CN117816120A - Method for preparing zeolite adsorbent from sludge incineration ash - Google Patents
Method for preparing zeolite adsorbent from sludge incineration ash Download PDFInfo
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- CN117816120A CN117816120A CN202410037829.2A CN202410037829A CN117816120A CN 117816120 A CN117816120 A CN 117816120A CN 202410037829 A CN202410037829 A CN 202410037829A CN 117816120 A CN117816120 A CN 117816120A
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- incineration ash
- sludge incineration
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- 239000010802 sludge Substances 0.000 title claims abstract description 86
- 239000010457 zeolite Substances 0.000 title claims abstract description 68
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 65
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 239000003463 adsorbent Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 13
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000002386 leaching Methods 0.000 claims abstract description 12
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 238000005470 impregnation Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000010335 hydrothermal treatment Methods 0.000 claims abstract description 3
- 238000012216 screening Methods 0.000 claims abstract description 3
- 238000000967 suction filtration Methods 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 239000007790 solid phase Substances 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000003760 magnetic stirring Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000012265 solid product Substances 0.000 abstract 4
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910001603 clinoptilolite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052675 erionite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000783 metal toxicity Toxicity 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention provides a method for preparing zeolite adsorbent by using sludge incineration ash, which comprises the following steps: a) Putting the sludge incineration ash into a beaker, adding a proper amount of acid leaching solution, magnetically stirring at room temperature to wash out a small amount of heavy metal in the sludge incineration ash, leaching for at least 4 hours, separating the sludge incineration ash from a heavy metal-containing solution through vacuum suction filtration, washing the leached sludge incineration ash with pure water for at least 2 times, and then putting the sludge incineration ash into a baking oven for baking; b) Placing the dried sludge incineration ash into a beaker, adding a proper amount of pure water and sodium silicate for ultrasonic impregnation for 2 hours, pouring the impregnated solid-liquid mixture into a hydrothermal reaction kettle, placing the hydrothermal reaction kettle into a microwave emitter, setting the microwave hydrothermal temperature and duration, and carrying out microwave hydrothermal treatment on the solid-liquid mixture; c) After the microwave hydrothermal reaction, cooling to room temperature, carrying out solid-liquid separation on the solid product to obtain a solid product, drying the solid product in an oven, grinding and screening the solid product to obtain the final zeolite adsorbent.
Description
Technical Field
The invention relates to the technical field of zeolite adsorbent preparation methods, in particular to a method for preparing zeolite adsorbent from sludge incineration ash.
Background
Zeolites are more common in nature and are an aqueous alkali or alkaline earth aluminosilicate mineral, with about 40 types of natural zeolites such as analcite, clinoptilolite, erionite, etc. being currently found. The zeolite itself has adsorptivity, can effectively reduce Total Organic Carbon (TOC), metal cations and the like in wastewater through an adsorption function, and has potential of being applied to the field of wastewater treatment. Natural zeolite has complex components and cannot meet the social production requirements, so the technology of artificially synthesizing zeolite is focused on.
The sludge incineration is to completely burn organic matters in the sludge to achieve the effects of volume reduction rate and weight reduction, and waste heat generated by the incineration can be used for drying the sludge, so that the sludge incineration is regarded as an efficient and thorough disposal means. The ash produced by incineration is rich in SiO 2 、Al 2 O 3 、Fe 2 O 3 MgO, caO and small amounts of heavy metals, wherein SiO 2 、Al 2 O 3 The method is used as the most important artificial synthesis raw material of zeolite, and the highest proportion of the zeolite in the sludge incineration ash, so that the method for preparing the zeolite adsorption material by using the sludge incineration ash has important significance, and can realize high-value recycling of solid waste resources. In the prior art, most of generated sludge incineration ash is buried, so that land occupation and resource waste are caused.
The main method for zeolite synthesis is a hydrothermal method, wherein sludge incineration ash undergoes a series of synthesis reactions in a high-temperature high-pressure reaction kettle, however, quartz crystals in the sludge incineration ash are not easy to dissolve in the hydrothermal process, so that the hydrothermal synthesis time is too long, and the yield is low, so that the preparation of zeolite by the traditional hydrothermal method is limited. The aluminum flocculant is added in the sludge treatment process in a sludge factory, so that the silicon-aluminum element ratio in the sludge incineration ash is reduced, the silicon-aluminum element is low, zeolite is not easy to generate, the silicon-aluminum element utilization rate in the ash is reduced, the quality of the synthesized zeolite is reduced, and even zeolite cannot be formed. Thus, there are a number of problems associated with the current preparation of zeolites from sludge incineration ash.
Disclosure of Invention
The invention provides a method for preparing zeolite adsorbent by using sludge incineration ash, which is used for solving the defects in the prior art.
The invention provides a method for preparing zeolite adsorbent by using sludge incineration ash, which comprises the following steps:
a) Putting the sludge incineration ash into a beaker, adding a proper amount of acid leaching solution, magnetically stirring at room temperature to wash out a small amount of heavy metal in the sludge incineration ash, leaching for at least 4 hours, separating the sludge incineration ash from a heavy metal-containing solution through vacuum suction filtration, washing the leached sludge incineration ash with pure water for at least 2 times, and then putting the sludge incineration ash into a baking oven for baking;
b) Placing the dried sludge incineration ash into a beaker, adding a proper amount of pure water and sodium silicate for ultrasonic impregnation for 2 hours, pouring the impregnated solid-liquid mixture into a hydrothermal reaction kettle, sealing the hydrothermal reaction kettle, placing the hydrothermal reaction kettle into a microwave emitter, setting the microwave hydrothermal temperature and duration, and carrying out microwave hydrothermal treatment on the solid-liquid mixture;
c) After the microwave hydrothermal reaction, cooling to room temperature, taking out a solid-liquid mixture, carrying out solid-liquid separation on the solid-liquid mixture to obtain a solid-phase product, drying the solid-phase product in a drying oven, grinding and screening to obtain a final zeolite adsorbent, putting the final zeolite adsorbent into simulated wastewater, and separating solid and liquid after the adsorption is completed.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, in the step A), dilute sulfuric acid with the concentration of 0.1-0.5M is selected as the acid leaching liquid.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, the rotating speed of magnetic stirring in the step A) is 600rpm, and the leaching time is not less than 4 hours.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, the temperature of the oven in the A) is not higher than 105 ℃, and the drying time is not longer than 24 hours.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, the sludge incineration ash and the sodium silicate additive in the step B) are mixed in a mass ratio of 1:1-3:1.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, the microwave hydrothermal reaction temperature in the step B) is between 150 ℃ and 200 ℃ and the duration is at least 1h.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, the microwave hydrothermal product in the step C) is ground and then passes through a 120-mesh sieve, and then is put into a vacuum drying oven for preservation.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, the microwave hydrothermal product in the step C) is mainly analcite.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, in the step C), the COD of the simulated wastewater is 10mg/L-150mg/L and the TOC is 10mg/L-150mg/L, and the zeolite adsorbent reacts with the simulated wastewater for not less than 6 hours.
According to the method for preparing the zeolite adsorbent by using the sludge incineration ash, the temperature of the oven in the step C) is not higher than 105 ℃, and the drying time is not longer than 24 hours.
According to the method for preparing the zeolite adsorbent from the sludge incineration ash, the sludge incineration ash is subjected to acid washing, and partial heavy metal in the sludge incineration ash is leached, so that a stable and reliable adsorbent precursor is obtained; the zeolite is prepared by the sludge incineration ash and sodium silicate under the microwave hydrothermal condition, the original silicon-aluminum ratio in the sludge incineration ash is changed by adding the sodium silicate, the formation of zeolite crystals is promoted by adopting microwave hydrothermal, the traditional hydrothermal reaction time is shortened, the zeolite synthesis rate is improved, and a foundation is laid for adsorbing and purifying wastewater. The zeolite adsorbent prepared by the invention can fully utilize the characteristic of rich silicon-aluminum elements in the sludge incineration ash, and simultaneously provides a better solution idea for recycling the sludge incineration ash by adopting a means of treating waste with waste.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a zeolite adsorbent preparation provided in an embodiment of the present invention;
FIG. 2 is a graph showing the effect of various simulated wastewater contents (TOCs) on zeolite adsorbent adsorption capacity provided by an embodiment of the present invention;
FIG. 3 is a graph showing the effect of different simulated wastewater Contents (COD) on the adsorption amount of zeolite adsorbents according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The preparation method of the zeolite adsorbent prepared from the sludge incineration ash comprises the following steps:
a) Weighing 2g of sludge incineration ash, placing the sludge incineration ash into a beaker, adding 100ml of 0.1M,0.2M,0.3M and 0.5M dilute sulfuric acid, covering the beaker with a plastic film, leaching under the magnetic rotation speed of 600rpm, stirring for 6 hours, performing vacuum filtration to perform solid-liquid separation, placing the solid phase after washing with pure water into a baking oven, and drying at 105 ℃ for 24 hours;
b) Putting the dried sludge incineration ash into a beaker, adding 20ml of pure water, adding sodium silicate, wherein the mass ratio of the sludge incineration ash to the sodium silicate is 2:1 and 1:1, then carrying out ultrasonic impregnation for 2 hours, then pouring the solid-liquid mixture into a hydrothermal reaction kettle, sealing the reaction kettle, then putting the reaction kettle into a microwave emitter, and carrying out synthesis reaction at 150-200 ℃ for 1 hour and 2 hours;
c) After the microwave hydrothermal reaction, cooling to room temperature and opening a reaction kettle, drying a solid phase product obtained after solid-liquid separation for 24 hours at 105 ℃, grinding and sieving with 120 meshes to obtain a final zeolite adsorbent, and placing the final zeolite adsorbent into a vacuum drying oven for preservation;
d) According to detection, the hydrothermal reaction of the sludge incineration ash and sodium silicate can generate analcite, and the following table 1 illustrates the hydrothermal synthesis of the zeolite adsorbent by the sludge incineration ash, and as can be seen from the table 1, the mass ratio of the sludge incineration ash to the sodium silicate is 1:1 and 1:2 when the reaction temperature is higher than 180 ℃, and the reaction time is over 1h, the reaction can be conducive to the generation of the analcite.
TABLE 1 hydrothermal synthesis of sludge incineration ash zeolite adsorbent case
Example 2
The influence of different dilute sulfuric acid concentrations on leaching of heavy metals from sludge incineration ash is explored, and the method comprises the following steps:
a) Preparing 0.1M,0.2M,0.3M and 0.5M dilute sulfuric acid solutions, and respectively placing 100mL of dilute sulfuric acid into different centrifuge tubes;
b) Adding 2g of sludge incineration ash into the centrifuge tube in the step A), and setting three parallel samples under each adding amount;
c) The centrifuge tube was placed in a shaker and shaken at 200rpm for 6 hours.
As is known from heavy metal detection, only one heavy metal of arsenic in the sludge incineration ash exceeds the standard, reaches 0.12ppm, and is slightly higher than GB16889.
Example 3
The influence of the adding amount of the zeolite adsorbent on the TOC removal rate of the simulated wastewater is explored, and the method comprises the following steps:
a) Preparing 100mg/L TOC solution, and placing 40mL into a centrifuge tube;
b) Weighing the zeolite adsorbent prepared in the example 1, putting 10mg, 20mg, 50mg and 100mg into a centrifuge tube A), and setting three parallel samples at each dosage;
c) The centrifuge tube was placed in a shaker and shaken at 200rpm for 6 hours.
As is clear from FIG. 2, the TOC remaining amount and the removal rate in the solution were 2mg/L and 98% respectively, when the zeolite adsorbent addition amount was 100 mg.
Example 4
The influence of the adding amount of the zeolite adsorbent on the COD removal rate of the simulated wastewater is explored, and the method comprises the following steps:
a) Preparing a solution of COD of 100mg/L, and placing 40mL into a centrifuge tube;
b) Weighing the zeolite adsorbent prepared in the example 1, putting 10mg, 20mg, 50mg and 100mg into a centrifuge tube A), and setting three parallel samples at each dosage;
c) The centrifuge tube was placed in a shaker and shaken at 200rpm for 6 hours.
As is clear from FIG. 3, the amount of the zeolite adsorbent added was 100mg, and the COD remaining amount and the removal rate in the solution were 1.5mg/L and 98.5%, respectively.
In summary, the invention selects the sludge incineration ash as the raw material of the zeolite adsorbent, and aims to utilize abundant silicon-aluminum resources in the sludge incineration ash; the silicon-aluminum ratio is changed by adding sodium silicate, the hydrothermal condition is improved, and the capability of the sludge incineration ash for forming analcite is improved; the method provided by the invention has the advantages that the heavy metal in the sludge incineration ash is leached, the stability of the sludge incineration ash serving as an adsorption material precursor is improved, and the influence of heavy metal toxicity in the adsorption process is reduced; the zeolite adsorbent prepared by the sludge incineration ash can adsorb COD and TOC in wastewater, so that the purification of water is realized, the problem of environmental pollution caused by sludge incineration ash disposal after sludge incineration can be solved, and the recycling of the sludge incineration ash is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for preparing zeolite adsorbent by using sludge incineration ash, which is characterized by comprising the following steps:
a) Putting the sludge incineration ash into a beaker, adding a proper amount of acid leaching solution, magnetically stirring at room temperature to wash out a small amount of heavy metal in the sludge incineration ash, leaching for at least 4 hours, separating the sludge incineration ash from a heavy metal-containing solution through vacuum suction filtration, washing the leached sludge incineration ash with pure water for at least 2 times, and then putting the sludge incineration ash into a baking oven for baking;
b) Placing the dried sludge incineration ash into a beaker, adding a proper amount of pure water and sodium silicate for ultrasonic impregnation for 2 hours, pouring the impregnated solid-liquid mixture into a hydrothermal reaction kettle, sealing the hydrothermal reaction kettle, placing the hydrothermal reaction kettle into a microwave emitter, setting the microwave hydrothermal temperature and duration, and carrying out microwave hydrothermal treatment on the solid-liquid mixture;
c) After the microwave hydrothermal reaction, cooling to room temperature, taking out a solid-liquid mixture, carrying out solid-liquid separation on the solid-liquid mixture to obtain a solid-phase product, drying the solid-phase product in a drying oven, grinding and screening to obtain a final zeolite adsorbent, putting the final zeolite adsorbent into simulated wastewater, and separating solid and liquid after the adsorption is completed.
2. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the acid leaching solution in the step a) is 0.1M to 0.5M of dilute sulfuric acid.
3. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the rotation speed of the magnetic stirring in the step a) is 600rpm, and the leaching time is not less than 4 hours.
4. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the oven temperature in a) is not higher than 105 ℃ and the drying time is not longer than 24 hours.
5. The method for preparing zeolite adsorbent by using the sludge incineration ash according to claim 1, wherein the sludge incineration ash and the sodium silicate additive are mixed in the mass ratio of 1:1-3:1 in the step B).
6. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the microwave hydrothermal reaction temperature in step B) is between 150 ℃ and 200 ℃ for at least 1 hour.
7. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the microwave hydrothermal product in the step C) is ground and then passes through a 120 mesh sieve, and then is put into a vacuum drying oven for preservation.
8. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the microwave hydrothermal product in the step C) is mainly analcite.
9. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the COD of the simulated waste water in the step C) is 10mg/L-150mg/L and TOC is 10mg/L-150mg/L, and the zeolite adsorbent reacts with the simulated waste liquid for not less than 6 hours.
10. The method for preparing zeolite adsorbent from sludge incineration ash according to claim 1, wherein the oven temperature in the step C) is not higher than 105 ℃ and the drying time is not longer than 24 hours.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076212A (en) * | 2016-06-22 | 2016-11-09 | 河北大学 | A kind of technique utilizing waterworks sludge to prepare hydrogel zeolite and the application of hydrogel zeolite |
| CN106077031A (en) * | 2016-06-22 | 2016-11-09 | 浙江大学 | A kind of method of disposal that microwave-hydrothermal method is applied to domestic garbage incineration flyash |
| CN106745027A (en) * | 2016-11-30 | 2017-05-31 | 天津大学 | A kind of flyash synthesizes the method for analcime |
| CN109200996A (en) * | 2018-09-03 | 2019-01-15 | 中成未来新材料（福建）有限公司 | A kind of preparation method of artificial zeolite's adsorbent material for sewage treatment |
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2024
- 2024-01-10 CN CN202410037829.2A patent/CN117816120A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076212A (en) * | 2016-06-22 | 2016-11-09 | 河北大学 | A kind of technique utilizing waterworks sludge to prepare hydrogel zeolite and the application of hydrogel zeolite |
| CN106077031A (en) * | 2016-06-22 | 2016-11-09 | 浙江大学 | A kind of method of disposal that microwave-hydrothermal method is applied to domestic garbage incineration flyash |
| CN106745027A (en) * | 2016-11-30 | 2017-05-31 | 天津大学 | A kind of flyash synthesizes the method for analcime |
| CN109200996A (en) * | 2018-09-03 | 2019-01-15 | 中成未来新材料（福建）有限公司 | A kind of preparation method of artificial zeolite's adsorbent material for sewage treatment |
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