A device and method for co-treatment of solid waste and domestic sewage

Abstract

The present application relates to the technical field of domestic waste treatment, and particularly relates to a device for jointly treating solid waste and domestic sewage, which comprises a barrel body, a reaction cavity for reaction of the solid waste and the domestic sewage, an input port on the top surface of the barrel body for input of the solid waste, a domestic sewage treatment mechanism for treating the domestic sewage, the domestic sewage treatment mechanism being arranged in the reaction cavity of the barrel body, and a solid waste treatment mechanism for treating the solid waste and supplying heat generated in the reaction of the solid waste to the domestic sewage treatment mechanism, the solid waste treatment mechanism being installed in the reaction cavity of the barrel body, the device being simple in structure and having no too precise parts, the device being capable of simultaneously treating domestic sewage and completing a composting process, heat of the composting process being capable of promoting degradation of the sewage, and a coil pipe of the sewage treatment mechanism being capable of taking away heat of composting.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of domestic waste treatment, in particular to a solid waste and domestic sewage co-treatment device and a solid waste and domestic sewage co-treatment method. BACKGROUND

[0002] For a long time, the problem of arbitrary discharge of most rural domestic waste, domestic sewage, livestock breeding and agricultural waste is serious, and the formation of these village problems is inseparable from pollution. The pollution in rural areas comes from the following aspects, (1) water pollution becomes the most important pollution. At present, there are two aspects that cause rural water pollution, industrial wastewater pollution and agricultural pollution, among which industrial pollution has relevant legal constraints and has been well controlled. However, the treatment of rural domestic sewage still has problems. (2) Solid waste pollution spreads to rural areas. The solid waste of agriculture and rural areas includes straw, human and animal excrement, kitchen garbage and the like in production. If not removed in time, it will cause serious pollution to the atmosphere, soil and water, and spread diseases rapidly, endangering human health.

[0003] The domestic waste water in remote rural areas often faces the following problems in the treatment process: not clean or complex treatment facilities. At present, some integrated rural domestic sewage treatment facilities have complex structure, many internal parts and exquisite design, and in the process of treating sewage, slight carelessness will damage or cause structural dislocation, resulting in frequent failure or complete failure of the entire treatment facility, and the treatment facility can only handle single material. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the problem of the existing integrated rural domestic sewage treatment facility, which has complex structure, many internal parts and exquisite design, and in the process of treating sewage, slight carelessness will damage or cause structural dislocation, resulting in frequent failure or complete failure of the entire treatment facility, and the treatment facility can only handle single material, and to provide a solid waste and domestic sewage co-treatment device.

[0005] The technical solution adopted by the present application to solve the technical problem is: a solid waste and domestic sewage co-treatment device, comprising:

[0006] A barrel body has a reaction cavity for reaction of solid waste and domestic sewage, and the top surface of the barrel body has an input port for input of solid waste;

[0007] A domestic sewage treatment mechanism is arranged in the reaction cavity of the barrel body for treating domestic sewage.

[0008] And a solid waste treatment mechanism for treating solid waste and supplying heat generated in the reaction process of the solid waste to the domestic sewage treatment mechanism, the solid waste treatment mechanism being installed in the reaction cavity of the barrel body, the device is simple in structure and has no too precise parts, and the device is simple in daily operation and can be fully automated without operation control.

[0009] The device can treat domestic wastewater and complete the composting process, and the heat of the composting process can promote the degradation of the wastewater, and the wastewater treatment coil can also take away the composting heat.

[0010] In order to solve the problem of how to treat domestic sewage, the domestic sewage treatment mechanism further comprises an outer coil, an inner coil, an air pipe and a throat pipe, the input end of the outer coil extends to the outside of the barrel body, the output end of the outer coil is connected with the input end of the throat pipe, the output end of the throat pipe is connected with the input end of the inner coil, the output end of the inner coil extends to the outside of the barrel body, the input end of the air pipe extends to the outside of the barrel body, the output end of the air pipe is connected with the throat pipe, the outer coil forms an anaerobic reaction zone, and the inner coil forms an aerobic reaction zone.

[0011] In order to solve the problem of insufficient negative pressure environment pressure, the outer coil has a diameter greater than that of the inner coil, and the ratio of the diameter of the outer coil to the diameter of the inner coil is 5:3-4.

[0012] The inner coil further comprises a filler in the form of a brush.

[0013] In order to solve the problem of how to treat and separate the waste after the composting of solid waste, the solid waste treatment mechanism further comprises a screen, a screw feeder and a lifting pump, the screen is installed in the reaction cavity of the barrel body, the screen is used to support the solid waste and screen out the liquid in the solid waste, the screen is located below the domestic sewage treatment mechanism, the lifting pump is arranged below the screen, the lifting pump is used to extract the fermentation liquid at the bottom of the reaction cavity of the barrel body, a lifting pipe is installed on the output end of the lifting pump, the output end of the lifting pipe extends to the outside of the barrel body, the screw feeder is fixedly connected with the barrel body, the screw feeder is used to output the fertilizer produced by the solid waste, and the screw feeder is located above the screen.

[0014] The barrel body is further provided with a feeding hopper installed on the top surface, the output end of the feeding hopper is connected with the input port, and a spring door is arranged in the output end of the feeding hopper.

[0015] In order to solve the common inconvenience of solid waste and domestic sewage, further including a solid waste and domestic sewage common treatment method, applied to a solid waste and domestic sewage common treatment device, when operating, first inject domestic wastewater into the inner coil, form biological membrane on the surface of the filler in the inner coil after 7-15 days, after the membrane formation, inject the domestic wastewater to be treated from the outer coil into the outer coil, and the small molecule organic matter formed by anaerobic action in the outer coil is completely biodegraded in the aerobic reaction zone in the inner coil.

[0016] At the same time, the solid waste generated by life can be added to the barrel from the feed hopper of the barrel, and the composting effect is formed in the barrel, and the fermentation liquor formed at the bottom of the barrel is lifted out by the lifting pump and directly mixed with water for farmland fertilization, and the fertilizer formed after the composting for a period of time is lifted out by the spiral feeder and used for fertilization.

[0017] The beneficial effects of the present application are that the solid waste and domestic sewage common treatment device provided by the present application,

[0018] 1. The device has simple structure and no too precise parts, and the daily operation of the device is simple, and no operation control is needed, so that complete automation can be realized.

[0019] 2. The device can treat domestic wastewater and complete composting process at the same time, and the heat of the composting process can promote wastewater degradation, and the wastewater treatment coil can also take away the composting heat. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in combination with the drawings and examples.

[0021] Figure 1 is a structural schematic diagram of the present application.

[0022] In the figure: 1, barrel, 11, reaction chamber, 12, feed hopper, 13, spring door, 2, domestic sewage treatment mechanism, 21, outer coil, 22, inner coil, 221, filler, 23, air pipe, 24, throat pipe, 3, solid waste treatment mechanism, 31, screen, 32, spiral feeder, 33, lifting pump, 331, lifting pipe. DETAILED DESCRIPTION

[0023] The present application will be further described below in combination with the drawings and examples.

[0024] As Figure 1 is a structural schematic diagram of the present application, a solid waste and domestic sewage common treatment device, comprising:

[0025] The barrel 1 has a reaction chamber 11 for reacting solid waste and domestic sewage. The top surface of the barrel 1 has an inlet for inputting solid waste, such as straw, human and animal excrement, and kitchen waste. A feeding hopper 12 is installed on the top surface of the barrel 1. The output end of the feeding hopper 12 is connected to the inlet. A spring door 13 is arranged inside the output end of the feeding hopper 12 so that the reaction chamber 11 can be isolated from the outside after the solid waste enters into it, thereby reducing the emission of odor from the solid waste.

[0026] like Figure 1 As shown, the domestic sewage treatment unit 2 is used to treat domestic sewage. The domestic sewage treatment unit 2 is arranged in the reaction chamber 11 of the tank 1.

[0027] The domestic sewage treatment unit 2 includes an outer coil 21, an inner coil 22, an air pipe 23, and a throat 24. The inlet end of the outer coil 21 extends to the outside of the tank body 1. The outer coil 21 is distributed around the inner coil 22. Both the outer coil 21 and the inner coil 22 have a spiral structure. The outlet end of the outer coil 21 is connected to the inlet end of the throat 24, and the outlet end of the throat 24 is connected to the inlet end of the inner coil 22. The outlet end of the inner coil 22 extends to the outside of the tank body 1. The inlet end of the air pipe 23 extends to... On the outside of the tank body 1, the output end of the trachea 23 is connected to the middle of the throat tube 24. The outer coil 21 forms an anaerobic reaction zone, and the inner coil 22 forms an aerobic reaction zone. Through the design of the outer coil 21, inner coil 22, trachea 23 and throat tube 24, a negative pressure environment is formed in the throat tube 24, thereby driving the trachea 23 to draw outside air into the inner coil 22. That is, when domestic sewage flows through the throat tube 24, due to the large flow velocity, a negative pressure is formed in the throat tube 24, and air is drawn in.

[0028] The diameter of the outer coil 21 is larger than that of the inner coil 22. The ratio of the diameter of the outer coil 21 to the diameter of the inner coil 22 is 5:3-4, and the ratio of the volume of the outer coil 21 to the volume of the inner coil 22 is 4-5:1. By increasing the flow rate of domestic wastewater in the outer coil 21, it is beneficial to form a negative pressure environment in the throat pipe 24.

[0029] The inner coil 22 contains a brush-shaped packing material 221. The packing material 221 can react with domestic wastewater to produce a biofilm. The biofilm method involves microorganisms attaching to the surface of a carrier and forming a biofilm. In this application, the carrier is the packing material 221. When wastewater flows through the surface of the carrier, the organic matter in the wastewater diffuses into the interior of the biofilm. The microorganisms inside the biofilm decompose and metabolize the organic matter and perform biosynthesis and metabolism. At the same time, the metabolic products of decomposition diffuse from the biofilm into the aqueous phase, thereby degrading the organic matter in the wastewater.

[0030] The formation of biofilms is a dynamic process involving the combined effects of microbial adsorption, growth, and shedding.

[0031] First, the organic pollutants and microorganisms suspended in the liquid phase move and adhere to the surface of the carrier; then, the microorganisms adhering to the carrier degrade the organic pollutants and undergo processes such as metabolism, growth, and reproduction, and gradually form a thin biofilm in the local area of the carrier, which has biochemical activity and can further adsorb and decompose the organic pollutants in the wastewater, until a mature biofilm completely wrapping the carrier is formed.

[0032] As shown in Figure 1 The solid waste treatment mechanism 3 is used for treating solid waste and supplying heat generated in the reaction process of the solid waste to the domestic sewage treatment mechanism 2, and is installed in the reaction cavity 11 of the barrel body 1.

[0033] The solid waste treatment mechanism 3 comprises a screen 31, a screw feeder 32, and a lifting pump 33. The screen 31 is installed in the reaction cavity 11 of the barrel body 1 and is used for supporting the solid waste and screening the liquid in the solid waste. The screen 31 is located below the domestic sewage treatment mechanism 2. The lifting pump 33 is arranged below the screen 31 and is used for pumping the fermentation liquid at the bottom of the reaction cavity 11 of the barrel body 1. The output end of the lifting pump 33 is provided with a lifting pipe 331, and the output end of the lifting pipe 331 extends to the outside of the barrel body 1. The screw feeder 32 is fixedly connected with the barrel body 1 and is used for outputting the fertilizer produced by the solid waste. The screw feeder 32 is located above the screen 31. The screw feeder 32 is provided with an output end and an input end. The input end of the screw feeder 32 is located at the bottom of the screw feeder 32. The output end of the screw feeder 32 is located at the upper portion of the screw feeder 32 and is located outside the barrel body 1.

[0034] The screen 31 is arranged in an inclined state. The end of the screen 31 close to the screw feeder 32 is inclined downward, so that the solid waste is stacked in the direction of the screw feeder 32, which is beneficial to the transmission of the solid waste.

[0035] A method for jointly treating solid waste and domestic sewage is applied to a device for jointly treating solid waste and domestic sewage. In operation, domestic sewage is first injected into the inner coil 22 from the output end port of the inner coil 22. After 7-15 days, a biological membrane is formed on the surface of the filler 221 of the inner coil 22. After the membrane is formed, the domestic sewage to be treated is injected into the outer coil 21 from the input end of the outer coil 21. Small-molecule organic matter formed through anaerobic action in the outer coil 21 is completely biodegraded by the action of microorganisms on the surface of the filler in the aerobic reaction zone of the inner coil 22. The treated domestic sewage can be directly discharged.

[0036] At the same time, solid waste produced in life can be added into the barrel 1 from the feeding hopper 12 of the barrel 1 to form composting in the barrel 1, and after composting for a certain period of time, the fermentation liquor formed at the bottom of the barrel 1 is lifted out by the lifting pump 33 and directly diluted with water for farmland fertilization, and the fertilizer formed after a period of composting is lifted out by the spiral feeder 32 for fertilization.

[0037] The above is based on the ideal embodiment of the present application. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A device for co-treatment of solid waste and domestic sewage, characterized in that, The utility model relates to a solid waste and domestic sewage treatment device, which comprises: a barrel (1) with a reaction cavity (11) for reaction of solid waste and domestic sewage, the top surface of the barrel (1) being provided with an input port for input of solid waste; a domestic sewage treatment mechanism (2) for treating domestic sewage, the domestic sewage treatment mechanism (2) being arranged in the reaction cavity (11) of the barrel (1); and a solid waste treatment mechanism (3) for treating solid waste and supplying heat generated in the reaction of solid waste to the domestic sewage treatment mechanism (2), the solid waste treatment mechanism (3) being installed in the reaction cavity (11) of the barrel (1); the domestic sewage treatment mechanism (2) comprising an outer coil pipe (21), an inner coil pipe (22), an air pipe (23) and a throat pipe (24), the input end of the outer coil pipe (21) extending to the outside of the barrel (1), the output end of the outer coil pipe (21) being connected with the input end of the throat pipe (24), the output end of the throat pipe (24) being connected with the input end of the inner coil pipe (22), the output end of the inner coil pipe (22) extending to the outside of the barrel (1), the input end of the air pipe (23) extending to the outside of the barrel (1), the output end of the air pipe (23) being connected with the throat pipe (24), an anaerobic reaction zone being formed in the outer coil pipe (21), and an aerobic reaction zone being formed in the inner coil pipe (22).

2. The apparatus for co-treatment of solid waste and domestic sewage according to claim 1, characterized in that: The diameter of the outer coil pipe (21) is greater than the diameter of the inner coil pipe (22), and the ratio of the diameter of the outer coil pipe (21) to the diameter of the inner coil pipe (22) is 5:3-4.

3. The apparatus for co-treatment of solid waste and domestic sewage according to claim 1, characterized in that: The inner coil pipe (22) is provided with fillers (221) in the form of a brush.

4. The apparatus for co-treatment of solid waste and domestic sewage according to claim 1, characterized in that: The solid waste treatment mechanism (3) comprises a screen (31), a screw feeder (32) and a lifting pump (33), the screen (31) being installed in the reaction cavity (11) of the barrel (1), the screen (31) being used for supporting solid waste and screening liquid in the solid waste, the screen (31) being located below the domestic sewage treatment mechanism (2), the lifting pump (33) being arranged below the screen (31), the lifting pump (33) being used for pumping fermentation liquid at the bottom of the reaction cavity (11) of the barrel (1), a lifting pipe (331) being installed on the output end of the lifting pump (33), the output end of the lifting pipe (331) extending to the outside of the barrel (1), the screw feeder (32) being fixedly connected with the barrel (1), the screw feeder (32) being used for outputting fertilizer produced by the solid waste, and the screw feeder (32) being located above the screen (31).

5. The apparatus for co-treatment of solid waste and domestic sewage according to claim 1, characterized in that: The top surface of the barrel (1) is provided with a feeding hopper (12), the output end of the feeding hopper (12) being connected with the input port, and a spring door (13) being arranged in the output end of the feeding hopper (12).

6. A method for co-treatment of solid waste and domestic sewage, applied to the co-treatment device of any one of claims 1-5, characterized in that, In operation, domestic wastewater is first injected into the inner coil pipe (22) to form a biological membrane on the surface of the filler (221) in the inner coil pipe (22) after 7-15 days, and then the domestic wastewater to be treated is injected into the outer coil pipe (21) to form small-molecule organic matter through anaerobic reaction in the outer coil pipe (21) and to be completely biodegraded in the aerobic reaction zone in the inner coil pipe (22); Meanwhile, solid waste generated in daily life can be added into the barrel (1) from the feed hopper (12) of the barrel (1) to form composting in the barrel (1), and the fermentation liquor formed at the bottom of the barrel (1) is lifted out by the lifting pump (33) and directly diluted with water for farmland fertilization. The fertilizer formed after composting for a period of time is lifted out by the screw feeder (32) for fertilization.

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