Method for removing organic matters in dyeing and finishing sludge and method for synthesizing inorganic polymeric material

The hydrothermal method removes organic matter in the dyeing and finishing sludge and converts it into inorganic polymer materials, solving the problem of organic matter treatment in the textile industry, achieving efficient low temperature removal and resource reuse, and reducing environmental and health risks.

CN119118468APending Publication Date: 2024-12-13TAIWAN PAIHO LTD
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Patent Information

Application Number
CN202310949253.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-06-13
Filing Date
2023-07-31
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

The problem of organic matter treatment in dyeing and finishing sludge generated in the textile industry. The existing high-temperature incineration methods consume high energy and cost, and pose a threat to the environment and human health.

Method used

The hydrothermal method is used to remove organic matter in the dyeing and finishing sludge. Through drying, crushing and hydrothermal steps, combined with sodium hydroxide catalyst, hydrothermal reaction is carried out under low temperature conditions to remove organic matter, and the removed sludge and cemented material are combined. Mix and synthesize inorganic polymeric materials.

Benefits of technology

It realizes efficient removal of organic matter in the dyeing and finishing sludge without energy consumption at low temperatures and converts them into cement building materials for construction, reducing environmental pollution and production costs, and achieving effective utilization of dyeing and finishing sludge.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a method for removing organic matters in dyeing and finishing sludge and a method for synthesizing an inorganic polymeric material. The method for removing the organic matters in the dyeing and finishing sludge comprises a drying step, a crushing step and a hydrothermal step. In the drying step, moisture of the dyeing and finishing sludge is removed at the drying temperature, so that dried dyeing and finishing sludge is obtained. In the crushing step, the dried dyeing and finishing sludge is crushed to form a plurality of dyeing and finishing sludge fragments. In the hydrothermal step, after a catalyst is added into the dyeing and finishing sludge fragments, a hydrothermal reaction is carried out at the hydrothermal temperature, and the retention time is maintained, so that organic matters in the dyeing and finishing sludge are removed. Therefore, organic matters in the dyeing and finishing sludge are removed at a relatively low temperature through a hydrothermal method, and the organic matters are used for synthesizing an inorganic polymeric material, so that the aim of recycling the dyeing and finishing sludge is fulfilled.
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Description

Technical Field

[0001] The present invention relates to a method for removing organic matter from dyeing and finishing sludge, in particular to a method for removing organic matter from dyeing and finishing sludge by hydrothermal method, the dyeing and finishing sludge with organic matter removed prepared by the method, a method for synthesizing inorganic polymeric materials and the inorganic polymeric materials prepared by the method. Background Art

[0002] In the textile industry, after various fibers are made into fabrics, they need to be printed and dyed to make them beautiful and practical. However, a large amount of dyeing and finishing sludge is easily generated, and the dyeing and finishing sludge contains chemical organic residues. If not handled properly, the harm to the environment and the risk to human health are increasing. At present, the organic matter in textile dyeing and finishing sludge can be removed by high temperature of 1000℃, but its water content is high, and the removal of organic matter by high-temperature incineration has the disadvantages of high energy consumption and high cost.

[0003] In view of this, how to effectively remove organic matter from dyeing and finishing sludge and achieve the purpose of recycling dyeing and finishing sludge without consuming energy has become the goal of relevant industries. Summary of the invention

[0004] An object of the present invention is to provide a method for removing organic matter from dyeing and finishing sludge and the dyeing and finishing sludge prepared by the method, which uses a hydrothermal method to remove organic matter from the dyeing and finishing sludge at a relatively low temperature, and adjusts the condition parameters to achieve a better organic matter removal rate without energy consumption and low cost.

[0005] Another object of the present invention is to provide a method for synthesizing an inorganic polymer material and the inorganic polymer material prepared therefrom, wherein the inorganic polymer material is obtained by removing organic matter from waste dyeing and finishing sludge and mixing it with a binder, and the synthesized inorganic polymer material can be used as a cement building material for construction.

[0006] One embodiment of the present invention provides a method for removing organic matter from dyeing and finishing sludge, comprising a drying step, a crushing step, and a hydrothermal step. The drying step is to remove water from the dyeing and finishing sludge at a drying temperature to obtain dried dyeing and finishing sludge. The crushing step is to crush the dried dyeing and finishing sludge to form a plurality of dyeing and finishing sludge fragments. The hydrothermal step is to add a catalyst to the dyeing and finishing sludge fragments, perform a hydrothermal reaction at a hydrothermal temperature and maintain a residence time to remove organic matter from the dyeing and finishing sludge.

[0007] According to the method for removing organic matter from dyeing and finishing sludge as described in the preceding paragraph, the drying temperature may be 100°C to 130°C.

[0008] According to the method for removing organic matter from dyeing and finishing sludge as described in the preceding paragraph, the dyeing and finishing sludge fragments can pass through a sieve with a mesh number of 10 to 100.

[0009] According to the method for removing organic matter from dyeing and finishing sludge as described in the preceding paragraph, the catalyst may be sodium hydroxide.

[0010] According to the method for removing organic matter from dyeing and finishing sludge described in the preceding paragraph, the concentration of the catalyst may be 5M to 9M.

[0011] According to the method for removing organic matter from dyeing and finishing sludge as described in the previous paragraph, the addition ratio of dyeing and finishing sludge fragments to catalyst can be 1:2 g / mL to 1:8 g / mL.

[0012] According to the method for removing organic matter from dyeing and finishing sludge as described in the preceding paragraph, the hydrothermal temperature may be 200°C to 280°C.

[0013] According to the method for removing organic matter from dyeing and finishing sludge described in the preceding paragraph, the residence time can be 10 minutes to 60 minutes.

[0014] Another embodiment of the present invention provides a dyeing and finishing sludge with organic matter removed, which is prepared by the above-mentioned method for removing organic matter from dyeing and finishing sludge.

[0015] Another embodiment of the present invention provides a method for synthesizing an inorganic polymer material, comprising a mixing step, an adding step, and a molding step. The mixing step is to mix the hearthstone powder with the coal fly ash to form a first mixture. The adding step is to add the dyeing and finishing sludge from which organic matter has been removed as described above to the first mixture to form a second mixture. The molding step is to mold the second mixture into a mold, perform a curing treatment, and obtain the inorganic polymer material after demolding.

[0016] According to the method for synthesizing inorganic polymer materials described in the preceding paragraph, the weight ratio of the hearthstone powder to the coal fly ash can be 70:30.

[0017] According to the method for synthesizing inorganic polymer materials described in the preceding paragraph, the amount of dyeing and finishing sludge from which organic matter is removed can be 40 wt % to 60 wt %.

[0018] Another embodiment of the present invention provides an inorganic polymer material, which is prepared by the above method for synthesizing an inorganic polymer material.

[0019] According to the inorganic polymer material described in the previous paragraph, the compressive strength of the inorganic polymer material may be 15 MPa to 30 MPa.

[0020] The present invention utilizes the hydrothermal method to remove organic matter from dyeing and finishing sludge at low temperature without consuming energy, and applies the dyeing and finishing sludge after removing organic matter to the synthesis of inorganic polymer materials to obtain cement building materials for construction, thereby achieving effective utilization of dyeing and finishing sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the following are the descriptions of the accompanying drawings:

[0022] Figure 1 The present invention is a flowchart showing a method for removing organic matter from dyeing and finishing sludge according to an embodiment of the present invention.

[0023] Figure 2 FIG. 4 is a flow chart showing the steps of a method for synthesizing an inorganic polymer material according to another embodiment of the present invention.

[0024] Figure 3 The figure shows the result of organic matter removal rate of Experimental Examples 1 to 5.

[0025] Figure 4 The figure shows the result of organic matter removal rate of Experimental Examples 5 to 9.

[0026] Figure 5 The figure shows the result of organic matter removal rate of Test Examples 8, 10 to 12.

[0027] Figure 6 The figure shows the result of organic matter removal rate of Test Examples 8 and 13 to 15.

[0028] Figure 7 The figure shows the result of organic matter removal rate of Experimental Examples 15 to 18.

[0029] Figure 8 The compressive strength diagram of Examples 1 to 3 under different curing days is shown.

[0030]

Main component symbol description

[0031] 100: Method for removing organic matter from dyeing and finishing sludge

[0032] 200: Method for synthesizing inorganic polymeric materials

[0033] 110,120,130,210,220,230: Steps DETAILED DESCRIPTION

[0034] The following will discuss various embodiments of the present invention in more detail. However, this embodiment can be an application of various inventive concepts and can be specifically implemented in various specific scopes. The specific embodiments are for illustrative purposes only and are not limited to the scope of the disclosure.

[0035] <Methods for removing organic matter from dyeing and finishing sludge>

[0036] Please refer to Figure 1, which is a flowchart showing the steps of a method 100 for removing organic matter from dyeing and finishing sludge according to one embodiment of the present invention. Figure 1 In the method 100 for removing organic matter from dyeing and finishing sludge, the method 100 includes step 110, step 120 and step 130.

[0037] Step 110 is a drying step, which is to remove moisture from the dyeing and finishing sludge at a drying temperature to obtain dried dyeing and finishing sludge, wherein the drying temperature may be 100° C. to 130° C.

[0038] Step 120 is a crushing step, which is to crush the dried dyeing and finishing sludge to form a plurality of dyeing and finishing sludge fragments. Specifically, in order to improve the subsequent reaction efficiency, the particle size of the dried dyeing and finishing sludge needs to be reduced, so the dried dyeing and finishing sludge is ground and crushed by a crusher, and the crushed dyeing and finishing sludge fragments need to pass through a sieve with a mesh size of 10 (2 mm) to 100 (0.149 mm) to achieve the purpose of reducing the particle size of the dyeing and finishing sludge.

[0039] Step 130 is a hydrothermal step, which is to add a catalyst to the dyeing and finishing sludge fragments, perform a hydrothermal reaction at a hydrothermal temperature and maintain a residence time to remove organic matter in the dyeing and finishing sludge. In detail, the hydrothermal method is a wet chemical method for converting carbon compounds in a closed container, and the reaction temperature range of the hydrothermal method is mostly between the boiling point and the critical point of water (374°C), which is lower than the incineration method, so the organic matter in the dyeing and finishing sludge can be removed by subcritical water with decomposition ability.

[0040] In addition, the method 100 of removing organic matter from dyeing and finishing sludge of the present invention may have different organic matter removal rates due to the influence of the catalyst type, catalyst concentration, the addition ratio of dyeing and finishing sludge fragments to catalyst (solid-liquid ratio), hydrothermal temperature and residence time. Specifically, the catalyst selected by the present invention may be sodium hydroxide, the catalyst concentration may be 5M to 9M, the addition ratio of dyeing and finishing sludge fragments to catalyst may be 1:2g / mL to 1:8g / mL, the hydrothermal temperature may be 200°C to 280°C, the residence time may be 10 minutes to 60 minutes, and the above-mentioned condition parameters may enable the dyeing and finishing sludge after the hydrothermal reaction to achieve a better organic matter removal rate.

[0041] Accordingly, the present invention further provides a dyeing and finishing sludge with organic matter removed, which is prepared by the aforementioned method 100 for removing organic matter from dyeing and finishing sludge. The organic matter in the dyeing and finishing sludge can be removed by a hydrothermal method at a relatively low temperature and without the need for additional high-temperature sintering to consume a large amount of energy. The dyeing and finishing sludge with organic matter removed of the present invention can be used as a raw material for the synthesis of subsequent inorganic polymer materials, thereby achieving effective utilization of waste dyeing and finishing sludge.

[0042] <Method for synthesizing inorganic polymer material>

[0043] Please refer to Figure 2 , which is a flow chart showing the steps of a method 200 for synthesizing an inorganic polymer material according to another embodiment of the present invention. Figure 2 In the method 200 for synthesizing an inorganic polymer material, the method 200 includes steps 210 , 220 , and 230 .

[0044] Step 210 is a mixing step, which is to mix the hearthstone powder and the coal fly ash to form a first mixture, wherein the weight ratio of the hearthstone powder to the coal fly ash can be 70:30.

[0045] Step 220 is an adding step, which is to add the aforementioned dyeing and finishing sludge with organic matter removed to the first mixture to form a second mixture, wherein the added amount of the dyeing and finishing sludge with organic matter removed can be 40wt% to 60wt%.

[0046] Step 230 is a molding step, which is to mold the second mixture into a mold and perform a curing treatment. After demolding, the inorganic polymer material is obtained. The shape of the mold is not limited, so the inorganic polymer material can be made into any shape as needed.

[0047] Accordingly, the present invention further provides an inorganic polymer material, which is prepared according to the aforementioned method 200 for synthesizing an inorganic polymer material. Specifically, the present invention uses the dyeing and finishing sludge obtained by the aforementioned method 100 for removing organic matter from dyeing and finishing sludge to synthesize an inorganic polymer material, and the compressive strength of the synthesized inorganic polymer material can be 15MPa to 30MPa, reaching the compressive strength standard of building material concrete. Therefore, the inorganic polymer material synthesized by the present invention can be directly used as concrete. Compared with traditional cement concrete, in addition to having economic value, it can also take into account the effect of reducing greenhouse gas emissions and slowing down global warming.

[0048] The present invention is further illustrated by the following specific examples, which are used to facilitate those skilled in the art to which the present invention belongs, so that they can fully utilize and practice the present invention without excessive interpretation. These examples should not be regarded as limiting the scope of the present invention, but are used to illustrate how to implement the materials and methods of the present invention.

[0049] <Test example>

[0050] <Removal of organic matter from dyeing and finishing sludge>

[0051] In the test examples 1 to 18 of the present invention, the dyeing and finishing sludge is placed in an oven at a constant temperature of 105°C for 12 hours to remove the residual moisture, and the dyeing and finishing sludge after the moisture is removed is ground and pulverized by a small crusher so that the pulverized dyeing and finishing sludge fragments all pass through a 100-mesh screen. Then, the dyeing and finishing sludge fragments and the catalyst are added to the hydrothermal tank and locked therein, and then the hydrothermal tank is placed in a high-temperature furnace and maintained at the hydrothermal temperature for a period of time to perform a hydrothermal reaction. Finally, the dyeing and finishing sludge after the hydrothermal reaction is subjected to the organic matter content measurement to evaluate the organic matter removal rate obtained by the test examples of various test conditions and test parameters.

[0052] <Influence of Catalyst Type>

[0053] In Experimental Examples 1 to 5 of the present invention, dyeing and finishing sludge fragments were subjected to hydrothermal reaction with different types of catalysts to evaluate the effect of the catalyst type on the removal of organic matter in the dyeing and finishing sludge. The catalyst type, catalyst concentration, solid-liquid ratio (the addition ratio of dyeing and finishing sludge fragments to catalyst), hydrothermal temperature and residence time used in Experimental Examples 1 to 5 are shown in Table 1 below.

[0054]

[0055] See also Figure 3 , which is a graph showing the organic matter removal rate results of Experimental Examples 1 to 5. Figure 3 It can be seen from the results that the organic matter removal rates of Test Examples 1 to 4 using water, ethanol, hydrogen peroxide and potassium carbonate as catalysts for hydrothermal reaction did not reach 50%, while the organic matter removal rate of Test Example 5 using strong base sodium hydroxide as catalyst for hydrothermal reaction could reach 58.5%. Therefore, the present invention selects sodium hydroxide as the best catalyst type for subsequent tests.

[0056] <Influence of Catalyst Concentration>

[0057] In Experimental Examples 5 to 9 of the present invention, dyeing and finishing sludge fragments were subjected to hydrothermal reaction with sodium hydroxide of different concentrations as catalysts to evaluate the effect of catalyst concentration on the removal of organic matter in dyeing and finishing sludge. The catalyst type, catalyst concentration, solid-liquid ratio (addition ratio of dyeing and finishing sludge fragments to catalyst), hydrothermal temperature and residence time used in Experimental Examples 5 to 9 are shown in Table 2 below.

[0058]

[0059] See also Figure 4 , which is a graph showing the organic matter removal rate results of Experimental Examples 5 to 9. Figure 4It can be seen from the results that the removal rate of organic matter in dyeing and finishing sludge increases with the increase of sodium hydroxide concentration, and the organic matter removal rate is positively correlated with the catalyst concentration. In Test Examples 8 and 9, in which sodium hydroxide with a concentration of 7M and 9M is used as a catalyst for hydrothermal reaction, the organic matter removal rates can reach more than 95%, and the difference between the two is only 1%. Therefore, the present invention selects 7M as the optimal catalyst concentration for subsequent tests.

[0060] <Influence of Solid-Liquid Ratio>

[0061] In Test Examples 8, 10 and 12 of the present invention, dyeing and finishing sludge fragments (solid) and sodium hydroxide (liquid) were mixed in different proportions for hydrothermal reaction to evaluate the effect of the solid-liquid ratio on the removal of organic matter in the dyeing and finishing sludge. The catalyst type, catalyst concentration, solid-liquid ratio (addition ratio of dyeing and finishing sludge fragments to catalyst), hydrothermal temperature and residence time used in Test Examples 8, 10 and 12 are shown in Table 3 below.

[0062]

[0063] See also Figure 5 , which is a graph showing the organic matter removal rate results of Test Examples 8, 10 to 12. Figure 5 The results show that the removal rate of organic matter in dyeing and finishing sludge increases with the increase of solid-liquid ratio, and the organic matter removal rate is positively correlated with the solid-liquid ratio. In Test Examples 8, 11 and 12, which use a solid-liquid ratio of 1:2 g / mL or more for hydrothermal reaction, the organic matter removal rates can reach more than 90%, and the organic matter removal rate of Test Example 8 with a solid-liquid ratio of 1:4 g / mL has reached the maximum value. On the other hand, the increase of the solid-liquid ratio will lead to an increase in the removal cost of organic matter in dyeing and finishing sludge, so the present invention selects 1:4 g / mL as the optimal solid-liquid ratio for subsequent tests.

[0064] <Influence of hydrothermal temperature>

[0065] In Test Examples 8, 13 and 15 of the present invention, dyeing and finishing sludge fragments were subjected to hydrothermal reaction with sodium hydroxide at different hydrothermal temperatures to evaluate the effect of hydrothermal temperature on the removal of organic matter in dyeing and finishing sludge. The catalyst type, catalyst concentration, solid-liquid ratio (addition ratio of dyeing and finishing sludge fragments to catalyst), hydrothermal temperature and residence time used in Test Examples 8, 13 and 15 are shown in Table 4 below.

[0066]

[0067] See also Figure 6 , which is a graph showing the organic matter removal rate results of Test Examples 8, 13 to 15. Figure 6 The results show that the removal rate of organic matter in dyeing and finishing sludge increases with the increase of hydrothermal temperature, and the organic matter removal rate is positively correlated with the hydrothermal temperature. In Test Examples 8 and 15, where the hydrothermal reaction is carried out at a hydrothermal temperature of more than 200°C, the organic matter removal rate can reach more than 90%. On the other hand, since the increase of hydrothermal temperature will lead to increased energy consumption, and the small amount of organic matter remaining in the dyeing and finishing sludge will not cause the subsequent synthetic material to be insufficient in strength, the present invention selects 210°C with lower energy consumption as the optimal hydrothermal temperature for subsequent testing.

[0068] <Influence of residence time>

[0069] In Experimental Examples 15 to 18 of the present invention, dyeing and finishing sludge fragments were subjected to hydrothermal reaction with sodium hydroxide and maintained at different residence times to evaluate the effect of residence time on the removal of organic matter in dyeing and finishing sludge. The catalyst type, catalyst concentration, solid-liquid ratio (addition ratio of dyeing and finishing sludge fragments to catalyst), hydrothermal temperature and residence time used in Experimental Examples 15 to 18 are shown in Table 5 below.

[0070]

[0071]

[0072] See also Figure 7 , which is a graph showing the organic matter removal rate results of Experimental Examples 15 to 18. Figure 7 The results show that the removal rate of organic matter in dyeing and finishing sludge increases with the increase of residence time, and the organic matter removal rate is positively correlated with the residence time. The organic matter removal rates of Test Examples 15, 17 and 18, which have a residence time of more than 30 minutes, can all reach about 89%. On the other hand, although the removal rate of organic matter in dyeing and finishing sludge reaches the maximum value when the residence time is 30 minutes, in order to ensure the complete hydrothermal reaction, the present invention selects 45 minutes as the optimal residence time.

[0073] According to the above test examples, the present invention preferably selects Test Example 18 as the best test conditions and test parameters. Specifically, the present invention adds 3 grams of dyeing and finishing sludge fragments and 12 mL of 7M sodium hydroxide (solid-liquid ratio of 1:4 g / mL) to a hydrothermal tank and locks it therein, and then places the hydrothermal tank in a high-temperature furnace to perform a hydrothermal reaction at a hydrothermal temperature of 210°C and a residence time of 45 minutes to remove organic matter from the dyeing and finishing sludge, and the organic matter content is measured, and the organic matter removal rate of Test Example 18 can reach 89.9%, and the dyeing and finishing sludge after the organic matter is removed is used to synthesize subsequent inorganic polymer materials.

[0074] <Example>

[0075] <Synthetic Inorganic Polymer Materials>

[0076] In Examples 1 to 3 of the present invention, hearthstone powder and coal fly ash are mixed in a weight ratio of 70:30 and premixed as a binder for 3 minutes, and then the dyeing and finishing sludge with organic matter removed prepared in Test Example 18 is added and mixed for 5 minutes to form a uniform slurry, and then the slurry is molded into a cylindrical mold and cured, and demolded after curing for 3 days to obtain an inorganic polymer material, and a compressive strength test is performed after curing for 28 days. Specifically, the addition amount of the dyeing and finishing sludge with organic matter removed in Examples 1 to 3 is 40wt%, 50wt% and 60wt%, respectively.

[0077] See also Figure 8 , which is a graph showing the compressive strength of Examples 1 to 3 at different curing days. Figure 8 The results show that when the curing period is 3 days, the compressive strengths of Examples 1 to 3 are all about 7MPa, so the amount of dyeing and finishing sludge added to remove organic matter has little effect on the compressive strength of the synthesized inorganic polymer material. However, as the curing period increases, the amount of dyeing and finishing sludge added to remove organic matter has a greater effect on the compressive strength of the synthesized inorganic polymer material, and when the curing period is 28 days, the compressive strengths of Examples 1 to 3 are 27.7MPa, 20.8MPa, and 18.1MPa, respectively. Therefore, when the amount of dyeing and finishing sludge added to remove organic matter is more, the compressive strength of the inorganic polymer material is lower.

[0078] In summary, the present invention utilizes a hydrothermal method to remove organic matter from dyeing and finishing sludge, and adjusts the conditions and parameters of the hydrothermal reaction to achieve a better organic matter removal rate without consuming energy and at a low cost. Then, the dyeing and finishing sludge after the organic matter is removed is synthesized into an inorganic polymer material, and its compressive strength can reach 27.7MPa, which is beneficial as a cement building material for construction, has economic benefits and can reduce greenhouse gas emissions, thereby achieving effective utilization of waste dyeing and finishing sludge.

[0079] Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A method for removing organic matter from dyeing and finishing sludge, characterized in that: Include: Performing a drying step, which is to remove moisture from the dyeing and finishing sludge at a drying temperature to obtain dry dyeing and finishing sludge; A crushing step is performed, which is to crush the dried dyeing and finishing sludge to form a plurality of dyeing and finishing sludge fragments; as well as The hydrothermal step is to add a catalyst to the plurality of dyeing and finishing sludge fragments, and then perform a hydrothermal reaction at a hydrothermal temperature and maintain a retention time to remove organic matter in the dyeing and finishing sludge.

2. The method for removing organic matter from dyeing and finishing sludge according to claim 1, characterized in that: The drying temperature is 100°C to 130°C.

3. The method for removing organic matter from dyeing and finishing sludge according to claim 1, characterized in that: The plurality of dyeing and finishing sludge fragments pass through a sieve with a mesh number of 10 to 100.

4. The method for removing organic matter from dyeing and finishing sludge according to claim 1, characterized in that: The catalyst is sodium hydroxide.

5. The method for removing organic matter from dyeing and finishing sludge according to claim 1, characterized in that: The concentration of the catalyst is 5M to 9M.

6. The method for removing organic matter from dyeing and finishing sludge according to claim 1, characterized in that: The addition ratio of the plurality of dyeing and finishing sludge fragments to the catalyst is 1:2 g / mL to 1:8 g / mL.

7. The method for removing organic matter from dyeing and finishing sludge according to claim 1, characterized in that: The hydrothermal temperature is 200°C to 280°C.

8. The method for removing organic matter from dyeing and finishing sludge according to claim 1, characterized in that: The residence time is between 10 minutes and 60 minutes.

9. A dyeing and finishing sludge for removing organic matter, characterized in that: The product is prepared by the method for removing organic matter from dyeing and finishing sludge as claimed in claim 1.

10. A method for synthesizing an inorganic polymer material, characterized in that: Include: performing a mixing step of mixing hearthstone powder with coal fly ash to form a first mixture; performing an adding step, which is to add the dyeing and finishing sludge with organic matter removed as claimed in claim 9 to the first mixture to form a second mixture; and The step of casting is to cast the second mixture into a mold, and perform curing treatment, and then demould to obtain an inorganic polymer material.

11. The method for synthesizing an inorganic polymer material according to claim 10, characterized in that: The weight ratio of the hearthstone powder to the coal-fired fly ash is 70:

30.

12. The method for synthesizing an inorganic polymer material according to claim 10, characterized in that: The amount of dyeing and finishing sludge from which organic matter is removed is 40 wt % to 60 wt %.

13. An inorganic polymer material, characterized in that: The inorganic polymer material is prepared by the method for synthesizing inorganic polymer material as claimed in claim 10.

14. The inorganic polymer material according to claim 13, characterized in that The compressive strength of the inorganic polymer material is 15 MPa to 30 MPa.

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