Slaughter sewage resourceful treatment system

Abstract

The invention provides a slaughter sewage resourceful treatment system, and belongs to the technical field of sewage treatment.The slaughter sewage resourceful treatment system comprises a pretreatment subsystem, an up-to-standard treatment subsystem and a resourceful utilization subsystem, and sewage treatment equipment is constructed to be connected with an anaerobic fermentation tank through a pipeline; the resource utilization subsystem comprises a waste fermentation tank, a biogas generator and a water and fertilizer integrated machine, the waste fermentation tank is configured to ferment solid waste subjected to solid-liquid separation by the grating to obtain available organic fertilizer, and the biogas generator is configured to generate power by using biogas collected by anaerobic fermentation of the anaerobic fermentation tank to obtain available electric energy; the water and fertilizer all-in-one machine is configured to mix the biogas slurry filtered and collected by the sewage treatment equipment with available organic fertilizer to obtain available water and fertilizer. According to the invention, resources in the sewage treatment process are fully excavated and reused in the slaughterhouse and the ecological system thereof, so that zero-pollution high-cycle discharge from the slaughterhouse and from the resources to the slaughterhouse is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and in particular relates to a slaughterhouse sewage resource treatment system. Background Art

[0002] With economic development and improved living standards, demand for meat products is increasing. This massive market has fueled a booming slaughtering industry. However, the proportion of slaughterhouse wastewater in total industrial wastewater emissions is also rapidly increasing. Slaughterhouse wastewater, originating from the slaughtering and processing of livestock and poultry, is a significant source of organic pollution. According to surveys, slaughterhouse wastewater accounts for approximately 6% of national industrial wastewater emissions, and pollution is on the rise. Due to its high concentration of organic matter, resistance to degradation, and difficulty in treatment, untreated slaughterhouse wastewater can cause significant pollution to the aquatic environment. Proper treatment and effective utilization of slaughterhouse wastewater can significantly contribute to alleviating the water crisis.

[0003] In the related existing technology, it is usually composed of a screen, a regulating tank and a sewage purification tank. After the wastewater from the slaughterhouse is separated into solid and liquid, it is adjusted in the regulating tank and reused after the sewage is purified.

[0004] Among the above-mentioned existing technologies, the wastewater treatment technology of slaughterhouses has a very low resource utilization rate for organic wastewater, and the emission treatment is only satisfied with treating the emissions to meet the standards; moreover, most of the intermediate emission by-products are directly discharged into the sewer after simple treatment, and are not reasonably utilized and cannot be recycled. Summary of the Invention

[0005] The embodiment of the present invention provides a slaughterhouse wastewater resource treatment system, which aims to solve the problems of low resource utilization rate of wastewater treatment in existing slaughterhouses and under-utilization of most of the intermediate discharge byproducts.

[0006] In view of the above problems, the technical solution proposed by the present invention is: A slaughterhouse wastewater resource treatment system, comprising: A pretreatment subsystem, the pretreatment subsystem comprising a grille and a regulating tank, the grille being mounted on the regulating tank; a standard-reaching treatment subsystem, the standard-reaching treatment subsystem comprising an anaerobic fermentation tank and a sewage treatment device, the anaerobic fermentation tank being connected to the regulating tank via a pipeline, and the sewage treatment device being connected to the anaerobic fermentation tank via a pipeline; A resource utilization subsystem includes a waste fermentation tank, a biogas generator and a water-fertilizer integrated machine. The waste fermentation tank is configured to ferment the solid waste separated by the solid-liquid separation of the grid to obtain usable organic fertilizer. The biogas generator is configured to generate electricity from the biogas collected by anaerobic fermentation in the anaerobic fermentation tank to obtain usable electric energy. The water-fertilizer integrated machine is configured to mix the biogas collected by filtration of the sewage treatment equipment with the usable organic fertilizer to obtain usable water-fertilizer.

[0007] Furthermore, the sewage treatment equipment includes a sedimentation tank, a bridge plate, a scum blocking component, a sludge scraping driving component, a perforated baffle and a sludge scraping component. A sludge discharge funnel is formed in the sedimentation tank, the sludge discharge funnel has a through central through hole, the end of the central through hole away from the bridge plate is connected to a sewage inlet pipe, the side wall of the sludge discharge funnel has a through sludge discharge pipe, a drainage channel is formed on the side of the sedimentation tank away from the sludge discharge funnel, the side wall of the sedimentation tank has a drainage port connected to the drainage channel, the bridge plate is erected in the sedimentation tank, the bridge plate, the sludge blocking component and the sludge scraping component are arranged in the sedimentation tank in sequence, the sludge scraping driving component is arranged on the bridge plate, and one end of the sludge scraping driving component is connected to the central through hole, the perforated baffle is arranged outside the sludge scraping driving component, and the perforated baffle is detachably connected to the bridge plate, and the sludge scraping component is connected to the sludge scraping driving component.

[0008] Furthermore, the scum blocking assembly includes a scum baffle, an overflow plate and a support rod, the scum baffle and the overflow plate are arranged in sequence along the drainage channel, and an overflow channel is formed between the scum baffle and the overflow plate, a plurality of support rods are arranged at circumferential intervals along the scum baffle, and a plurality of the support rods are located below the overflow plate, and the plurality of support rods are detachably connected to the sedimentation tank.

[0009] Furthermore, the mud scraping drive component includes a drive shaft, a delivery pipe, a sleeve and a first drive mechanism, one end of the delivery pipe is fixed to the drive shaft, the other end of the delivery pipe is rotatably connected to the center through hole, and a plurality of first sewage outlets are arranged at circumferential intervals along the delivery pipe, the sleeve is arranged at a position of the delivery pipe close to the plurality of first sewage outlets, and a plurality of second sewage outlets are arranged at circumferential intervals along the sleeve, the first drive mechanism is mounted on the bridge plate, and the output end of the first drive mechanism is fixed to the drive shaft.

[0010] Furthermore, the plurality of second sewage outlets form a certain rotation direction around the axis of the sleeve.

[0011] Furthermore, the scraping component includes a connecting frame, at least two transmission brackets, at least two first rope brackets, a second rope bracket and a first scraping blade. At least two of the transmission brackets are connected to the connecting frame through one first rope bracket, and at least two of the transmission brackets are connected through the second rope bracket. Each transmission bracket is close to the bottom of the sedimentation tank and a plurality of the first scraping blades are arranged at intervals along the mud discharge funnel, and a mud discharge channel is formed between each adjacent two first scraping blades. The plurality of first scraping blades form an arc structure, and the plurality of first scraping blades form a certain rotation direction around the axis of the mud discharge funnel.

[0012] Furthermore, the mud scraping component includes at least two third rope racks and at least two second mud scraping blades, and the second mud scraping blade is fixed to a side of each transmission bracket close to the mud discharge funnel through the third rope rack.

[0013] Furthermore, the standard processing subsystem includes a slag discharge box and a scraper plate. The slag discharge box is arranged between the slag baffle and the perforated baffle. The scraper plate is sleeved on the conveying pipe, and the scraper plate is above the perforated baffle. The slag discharge box has an inclined inclined plate. The bottom of the slag discharge box is connected to a slag discharge pipe, and the slag discharge pipe passes through the sedimentation tank and extends outside the sedimentation tank.

[0014] Furthermore, the position of the scraper plate is higher than that of the slag discharge box.

[0015] Furthermore, the standard-reaching treatment subsystem includes a photoelectrocatalytic wastewater purification device, which includes a reaction tank, a titanium dioxide nano-photocatalytic mesh plate, a carbon sheet, an electrical box, an automatic aeration component and an automation device. The titanium dioxide nano-photocatalytic mesh plate and the carbon sheet are arranged in the reaction tank in sequence along the vertical direction, and the electrical box is installed on the reaction tank. The automatic aeration component includes a blower, a second drive mechanism and a concentration analysis detector. The output end of the blower is connected to the reaction tank through a pipeline, and the output end of the second drive mechanism is connected to the input end of the blower. The concentration analysis detector is arranged in the reaction tank. The titanium dioxide nano-photocatalytic mesh plate, the carbon sheet, the blower, the second drive mechanism and the concentration analysis detector are all electrically connected to the automation device, and the automation device is located in the electrical box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) This application will fully tap the resources in the sewage treatment process and reuse them in the slaughterhouse and its ecosystem, achieving zero-pollution high-cycle emissions with emissions coming from the slaughterhouse and resources used in the slaughterhouse.

[0017] (2) When the connecting frame and each transmission bracket of the present application rotate, the sludge can be gradually moved from the side wall of the sedimentation tank along the sludge discharge funnel through the cooperation of each first scraper and each sludge discharge channel. This can prevent the first scraper from being broken due to concentrated force.

[0018] (3) When the second scraper blades of the present application rotate, the sludge can be stirred to prevent the sludge from accumulating in the sludge discharge funnel and clogging the sludge discharge pipe.

[0019] (4) When the conveying pipe of the present application rotates, it can drive the scraper plate to rotate synchronously, and the scum is pushed into the scum discharge box by the scraper plate, thereby removing the scum.

[0020] (5) If the pollutant concentration in the reaction pool of the concentration analyzer of this application is greater than a preset value, the automated device controls the second drive mechanism to increase the blower operating power, promote water flow, expand the contact area between the titanium dioxide nano-photocatalytic screen and the pollutants in the sewage, improve the photoelectrocatalytic performance, and enhance the ability to degrade pollutants; if the concentration is lower than the preset value, the automated device controls the blower operating power to reduce electricity costs. The voltage of the titanium dioxide nano-photocatalytic screen and the carbon sheet can be controlled by the automated device, and the adjustment of the photoelectrocatalytic performance can achieve the best photoelectrocatalytic performance while saving electricity costs.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a slaughterhouse wastewater resource treatment system disclosed in the present invention; Figure 2 It is a general assembly drawing of the sewage treatment equipment disclosed in the present invention; Figure 3 It is an assembly diagram of the scum blocking component and the mud scraping driving component disclosed in the present invention; Figure 4 It is a structural schematic diagram of the slag discharge box disclosed in the present invention; Figure 5 This is an assembly drawing of the mud scraper component disclosed in the present invention; Figure 6 yes Figure 5 A partial enlarged view of the middle A; Figure 7 It is a structural schematic diagram of the sedimentation tank disclosed in the present invention; Figure 8 It is a structural schematic diagram of the photoelectrocatalytic sewage purification equipment disclosed in the present invention.

[0023] Explanation of reference numerals: 10, pretreatment subsystem; 11, grille; 12, regulating tank; 20, standard treatment subsystem; 21, anaerobic fermentation tank; 22, sewage treatment equipment; 221, sedimentation tank; 2211, sludge discharge funnel; 2212, central through hole; 2213, sewage inlet pipe; 2214, sludge discharge pipe; 2215, drainage channel; 2216, drainage outlet; 222, bridge plate; 223, scum blocking component; 2231, baffle; 2232, overflow plate; 2233, support rod; 224, sludge scraping drive component; 2241, drive shaft; 2242, delivery pipe; 22421, first sewage outlet; 2243, sleeve; 22431, second sewage outlet; 2244, first driving mechanism; 225, perforated baffle; 226, sludge scraping component; 226 1. Connecting frame; 2262. Transmission bracket; 2263. First rope rack; 2264. Second rope rack; 2265. First scraper; 22651. Mud discharge channel; 2266. Third rope rack; 2267. Second scraper; 227. Slag discharge box; 2271. Inclined plate; 2272. Slag discharge pipe; 228. Slag scraper; 23. Photoelectrocatalytic wastewater purification equipment; 231. Reaction tank; 232. Titanium dioxide nano-photocatalytic mesh; 233. Carbon sheet; 234. Electrical box; 235. Automatic aeration assembly; 2351. Blower; 2352. Second drive mechanism; 2353. Concentration analyzer; 236. Automation equipment; 30. Resource utilization subsystem; 31. Waste fermentation tank; 32. Biogas generator; 33. Water and fertilizer integrated machine. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined. Example

[0029] Refer to the attached Figures 1 to 7 As shown, the present invention provides a technical solution: a slaughterhouse wastewater resource treatment system, comprising a pretreatment subsystem 10, a standard treatment subsystem 20 and a resource utilization subsystem 30, the pretreatment subsystem 10 includes a grille 11 and a regulating tank 12, the grille 11 is mounted on the regulating tank 12; the standard treatment subsystem 20 includes an anaerobic fermentation tank 21 and a sewage treatment device 22, the anaerobic fermentation tank 21 is configured to be connected to the regulating tank 12 through a pipeline, and the sewage treatment device 22 is configured to be connected to the anaerobic fermentation tank 21 through a pipeline; the resource utilization subsystem 30 includes a waste fermentation tank 31, a biogas generator 32 and a water and fertilizer integrated machine 33, the waste fermentation tank 31 is configured to ferment the solid waste separated by the solid-liquid separation of the grille 11 to obtain usable organic fertilizer, the biogas generator 32 is configured to generate electricity with the biogas collected by anaerobic fermentation in the anaerobic fermentation tank 21 to obtain usable electric energy, and the water and fertilizer integrated machine 33 is configured to mix the biogas collected by filtration of the sewage treatment device 22 with the usable organic fertilizer to obtain usable water and fertilizer.

[0030] According to this embodiment, when slaughterhouse wastewater is discharged to regulating tank 12, it first passes through screen 11 for solid-liquid separation, and then is treated in regulating tank 12. The solid waste separated by screen 11 can be transported to waste fermentation tank 31 for fermentation to produce usable organic fertilizer, which can be used to fertilize agricultural products. After the wastewater from regulating tank 12 is treated, it is discharged to anaerobic fermentation tank 21. The biogas generated by the anaerobic fermentation of the wastewater can be transported to biogas generator 32 to generate usable electricity, which can be used to power various devices and can also be transmitted to the power grid company. The biogas liquid collected by anaerobic fermentation in the anaerobic fermentation tank 21 can be transported to the sewage treatment equipment 22 for dredging. A portion of the biogas liquid can be transported to the water-fertilizer integrated machine 33 and mixed with available organic fertilizer to form usable water-fertilizer for irrigation of agricultural products; the other portion of the biogas liquid is transported to the photoelectrocatalytic sewage purification equipment 23 for pollutant degradation treatment to obtain usable clean water, which can not only be transported to the slaughterhouse for use, but also can be used to irrigate agricultural products.

[0031] Therefore, compared with the existing technology, this application will fully tap the resources in the sewage treatment process and reuse them in the slaughterhouse and its ecosystem, achieving zero-pollution high-cycle emissions with emissions coming from the slaughterhouse and resources used in the slaughterhouse.

[0032] Refer to the attached Figures 1 to 7 As shown, in some embodiments, the sewage treatment equipment 22 includes a sedimentation tank 221, a bridge plate 222, a scum blocking component 223, a mud scraping driving component 224, a perforated baffle 225 and a mud scraping component 226. A mud discharge funnel 2211 is formed in the sedimentation tank 221, and the mud discharge funnel 2211 has a through central through hole 2212. The end of the central through hole 2212 away from the bridge plate 222 is connected to the sewage inlet pipe 2213. A through mud discharge pipe 2214 is provided on the side wall of the mud discharge funnel 2211. A drainage channel 2214 is formed on the side of the sedimentation tank 221 away from the mud discharge funnel 2211. 215. The side wall of the sedimentation tank 221 has a drain outlet 2216 connected to the drain channel 2215. The bridge plate 222 is erected in the sedimentation tank 221. The bridge plate 222, the scum blocking component 223 and the mud scraping component 226 are sequentially arranged in the sedimentation tank 221. The mud scraping driving component 224 is arranged on the bridge plate 222, and one end of the mud scraping driving component 224 is connected to the central through hole 2212. The perforated baffle 225 is arranged outside the mud scraping driving component 224, and the perforated baffle 225 is detachably connected to the bridge plate 222. The mud scraping component 226 is connected to the mud scraping driving component 224.

[0033] According to this embodiment, the biogas discharged from the anaerobic fermentation tank 21 first enters the coagulation and sedimentation tank for coagulation and sedimentation, then enters the sewage inlet pipe 2213, flows upward along the sludge scraper drive component 224, and then flows between the sludge scraper drive component 224 and the perforated baffle 225 to the bottom of the sedimentation tank 221. During this period, as the biogas continues to be input, the sludge gradually settles at the bottom of the sedimentation tank 221, and gradually flows upward to the top of the sedimentation tank 221. After the sludge in the clean water is blocked by the scum blocking assembly, the biogas flows into the drainage channel 2215 and is discharged through the drainage port 2216. After the sludge accumulates to a certain height in the sedimentation tank 221, the sludge scraper drive component 224 drives the sludge scraper component 226 to gradually push the sludge into the sludge discharge funnel 2211, and the sludge is discharged through the sludge discharge pipe 2214.

[0034] Refer to the attached Figures 2 and 3 As shown, in some embodiments, the scum blocking assembly includes a scum baffle 2231, an overflow plate 2232 and a support rod 2233. The scum baffle 2231 and the overflow plate 2232 are arranged in sequence along the drainage channel 2215, and an overflow channel is formed between the scum baffle 2231 and the overflow plate 2232. A plurality of support rods 2233 are arranged at circumferential intervals along the scum baffle 2231, and the plurality of support rods 2233 are located below the overflow plate 2232. The plurality of support rods 2233 are detachably connected to the sedimentation tank 221.

[0035] According to this embodiment, as the biogas slurry flows upward in the sedimentation tank 221, the scum baffle 2231 isolates larger scum, confining it within the circular scum baffle 2231. The biogas slurry overflows the overflow channel and simultaneously flows over the overflow plate 2232 into the drainage channel 2215. During this process, the serrated top of the overflow plate 2232 blocks smaller scum in the sedimentation tank 221, achieving better separation.

[0036] Refer to the attached Figures 2 and 3 As shown, in some embodiments, the mud scraping drive component 224 includes a drive shaft 2241, a delivery pipe 2242, a sleeve 2243 and a first drive mechanism 2244, one end of the delivery pipe 2242 is fixed to the drive shaft 2241, the other end of the delivery pipe 2242 is rotatably connected to the center through hole 2212, and a plurality of first sewage outlets 22421 are arranged at circumferential intervals along the delivery pipe 2242, the sleeve 2243 is arranged at a position of the delivery pipe 2242 close to the plurality of first sewage outlets 22421, and a plurality of second sewage outlets 22431 are arranged at circumferential intervals along the sleeve 2243, the first drive mechanism 2244 is installed on the bridge plate 222, and the output end of the first drive mechanism 2244 is fixed to the drive shaft 2241.

[0037] Illustratively, the perforated baffle 225 is located outside the sleeve 2243 .

[0038] According to this embodiment, the delivery pipe 2242 can realize two functions. One is to realize the delivery of sludge into the sedimentation tank 221 through the cooperation among the sewage inlet pipe 2213, the central through hole 2212, the delivery pipe 2242, the first sewage outlet 22421, the sleeve 2243, and the second sewage outlet 22431; the other is to realize the rotation of the delivery pipe 2242 and the mud scraping component 226 through the cooperation between the first driving mechanism 2244 and the delivery pipe 2242, so as to clean the sludge at the bottom of the sedimentation tank 221.

[0039] Refer to the attached Figure 3 As shown, in some embodiments, the plurality of second sewage outlets 22431 form a certain rotation direction around the axis of the sleeve 2243 .

[0040] Exemplarily, the rotation direction formed by the plurality of second sewage outlets 22431 is associated with the rotation direction of the delivery pipe 2242 .

[0041] According to this embodiment, when the delivery pipe 2242 and the sleeve 2243 rotate, the biogas slurry enters the sleeve 2243 from the first sewage outlet 22421. Due to the centrifugal effect, the biogas slurry is ejected from the second sewage outlet 22431 in the direction of rotation. The perforated baffle 225 blocks the biogas slurry, causing it to flow toward the bottom of the sedimentation tank 221.

[0042] Refer to the attached Figure 5 As shown, in some embodiments, the conventional scraping member 226 includes a large arc-shaped scraper blade disposed below each transmission bracket 2262. When the amount of sludge is large, the sludge is concentrated on the arc portion of the scraper blade. This uneven force on the scraper blade over a long period of use can easily cause the arc portion of the scraper blade to break. Therefore, the mud scraping component 226 includes a connecting frame 2261, at least two transmission brackets 2262, at least two first rope racks 2263, a second rope rack 2264 and a first mud scraper 2265. At least two transmission brackets 2262 are connected to the connecting frame 2261 through a first rope rack 2263, and at least two transmission brackets 2262 are connected through a second rope rack 2264. Each transmission bracket 2262 is close to the bottom of the sedimentation tank 221 and a plurality of first mud scrapers 2265 are arranged at intervals along the mud discharge funnel 2211. A mud discharge channel 22651 is formed between each adjacent two first mud scrapers 2265. The plurality of first mud scrapers 2265 form an arc structure, and the plurality of first mud scrapers 2265 form a certain rotation direction around the axis of the mud discharge funnel 2211.

[0043] Exemplarily, the rotation direction of the plurality of first scraper blades 2265 is associated with the rotation direction of the delivery tube 2242 .

[0044] According to this embodiment, when the connecting frame 2261 and the transmission brackets 2262 rotate, the first scrapers 2265 cooperate with the mud discharge channels 22651 to gradually move the mud from the sidewall of the sedimentation tank 221 along the mud discharge funnel 2211. This can prevent the first scrapers 2265 from being broken due to concentrated force.

[0045] Refer to the attached Figure 5 As shown, in some embodiments, the scraping component 226 includes at least two third rope racks 2266 and at least two second scraping blades 2267 , and a second scraping blade 2267 is fixed to the side of each transmission bracket 2262 close to the mud discharge funnel 2211 through the third rope rack 2266 .

[0046] According to this embodiment, when each second scraper blade 2267 rotates, it can stir the sludge to prevent the sludge from accumulating in the sludge discharge funnel 2211 and clogging the sludge discharge pipe 2214 .

[0047] Refer to the attached Figures 3 and 4 As shown, in some embodiments, the standard-reaching processing subsystem 20 includes a slag box 227 and a slag scraper 228. The slag box 227 is disposed between the slag baffle 2231 and the perforated baffle 225. The slag scraper 228 is sleeved on the conveying pipe 2242 and is above the perforated baffle 225. The slag box 227 has an inclined inclined plate 2271. The bottom of the slag box 227 is connected to a slag discharge pipe 2272, which passes through the sedimentation tank 221 and extends outside the sedimentation tank 221. In this embodiment, the slag scraper 228 is located higher than the slag box 227.

[0048] According to this embodiment, when the conveying pipe 2242 rotates, it can drive the scraper plate 228 to rotate synchronously, and the scum is pushed into the scum discharge box 227 by the scraper plate 228, thereby removing the scum.

[0049] Refer to the attached Figure 8As shown, in some embodiments, the standard treatment subsystem 20 includes a photoelectrocatalytic wastewater purification device 23, which includes a reaction tank 231, a titanium dioxide nano-photocatalytic mesh plate 232, a carbon sheet 233, an electrical box 234, an automatic aeration component 235 and an automated device 236. The titanium dioxide nano-photocatalytic mesh plate 232 and the carbon sheet 233 are arranged in the reaction tank 231 in sequence along the vertical direction, the electrical box 234 is installed on the reaction tank 231, and the automatic aeration component 235 includes a blower 2351, The second driving mechanism 2352 and the concentration analysis detector 2353, the output end of the blower 2351 is connected to the reaction tank 231 through a pipeline, the output end of the second driving mechanism 2352 is connected to the input end of the blower 2351, the concentration analysis detector 2353 is arranged in the reaction tank 231, the titanium dioxide nano-photocatalytic mesh plate 232, the carbon sheet 233, the blower 2351, the second driving mechanism 2352 and the concentration analysis detector 2353 are all electrically connected to the automation equipment 236, and the automation equipment 236 is located in the electrical box 234.

[0050] For example, the automation device 236 may be a controller or the like.

[0051] According to this embodiment, under natural light, photogenerated electrons on the titanium dioxide nanophotocatalytic mesh 232 are transferred to the cathode through an external circuit under bias, generating a large amount of active OH on the carbon sheet 233, which oxidizes and degrades organic pollutants in the wastewater. When the biogas slurry from the sedimentation tank 221 is transported to the reaction tank 231, the concentration analyzer 2353 measures the pollutant concentration in the reaction tank 231. If the pollutant concentration is greater than a preset value, the automated device 236 controls the second drive mechanism 2352 to increase the operating power of the blower 2351, promoting water flow and expanding the contact area between the titanium dioxide nanophotocatalytic mesh 232 and the pollutants in the wastewater, thereby improving the photoelectrocatalytic performance and enhancing the pollutant degradation capability. If the concentration is lower than the preset value, the automated device 236 controls the operating power of the blower 2351 to reduce electricity costs. The automated device 236 can control the voltage between the titanium dioxide nanophotocatalytic mesh 232 and the carbon sheet 233, adjusting the photoelectrocatalytic performance to achieve optimal photoelectrocatalytic performance while saving electricity costs.

[0052] In the above description, the first driving mechanism 2244 and the second driving mechanism 2352 are motors; for example, a reduction motor, a stepping motor, or a servo motor.

[0053] It should be noted that the model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0054] The power supply of the motor and its principle are clear to those skilled in the art and will not be described in detail here.

[0055] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A slaughterhouse wastewater resource treatment system, characterized in that: include: A pretreatment subsystem (10), the pretreatment subsystem (10) comprising a grille (11) and a regulating tank (12), the grille (11) being mounted on the regulating tank (12); a standard-reaching treatment subsystem (20), the standard-reaching treatment subsystem (20) comprising an anaerobic fermentation tank (21) and a sewage treatment device (22), the anaerobic fermentation tank (21) being configured to be connected to the regulating tank (12) via a pipeline, and the sewage treatment device (22) being configured to be connected to the anaerobic fermentation tank (21) via a pipeline; A resource utilization subsystem (30) includes a waste fermentation tank (31), a biogas generator (32) and a water-fertilizer integrated machine (33). The waste fermentation tank (31) is configured to ferment the solid waste separated by solid-liquid separation of the grid (11) to obtain usable organic fertilizer. The biogas generator (32) is configured to generate electricity from the biogas collected by anaerobic fermentation in the anaerobic fermentation tank (21) to obtain usable electric energy. The water-fertilizer integrated machine (33) is configured to mix the biogas collected by filtration in the sewage treatment equipment (22) with the usable organic fertilizer to obtain usable water fertilizer.

2. The slaughterhouse wastewater resource treatment system according to claim 1, characterized in that: The sewage treatment equipment (22) comprises a sedimentation tank (221), a bridge plate (222), a scum blocking component (223), a sludge scraping driving component (224), a perforated baffle (225), and a sludge scraping component (226). A sludge discharge funnel (2211) is formed in the sedimentation tank (221). The sludge discharge funnel (2211) has a through central through hole (2212). An end of the central through hole (2212) away from the bridge plate (222) is connected to a sewage inlet pipe (2213). A through sludge discharge pipe (2214) is provided on the side wall of the sludge discharge funnel (2211). A drainage channel (2215) is formed on the side of the sedimentation tank (221) away from the sludge discharge funnel (2211). The side wall has a drainage port (2216) connected to the drainage channel (2215); the bridge plate (222) is mounted in the sedimentation tank (221); the bridge plate (222), the scum blocking component (223) and the mud scraping component (226) are sequentially arranged in the sedimentation tank (221); the mud scraping driving component (224) is arranged on the bridge plate (222), and one end of the mud scraping driving component (224) is connected to the central through hole (2212); the perforated baffle (225) is arranged outside the mud scraping driving component (224), and the perforated baffle (225) is detachably connected to the bridge plate (222); and the mud scraping component (226) is connected to the mud scraping driving component (224).

3. The slaughterhouse wastewater resource treatment system according to claim 2, characterized in that: The scum blocking assembly comprises a scum baffle (2231), an overflow plate (2232) and a support rod (2233); the scum baffle (2231) and the overflow plate (2232) are arranged in sequence along the drainage channel (2215), and an overflow channel is formed between the scum baffle (2231) and the overflow plate (2232); a plurality of support rods (2233) are arranged at intervals along the circumference of the scum baffle (2231), and the plurality of support rods (2233) are located below the overflow plate (2232); and the plurality of support rods (2233) are detachably connected to the sedimentation tank (221).

4. The slaughterhouse wastewater resource treatment system according to claim 3 is characterized in that: The mud scraping drive component (224) includes a drive shaft (2241), a delivery pipe (2242), a sleeve (2243) and a first drive mechanism (2244). One end of the delivery pipe (2242) is fixed to the drive shaft (2241), and the other end of the delivery pipe (2242) is rotatably connected to the central through hole (2212). A plurality of first sewage outlets (22421) are arranged at intervals along the circumference of the delivery pipe (2242). The sleeve (2243) is arranged at a position of the delivery pipe (2242) close to the plurality of first sewage outlets (22421), and a plurality of second sewage outlets (22431) are arranged at intervals along the circumference of the sleeve (2243). The first drive mechanism (2244) is mounted on the bridge plate (222), and the output end of the first drive mechanism (2244) is fixed to the drive shaft (2241).

5. The slaughterhouse wastewater resource treatment system according to claim 4, characterized in that: The plurality of second sewage outlets (22431) form a certain rotation direction around the axis of the sleeve (2243).

6. The slaughterhouse wastewater resource treatment system according to claim 5, characterized in that: The mud scraping component (226) includes a connecting frame (2261), at least two transmission brackets (2262), at least two first rope brackets (2263), a second rope bracket (2264) and a first mud scraping blade (2265). At least two transmission brackets (2262) are connected to the connecting frame (2261) via one first rope bracket (2263), and at least two transmission brackets (2262) are connected via the second rope bracket (2264). A plurality of first mud scraping blades (2265) are arranged at intervals along the mud discharge funnel (2211) on one side of each transmission bracket (2262) close to the bottom of the sedimentation tank (221), and a mud discharge channel (22651) is formed between each adjacent two first mud scraping blades (2265). The plurality of first mud scraping blades (2265) form an arc structure, and the plurality of first mud scraping blades (2265) form a certain rotation direction around the axis of the mud discharge funnel (2211).

7. The slaughterhouse wastewater resource treatment system according to claim 6, characterized in that: The mud scraping component (226) comprises at least two third rope racks (2266) and at least two second mud scraping blades (2267); the second mud scraping blade (2267) is fixed to a side of each transmission bracket (2262) close to the mud discharge funnel (2211) via the third rope rack (2266).

8. The slaughterhouse wastewater resource treatment system according to claim 7, characterized in that: The standard-reaching treatment subsystem (20) includes a slag discharge box (227) and a slag scraper (228). The slag discharge box (227) is arranged between the slag baffle (2231) and the perforated baffle (225). The slag scraper (228) is sleeved on the conveying pipe (2242), and the slag scraper (228) is above the perforated baffle (225). The slag discharge box (227) has an inclined inclined plate (2271). The bottom of the slag discharge box (227) is connected to a slag discharge pipe (2272). The slag discharge pipe (2272) passes through the sedimentation tank (221) and extends outside the sedimentation tank (221).

9. The slaughterhouse wastewater resource treatment system according to claim 8, characterized in that: The position of the scraper plate (228) is higher than the position of the slag discharge box (227).

10. The slaughterhouse wastewater resource treatment system according to any one of claims 1 to 9, characterized in that: The standard treatment subsystem (20) includes a photoelectrocatalytic wastewater purification device (23), the photoelectrocatalytic wastewater purification device (23) includes a reaction tank (231), a titanium dioxide nano-photocatalytic mesh plate (232), a carbon sheet (233), an electrical box (234), an automatic air aeration component (235) and an automatic device (236), wherein the titanium dioxide nano-photocatalytic mesh plate (232) and the carbon sheet (233) are arranged in sequence in the reaction tank (231) along a vertical direction, the electrical box (234) is installed on the reaction tank (231), the automatic air aeration component (235) includes a blower (2351), a second drive mechanism (2352), and a second air aeration component (2353). ) and a concentration analysis detector (2353), the output end of the blower (2351) is connected to the reaction pool (231) through a pipeline, the output end of the second driving mechanism (2352) is connected to the input end of the blower (2351), the concentration analysis detector (2353) is arranged in the reaction pool (231), the titanium dioxide nano-photocatalytic mesh plate (232), the carbon sheet (233), the blower (2351), the second driving mechanism (2352) and the concentration analysis detector (2353) are all electrically connected to the automation equipment (236), and the automation equipment (236) is located in the electrical box (234).

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