Municipal sewage anaerobic treatment filler and preparation method thereof

Abstract

The invention relates to the technical field of municipal sewage treatment, in particular to municipal sewage anaerobic treatment filler and a preparation method thereof.The municipal sewage anaerobic treatment filler comprises a double-ring assembly, a supporting assembly and a flow guide assembly, the supporting assembly is arranged in the double-ring assembly, hydroformylation fiber filaments are arranged on the periphery of the double-ring assembly at equal intervals, and the flow guide assembly is arranged in the double-ring assembly; the periphery of the supporting assembly is sleeved with a flow guide assembly. The flow guide assembly comprises MBBR filler, hollow holes are formed in the MBBR filler, hexagonal holes are formed in the positions, located on the peripheries of the hollow holes, in the MBBR filler, and convex edges are arranged on the two sides of the MBBR filler; the combined flow guide structure is additionally arranged, sewage is subjected to auxiliary flow division and flow guide treatment in a flow guide mode, the turbulent flow state in the anaerobic treatment tank is guaranteed, meanwhile, the MBBR filler is combined, the contact range and area of filler and sewage pollutants are increased, and therefore the use effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of municipal sewage treatment, and in particular to a municipal sewage anaerobic treatment filler and a preparation method thereof. Background Art

[0002] Municipal sewage mainly comes from the domestic water of urban residents, drainage of some small industrial enterprises and rainwater runoff. Municipal sewage treatment is to use a series of physical, chemical and biological methods to remove pollutants in sewage so that it can meet the discharge standard or the water quality standard for reuse. Anaerobic filler is a key material used in anaerobic biological treatment process. Anaerobic filler mainly provides a carrier for anaerobic microorganisms to attach and grow. In an anaerobic environment, microorganisms will attach to the surface of the filler to form a biofilm. These microorganisms decompose organic matter in sewage or organic waste through their own metabolic activities, thereby achieving the purpose of purifying water quality or treating organic waste;

[0003] When sewage enters the reaction tank containing anaerobic filler, microorganisms will gradually attach to the surface of the filler. This is because the surface of the filler has a certain roughness and pore structure, which can provide a habitat for microorganisms. As the microorganisms continue to attach and multiply, a layer of biofilm gradually forms on the surface of the filler. In this process, the organic matter in the sewage is gradually decomposed and transformed, realizing the function of anaerobic treatment.

[0004] At present, when using anaerobic sewage treatment fillers, there is a lack of combined diversion structures. Usually, the attachment of microorganisms is achieved in the anaerobic tank only by fixing the combined fillers. However, in actual use, due to the fixed filler area and the single water flow direction, the contact reaction between the filler and the pollutants in the sewage is actually affected, resulting in the need to increase the length and range of the anaerobic filler. Therefore, a municipal sewage anaerobic treatment filler and a preparation method are proposed to increase the combined diversion structure, utilize the diversion method to assist in diversion and diversion treatment of the sewage, ensure the turbulent state in the anaerobic treatment tank, and at the same time, combine with MBBR fillers to increase the contact range and area between the filler and the sewage pollutants, thereby improving the use effect. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a municipal sewage anaerobic treatment filler and a preparation method, so as to ensure the turbulent state in the anaerobic treatment tank, and at the same time, by combining with MBBR filler, increase the contact range and area between the filler and sewage pollutants, thereby improving the use effect.

[0006] The technical solution adopted by the present invention to solve the technical problem is a municipal sewage anaerobic treatment filler and a preparation method, comprising a double-circle component, a support component and a flow guide component, wherein the double-circle component is provided with a support component, the periphery of the double-circle component is equidistantly provided with aldehyded fiber filaments, and the periphery of the support component is provided with a flow guide component;

[0007] The guide component includes an MBBR filler, a hollow hole is opened in the MBBR filler, a hexagonal hole is opened in the MBBR filler at the periphery of the hollow hole, and convex edges are arranged on both sides of the MBBR filler.

[0008] By adopting the above technical scheme, a combined diversion structure can be added. By utilizing the combination of fillers, not only can the contact range and area between the fillers and sewage pollutants be increased, and the convenience of microbial attachment be improved, but also the diversion and diversion methods can be utilized to ensure the turbulent state in the anaerobic equipment and improve the use effect of the fillers.

[0009] Specifically, the double-ring assembly includes a circular ring, and elastic buckles are equidistantly arranged on the surface of the circular ring. Corresponding grooves are equidistantly provided on the surface of the circular ring between the elastic buckles.

[0010] By adopting the above technical solution, the circular ring, elastic buckle and slot can increase the splicing structure, and utilize the plug-in and elastic snap-on methods to improve the flexibility of using the double-ring component, and facilitate the subsequent removal and replacement of the filler to achieve the effect of recycling, which is beneficial to reduce resource waste and reduce the cost of municipal sewage treatment.

[0011] Specifically, a positioning hole is provided on the outer surface of the circular ring, and the positioning hole is connected to the card slot. The elastic buckle includes a card strip, and an arc-shaped card slot is provided on the inner surface of the circular ring located inside the card slot.

[0012] By adopting the above technical solution, the positioning holes, the card strips and the arc-shaped card slots are convenient for use in combination with the elastic buckles for plug-in positioning. At the same time, when subsequent replacement or maintenance operations are required, the separation operation can be completed by simply pushing the card strips back into the card slots through the positioning holes, which greatly improves the convenience of operation.

[0013] Specifically, the support assembly includes a sliding sleeve, support rods are equidistantly arranged on the periphery of the sliding sleeve, and the MBBR filler is connected to the support rods through a hollow hole sleeve, and a through hole is opened in the sliding sleeve.

[0014] By adopting the above technical solution, the sliding sleeve, support rod and through hole can increase the auxiliary support mechanism, and use the sleeve and clip connection method to improve the convenience of MBBR filler installation, while facilitating subsequent rapid disassembly and maintenance operations.

[0015] Specifically, a series rope is sleeved and connected inside the double-loop assembly, and a short tube is sleeved on the periphery of the series rope located between the double-loop assemblies.

[0016] By adopting the above technical solution, serial ropes and short tubes can be used to connect multiple groups of fillers, which can increase the space and range for microbial attachment while improving the convenience of subsequent manual cleaning and maintenance operations.

[0017] Specifically, step 1: preparing the ring: taking a polyethylene raw material, putting it into an injection molding machine, heating the plastic raw material at high temperature, injecting it into a corresponding ring mold cavity for injection molding, and then taking out the molded ring for cooling treatment;

[0018] Step 2: Prepare the support component: take the polyethylene raw material, put it into the injection molding machine, heat the plastic raw material at high temperature, inject it into the corresponding support component mold cavity for injection molding, and then take out the molded injection molding support component for cooling and shaping;

[0019] Step 3: preparing hydroformylation fiber: taking cellulose fiber (cotton fiber), scouring it, removing non-cellulose components such as wax and pectin in the cotton fiber under high temperature and alkaline conditions, and then immersing it in water for swelling treatment to make it fully swollen, and then putting the cellulose fiber (cotton fiber) and hydroformylation reagent (formaldehyde, glutaraldehyde) into a constant temperature reactor for hydroformylation reaction, during which the reaction temperature is maintained between 40-80°C, and the reaction time is 1-5h. After the hydroformylation reaction is completed, the fiber is taken out for washing, drying, and finishing;

[0020] Step 4: Preparation of MBBR filler: Mix raw materials of polyethylene, chitosan and maleic anhydride grafted polyolefin, put the mixed raw materials into an extruder, melt and extrude columnar filler at high temperature, then put it into a cooling water tank for cooling, take out the cooled columnar filler and send it into a cutting machine for fixed length cutting, so as to obtain MBBR filler;

[0021] Step 5: Combined filler: Take 50-80 pieces of aldehyded fiber yarns in turn, tie their ends and put them into the circular ring, and at the same time, insert the support rod of the support assembly into the corresponding arc-shaped groove. Then take another circular ring and place it opposite to it and press it down to make the elastic buckle fit into the corresponding groove. At the same time, press the aldehyded fiber yarn tightly and fix it. Finally, put the assembled double-loop assembly and short tube sleeve on the periphery of the series rope in turn.

[0022] By adopting the above technical scheme, not only can the contact reaction range and area between the filler and the sewage pollutants be increased, but the water body's own flow can also be used to assist in diversion and diversion treatment, thereby ensuring the turbulent state in the anaerobic equipment, which is beneficial to improving the adhesion of microorganisms on the filler surface, so that they gradually form a layer of biofilm on the filler surface.

[0023] Beneficial effects of the present invention:

[0024] (1) The municipal sewage anaerobic treatment filler and preparation method described in the present invention can increase the auxiliary combined diversion structure by setting the double-loop component, hydroformylation fiber, support component, MBBR filler, hollow hole, hexagonal hole and convex edge. By combining with the MBBR filler, the contact reaction area and range of pollutants in the sewage are increased. At the same time, the diversion and diversion methods can be used to ensure the turbulent state in the anaerobic treatment tank and improve the sewage treatment effect.

[0025] (2) The municipal sewage anaerobic treatment filler and preparation method described in the present invention can add auxiliary disassembly and assembly structures by setting up circular rings, elastic clips, and slots. The use of sleeve and snap connections can not only improve the convenience of subsequent manual maintenance, but also improve the flexibility of the recycling of the filler. The recycling method can greatly reduce the cost of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the support assembly structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the MBBR filler structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the double-loop assembly of the present invention;

[0031] Figure 5 It is a schematic diagram of the elastic buckle structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the series rope of the present invention;

[0033] In the figure: 1. double-circle assembly; 101. circular ring; 102. elastic buckle; 103. slot; 104. positioning hole; 105. arc-shaped slot; 106. clamping strip; 2. support assembly; 201. sliding sleeve; 202. support rod; 203. through hole; 3. aldehyded fiber filament; 4. flow guide assembly; 401. MBBR filler; 402. hollow hole; 403. hexagonal hole; 404. convex edge; 5. series rope; 6. short tube. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] In order to ensure the turbulent state in the anaerobic treatment tank, the contact range and area between the filler and the sewage pollutants are increased by combining MBBR filler, thereby improving the use effect. Figure 1-3 As shown, a municipal sewage anaerobic treatment filler and a preparation method of the present invention comprises a double-circle component 1, a support component 2 and a flow guide component 4, wherein the support component 2 is arranged inside the double-circle component 1, and the periphery of the double-circle component 1 is equidistantly provided with hydroformylation fiber filaments 3, and the periphery of the support component 2 is covered with a flow guide component 4;

[0036] The guide component 4 includes an MBBR filler 401 , in which a hollow hole 402 is opened. A hexagonal hole 403 is opened in the MBBR filler 401 at the periphery of the hollow hole 402 , and convex edges 404 are provided on both sides of the MBBR filler 401 .

[0037] When in use, a combined diversion structure can be added through the double-loop component 1, the support component 2, the hydroformylation fiber filaments 3 and the diversion component 4. By utilizing the combination of fillers, not only can the contact range and area between the fillers and the sewage pollutants be increased, and the convenience of microbial attachment be improved, but also the diversion and diversion methods can be utilized to ensure the turbulent state in the anaerobic equipment and improve the use effect of the fillers.

[0038] In order to reduce the cost of municipal sewage treatment, for example, Figure 1 , Figure 4 As shown, the present invention also includes that the double-ring assembly 1 includes a circular ring 101 , and elastic buckles 102 are equidistantly arranged on the surface of the circular ring 101 , and corresponding slots 103 are equidistantly opened on the surface of the circular ring 101 between the elastic buckles 102 .

[0039] When in use, the splicing structure can be increased through the circular ring 101, the elastic buckle 102 and the slot 103. The flexibility of the double-circle component 1 can be improved by plug-in and elastic snap-on methods, and the subsequent removal and replacement of the filler can be facilitated to achieve the effect of recycling, which is beneficial to reduce resource waste and reduce the cost of municipal sewage treatment.

[0040] For example, Figure 4 , Figure 4 As shown, the present invention also includes that a positioning hole 104 is opened on the outer surface of the ring 101, and the positioning hole 104 is connected to the card slot 103, the elastic buckle 102 includes a card strip 106, and an arc card slot 105 is opened on the inner surface of the ring 101 located on the inner side of the card slot 103.

[0041] When in use, the positioning hole 104, the card strip 106 and the arc-shaped card slot 105 are convenient for plugging and positioning in combination with the elastic buckle 102. At the same time, when subsequent replacement and maintenance operations are required, the separation operation can be completed by simply pushing the card strip 106 back into the card slot 103 from the positioning hole 104, which greatly improves the convenience of operation.

[0042] For example, Figure 2 As shown, the present invention also includes that the support assembly 2 includes a sleeve 201, support rods 202 are equidistantly arranged on the periphery of the sleeve 201, and the MBBR filler 401 is sleeved and connected to the support rods 202 through a hollow hole 402, and a through hole 203 is opened in the sleeve 201.

[0043] When in use, an auxiliary support mechanism can be added through the sliding sleeve 201, the support rod 202 and the through hole 203, and the convenience of installation of the MBBR filler 401 is improved by means of sleeve connection and snap connection, while facilitating subsequent rapid disassembly and maintenance operations.

[0044] For example, Figure 6 As shown, the present invention also includes that a series rope 5 is sleeved and connected inside the double-loop assembly 1, and a short tube 6 is sleeved on the periphery of the series rope 5 between the double-loop assemblies 1.

[0045] When in use, multiple groups of fillers can be connected and used through the series rope 5 and the short tube 6, which not only increases the space and range for microbial attachment, but also improves the convenience of subsequent manual cleaning and maintenance operations.

[0046] For example, Figure 1-6 As shown, the present invention also includes step 1: preparing a ring: taking a polyethylene raw material, putting it into an injection molding machine, heating the plastic raw material at high temperature, injecting it into a corresponding ring mold cavity for injection molding, and then taking out the molded ring 101 for cooling treatment;

[0047] Step 2: Prepare the support component: Take the polyethylene raw material, put it into the injection molding machine, heat the plastic raw material at high temperature, inject it into the corresponding support component mold cavity for injection molding, and then take out the molded injection molding support component 2 for cooling and shaping;

[0048] Step 3: preparing hydroformylation fiber: taking cellulose fiber (cotton fiber), scouring it, removing non-cellulose components such as wax and pectin in the cotton fiber under high temperature and alkaline conditions, and then immersing it in water for swelling treatment to make it fully swollen, and then putting the cellulose fiber (cotton fiber) and hydroformylation reagent (formaldehyde, glutaraldehyde) into a constant temperature reactor for hydroformylation reaction, during which the reaction temperature is maintained between 40-80°C, and the reaction time is 1-5h. After the hydroformylation reaction is completed, the fiber is taken out for washing, drying, and finishing;

[0049] Step 4: preparing MBBR filler: taking raw materials of polyethylene, chitosan and maleic anhydride grafted polyolefin and mixing them, and then putting the mixed raw materials into an extruder to melt and extrude columnar filler at high temperature, and then putting it into a cooling water tank for cooling, taking out the cooled columnar filler and sending it into a cutting machine for fixed-length cutting, thereby obtaining MBBR filler 401;

[0050] Step 5: Combined filler: Take 50-80 hydroxylated fiber filaments 3 in turn, tie their ends and put them into the circular ring 101, and at the same time, insert the support rod 202 of the support component 2 into the corresponding arc-shaped groove 105, and then take another circular ring 101 and place it relatively and press it down to make the elastic buckle 102 snap into the corresponding groove 103, and at the same time, press and fix the hydroxylated fiber filament 3, and finally, put the assembled double-loop component 1 and short tube 6 on the periphery of the series rope 5 in turn.

[0051] When in use, the combination of the double-loop component 1, the support component 2, the aldehyde fiber filament 3, the guide component 4, the series rope 5 and the short tube 6 can not only increase the contact reaction range and area between the filler and the sewage pollutants, but also utilize the water body's own flow to perform auxiliary diversion and diversion treatment, thereby ensuring the turbulent state in the anaerobic equipment, which is beneficial to improving the attachment of microorganisms to the filler surface, so that a layer of biofilm is gradually formed on the filler surface.

[0052] When the present invention is used, the operator first takes polyethylene raw material, puts it into an injection molding machine, heats the plastic raw material at high temperature, injects it into the corresponding ring mold cavity for injection molding, and then takes out the molded ring 101 for cooling treatment; takes polyethylene raw material, puts it into an injection molding machine, heats the plastic raw material at high temperature, injects it into the corresponding support component mold cavity for injection molding, and then takes out the molded injection molding support component 2 for cooling and shaping treatment; takes cellulose fiber (cotton fiber), scouring it, removes non-cellulose components such as wax and pectin in the cotton fiber under high temperature and alkaline conditions, and then immerses it in water for swelling treatment. The fiber is fully swollen, and then the cellulose fiber (cotton fiber) and the formaldehyde reagent (formaldehyde, glutaraldehyde) are put into a constant temperature reactor for formaldehyde reaction, during which the reaction temperature is maintained between 40-80°C and the reaction time is 1-5h. After the formaldehyde reaction is completed, the fiber is taken out for cleaning, drying and finishing. The raw materials of polyethylene, chitosan and maleic anhydride grafted polyolefin are mixed, and then the mixed raw materials are put into an extruder to melt and extrude columnar fillers at high temperature, and then the columnar fillers are put into a cooling water tank for cooling, and the cooled columnar fillers are taken out and sent to a cutting machine for fixed-length cutting, thereby obtaining MBBR filler 401;

[0053] Take 50-80 hydroxylated fiber strands 3 in sequence, tie their ends and put them into the circular ring 101, and at the same time, insert the support rod 202 of the support assembly 2 into the corresponding arc-shaped slot 105, then take another circular ring 101 and place it relatively and press it down, so that the elastic buckle 102 is inserted into the corresponding slot 103, and at the same time, the hydroxylated fiber strands 3 are pressed and fixed, and the hydroxylated fiber strands 3 are knotted again on the outside of the circular ring 101, and then the assembled double-loop assembly 1 and the short tube 6 are sequentially sleeved on the periphery of the series rope 5, and finally the two ends of the series rope 5 are fixed on the mounting bracket for use;

[0054] In the actual working process, the sewage contacts the annular ring 101, the aldehyde fiber filament 3, and the MBBR filler 401 respectively, which can not only increase the contact range and area between the pollutants in the sewage and the filler by utilizing the filler combination, but also can utilize the sleeve connection of the MBBR filler 401 and the guidance of the convex edge 404 to play the role of auxiliary diversion and diversion, thereby ensuring the turbulent state in the anaerobic equipment and reducing the influence of too low aeration intensity on the use effect of the filler. Moreover, after long-term use, the operator can quickly take the filler away from the anaerobic equipment through the series rope 5, and then push the card strip 106 of the elastic buckle 102 back into the card groove 103 from the positioning hole 104 on the outer surface of the double-circle component 1, so that the double-circle component 1, the support component 2 and the diversion component 4 can be quickly disassembled, so that the operator can replace and maintain them, thereby reducing resource waste through recycling, and at the same time, it is also beneficial to reduce the cost of municipal sewage treatment, and use it more reasonably and efficiently.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A filler for anaerobic treatment of municipal sewage and a preparation method thereof, characterized in that: The invention comprises a double-circle component (1), a support component (2) and a flow guide component (4), wherein the support component (2) is arranged inside the double-circle component (1), hydroxylated fiber filaments (3) are arranged equidistantly on the periphery of the double-circle component (1), and the flow guide component (4) is sleeved on the periphery of the support component (2); The flow guide component (4) comprises an MBBR filler (401), a hollow hole (402) is provided in the MBBR filler (401), a hexagonal hole (403) is provided in the MBBR filler (401) at the periphery of the hollow hole (402), and convex edges (404) are provided on both sides of the MBBR filler (401).

2. A filler for anaerobic treatment of municipal sewage and a preparation method according to claim 1, characterized in that: The double-ring assembly (1) comprises a circular ring (101), the surface of the circular ring (101) being provided with elastic buckles (102) at equal intervals, and the surface of the circular ring (101) being provided with corresponding clamping grooves (103) at equal intervals between the elastic buckles (102).

3. A filler for anaerobic treatment of municipal sewage and a preparation method according to claim 2, characterized in that: The outer surface of the circular ring (101) is provided with a positioning hole (104), and the positioning hole (104) is connected to the clamping groove (103). The elastic buckle (102) includes a clamping strip (106). The inner surface of the circular ring (101) is provided with an arc-shaped clamping groove (105) on the inner side of the clamping groove (103).

4. A filler for anaerobic treatment of municipal sewage and a preparation method according to claim 3, characterized in that: The support assembly (2) comprises a sleeve (201), support rods (202) are equidistantly arranged on the periphery of the sleeve (201), and the MBBR filler (401) is sleeved and connected to the support rods (202) through a hollow hole (402), and a through hole (203) is opened in the sleeve (201).

5. A filler for anaerobic treatment of municipal sewage and a preparation method according to claim 4, characterized in that: A series rope (5) is sleeved and connected inside the double-loop assembly (1), and a short tube (6) is sleeved on the periphery of the series rope (5) located between the double-loop assembly (1).

6. A filler for anaerobic treatment of municipal sewage and a preparation method according to claims 1-5, characterized in that: The specific preparation method is as follows: Step 1: preparing a ring: taking a polyethylene raw material, putting it into an injection molding machine, heating the plastic raw material at high temperature, injecting it into a corresponding ring mold cavity for injection molding, and then taking out the molded ring (101) for cooling treatment; Step 2: Prepare the support component: take polyethylene raw material, put it into an injection molding machine, heat the plastic raw material at high temperature, inject it into the corresponding support component mold cavity for injection molding, and then take out the molded injection molded support component (2) for cooling and shaping; Step 3: preparing hydroformylation fiber: taking cellulose fiber (cotton fiber), scouring it, removing non-cellulose components such as wax and pectin in the cotton fiber under high temperature and alkaline conditions, and then immersing it in water for swelling treatment to make it fully swollen, and then putting the cellulose fiber (cotton fiber) and hydroformylation reagent (formaldehyde, glutaraldehyde) into a constant temperature reactor for hydroformylation reaction, during which the reaction temperature is maintained between 40-80°C, and the reaction time is 1-5h. After the hydroformylation reaction is completed, the fiber is taken out for washing, drying, and finishing; Step 4: preparing MBBR filler: taking raw materials of polyethylene, chitosan and maleic anhydride grafted polyolefin and mixing them, and then putting the mixed raw materials into an extruder to melt and extrude columnar filler at high temperature, and then putting it into a cooling water tank for cooling, taking out the cooled columnar filler and sending it into a cutting machine for fixed-length cutting, thereby obtaining MBBR filler (401); Step 5: Combined filler: Take 50-80 hydroxylated fiber filaments (3) in turn, tie their ends and put them into the circular ring (101), and at the same time, insert the support rod (202) of the support component (2) into the corresponding arc-shaped groove (105), and then take another circular ring (101) and place it oppositely and press it down, so that the elastic buckle (102) is inserted into the corresponding groove (103), and at the same time, the hydroxylated fiber filaments (3) are pressed and fixed, and finally the assembled double-loop component (1) and the short tube (6) are sequentially placed on the periphery of the series rope (5).

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