A water treatment composition and a method for its preparation

Abstract

The application discloses a water treatment composition, which comprises the following raw materials: a composite microbial agent, a mineral bentonite agent and a complex modification agent; wherein the mass ratio of the composite microbial agent, the mineral bentonite agent and the complex modification agent is (4-7):(5-10):2. The water treatment composition adopts the composite microbial agent, the mineral bentonite agent and the complex modification agent, the composite microbial agent is bacillus subtilis and lactic acid bacteria which are cultured by a nutrient solution, and the composite microbial agent is convenient for cleaning and removing pollutants such as CO2 and ammonia nitrogen in water.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment composition, in particular to a water treatment composition and a preparation method thereof. BACKGROUND

[0002] The biological solid purifying agent is mainly used in lakes, reservoirs, ponds, rivers (fast or slow flow), streams, swimming pools, domestic sewage treatment tanks, farm dams, livestock water troughs, circulating water systems, etc. The existing water treatment composition uses microbial agents for treatment, but the treatment composition has poor COD treatment efficiency in water, and in order to improve the COD removal rate, it is easy to cause the ammonia nitrogen and nitrite removal rate to decrease, and it is difficult to achieve the coordinated removal effect of COD, ammonia nitrogen and nitrite. Based on this, the performance of the product is further explored and treated. SUMMARY

[0003] In view of the defects of the prior art, the present application aims to provide a water treatment composition and a preparation method thereof to solve the problems raised in the background art.

[0004] The technical problem solved by the present application adopts the following technical scheme:

[0005] The present application provides a water treatment composition, which comprises the following raw materials: a composite microbial agent, a mineral bentonite agent and a complex modification agent; wherein the mass ratio of the composite microbial agent, the mineral bentonite agent and the complex modification agent is (4-7):(5-10):2.

[0006] The preparation method of the composite microbial agent is as follows:

[0007] The bacillus subtilis and lactic acid bacteria are mixed in a weight ratio of 3:2, then cultured in sufficient nutrient solution for 2-3 days, and the culture temperature is 38-42℃. After the culture is completed, the composite microbial agent is obtained.

[0008] The preparation method of the nutrient solution is as follows: 1-2 parts by weight of sodium chloride, 1-3 parts by weight of amino acid, 1-3 parts by weight of magnesium sulfate, 1-3 parts by weight of ammonium sulfate, 1-3 parts by weight of zinc sulfate and 1-2 parts by weight of vitamin B, 2-5 parts by weight of glucose are added to 10-15 parts by weight of water and fully blended to obtain the nutrient solution.

[0009] Preferably, the mass ratio of the composite microbial agent, the mineral bentonite agent and the complex modification agent is 5.5:7.5:2.

[0010] Preferably, the preparation method of the mineral bentonite agent is as follows:

[0011] S01: the bentonite is mixed with sufficient amount of 5% hydrochloric acid solution, then washed with water, dried, and then the dried bentonite is treated at 260-280℃ for 15-25min, cooled to 145-155℃ at a rate of 2-5℃ / min, and kept for 5-10min, and finally air-cooled to room temperature;

[0012] S02: 2-5 parts by weight of glass fiber, 1-3 parts by weight of lanthanum nitrate solution and 4-7 parts by weight of sodium silicate solution are mixed, and finally 1-2 parts by weight of sodium citrate is added and mixed well to obtain a glass fiber conditioner;

[0013] S03: the glass fiber conditioner and the bentonite of S01 are mixed and ball milled at a weight ratio of 3:7, then washed with water and dried to obtain a mineral bentonite agent.

[0014] Preferably, the mass fraction of the lanthanum nitrate solution is 3-5%, and the mass fraction of the sodium silicate solution is 10-15%.

[0015] Preferably, the ball milling speed of the ball milling is 1000-1500r / min, and the ball milling time is 1-2h.

[0016] Preferably, the preparation method of the complex conditioner is as follows:

[0017] S101: the hydroxyapatite is first immersed in a sodium lignosulfonate solution with 3-5 times the amount of the hydroxyapatite, and then the immersion is completed to obtain a hydroxyapatite immersion agent;

[0018] 4-7 parts by weight of 5% chitosan solution, 2-5 parts by weight of aluminum borate whisker, 1-3 parts by weight of stearic acid and 3-5 parts by weight of silane coupling agent are mixed to obtain a chitosan modifier;

[0019] S102: the hydroxyapatite immersion agent and the chitosan modifier are modified by stirring at a weight ratio of 2:5, then washed with water and dried to obtain the complex conditioner.

[0020] Preferably, the mass fraction of the sodium lignosulfonate solution is 10-15%.

[0021] Preferably, the immersion pressure of the immersion treatment is 10-15MPa, and the immersion time is 20-30min; the stirring speed of the stirring modification is 450-550r / min, and the stirring time is 20-30min.

[0022] Preferably, the silane coupling agent is silane coupling agent KH560.

[0023] The application also provides a preparation method of the water treatment composition, comprising the following steps: sufficiently blending the composite microbial agent, the mineral bentonite agent and the complex modification agent to obtain the water treatment composition.

[0024] Compared with the prior art, the application has the following beneficial effects:

[0025] The application for the water treatment composition adopts the composite microbial agent, the mineral bentonite agent and the complex modification agent. The composite microbial agent adopts Bacillus subtilis and lactic acid bacteria cultured in a nutrient solution, which is convenient for cleaning and removing the pollutants such as COD and ammonia nitrogen in water. The mineral bentonite agent adopts bentonite mixed in a sufficient amount of mass fraction 5% hydrochloric acid solution, then washed with water, dried, and then heat treated at 260-280℃ for 15-25min. After the treatment, the bentonite is cooled to 145-155℃ at a rate of 2-5℃ / min, and then kept warm for 5-10min. Finally, the bentonite is air cooled to room temperature. The activity of the bentonite is optimized, the interlayer spacing of the bentonite sheet is improved, and the adsorption efficiency of COD, ammonia nitrogen and nitrite is improved. The glass fiber, lanthanum nitrate solution, sodium silicate solution and sodium citrate are blended together. The glass fiber enhances the penetration effect of the bentonite sheet, and the effect of the reinforcement is improved. The water treatment efficiency is optimized. The complex modification agent adopts hydroxyapatite as a point, and cooperates with sodium lignosulfonate solution to enhance the activity and dispersity. Then, the chitosan solution, aluminum borate whisker, stearic acid and silane coupling agent are blended together to form a chitosan modifier. The chitosan solution cooperates with the whisker structure, and the hydroxyapatite distribution system cooperates with the whisker structure, so that the pollutants such as COD and ammonia nitrogen in water are further removed. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be clearly and completely described below in combination with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0027] The water treatment composition comprises the following raw materials: the composite microbial agent, the mineral bentonite agent and the complex modification agent. The mass ratio of the composite microbial agent, the mineral bentonite agent and the complex modification agent is (4-7):(5-10):2.

[0028] The preparation method of the composite microbial agent is as follows:

[0029] The Bacillus subtilis and the lactic acid bacteria are mixed according to the weight ratio of 3:2, and then cultured in a sufficient amount of nutrient solution for 2-3 days. The culture temperature is 38-42℃. After the culture, the composite microbial agent is obtained.

[0030] The preparation method of the nutrient solution is as follows: 1-2 parts by weight of sodium chloride, 1-3 parts by weight of amino acid, 1-3 parts by weight of magnesium sulfate, 1-3 parts by weight of ammonium sulfate, 1-3 parts by weight of zinc sulfate and 1-2 parts by weight of vitamin B, 2-5 parts by weight of glucose are added to 10-15 parts by weight of water for sufficient blending to obtain the nutrient solution.

[0031] The mass ratio of the composite microbial agent, the mineral swelling clay agent and the complex adjustment modifier in the embodiment is 5.5:7.5:2.

[0032] The preparation method of the mineral swelling clay agent in the embodiment is as follows:

[0033] S01: The bentonite is first mixed with sufficient hydrochloric acid solution with a mass fraction of 5% for sufficient mixing, and then washed with water and dried, and then the dried bentonite is heat treated at 260-280°C for 15-25 min, after the treatment, cooled to 145-155°C at a rate of 2-5°C / min, and kept for 5-10 min, and finally air-cooled to room temperature;

[0034] S02: 2-5 parts by weight of glass fiber, 1-3 parts by weight of lanthanum nitrate solution and 4-7 parts by weight of sodium silicate solution are sufficiently blended, and finally 1-2 parts by weight of sodium citrate is added and continuously mixed for sufficient mixing to obtain a glass fiber adjusting agent;

[0035] S03: The glass fiber adjusting agent and the bentonite of S01 are ball milled according to a weight ratio of 3:7, and after ball milling, washed with water and dried to obtain a mineral swelling clay agent.

[0036] The mass fraction of the lanthanum nitrate solution in the embodiment is 3-5%, and the mass fraction of the sodium silicate solution is 10-15%.

[0037] The ball milling speed of the ball milling in the embodiment is 1000-1500 r / min, and the ball milling time is 1-2 h.

[0038] The preparation method of the complex adjustment modifier in the embodiment is as follows:

[0039] S101: The hydroxyapatite is first immersed in a sodium lignosulfonate solution with 3-5 times the amount of the total hydroxyapatite for immersion treatment, and after the immersion, a hydroxyapatite immersion agent is obtained;

[0040] 4-7 parts by weight of chitosan solution with a mass fraction of 5%, 2-5 parts by weight of aluminum borate whisker, 1-3 parts by weight of stearic acid and 3-5 parts by weight of silane coupling agent are sufficiently blended to obtain a chitosan modifier;

[0041] S102: The hydroxyapatite immersion agent and the chitosan modifier are modified by stirring according to a weight ratio of 2:5, after stirring, washed with water and dried to obtain a complex adjustment modifier.

[0042] The mass fraction of the sodium lignosulfonate solution of the embodiment is 10-15%.

[0043] The immersion pressure of the immersion treatment of the embodiment is 10-15 MPa, and the immersion time is 20-30 min; the rotation speed of the stirring modification is 450-550 r / min, and the stirring time is 20-30 min.

[0044] The silane coupling agent of the embodiment is silane coupling agent KH560.

[0045] A preparation method of the water treatment composition of the embodiment comprises the following steps: sufficiently blending a composite microbial agent, a mineral bentonite agent, and a complex adjustment modifier to obtain the water treatment composition.

[0046] Embodiment 1.

[0047] The water treatment composition of the embodiment comprises the following raw materials: a composite microbial agent, a mineral bentonite agent, and a complex adjustment modifier; wherein the mass ratio of the composite microbial agent, the mineral bentonite agent, and the complex adjustment modifier is 4:5:2.

[0048] The preparation method of the composite microbial agent is as follows:

[0049] The bacillus subtilis and the lactic acid bacteria are mixed according to a weight ratio of 3:2, and then are cultured in sufficient nutrient solution for 2 days at a culture temperature of 38℃. After the culture, the composite microbial agent is obtained.

[0050] The preparation method of the nutrient solution is as follows: 1 part by weight of sodium chloride, 1 part by weight of amino acid, 1 part by weight of magnesium sulfate, 1 part by weight of ammonium sulfate, 1 part by weight of zinc sulfate, and 1 part by weight of vitamin B, 2 parts by weight of glucose are added to 10 parts by weight of water and are sufficiently blended to obtain the nutrient solution.

[0051] The preparation method of the mineral bentonite agent of the embodiment is as follows:

[0052] S01: The bentonite is first mixed in sufficient hydrochloric acid solution with a mass fraction of 5% and is then washed with water and dried. The dried bentonite is heated at 260℃ for 15 min, cooled to 145℃ at a rate of 2℃ / min, and kept for 5 min, and finally air-cooled to room temperature;

[0053] S02: 2 parts by weight of glass fiber, 1 part by weight of lanthanum nitrate solution, and 4 parts by weight of sodium silicate solution are sufficiently blended, and finally 1 part by weight of sodium citrate is added and is continuously mixed to obtain the glass fiber adjustment agent.

[0054] S03: The glass fiber regulator and the bentonite of S01 are blended and ball milled according to a weight ratio of 3:7. After ball milling, water washing and drying, the mineral bentonite agent is obtained.

[0055] The mass fraction of the lanthanum nitrate solution in the embodiment is 3%; and the mass fraction of the sodium silicate solution is 10%.

[0056] The ball milling speed of the blending ball milling in the embodiment is 1000 r / min, and the ball milling time is 1 h.

[0057] The preparation method of the complex modification agent in the embodiment is as follows:

[0058] S101: The hydroxyapatite is first immersed in a sodium lignosulfonate solution with a concentration of 3 times that of the total amount of the hydroxyapatite for immersion treatment. After the immersion, a hydroxyapatite immersion agent is obtained.

[0059] The chitosan modifier is obtained by blending 4 parts by weight of a chitosan solution with a mass fraction of 5%, 2 parts by weight of aluminum borate whiskers, 1 part by weight of stearic acid, and 3 parts by weight of a silane coupling agent.

[0060] S102: The hydroxyapatite immersion agent and the chitosan modifier are stirred and modified according to a weight ratio of 2:5. After stirring, water washing and drying, a complex modification agent is obtained.

[0061] The mass fraction of the sodium lignosulfonate solution in the embodiment is 10%.

[0062] The immersion pressure of the immersion treatment in the embodiment is 10 MPa, and the immersion time is 20 min. The stirring speed of the stirring modification is 450 r / min, and the stirring time is 20 min.

[0063] The silane coupling agent in the embodiment is silane coupling agent KH560.

[0064] The preparation method of the water treatment composition in the embodiment comprises the following steps: blending the complex microbial agent, the mineral bentonite agent, and the complex modification agent to obtain the water treatment composition.

[0065] Embodiment 2.

[0066] The water treatment composition in the embodiment comprises the following raw materials: a complex microbial agent, a mineral bentonite agent, and a complex modification agent. The mass ratio of the complex microbial agent, the mineral bentonite agent, and the complex modification agent is 7:10:2.

[0067] The preparation method of the complex microbial agent is as follows:

[0068] The complex microbial agent is obtained by mixing Bacillus subtilis and lactic acid bacteria according to a weight ratio of 3:2, and then culturing them in a sufficient amount of nutrient solution for 3 days at a culture temperature of 42℃.

[0069] The preparation method of the nutrient solution is as follows: 2 parts by weight of sodium chloride, 3 parts by weight of amino acid, 3 parts by weight of magnesium sulfate, 3 parts by weight of ammonium sulfate, 3 parts by weight of zinc sulfate and 2 parts by weight of vitamin B, 5 parts by weight of glucose are added to 50 parts by weight of water for sufficient blending to obtain the nutrient solution.

[0070] The preparation method of the mineral bentonite agent of the embodiment is as follows:

[0071] S01: the bentonite is first mixed with sufficient hydrochloric acid solution with a mass fraction of 5% for sufficient mixing, and then washed with water and dried, and then the dried bentonite is treated at 280°C for 25 min, cooled to 155°C at a rate of 5°C / min, kept for 10 min, and finally air-cooled to room temperature;

[0072] S02: 5 parts by weight of glass fiber, 3 parts by weight of lanthanum nitrate solution and 7 parts by weight of sodium silicate solution are sufficiently blended, and finally 2 parts by weight of sodium citrate is added and continuously mixed for sufficient mixing to obtain a glass fiber adjusting agent;

[0073] S03: the glass fiber adjusting agent and the bentonite of S01 are ball milled according to a weight ratio of 3:7, and after ball milling, washed with water and dried to obtain a mineral bentonite agent.

[0074] The mass fraction of the lanthanum nitrate solution of the embodiment is 5%; and the mass fraction of the sodium silicate solution is 15%.

[0075] The ball milling speed of the ball milling of the embodiment is 1500 r / min, and the ball milling time is 2 h.

[0076] The preparation method of the complex adjusting modifier of the embodiment is as follows:

[0077] S101: the hydroxyapatite is first immersed in a sodium lignosulfonate solution with a mass fraction of 5% and a volume of 5 times that of the hydroxyapatite for immersion treatment, and after immersion, a hydroxyapatite immersion agent is obtained;

[0078] 5 parts by weight of chitosan solution with a mass fraction of 5%, 5 parts by weight of aluminum borate whisker, 3 parts by weight of stearic acid and 5 parts by weight of silane coupling agent are sufficiently blended to obtain a chitosan modifier;

[0079] S102: the hydroxyapatite immersion agent and the chitosan modifier are modified by stirring according to a weight ratio of 2:5, and after stirring, washed with water and dried to obtain a complex adjusting modifier.

[0080] The mass fraction of the sodium lignosulfonate solution of the embodiment is 15%.

[0081] The immersion pressure of the immersion treatment of the embodiment is 15 MPa, and the immersion time is 30 min; the rotating speed of the stirring modification is 550 r / min, and the stirring time is 30 min.

[0082] The silane coupling agent of the embodiment is silane coupling agent KH560.

[0083] The preparation method of the water treatment composition of the embodiment comprises the following steps: sufficiently blending the composite microbial agent, the mineral bentonite agent and the complex modification agent to obtain the water treatment composition.

[0084] Embodiment 3.

[0085] The water treatment composition of the embodiment comprises the following raw materials: a composite microbial agent, a mineral bentonite agent and a complex modification agent; wherein the mass ratio of the composite microbial agent, the mineral bentonite agent and the complex modification agent is 5.5:7.5:2.

[0086] The preparation method of the composite microbial agent is as follows:

[0087] The bacillus subtilis and the lactic acid bacteria are mixed according to a weight ratio of 3:2, and then are cultured in sufficient nutrient solution for 2.5 days at a culture temperature of 40℃. After the culture, the composite microbial agent is obtained.

[0088] The preparation method of the nutrient solution is as follows: 1.5 parts by weight of sodium chloride, 1.5 parts by weight of amino acid, 2 parts by weight of magnesium sulfate, 2 parts by weight of ammonium sulfate, 2 parts by weight of zinc sulfate and 1.5 parts by weight of vitamin B, 3.5 parts by weight of glucose are added to 15 parts by weight of water and are sufficiently blended to obtain the nutrient solution.

[0089] The preparation method of the mineral bentonite agent of the embodiment is as follows:

[0090] S01: The bentonite is first mixed in sufficient hydrochloric acid solution with a mass fraction of 5% and is then washed with water and dried. The dried bentonite is treated at 270℃ for 20 min, is cooled to 150℃ at a rate of 3.5℃ / min and is kept for 5-10 min, and is finally air-cooled to room temperature;

[0091] S02: 3.5 parts by weight of glass fiber, 2 parts by weight of lanthanum nitrate solution and 5.5 parts by weight of sodium silicate solution are sufficiently blended, and finally 1.5 parts by weight of sodium citrate is added and is continuously mixed to obtain the glass fiber adjusting agent.

[0092] S03: The glass fiber adjusting agent and the bentonite of S01 are ball-milled according to a weight ratio of 3:7, and after the ball-milling, the mixture is washed with water and dried to obtain the mineral bentonite agent.

[0093] The mass fraction of the lanthanum nitrate solution is 4%; the mass fraction of the sodium silicate solution is 12.5%.

[0094] The ball milling speed of the blended ball milling in the embodiment is 1250 r / min, and the ball milling time is 1.5 h.

[0095] The preparation method of the complex modification agent in the embodiment is as follows:

[0096] S101: The hydroxyapatite is first immersed in a sodium lignosulfonate solution with a mass fraction of 4 times that of the total amount of the hydroxyapatite for immersion treatment. After the immersion is completed, a hydroxyapatite immersion agent is obtained.

[0097] 5.5 parts by weight of a chitosan solution with a mass fraction of 5%, 3.5 parts by weight of aluminum borate whiskers, 2 parts by weight of stearic acid, and 4 parts by weight of a silane coupling agent are sufficiently blended to obtain a chitosan modification agent.

[0098] S102: The hydroxyapatite immersion agent and the chitosan modification agent are modified by stirring at a weight ratio of 2:5. After the stirring is completed, the complex modification agent is obtained by washing with water and drying.

[0099] The mass fraction of the sodium lignosulfonate solution in the embodiment is 12.5%.

[0100] The immersion pressure of the immersion treatment in the embodiment is 12.5 MPa, and the immersion time is 25 min. The stirring speed of the modification is 500 r / min, and the stirring time is 25 min.

[0101] The silane coupling agent in the embodiment is silane coupling agent KH560.

[0102] The preparation method of the water treatment composition in the embodiment includes the following steps: the composite microbial agent, the mineral bentonite agent, and the complex modification agent are sufficiently blended to obtain the water treatment composition.

[0103] Comparative Example 1.

[0104] The difference between the embodiment 3 and the comparative example 1 is that the mineral bentonite agent is not added.

[0105] Comparative Example 2.

[0106] The difference between the embodiment 3 and the comparative example 2 is that the S01 treatment is not used in the preparation of the mineral bentonite agent.

[0107] Comparative Example 3.

[0108] The difference between the embodiment 3 and the comparative example 3 is that the glass fiber adjusting agent treatment is not used in the preparation of the mineral bentonite agent.

[0109] Comparative Example 4.

[0110] The difference between the embodiment 3 and the comparative example 4 is that the glass fiber and the lanthanum nitrate solution are not added in the glass fiber adjusting agent.

[0111] Comparative Example 5.

[0112] The difference from Example 3 is that no polyphonic modifier is added.

[0113] Comparative Example 6.

[0114] The difference from Example 3 is that no chitosan modifier treatment was used.

[0115] Comparative Example 7.

[0116] The difference from Example 3 is that no aluminum borate whiskers or stearic acid were added during the chitosan modifier treatment.

[0117] The performance measurement results of Examples 1-3 and Comparative Examples 1-7 are as follows

[0118] The product performance was tested and the performance measurement results are shown in Table 1.

[0119] Table 1

[0120]

[0121] As can be seen from Table 1, the product of the embodiment of the present invention can achieve the coordinated removal improvement effect of COD, ammonia nitrogen, and nitrite. At the same time, without adding one of the mineral bentonite agent and the polymodifying modifier, the performance of the product has a significant trend of deterioration. The two are coordinated and the coordination effect is the most significant. In addition, SO1 is not used in the preparation of the mineral bentonite agent, the glass fiber regulator is not used in the preparation of the mineral bentonite agent, and the glass fiber regulator is not added with glass fiber, lanthanum nitrate solution, chitosan modifier, and aluminum borate whisker and stearic acid are not added in the chitosan modifier. The performance of the product has a trend of deterioration. The mineral bentonite agent and the polymodifying modifier prepared by the method of the present invention have the most significant performance effect of the product. Other methods are used to replace the obvious effect of the present invention.

[0122] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0123] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A composition for water treatment, characterized in that, The water treatment composition comprises the following raw materials: a composite microbial agent, a mineral bentonite agent, and a complex adjustment modifier; wherein the mass ratio of the composite microbial agent, the mineral bentonite agent, and the complex adjustment modifier is (4-7):(5-10):

2. The preparation method of the composite microbial agent is as follows: Bacillus subtilis and lactic acid bacteria are mixed at a weight ratio of 3:2, and then cultured in sufficient nutrient solution for 2-3 days at a culture temperature of 38-42 DEG C; after the culture, the composite microbial agent is obtained. The preparation method of the nutrient solution is as follows: 1-2 parts by weight of sodium chloride, 1-3 parts by weight of amino acid, 1-3 parts by weight of magnesium sulfate, 1-3 parts by weight of ammonium sulfate, 1-3 parts by weight of zinc sulfate, and 1-2 parts by weight of vitamin B and 2-5 parts by weight of glucose are added to 10-15 parts by weight of water and fully mixed to obtain the nutrient solution. The preparation method of the mineral bentonite agent is as follows: S01: the bentonite is first mixed with sufficient 5% hydrochloric acid solution, then washed with water and dried, and then the dried bentonite is treated at 260-280 DEG C for 15-25 min, cooled to 145-155 DEG C at a rate of 2-5 DEG C / min, kept for 5-10 min, and finally air-cooled to room temperature; S02: 2-5 parts by weight of glass fiber, 1-3 parts by weight of lanthanum nitrate solution, and 4-7 parts by weight of sodium silicate solution are fully mixed, and then 1-2 parts by weight of sodium citrate is added and fully mixed to obtain a glass fiber adjusting agent; S03: the glass fiber adjusting agent and the bentonite of S01 are ball milled at a weight ratio of 3:7, washed with water and dried to obtain the mineral bentonite agent; and the preparation method of the complex adjustment modifier is as follows: S101: the hydroxyapatite is first immersed in a sodium lignosulfonate solution with a concentration of 3-5 times that of the hydroxyapatite for immersion treatment, and then the hydroxyapatite immersion agent is obtained; 4-7 parts by weight of 5% chitosan solution, 2-5 parts by weight of aluminum borate whisker, 1-3 parts by weight of stearic acid, and 3-5 parts by weight of silane coupling agent are fully mixed to obtain a chitosan modifier; S102: the hydroxyapatite immersion agent and the chitosan modifier are stirred and modified at a weight ratio of 2:5, and then washed with water and dried to obtain the complex adjustment modifier.

2. The water treatment composition of claim 1, wherein The mass ratio of the composite microbial agent, the mineral bentonite agent, and the complex adjustment modifier is 5.5:7.5:

2.

3. The water treatment composition of claim 1, wherein The mass fraction of the lanthanum nitrate solution is 3-5%, and the mass fraction of the sodium silicate solution is 10-15%.

4. The water treatment composition of claim 1, wherein The ball milling speed of the ball milling is 1000-1500 r / min, and the ball milling time is 1-2 h.

5. The water treatment composition of claim 1, wherein The mass fraction of the sodium lignosulfonate solution is 10-15%.

6. The water treatment composition of claim 1, wherein The immersion pressure of the immersion treatment is 10-15 MPa, and the immersion time is 20-30 min; the stirring speed of the stirring modification is 450-550 r / min, and the stirring time is 20-30 min.

7. The water treatment composition of claim 1, wherein The silane coupling agent is silane coupling agent KH560.

8. A process for the preparation of a water treatment composition according to any one of claims 1 to 7, characterised in that, The following steps are included: The composite microbial agent, the mineral bentonite agent, and the complex adjustment modifier are fully mixed to obtain the water treatment composition.

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