A leachate total quantification treatment equipment

Abstract

The present application relates to a kind of leachate full-quantitative processing equipment, including pretreatment system, anaerobic reaction tank, sludge treatment system and supernatant treatment system, also including being set in the bottom of anaerobic reaction tank and being connected with pretreatment system water distribution mechanism, be set in the methane separation mechanism of anaerobic reaction tank, and be movably set between water distribution mechanism and methane separation mechanism and be used to carry biological membrane carrier mechanism;Water distribution mechanism includes being set in the bottom of anaerobic reaction tank and being connected with pretreatment system water outlet pipe, be set in the upper of water outlet pipe and be used to distribute leachate evenly in the inside of anaerobic reaction tank water distribution component, rotationally set between water outlet pipe and water distribution component and be used to prevent sludge accumulation stirring blade and be set on the shaft of stirring blade and with the rotation of shaft for pushing carrier mechanism to move pushing component.The present application solves the problem that existing leachate full-quantitative processing equipment is prone to short circuit and blockage, fluidization process control is difficult, and cost is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of leachate treatment, and particularly relates to a leachate full-quantitative treatment equipment. BACKGROUND

[0002] With the rapid development of social economy in China, the amount of municipal solid waste is increasing day by day, and the pollution factors in the municipal solid waste are more and more complex. At present, the main treatment method of municipal solid waste is sanitary landfill. In the process of treating the landfill, the problem of leachate treatment is inevitable. The composition of landfill leachate is relatively complex, containing a large amount of organic matter, ammonia nitrogen element, suspended solids and a small amount of heavy metal ions, and the proportion of nutrients is out of balance, so it is difficult to discharge up to standard. In order to improve the comprehensiveness of leachate treatment, full-quantitative treatment equipment is usually used for leachate treatment. Full-quantitative treatment of leachate refers to the same amount of wastewater and effluent during the treatment of leachate, without residual liquid, concentrated liquid or secondary pollution.

[0003] The patent document with the patent number CN115925120A discloses a landfill leachate full-quantitative treatment system, which comprises a pretreatment unit, a regulating tank, an anoxic biofilm reactor, an integrated short-cut nitrification-anaerobic ammonia oxidation-sediment-water separation reactor and a deep treatment unit. The pretreatment unit, the regulating tank, the anoxic biofilm reactor, the integrated short-cut nitrification-anaerobic ammonia oxidation-sediment-water separation reactor and the deep treatment unit are sequentially connected along the water flow direction. The integrated short-cut nitrification-anaerobic ammonia oxidation-sediment-water separation reactor is used to simultaneously realize short-cut nitrification and anaerobic ammonia oxidation to remove total nitrogen in the landfill leachate.

[0004] However, in the actual use process, the inventors found that the anaerobic reactor of the existing leachate full-quantitative treatment equipment is usually an anaerobic filter and an anaerobic fluidized bed reactor. The anaerobic filter refers to the growth of anaerobic bacteria on the filler to form a biofilm. The biofilm and the filler form a fixed filter bed. Not only is the price of the filler relatively high, but also the filter bed is prone to short circuit and blockage. The anaerobic fluidized bed reactor refers to the growth of anaerobic bacteria on the micro-particle filler to form a biofilm. The mass transfer rate of organic matter to the biofilm is improved, and the short circuit and blockage in the anaerobic filter are overcome. However, in fact, the formation and peeling of the biofilm are difficult to control, and the true fluidized bed form is difficult to achieve, resulting in difficult process control and high investment and operation cost. SUMMARY

[0005] The present application aims at solving the problems of short circuit and blockage of the existing leachate full-scale treatment equipment, and the difficulty in controlling the fluidization process and high cost.

[0006] To solve the above technical problems, the technical scheme is as follows: a leachate full-scale treatment equipment, comprising a pretreatment system, an anaerobic reaction tank, a sludge treatment system and a supernatant treatment system, further comprising:

[0007] a water distribution mechanism arranged at the bottom of the anaerobic reaction tank and connected to the pretreatment system, a biogas separation mechanism arranged in the anaerobic reaction tank, and a carrier mechanism movably arranged between the water distribution mechanism and the biogas separation mechanism and used for carrying the biofilm;

[0008] The water distribution mechanism comprises a water outlet pipe arranged at the bottom of the anaerobic reaction tank and connected to the pretreatment system, a water distribution assembly arranged above the water outlet pipe and used for uniformly distributing the leachate in the interior of the anaerobic reaction tank, a stirring blade rotatably arranged between the water outlet pipe and the water distribution assembly and used for preventing sludge accumulation, and a pushing assembly arranged on the shaft of the stirring blade and used for pushing the carrier mechanism to move with the rotation of the shaft.

[0009] Preferably, the carrier mechanism comprises a support assembly movably arranged in the interior of the anaerobic reaction tank, a plurality of mounting seats spaced apart and arranged on the support assembly, a first filler assembly and a second filler assembly movably arranged on both sides of the mounting seat respectively and used for carrying the biofilm, a liquid delivery assembly arranged outside the anaerobic reaction tank and used for delivering liquid into the mounting seat, a scraping assembly arranged on the mounting seat, and a driving assembly used for driving the first filler assembly and the second filler assembly to alternately extend out of the mounting seat and used for driving the scraping assembly to alternately scrape the inactivated biofilm on the first filler assembly and the second filler assembly.

[0010] As preferred, the driving assembly comprises a first driving column rotatably arranged inside the mounting base, a first push-pull groove formed on the outer circumferential surface of the first driving column and used for pushing and pulling the first filler assembly and the second filler assembly to move along with the rotation of the first driving column, a second push-pull groove formed on the outer circumferential surface of the first driving column and used for pushing and pulling the scraping assembly to scrape the inactivated biofilm along with the rotation of the first driving column, a second driving column movably arranged on the first driving column, and a driving groove formed on the second driving column and used for driving the first driving column to rotate along with the movement of the second driving column.

[0011] As preferred, the supporting assembly comprises a supporting frame movably arranged inside the anaerobic reaction tank and used for mounting the mounting base, a driving frame connected to the second driving columns and used for driving the second driving columns to move simultaneously, and a plurality of mounting rods arranged along the circumference of the driving frame and hingedly connected to the inner wall of the anaerobic reaction tank and the supporting frame at both ends, so as to movably mount the supporting frame inside the anaerobic reaction tank.

[0012] As preferred, the stirring blades are movably arranged inside the anaerobic reaction tank;

[0013] The pushing assembly comprises a first pushing rod having one end slidingly connected to the shaft and the other end slidingly connected to the supporting frame and used for pushing the supporting frame to move inside the anaerobic reaction tank along with the rotation of the shaft, and a second pushing rod having one end connected to the shaft and the other end slidingly connected to the driving frame and used for pushing the driving frame to move up and down along with the movement of the shaft.

[0014] As preferred, the first filler assembly and the second filler assembly each comprise a first push-pull rod movably arranged on the mounting base, a first sliding block arranged on one end of the first push-pull rod and slidingly connected to the first push-pull groove, and a filler body arranged on the other end of the first push-pull rod and used for carrying the biofilm.

[0015] As preferred, the scraping assembly comprises a second push-pull rod movably arranged on the mounting base, a second sliding block arranged on one end of the second push-pull rod and slidingly connected to the second push-pull groove, a first scraping plate arranged on the other end of the second push-pull rod and used for scraping the inactivated biofilm on the side surface of the first filler assembly and the second filler assembly, two second scraping plates arranged on the first driving column and used for scraping the inactivated biofilm on the end surface of the first filler assembly and the second filler assembly along with the rotation of the first driving column, and a cover plate arranged between the two second scraping plates, and the cover plate cooperates with the two second scraping plates and the mounting base to form a flow guide area used for guiding the liquid delivered by the infusion assembly to flow out above the mounting base.

[0016] As preferred, the mounting base comprises a shell arranged on the support assembly and used for mounting the driving assembly, and a mounting sleeve arranged in the shell and used for mounting the first filler assembly, the second filler assembly and the scraping assembly, and a first accommodating cavity for accommodating the first filler assembly and a second accommodating cavity for accommodating the second filler assembly are formed between the shell and the mounting sleeve.

[0017] As preferred, the water distribution assembly comprises a sludge cover arranged on the bottom of the anaerobic reaction tank and arched upward in the middle, a plurality of water outlets arranged on the sludge cover, and a shielding plate arranged on the sludge cover and used for shielding the water outlets.

[0018] As preferred, the biogas separation mechanism comprises a plurality of solid-gas separation covers arranged in the anaerobic reaction tank in an up-down manner, a gas-liquid separator arranged outside the anaerobic reaction tank, and an exhaust pipe connecting the solid-gas separation cover and the gas-liquid separator.

[0019] The beneficial effects of the present application are as follows:

[0020] (1) In the present application, the leachate is evenly distributed in the anaerobic reaction tank by the water distribution assembly, and the accumulation of suspended solids in the water distribution assembly is avoided by the stirring of the stirring blades, thereby improving the efficiency and completeness of the subsequent anaerobic reaction of the organic matter in the leachate; the biofilm is moved in the anaerobic reaction tank by the pushing assembly cooperating with the rotation of the shaft, which not only avoids the short circuit and blockage of the moving carrier mechanism, but also achieves the effect of a fluidized bed, making the fluidized process easy to control and thereby reducing the construction, investment and operation costs; the biogas, sludge and supernatant generated by the reaction are separated by the biogas separation mechanism, the suspended solids and sludge are further treated in the sludge treatment system, and the supernatant is further treated in the supernatant treatment system, thereby achieving full-scale treatment.

[0021] (2) The support assembly arranged to move drives the first filler assembly and the second filler assembly to move with the mounting seat in the anaerobic reaction tank, so that the effect similar to the fluidized bed is achieved. The first filler assembly and the second filler assembly are driven by the driving assembly to cooperate with the scraping assembly to alternately scrape the inactivated biofilm on the first filler assembly and the second filler assembly, and alternately cultivate new biofilm, so that the activity of the reaction biofilm is always in the best state, the reaction efficiency and effect are improved, and the biofilm cultivated in the leachate environment can avoid the situation that the bacterial flora cannot quickly adapt to the environment, so that the situation that the bacterial flora needs a large amount of time to adapt to the new environment is shortened. The infusion assembly can not only transport nutrient solution into the mounting seat to ensure the reproduction of the bacterial flora when the organic matter content in the leachate is low (for example, long-term rainy weather) and cannot meet the reproduction demand of the bacterial flora, but also avoid the death of a large amount of bacterial flora to cause the normal operation in the later period.

[0022] (3) The second push-pull rod is connected to the second sliding block in the second push-pull groove in a sliding manner, so that when the first driving column rotates, the second push-pull groove drives the first scraper to slide in the mounting seat with the second push-pull rod to scrape the inactivated biofilm on the first filler assembly or the second filler assembly. The two second scrapers cooperate with the rotation of the first driving column to scrape the inactivated biofilm on the end faces of the first filler assembly and the second filler assembly twice, so that the scraping effect is better. The cover plate can not only limit the biofilm cleaning agent in the mounting seat area to make the soaking effect better, but also make the biofilm cleaning agent flow upward after being diluted by the leachate after being discharged from the top of the mounting seat to the fluidized bed area, so as to avoid the excessive retention of the biofilm cleaning agent in the fluidized bed area to cause the mass death of the bacterial flora.

[0023] In summary, the device has the effects of no short circuit and blockage, easy control of fluidization process, low cost, and is especially suitable for the technical field of leachate treatment. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0025] Figure 1 A perspective view of the leachate full-scale treatment equipment provided by the present application.

[0026] Figure 2A perspective view of the anaerobic reaction tank provided by the present application.

[0027] Figure 3 A sectional view of the anaerobic reaction tank provided by the present application.

[0028] Figure 4 A perspective view of the water distribution assembly provided by the present application.

[0029] Figure 5 A perspective view of the water distribution assembly provided by the present application. Figure 4 An enlarged view of a portion A.

[0030] Figure 6 A perspective view of the bearing mechanism provided by the present application.

[0031] Figure 7 A sectional view of the bearing mechanism provided by the present application.

[0032] Figure 8 A perspective view of the mounting seat provided by the present application.

[0033] Figure 9 An exploded schematic view of the mounting seat provided by the present application.

[0034] Figure 10 A schematic view of the second driving column provided by the present application.

[0035] Figure 11 A perspective view of the second driving column provided by the present application. Figure 9 An enlarged view of a portion B.

[0036] Figure 12 A front view of the mounting seat provided by the present application.

[0037] Figure 13 A perspective view of the mounting seat provided by the present application. Figure 12 A sectional view along a portion C.

[0038] Figure 14 A pushing and pulling process diagram of the first pushing and pulling groove provided by the present application.

[0039] Figure 15 A perspective view of the second pushing and pulling groove provided by the present application. Figure 12 A sectional view along a portion D.

[0040] Figures 16-17 A pushing and pulling process diagram of the second pushing and pulling groove provided by the present application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely explained below with reference to the drawings.

[0042] Embodiment One

[0043] As Figures 1-4As shown, a leachate full-quantitative treatment equipment includes a pretreatment system 1, an anaerobic reaction tank 2, a sludge treatment system 3, and a supernatant treatment system 4, and further includes:

[0044] A water distribution mechanism 5 arranged at the bottom of the anaerobic reaction tank 2 and connected to the pretreatment system 1, a biogas separation mechanism 6 arranged in the anaerobic reaction tank 2, and a carrier mechanism 7 movably arranged between the water distribution mechanism 5 and the biogas separation mechanism 6 and used for carrying a biological membrane;

[0045] The water distribution mechanism 5 includes a water outlet pipe 51 arranged at the bottom of the anaerobic reaction tank 2 and connected to the pretreatment system 1, a water distribution assembly 52 arranged above the water outlet pipe 51 and used for uniformly distributing the leachate inside the anaerobic reaction tank 2, a stirring blade 53 rotatably arranged between the water outlet pipe 51 and the water distribution assembly 52 and used for preventing sludge accumulation, and a pushing assembly 54 arranged on a shaft 531 of the stirring blade 53 and used for pushing the carrier mechanism 7 to move along with the rotation of the shaft 531.

[0046] In the embodiment, the leachate is uniformly distributed inside the anaerobic reaction tank 2 by arranging the water distribution assembly 52 in cooperation with the stirring blade 53, thereby improving the reaction efficiency and completeness between the organic matter and the biological membrane, and the biological membrane is pushed to move in the anaerobic reaction tank 2 along with the carrier mechanism 7 by arranging the pushing assembly 54 in cooperation with the rotation of the shaft 531, thereby avoiding the short circuit and blockage of the biological membrane caused by the suspended solids in the leachate, and achieving the effect similar to a fluidized bed, and the fluidized process is easy to control, thereby reducing the construction, investment, and operation costs.

[0047] In detail, first, the leachate in the pretreatment system 1 is introduced into the bottom of the anaerobic reaction tank 2 through the water outlet pipe 51 and uniformly distributed inside the anaerobic reaction tank 2 in cooperation with the water distribution assembly 52, and the stirring of the stirring blade 53 avoids the accumulation of suspended solids in the water distribution assembly 52, thereby improving the anaerobic reaction efficiency and completeness of the organic matter in the subsequent leachate; then the leachate flows upward and reacts with the biological membrane on the carrier mechanism 7, at this time, the pushing assembly 54 pushes the biological membrane to move in the anaerobic reaction tank 2 along with the carrier mechanism 7 in cooperation with the rotation of the shaft 531, which not only avoids the short circuit and blockage of the moving carrier mechanism 7, but also achieves the effect similar to a fluidized bed, thereby making the fluidized process easy to control and further reducing the construction, investment, and operation costs; finally, the biogas, sludge, and supernatant generated by the reaction are separated by the biogas separation mechanism 6, the suspended solids and sludge sink to the bottom of the anaerobic reaction tank 2 and are discharged to the sludge treatment system 3 through the sludge discharge pipe 21 on the bottom of the anaerobic reaction tank 2 for further treatment, and the supernatant is discharged to the supernatant treatment system 4 through the water discharge pipe 22 at the upper end of the anaerobic reaction tank 2 for further treatment, thereby achieving full-quantitative treatment.

[0048] It should be noted that the number of bearing mechanisms 7 is preferably two, and the corresponding biogas separation mechanism 6 is two, each biogas separation mechanism 6 is correspondingly arranged above each bearing mechanism 7, so that the leachate reacts twice between the biological membrane through the two bearing mechanisms 7, the reaction is more complete, and the sludge, liquid and gas are separated twice through the two biogas separation mechanisms 6, avoiding incomplete separation.

[0049] Further, as shown in Figures 1-2 and Figures 6-17 The bearing mechanism 7 includes a support assembly 71 movably arranged inside the anaerobic reaction tank 2, a plurality of mounting seats 72 movably arranged on the support assembly 71, a first filler assembly 73 and a second filler assembly 74 movably arranged on both sides of the mounting seat 72 respectively and used for carrying the biological membrane, a liquid delivery assembly 75 arranged outside the anaerobic reaction tank 2 and used for delivering liquid into the mounting seat 72, a scraping assembly 76 arranged on the mounting seat 72, and a driving assembly 77 used for driving the first filler assembly 73 and the second filler assembly 74 to alternately extend out of the mounting seat 72 and used for driving the scraping assembly 76 to alternately scrape the biological membrane that loses activity on the first filler assembly 73 and the second filler assembly 74.

[0050] In this embodiment, the first filler assembly 73 and the second filler assembly 74 are driven by the movably arranged support assembly 71 to move with the mounting seat 72 inside the anaerobic reaction tank 2, achieving the effect similar to a fluidized bed. By driving the first filler assembly 73 and the second filler assembly 74 to alternately scrape the biological membrane that loses activity on the first filler assembly 73 and the second filler assembly 74 while alternately cultivating new biological membrane with the scraping assembly 76, the activity of the biological membrane in the reaction is always in the best state, improving the reaction efficiency and effect. At the same time, the biological membrane cultivated in the leachate environment can avoid the situation that the flora cannot quickly adapt to the environment, shorten the time required for the flora to adapt to the new environment, and through the setting of the liquid delivery assembly 75, not only can the nutrient solution be delivered into the mounting seat 72 to ensure the reproduction of the flora when the organic matter content in the leachate is low (such as long-term rainy weather) and cannot meet the reproduction needs of the flora, avoiding the death of a large number of flora to make the later cannot run normally, but also can deliver the biological membrane cleaning agent into the mounting seat 72 for soaking before the scraping assembly 76 scrapes the biological membrane that loses activity, so as to facilitate the scraping of the biological membrane that loses activity by the scraping assembly 76.

[0051] In detail, when the biofilm on the first filler assembly 73 or the second filler assembly 74 loses activity, the driving assembly 77 first drives the first filler assembly 73 or the second filler assembly 74 to slide into the interior of the mounting seat 72, then the infusion assembly 75 infuses the biofilm cleaning agent into the mounting seat 72 to soak the biofilm that loses activity, after that, the driving assembly 77 drives the scraping assembly 76 to easily scrape off the biofilm that loses activity, then the bacteria colony can be cultured on the first filler assembly 73 or the second filler assembly 74 to form a biofilm, at this time, the infusion assembly 75 is used to direct the nutrient solution into the mounting seat 72 to improve the culture speed of the bacteria colony and avoid the cultured bacteria colony from dying rapidly, finally, when the biofilm is formed, the driving assembly 77 drives the first filler assembly 73 or the second filler assembly 74 to extend out of the mounting seat 72 to make the biofilm fully contact with the organic matter in the percolate to react.

[0052] It should be noted that the infusion assembly 75 can be used to transport the liquid in the liquid storage bin into the mounting seat 72 through a pump and a pipeline, and the structure and the mounting mode thereof are prior art, which will not be described in detail here.

[0053] Further, as shown in Figures 9-17 The driving assembly 77 includes a first driving column 771 rotatably arranged in the interior of the mounting seat 72, a first push-pull groove 772 formed on the outer ring surface of the first driving column 771 and used to push and pull the first filler assembly 73 and the second filler assembly 74 to move along with the rotation of the first driving column 771, a second push-pull groove 773 formed on the outer ring surface of the first driving column 771 and used to push and pull the scraping assembly 76 to scrape off the biofilm that loses activity along with the rotation of the first driving column 771, a second driving column 774 movably arranged on the first driving column 771, and a driving groove 775 formed on the second driving column 774 and used to drive the first driving column 771 to rotate along with the up-and-down movement of the second driving column 774.

[0054] In the embodiment, the first driving column 771 is used to drive the first filler assembly 73 or the second filler assembly 74 to extend into the mounting seat 72 and drive the scraping assembly 76 to simultaneously scrape off the biofilm that loses activity on the first filler assembly 73 and the second filler assembly 74 through the first push-pull groove 772 and the second push-pull groove 773, and the second driving column 774 is used to drive the first driving column 771 to rotate through the driving groove 775, which has the advantages of simple and compact structure and convenient simultaneous work of the first filler assembly 73, the second filler assembly 74 and the scraping assembly 76.

[0055] In detail, when the second driving column 774 moves up and down to drive the first driving column 771 to rotate through the driving groove 775, the first driving column 771 drives the first filler assembly 73 or the second filler assembly 74 to extend into the mounting seat 72 through the first push-pull groove 772, and simultaneously drives the scraping assembly 76 to synchronously scrape off the biofilm that loses activity on the first filler assembly 73 and the second filler assembly 74 through the second push-pull groove 773.

[0056] It should be noted that the specific structure of the driving groove 775 is not limited in the present application, and only one structure is provided below for reference, for example:

[0057] The first driving column 771 is provided with a driving rod 7711 connected to the driving groove 775. The driving groove 775 includes a plurality of first driving segments 7751, second driving segments 7752, and third driving segments 7753 alternately arranged on the second driving column 774 along the circumference of the first driving column 771. The first driving segment 7751 is used to cooperate with the second driving column 774 to move downward to force the first driving column 771 to rotate 90°. The second driving segment 7752 is used to cooperate with the second driving column 774 to move upward to force the first driving column 771 to rotate 90°. The third driving segment 7753 is used to cooperate with the first driving column 771 to move downward to guide the driving rod 7711 to slide into the first driving segment 7751, and is used to cooperate with the first driving column 771 to move upward to guide the driving rod 7711 to slide into the second driving segment 7752. This intermittent rotation of the first driving column 771 enables the intermittent step-by-step work of the first filler assembly 73, the second filler assembly 74, and the scraping assembly 76 (including the scraping work of the inactivated biofilm, the culturing work of the new biofilm, and the reaction work of the biofilm and the organic matter in the leachate).

[0058] Further, as shown in Figures 2-3 and Figure 6 The support assembly 71 includes a support frame 711 movably arranged inside the anaerobic reaction tank 2 and used to mount the mounting seat 72, a driving frame 712 connected to the plurality of second driving columns 774 and used to drive the plurality of second driving columns 774 to move simultaneously, and a plurality of mounting rods 713 circumferentially arranged on the driving frame 712 and respectively hinged at both ends to the support frame 711 and the inner wall of the anaerobic reaction tank 2, so as to movably mount the support frame 711 inside the anaerobic reaction tank 2.

[0059] In the present embodiment, the plurality of mounting seats 72 are movably mounted inside the anaerobic reaction tank 2 by arranging the support frame 711 to cooperate with the mounting rod 713, and the second driving columns 774 on each mounting seat 72 are driven to move up and down simultaneously by arranging the driving frame 712, which facilitates the simultaneous driving of the plurality of mounting seats 72 and the internal structure of the mounting seat 72.

[0060] It should be noted that the support frame 711 is internally formed with a pipe cavity 7111 for mounting the pipe of the liquid feeding assembly 75. The support frame 711 includes a body 7112 and a cover 7113 detachably arranged on the body 7112 and used to open or close the pipe cavity 7111, which facilitates the mounting of the pipe of the liquid feeding assembly 75 in the pipe cavity 7111, and further facilitates the connection of the liquid feeding assembly 75 to each mounting seat 72 and the feeding of liquid (such asFigure 7 As shown in FIG. 6, the support frame 711 is arranged to move in the radial direction of the anaerobic reaction tank 2, and the sludge accumulated between the exposed pipeline and the support frame 711 is avoided.

[0061] Further, as shown in FIG. 6, the stirring blade 53 is arranged to move up and down in the anaerobic reaction tank 2; Figures 3-4

[0062] The pushing assembly 54 includes a first pushing rod 541 connected to the shaft 531 at one end and connected to the support frame 711 at the other end to push the support frame 711 to move in the anaerobic reaction tank 2, and a second pushing rod 542 connected to the shaft 531 at one end and connected to the driving frame 712 at the other end to push the driving frame 712 to move up and down.

[0063] In this embodiment, the movement of the support frame 711 and the driving frame 712 is achieved by setting the first pushing rod 541 and the second pushing rod 542 to cooperate with the rotation and the up and down movement of the shaft 531, respectively, avoiding the need to set the driving structure for driving the support frame 711 and the driving frame 712, and the structure is simple and reasonable, reducing the construction cost.

[0064] In detail, when the shaft 531 rotates, the first pushing rod 541 and the second pushing rod 542 rotate with the shaft 531, and then push the support frame 711 and the driving frame 712 to move in the radial direction of the anaerobic reaction tank 2, and when the shaft 531 moves up and down, the first pushing rod 541 moves up and down on the shaft 531, and the second pushing rod 542 moves up and down with the shaft 531, and then pushes the second driving column 774 to move up and down with the driving frame 712.

[0065] It should be noted that the number of the first pushing rod 541 and the second pushing rod 542 is preferably two, which improves the stability of the connection between the shaft 531 and the support frame 711 and the mounting frame.

[0066] Further, as shown in FIG. 6, the stirring blade 53 is arranged to move up and down in the anaerobic reaction tank 2; Figure 11 Figures 13-14 As shown in FIG. 6, the first filler assembly 73 and the second filler assembly 74 each include a first push-pull rod 731 movably arranged on the mounting seat 72, a first sliding block 732 arranged at one end of the mounting rod 713 and slidably connected to the first push-pull slot 772, and a filler body 733 arranged at the other end of the first push-pull rod 731 and used to carry the biofilm.

[0067] In this embodiment, by setting the first push-pull rod 731 to cooperate with the first sliding block 732 to be slidably connected to the first push-pull slot 772, when the first driving column 771 rotates, the first push-pull slot 772 drives the filler body 733 to extend out of or into the mounting seat 72 with the first push-pull rod 731.

[0068] ​​It should be noted that the specific structure of the first push-pull groove 772 is not limited in the present application, and only one structure is provided below for reference, for example:

[0069] The first push-pull groove 772 includes a first pushing section 7721 for pushing the first push-pull rod 731 to move radially outward, and a first pulling section 7722 for pulling the first push-pull rod 731 to move radially inward, and when the first pushing section 7721 pushes the first filler assembly 73 to move radially outward, the first pulling section 7722 pulls the second filler assembly 74 to move radially inward at the same time, thereby achieving driving the first filler assembly 73 and the second filler assembly to alternately extend out of the mounting seat 72.

[0070] Further, as shown in Figures 6-17 The scraping assembly 76 includes a second push-pull rod movably arranged on the mounting seat 72, a second sliding block 762 arranged at one end of the second push-pull rod and slidingly connected to the second push-pull groove 773, a first scraper 763 arranged at the other end of the second push-pull rod and used for scraping the biofilm that loses activity on the side surface of the first filler assembly 73 and the second filler assembly 74, two second scrapers 764 arranged at intervals on the first driving column 771 and used for scraping the biofilm that loses activity on the end surface of the first filler assembly 73 and the second filler assembly 74 with the rotation of the first driving column 771, and a cover plate 765 arranged between the two second scrapers 764, and the cover plate 765 cooperates with the two second scrapers 764 and the mounting seat 72 to form a flow guide area 766 above the mounting seat 72 for guiding the liquid delivered by the infusion assembly 75 to flow out of the mounting seat 72.

[0071] In the present embodiment, by arranging the second push-pull rod to slidingly connect the second sliding block 762 to the second push-pull groove 773, the second push-pull groove 773 is driven to slide the first scraper 763 along the second push-pull rod in the mounting seat 72 to scrape the biofilm that loses activity on the first filler assembly 73 or the second filler assembly 74 with the rotation of the first driving column 771, and by arranging the two second scrapers 764 to cooperate with the rotation of the first driving column 771, the biofilm that loses activity on the end surface of the first filler assembly 73 and the second filler assembly 74 is scraped twice, and the scraping effect is better. By arranging the cover plate 765, the biofilm cleaning agent is limited in the area of the mounting seat 72, so that the soaking effect is better, and the biofilm cleaning agent flows upward after being diluted by the percolate after flowing out of the area of the mounting seat 72 to the fluidized bed area, avoiding excessive retention of the biofilm cleaning agent in the fluidized bed area causing large-area death of the bacterial population.

[0072] In detail, in the process of scraping the inactivated biofilm on the first filler assembly 73 and cultivating new biofilm, first, the first driving column 771 rotates 90° to drive the first filler assembly 73 to extend into the mounting seat 72, at this time, the first scraper 763 and a second scraper 764 respectively scrape the side surface and the end surface of the first filler assembly 73 for the first time, then the biofilm cleaning agent is input into the mounting seat 72, the inactivated biofilm after the first scraping produces burrs, which is more likely to react with the biofilm cleaning agent, and under the action of the two scrapers and the cover plate 765, the biofilm cleaning agent is limited in the mounting seat 72 area and prevented from flowing back to the fluidized bed area to cause mass death of the bacterial population after dilution, then the first driving column 771 rotates 90° again to expose the first filler assembly 73 to the leachate for cultivating biofilm, at this time, the second push-pull slot 773 pushes and pulls the first scraper 763 and cooperates with the other second scraper 764 to scrape the side surface and the end surface of the first filler assembly 73 for the second time, the scraping effect is better and the scraping is cleaner, finally, the first driving column 771 rotates 90° to the second filler assembly 74 to drive the first filler assembly 73 to extend out of the mounting seat 72, so that the newly cultivated biofilm reacts with the organic matter, at this time, the first driving column 771 drives the second filler assembly 74 to extend into the mounting seat 72 to scrape the biofilm and cultivate new biofilm, and so on, to realize the effect of alternating cultivation of new biofilm on the first filler assembly 73 and the second filler assembly 74.

[0073] It should be noted that the specific structure of the second driving slot 775 is not limited in the present application, and only one structure is provided below for reference, for example:

[0074] The second push-pull slot 773 includes a second pushing section 7731 for moving the second push-pull rod radially outward, a second pulling section 7732 for moving the second push-pull rod radially inward, and a third pushing section 7733 arranged between the two ends of the second pulling section 7732 and used for pushing the second push-pull rod radially outward, the first pushing section 7721 and the second pushing section 7731 realize the alternating movement of the first scraper 763 at the first filler assembly 73 and the scraper at the second filler assembly 74 and the first scraping of the inactivated biofilm, so that the residual inactivated biofilm is more likely to contact and react with the biofilm cleaning agent, and the third pushing section 7733 realizes the second scraping of the inactivated biofilm by the first scraper 763 after the biofilm cleaning agent soaks the inactivated biofilm, and the scraping is cleaner;

[0075] In addition, the first slider 732 and the second slider 762 are both spherical in shape, so that the first slider 732 and the second slider 762 are respectively connected and installed in the first push-pull slot 772 and the second push-pull slot 773 after being deformed by being pressed in the first push-pull slot 772 and the second push-pull slot 773, and the installation operation is simple and convenient.

[0076] Further, as shown in Figure 9 the mounting seat 72 includes the shell 721 arranged on the support assembly 71 and used for mounting the driving assembly 77, and the mounting sleeve 722 arranged in the shell 721 and used for mounting the first filler assembly 73, the second filler assembly 74 and the scraping assembly 76, and the shell 721 and the mounting sleeve 722 form the first accommodating cavity 723 for accommodating the first filler assembly 73 and the second accommodating cavity 724 for accommodating the second filler assembly 74.

[0077] In the embodiment, by arranging the shell 721 to cooperate with the mounting sleeve 722, the first filler assembly 73, the second filler assembly 74 and the scraping assembly 76 are facilitated to be mounted and dismounted, and the first filler assembly 73 and the second filler assembly 74 are alternately cultured with biological membranes through the first accommodating cavity 723 and the second accommodating cavity 724.

[0078] In detail, during installation, the driving assembly 77 is first mounted in the mounting sleeve 722, then the first filler assembly 73, the second filler assembly 74 and the scraping assembly 76 are mounted on the mounting sleeve 722 and the driving assembly 77, and finally the shell 721 is connected to the mounting sleeve 722 to fix the driving assembly 77 and is mounted on the support assembly 71; during the process of culturing new biological membranes, the infusion assembly 75 can transport nutrient solution for culturing biological membranes into the first accommodating cavity 723 or the second accommodating cavity 724.

[0079] Further, as shown in Figures 2-5 the water distribution assembly 52 includes the sludge cover 521 arranged on the bottom of the anaerobic reaction tank 2 and arched upward in the middle, a plurality of water outlets 522 arranged on the sludge cover 521, and the shielding plate 523 arranged on the sludge cover 521 and used for shielding the water outlets 522.

[0080] In the embodiment, by arranging the sludge cover 521 arched upward in the middle to cooperate with the shielding plate 523, the sludge and the suspended solids in the sinking process are guided to the inner bottom of the anaerobic reaction tank 2, so as to avoid entering the inside of the sludge cover 521 through the water outlets 522.

[0081] It should be noted that the sludge cover 521 is preferably a conical structure, so that after the sludge sinks to the bottom, it slides to the inner bottom of the anaerobic reaction tank 2 through the guiding function of the outer wall of the sludge cover 521, and then is discharged to the sludge treatment system 3 through the sludge discharge pipe 21 on the inner bottom of the anaerobic reaction tank 2 for treatment.

[0082] Further, as shown in Figures 2-3 The biogas separation mechanism 6 includes a plurality of solid-gas separation covers 61 arranged vertically in the anaerobic reactor 2, a gas-liquid separator 62 arranged outside the anaerobic reactor 2, and an exhaust pipe 63 connecting the solid-gas separation cover 61 and the gas-liquid separator 62.

[0083] In this embodiment, the separation of biogas, sludge, and supernatant is achieved by arranging the solid-gas separation cover 61. The separated biogas carrying liquid is discharged into the gas-liquid separator 62 through the exhaust pipe 63 and then separated and collected. The sludge and suspended solids in the percolate sink to the bottom of the anaerobic reactor 2.

[0084] It should be noted that the solid-gas separation cover 61 includes a plurality of first separation plates 611 and second separation plates 612 arranged at equal intervals and connected in a cross shape in the anaerobic reactor 2. The first separation plates 611 and the second separation plates 612 are arranged in a staggered manner, and the intersection angle of the first separation plates 611 and the second separation plates 612 faces downward. Therefore, the lower part of the plurality of solid-gas separation covers 61 cooperates to completely intercept the gas, and the upper part of the plurality of solid-gas separation covers 61 cooperates to guide the sludge to move downward, thereby avoiding the accumulation of sludge.

[0085] In addition, the gas-liquid separator 62 itself and the installation method are prior art, and will not be described in detail here.

[0086] Working process:

[0087] First, the leachate in the landfill area is collected in the pretreatment system 1 to adjust the water quality of the leachate and preliminarily filter large-particle suspended solids.

[0088] Next, the leachate in the pretreatment system 1 is introduced into the bottom of the anaerobic reactor 2 through the water outlet pipe 51 and uniformly distributed in the interior of the anaerobic reactor 2 in cooperation with the water distribution assembly 52, while avoiding the accumulation of suspended solids in the water distribution assembly 52 in cooperation with the stirring of the stirring blade 53, thereby improving the anaerobic reaction efficiency and completeness of organic matter in the subsequent leachate.

[0089] Then, the leachate flows upward and undergoes anaerobic reaction with the biofilm on the carrier mechanism 7. At this time, the pushing assembly 54 pushes the biofilm to move with the carrier mechanism 7 in the anaerobic reactor 2 in cooperation with the rotation of the shaft 531. This not only avoids short circuiting and clogging of the moving carrier mechanism 7, but also achieves a fluidized bed effect, making the fluidized process easy to control and thereby reducing construction, investment, and operating costs.

[0090] Finally, the biogas, sludge and supernatant produced by the reaction are separated by the biogas separation mechanism 6, the suspended matter and sludge sink to the bottom of the anaerobic reactor 2 and are discharged to the sludge treatment system 3 through the sludge discharge pipe 21 on the bottom of the anaerobic reactor 2 for further treatment, and the supernatant is discharged to the supernatant treatment system 4 through the water discharge pipe 22 on the upper end of the anaerobic reactor 2 for further treatment, so as to achieve full-scale treatment.

[0091] In the description of the present application, it should be understood that the terms "front", "rear", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0092] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0093] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements easily thought of by those skilled in the art under the technical hints of the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A leachate total quantification treatment equipment comprising a pretreatment system, an anaerobic reaction tank, a sludge treatment system, and a supernatant treatment system, characterized by, Also comprising: a water distribution mechanism arranged at the bottom of the anaerobic reactor tank and connected to the pretreatment system, a biogas separation mechanism arranged in the anaerobic reactor tank, and a carrier mechanism arranged between the water distribution mechanism and the biogas separation mechanism and used for carrying the biofilm; the water distribution mechanism comprises a water outlet pipe arranged at the bottom of the anaerobic reactor tank and connected to the pretreatment system, a water distribution assembly arranged above the water outlet pipe and used for uniformly distributing the leachate inside the anaerobic reactor tank, a stirring blade rotatably arranged between the water outlet pipe and the water distribution assembly and used for preventing sludge accumulation, and a pushing assembly arranged on the shaft of the stirring blade and used for pushing the carrier mechanism to move along with the rotation of the shaft; the carrier mechanism comprises a support assembly movably arranged inside the anaerobic reactor tank, a plurality of mounting seats arranged at intervals on the support assembly, a first filler assembly and a second filler assembly movably arranged on both sides of the mounting seat respectively and used for carrying the biofilm, a liquid delivery assembly arranged outside the anaerobic reactor tank and used for delivering liquid into the mounting seat, a scraping assembly arranged on the mounting seat, and a driving assembly used for driving the first filler assembly and the second filler assembly to alternately extend out of the mounting seat and used for driving the scraping assembly to alternately scrape the biofilm that has lost activity on the first filler assembly and the second filler assembly; the driving assembly comprises a first driving column rotatably arranged inside the mounting seat, a first push-pull groove formed on the outer ring surface of the first driving column and used for pushing and pulling the first filler assembly and the second filler assembly to move along with the rotation of the first driving column, a second push-pull groove formed on the outer ring surface of the first driving column and used for pushing and pulling the scraping assembly to scrape the biofilm that has lost activity along with the rotation of the first driving column, a second driving column movably arranged on the first driving column, and a driving groove formed on the second driving column and used for driving the first driving column to rotate along with the up-and-down movement of the second driving column; the support assembly comprises a support frame movably arranged inside the anaerobic reactor tank and used for mounting the mounting seat, a driving frame connected to a plurality of the second driving columns and used for driving the plurality of second driving columns to move simultaneously, and a plurality of mounting rods arranged along the circumference of the driving frame and hingedly connected to the support frame and the inner wall of the anaerobic reactor tank at both ends respectively, so as to movably mount the support frame inside the anaerobic reactor tank; the stirring blade is movably arranged inside the anaerobic reactor tank; the pushing assembly comprises a first pushing rod having one end slidingly connected to the shaft and the other end slidingly connected to the support frame and used for pushing the support frame to move inside the anaerobic reactor tank along with the rotation of the shaft, and a second pushing rod having one end connected to the shaft and the other end slidingly connected to the driving frame and used for pushing the driving frame to move up and down along with the up-and-down movement of the shaft.

2. The leachate total quantity treatment equipment according to claim 1, characterized in that, The first filler assembly and the second filler assembly each include a first push-pull rod movably arranged on the mounting base, a first sliding block arranged at one end of the mounting rod and slidably connected to the first push-pull slot, and a filler body arranged at the other end of the first push-pull rod and used for carrying the biofilm.

3. The leachate total quantity treatment equipment according to claim 1, characterized in that, The scraping assembly includes a second push-pull rod movably arranged on the mounting base, a second sliding block arranged at one end of the second push-pull rod and slidably connected to the second push-pull slot, a first scraping plate arranged at the other end of the second push-pull rod and used for scraping the biofilm on the side surface of the first filler assembly and the second filler assembly, two second scraping plates arranged at intervals on the first driving column and used for scraping the biofilm on the end surface of the first filler assembly and the second filler assembly, and a cover plate arranged between the two second scraping plates, and the cover plate cooperates with the two second scraping plates and the mounting base to form a flow guide area used for guiding the liquid delivered by the liquid delivery assembly to flow out above the mounting base.

4. The leachate total quantity treatment equipment according to claim 1, characterized in that, The mounting base includes a shell arranged on the support assembly and used for mounting the driving assembly, and a mounting sleeve arranged in the shell and used for mounting the first filler assembly, the second filler assembly and the scraping assembly, and a first accommodating cavity used for accommodating the first filler assembly and a second accommodating cavity used for accommodating the second filler assembly are formed between the shell and the mounting sleeve.

5. The leachate total quantity treatment equipment according to claim 1, characterized in that, The water distribution assembly includes a sludge cover arranged on the bottom of the anaerobic reaction tank and arched upward in the middle, a plurality of water outlets arranged on the sludge cover, and a shielding plate arranged on the sludge cover and used for shielding the water outlets.

6. The leachate total quantity treatment equipment according to claim 1, characterized in that, The biogas separation mechanism includes a plurality of solid-gas separation covers arranged at intervals above and below the anaerobic reaction tank, a gas-liquid separator arranged outside the anaerobic reaction tank, and an exhaust pipe connecting the solid-gas separation covers and the gas-liquid separator.

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