fly ash @ PDMS sponge material for oil-water separation and preparation method thereof |
| CN113336460A (en) * | 2021-06-28 | 2021-09-03 | 武汉理工大学 | Functional aggregate for radiation-proof concrete and preparation method thereof |
| CN114772883A (en) * | 2022-05-16 | 2022-07-22 | 中国矿业大学 | Treatment method of black and odorous water body bottom mud and application of black and odorous water body bottom mud in preparation of baking-free bricks |
| CN115536426A (en) * | 2022-10-14 | 2022-12-30 | 宝武环科(湛江)资源循环利用有限公司 | Ecological water-permeable sintered brick taking all-solid waste as raw material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040238A (en) * | 2010-11-11 | 2011-05-04 | 上海集惠环保科技发展有限公司 | Recycling method for treating sludge containing heavy metals |
| CN105330324A (en) * | 2015-10-29 | 2016-02-17 | 合肥正拓装饰材料有限公司 | Water-permeable brick adding with steel slags for road surfacing |
-
2016
- 2016-08-12 CN CN201610663310.0A patent/CN106278373B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040238A (en) * | 2010-11-11 | 2011-05-04 | 上海集惠环保科技发展有限公司 | Recycling method for treating sludge containing heavy metals |
| CN105330324A (en) * | 2015-10-29 | 2016-02-17 | 合肥正拓装饰材料有限公司 | Water-permeable brick adding with steel slags for road surfacing |
Non-Patent Citations (3)
| Title |
|---|
| 伏小勇等: "城市污泥中重金属消解方法的比较试验研究", 《中国给水排水》 * |
| 王亚平等: "制革污泥中铬的提取及测定方法对比研究", 《中国皮革》 * |
| 谢敏等: "利用给水厂污泥制备透水砖的实验研究", 《环境工程学报》 * |
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| CN106631122A (en) * | 2017-01-06 | 2017-05-10 | 李珠 | Sintered fly ash-expanded perlite water-permeable brick and preparation method thereof |
| CN109665798A (en) * | 2017-10-14 | 2019-04-23 | 梁秋云 | A kind of pavement water-permeable brick prepared using construction waste |
| CN107879586A (en) * | 2017-10-18 | 2018-04-06 | 福建汇利丰环保科技有限公司 | The waste sludge recovery process of discarded Tetra Pak processing |
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| CN110885241A (en) * | 2018-09-07 | 2020-03-17 | 何钢 | Mullite-structure ceramic porous water storage material and preparation method thereof |
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| CN110304870A (en) * | 2019-08-12 | 2019-10-08 | 广东工业大学 | A kind of baking-free water-permeable brick and preparation method thereof |
| CN110723961A (en) * | 2019-09-23 | 2020-01-24 | 广东莞绿环保工程有限公司 | Environment-friendly microporous brick prepared by comprehensively utilizing solid wastes and preparation method thereof |
| CN113336460A (en) * | 2021-06-28 | 2021-09-03 | 武汉理工大学 | Functional aggregate for radiation-proof concrete and preparation method thereof |
| CN113332965A (en) * | 2021-07-12 | 2021-09-03 | 新疆大学 | Magnetic fly ash @ PDMS sponge material for oil-water separation and preparation method thereof |
| CN114772883A (en) * | 2022-05-16 | 2022-07-22 | 中国矿业大学 | Treatment method of black and odorous water body bottom mud and application of black and odorous water body bottom mud in preparation of baking-free bricks |
| CN114772883B (en) * | 2022-05-16 | 2023-09-05 | 中国矿业大学 | Treatment method of black and odorous water body substrate sludge and application of black and odorous water body substrate sludge in preparation of baking-free bricks |
| CN115536426A (en) * | 2022-10-14 | 2022-12-30 | 宝武环科(湛江)资源循环利用有限公司 | Ecological water-permeable sintered brick taking all-solid waste as raw material and preparation method thereof |
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