CN114105538A - Process for preparing water permeable brick from potash feldspar ore slag and residual active sludge - Google Patents
Process for preparing water permeable brick from potash feldspar ore slag and residual active sludge Download PDFInfo
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- CN114105538A CN114105538A CN202111447915.3A CN202111447915A CN114105538A CN 114105538 A CN114105538 A CN 114105538A CN 202111447915 A CN202111447915 A CN 202111447915A CN 114105538 A CN114105538 A CN 114105538A
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- Prior art keywords
- water permeable
- activated sludge
- permeable brick
- residual
- potash feldspar
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- 239000010802 sludge Substances 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000011449 brick Substances 0.000 title claims abstract description 45
- 239000010433 feldspar Substances 0.000 title claims abstract description 35
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 title claims abstract description 33
- 229940072033 potash Drugs 0.000 title claims abstract description 33
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 title claims abstract description 33
- 235000015320 potassium carbonate Nutrition 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000002893 slag Substances 0.000 title claims abstract description 22
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004927 clay Substances 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 18
- 230000000996 additive effect Effects 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 230000018044 dehydration Effects 0.000 claims abstract description 6
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000007493 shaping process Methods 0.000 claims abstract description 6
- 239000012257 stirred material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 239000012744 reinforcing agent Substances 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 4
- 244000005700 microbiome Species 0.000 description 9
- 238000010304 firing Methods 0.000 description 4
- 239000003623 enhancer Substances 0.000 description 3
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 229910052652 orthoclase Inorganic materials 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- -1 comprise orthoclase Chemical class 0.000 description 1
- 229910052647 feldspar group Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052651 microcline Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002699 waste material 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a process for preparing a water permeable brick from potash feldspar slag and residual active sludge, which comprises the following steps: after the residual activated sludge is dehydrated by using dehydration equipment, mixing the residual activated sludge with clay; extruding and granulating the mixed residual activated sludge and clay by using a pair-roller granulator, and rounding and screening by using shaping and screening equipment; placing the screened particles into a rotary kiln for preheating; after preheating, sintering to obtain ceramsite taking residual activated sludge as main raw material; on the basis of selecting the potassium feldspar aggregate and the ceramsite, further selecting a proper amount of cement, an additive and water, and putting the selected materials into a stirrer together for stirring; pouring the stirred material into a mold for manufacturing the water permeable brick, vibrating, curing and solidifying to obtain the water permeable brick. The invention realizes the reasonable and effective utilization of the potash feldspar slag and the residual activated sludge, and the permeable brick which is favorable for use is manufactured, thereby being favorable for popularization.
Description
Technical Field
The invention relates to the technical field of waste utilization, in particular to a process for manufacturing a water permeable brick from potash feldspar slag and residual active sludge.
Background
The potash feldspar is aluminosilicate mineral of alkali metal or alkaline earth metal such as potassium, sodium, calcium, etc., and is also called feldspar group mineral. Potash feldspar (K2O. Al2O 3. 6SiO2), also commonly called orthoclase, is generally in the monoclinic system, and is generally reddish in flesh, white or gray in color. The potassium feldspar series mainly comprise orthoclase, microcline feldspar, and permeant feldspar; the residual activated sludge refers to activated sludge discharged from a secondary sedimentation tank (or a sedimentation zone) in an activated sludge system, and mainly comprises four parts, namely active microorganisms, microorganism autooxidation residues, undegradable or difficultly degradable organic matters and inorganic matters attached to the surface of the activated sludge. The main components of the microorganism are living microorganisms, which include bacteria, fungi, protozoa, metazoan and other famous microorganisms.
The existing harmless treatment mode aiming at the excess activated sludge has the defects of high cost and difficult treatment, so in order to realize reasonable treatment and utilization of the excess activated sludge and combine the colors presented by the potash feldspar slag, a process for preparing the water permeable brick by the potash feldspar slag and the excess activated sludge is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a process for preparing a water permeable brick from potash feldspar slag and residual active sludge.
In order to achieve the purpose, the invention adopts the following technical scheme:
a process for preparing a water permeable brick from potash feldspar slag and residual active sludge comprises the following steps:
s1: putting the potash feldspar slag into a crusher to be crushed to obtain potash feldspar aggregate;
s2: after the residual activated sludge is dehydrated by using dehydration equipment, mixing the residual activated sludge with clay;
s3: extruding and granulating the mixed residual activated sludge and clay by using a pair-roller granulator, and rounding and screening by using shaping and screening equipment;
s4, putting the particles screened in the step S3 into a rotary kiln for preheating at 320-380 ℃ for 20-30 minutes;
s5: after preheating is finished, sintering at 1040-;
s6: on the basis of selecting the potassium feldspar aggregate obtained in the step S1 and the ceramsite obtained in the step S5, further selecting a proper amount of cement, an additive and water, and putting the selected materials into a stirrer together for stirring;
s7: and after stirring is finished, pouring the stirred material into a mold for manufacturing the water permeable brick, vibrating, curing and solidifying to obtain the water permeable brick.
Preferably, in step S1, the particle size of the potassium feldspar aggregate is in the range of 1-2 cm.
Preferably, in step S2, the water content of the dewatered excess activated sludge is 30-40%.
Preferably, in step S2, the blending ratio of the excess activated sludge to the clay is 50-80: 100.
preferably, in the step S6, the weight ratio of the cement, the additive, the water, the potassium feldspar aggregate and the ceramsite is 1:0.025-0.030:0.40-0.45: 1.5-2: 1.5-1.8.
Preferably, in step S6, the additive is a concrete reinforcing agent.
The process for preparing the water permeable brick from the potash feldspar slag and the residual active sludge has the beneficial effects that: in the application process of the technical scheme, after the residual activated sludge is simply dehydrated, the sludge is combined with clay to be fired into the ceramsite, so that in the firing process, the firing treatment and elimination of microorganisms, microorganism self-oxidation residues and organic matters in the residual activated sludge can be realized, and the moisture in the residual activated sludge can be evaporated, so that the ceramsite is further in a porous state, and the integral density of the ceramsite is reduced; in the process of further mixing the potassium feldspar aggregate, the ceramsite, the cement, the additive and the water and manufacturing the water permeable brick, the potassium feldspar aggregate and the ceramsite can replace stones (aggregates) required by the water permeable brick manufactured by traditional concrete, the density of the ceramsite is small, the density of the manufactured water permeable brick can be reduced, the water permeable brick manufactured by the scheme under the same volume is lighter, the exposed potassium feldspar surface can also increase the integral attractiveness of the water permeable brick, and therefore the manufactured water permeable brick is favorable for use; under the condition that the prepared water permeable brick is favorable for use, the potash feldspar slag and the residual activated sludge are reasonably and effectively utilized in the manufacturing process of the water permeable brick, and further the popularization is favorable.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
A process for preparing a water permeable brick from potash feldspar slag and residual active sludge comprises the following steps:
s1: putting the potash feldspar slag into a crusher to be crushed to obtain potash feldspar aggregate;
s2: after the residual activated sludge is dehydrated by using dehydration equipment, mixing the residual activated sludge with clay;
s3: extruding and granulating the mixed residual activated sludge and clay by using a pair-roller granulator, and rounding and screening by using shaping and screening equipment;
s4, putting the particles screened in the step S3 into a rotary kiln, and preheating at 320 ℃ for 20 minutes;
s5: after preheating is finished, sintering at 1040 ℃, wherein the sintering process lasts for 15 minutes, and after sintering is finished, ceramsite taking residual activated sludge as a main raw material is obtained;
s6: on the basis of selecting the potassium feldspar aggregate obtained in the step S1 and the ceramsite obtained in the step S5, further selecting a proper amount of cement, an additive and water, and putting the selected materials into a stirrer together for stirring;
s7: and after stirring is finished, pouring the stirred material into a mold for manufacturing the water permeable brick, vibrating, curing and solidifying to obtain the water permeable brick.
In step S1, the particle size range of the potassium feldspar aggregate is 1 cm.
In step S2, the water content of the dewatered excess activated sludge is 30%.
In step S2, the blending ratio of the excess activated sludge to the clay is 50: 100.
in step S6, the weight ratio of cement, additive, water, potash feldspar aggregate, and ceramsite is 1:0.025:0.40: 1.5: 1.5.
in step S6, the additive is a concrete enhancer.
Example 2
A process for preparing a water permeable brick from potash feldspar slag and residual active sludge comprises the following steps:
s1: putting the potash feldspar slag into a crusher to be crushed to obtain potash feldspar aggregate;
s2: after the residual activated sludge is dehydrated by using dehydration equipment, mixing the residual activated sludge with clay;
s3: extruding and granulating the mixed residual activated sludge and clay by using a pair-roller granulator, and rounding and screening by using shaping and screening equipment;
s4, putting the particles screened in the step S3 into a rotary kiln, and preheating at 350 ℃ for 25 minutes;
s5: after preheating is finished, sintering at 1060 ℃, wherein the sintering process lasts for 18 minutes, and after sintering is finished, ceramsite taking residual activated sludge as a main raw material is obtained;
s6: on the basis of selecting the potassium feldspar aggregate obtained in the step S1 and the ceramsite obtained in the step S5, further selecting a proper amount of cement, an additive and water, and putting the selected materials into a stirrer together for stirring;
s7: and after stirring is finished, pouring the stirred material into a mold for manufacturing the water permeable brick, vibrating, curing and solidifying to obtain the water permeable brick.
In step S1, the particle size range of the potassium feldspar aggregate is 1.5 cm.
In step S2, the water content of the dewatered excess activated sludge is 35%.
In step S2, the blending ratio of the excess activated sludge to the clay is 65: 100.
in step S6, the weight ratio of cement, additive, water, potassium feldspar aggregate, and ceramsite is 1:0.028:0.43: 1.7: 1.6.
in step S6, the additive is a concrete enhancer.
Example 3
A process for preparing a water permeable brick from potash feldspar slag and residual active sludge comprises the following steps:
s1: putting the potash feldspar slag into a crusher to be crushed to obtain potash feldspar aggregate;
s2: after the residual activated sludge is dehydrated by using dehydration equipment, mixing the residual activated sludge with clay;
s3: extruding and granulating the mixed residual activated sludge and clay by using a pair-roller granulator, and rounding and screening by using shaping and screening equipment;
s4, putting the particles screened in the step S3 into a rotary kiln, and preheating at 380 ℃ for 30 minutes;
s5: after preheating is finished, sintering at 1080 ℃, wherein the sintering process lasts for 20 minutes, and after sintering is finished, ceramsite taking residual activated sludge as a main raw material is obtained;
s6: on the basis of selecting the potassium feldspar aggregate obtained in the step S1 and the ceramsite obtained in the step S5, further selecting a proper amount of cement, an additive and water, and putting the selected materials into a stirrer together for stirring;
s7: and after stirring is finished, pouring the stirred material into a mold for manufacturing the water permeable brick, vibrating, curing and solidifying to obtain the water permeable brick.
In step S1, the particle size range of the potassium feldspar aggregate is 2 cm.
In step S2, the water content of the dewatered excess activated sludge is 40%.
In step S2, the blending ratio of the excess activated sludge to the clay is 80: 100.
in step S6, the weight ratio of cement, additive, water, potash feldspar aggregate, and ceramsite is 1:0.030:0.45: 2: 1.8.
in step S6, the additive is a concrete enhancer.
In summary, the following steps: in the application process, after the residual activated sludge is simply dehydrated, the sludge is combined with clay to be fired into the ceramsite, so that in the firing process, the firing treatment and elimination of microorganisms, self-oxidation residues of the microorganisms and organic matters in the residual activated sludge can be realized, and the moisture in the residual activated sludge can be evaporated, so that the ceramsite is further in a porous state, and the integral density of the ceramsite is reduced; in the process of further mixing the potassium feldspar aggregate, the ceramsite, the cement, the additive and the water and manufacturing the water permeable brick, the potassium feldspar aggregate and the ceramsite can replace stones (aggregates) required by the water permeable brick manufactured by traditional concrete, the density of the ceramsite is small, the density of the manufactured water permeable brick can be reduced, the water permeable brick manufactured by the scheme under the same volume is lighter, the exposed potassium feldspar surface can also increase the integral attractiveness of the water permeable brick, and therefore the manufactured water permeable brick is favorable for use; under the condition that the prepared water permeable brick is favorable for use, the potash feldspar slag and the residual activated sludge are reasonably and effectively utilized in the manufacturing process of the water permeable brick, and further the popularization is favorable.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A process for preparing a water permeable brick from potash feldspar slag and residual active sludge is characterized by comprising the following steps:
s1: putting the potash feldspar slag into a crusher to be crushed to obtain potash feldspar aggregate;
s2: after the residual activated sludge is dehydrated by using dehydration equipment, mixing the residual activated sludge with clay;
s3: extruding and granulating the mixed residual activated sludge and clay by using a pair-roller granulator, and rounding and screening by using shaping and screening equipment;
s4, putting the particles screened in the step S3 into a rotary kiln for preheating at 320-380 ℃ for 20-30 minutes;
s5: after preheating is finished, sintering at 1040-;
s6: on the basis of selecting the potassium feldspar aggregate obtained in the step S1 and the ceramsite obtained in the step S5, further selecting a proper amount of cement, an additive and water, and putting the selected materials into a stirrer together for stirring;
s7: and after stirring is finished, pouring the stirred material into a mold for manufacturing the water permeable brick, vibrating, curing and solidifying to obtain the water permeable brick.
2. The process of manufacturing water permeable bricks according to claim 1, wherein in step S1, the particle size of potash feldspar aggregate is in the range of 1-2 cm.
3. The process of manufacturing the water permeable brick according to claim 1, wherein in step S2, the water content of the dehydrated residual activated sludge is 30-40%.
4. The process of claim 1, wherein in step S2, the blending ratio of the excess activated sludge to the clay is 50-80: 100.
5. the process for preparing the water permeable brick from the potash feldspar slag and the residual active sludge according to claim 1, wherein in the step S6, the weight ratio of the cement, the additive, the water, the potash feldspar aggregate and the ceramsite is 1:0.025-0.030:0.40-0.45: 1.5-2: 1.5-1.8.
6. The process of manufacturing water permeable bricks according to claim 1, wherein in step S6, the additive is a concrete reinforcing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447915.3A CN114105538A (en) | 2021-11-30 | 2021-11-30 | Process for preparing water permeable brick from potash feldspar ore slag and residual active sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447915.3A CN114105538A (en) | 2021-11-30 | 2021-11-30 | Process for preparing water permeable brick from potash feldspar ore slag and residual active sludge |
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| CN114105538A true CN114105538A (en) | 2022-03-01 |
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| CN202111447915.3A Pending CN114105538A (en) | 2021-11-30 | 2021-11-30 | Process for preparing water permeable brick from potash feldspar ore slag and residual active sludge |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012055808A (en) * | 2010-09-07 | 2012-03-22 | Daihachi Kameoka | Method of using surplus sludge |
| CN108793852A (en) * | 2018-08-29 | 2018-11-13 | 云南中洲海绵城市建材有限公司 | A kind of mine steel slag ecological permeable pavement brick production technology |
| CN111335108A (en) * | 2020-03-17 | 2020-06-26 | 安庆仁创聚源生态环保科技有限公司 | Ecological water-permeable pavement brick and production process thereof |
| CN113149694A (en) * | 2021-06-09 | 2021-07-23 | 广东绿友环保科技有限公司 | Method for preparing high-strength ceramic tile from activated sludge |
-
2021
- 2021-11-30 CN CN202111447915.3A patent/CN114105538A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012055808A (en) * | 2010-09-07 | 2012-03-22 | Daihachi Kameoka | Method of using surplus sludge |
| CN108793852A (en) * | 2018-08-29 | 2018-11-13 | 云南中洲海绵城市建材有限公司 | A kind of mine steel slag ecological permeable pavement brick production technology |
| CN111335108A (en) * | 2020-03-17 | 2020-06-26 | 安庆仁创聚源生态环保科技有限公司 | Ecological water-permeable pavement brick and production process thereof |
| CN113149694A (en) * | 2021-06-09 | 2021-07-23 | 广东绿友环保科技有限公司 | Method for preparing high-strength ceramic tile from activated sludge |
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Application publication date: 20220301 |