Municipal solid waste landfill surrounding water environment pollution abatement device

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses a municipal solid waste landfill surrounding water environment pollution abatement device which comprises a sewage adjusting reservoir, a water quality balancing pool and an ultrafiltration system and further comprises a nitrification system formed by splicing a plurality of nitrification pools. Each nitrification tank comprises a nitrification bin, a temperature sensor probe, a pH value sensor probe, a pH regulation and control assembly, a temperature regulation and control assembly and a stirrer, the temperature sensor probe is connected with a flange of the nitrification bin, each pH regulation and control assembly is fixedly connected with the nitrification bin, the temperature regulation and control assembly is fixedly connected with the nitrification bin, and the stirrer is connected with the temperature regulation and control assembly. And the stirrer is arranged in the nitrification bin. By adjusting the temperature and the pH value of the wastewater, the nitration reaction can be under the optimal condition, so that the reaction rate of the nitration reaction is improved, and the wastewater treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a device for treating water environment pollution around a municipal domestic garbage landfill. Background Art

[0002] At present, leachate, also known as percolate, is a liquid formed during the landfill process of urban solid waste. Due to compaction and the action of microorganisms, the pollutants contained in the garbage are dissolved with water and combined with rainfall, runoff, etc. It is mainly composed of precipitation, water contained in garbage, water produced by biological decomposition and underground reverse osmosis water. Leachate is a black organic wastewater with complex composition and difficult to treat. It contains a large amount of organic matter, ammonia nitrogen, heavy metals, inorganic salts and toxic and harmful substances.

[0003] The prior art CN217265300U provides a device for treating water pollution around a municipal solid waste landfill, the device comprising a sewage regulating reservoir and a biochemical reaction system, the sewage regulating reservoir and the biochemical reaction system being connected, an ecological permeable dam being arranged in the sewage regulating reservoir, the sewage regulating reservoir being connected to a polluted water source, the biochemical reaction system comprising a nitrification system and a pre-denitrification system, the water outlet of the pre-denitrification system being connected to the water inlet of the nitrification system.

[0004] However, in the prior art, the nitrification reaction time of the waste liquid in the pre-denitrification system, the nitrification system and the post-denitrification system is relatively long, resulting in a low efficiency of the biochemical treatment. Summary of the invention

[0005] The purpose of the present invention is to provide a device for treating water environment pollution around a municipal solid waste landfill, aiming to solve the technical problem that the nitrification reaction time of waste liquid in the pre-denitrification system, nitrification system and post-denitrification system in the prior art is long, resulting in low efficiency of biochemical treatment.

[0006] To achieve the above-mentioned purpose, the present invention adopts a device for treating water pollution around a municipal solid waste landfill, comprising a sewage regulating reservoir, a water quality balancing tank and an ultrafiltration system, and also comprising a nitrification system, wherein the sewage regulating reservoir is adapted to the water quality balancing tank, the water quality balancing tank is adapted to the nitrification system, the nitrification system is adapted to the ultrafiltration system, the nitrification system is composed of a plurality of nitrification tanks, each of which comprises a nitrification bin, a temperature sensor probe, a pH value sensor probe, a pH control component, a temperature control component and an agitator, wherein the temperature sensor probe is connected to the nitrification bin flange, and the detection end of the temperature sensor probe passes through the nitrification bin, the pH value sensor probe is connected to the nitrification bin flange, and the detection end of the pH value sensor probe passes through the nitrification bin, the number of the pH control components is two groups, each group of the pH control components is respectively fixedly connected to the nitrification bin and is respectively located on the inner side of the nitrification bin, the temperature control component is fixedly connected to the nitrification bin and is located at the lower end of the nitrification bin, and the agitator is arranged inside the nitrification bin.

[0007] Each group of the pH control components includes a mounting frame, a storage tank, a first stainless steel solenoid valve and a dropper. The mounting frame is fixedly connected to the nitrification bin and is located on one side of the nitrification bin. The storage tank is fixedly connected to the mounting frame and is embedded in the inner side of the mounting frame. The first stainless steel solenoid valve is connected to the storage tank and is located at the lower end of the storage tank. The dropper is connected to the first stainless steel solenoid valve and is located at the lower end of the first stainless steel solenoid valve.

[0008] Among them, each group of the pH control components also includes a second stainless steel solenoid valve, a connecting pipe and a hopper, the connecting pipe is connected to the storage tank and is located at the upper end of the storage tank, the second stainless steel solenoid valve is connected to the connecting pipe and is located at the upper end of the connecting pipe, and the hopper is connected to the second stainless steel solenoid valve and is located at the upper end of the second stainless steel solenoid valve.

[0009] Wherein, each group of the pH regulating components further includes a stainless steel filter, and the stainless steel filter is fixedly connected to the hopper and is located inside the hopper.

[0010] Wherein, the nitration bin includes a bin body, a flange assembly, a first splicing plate and a second splicing plate. The number of the flange assemblies is two groups, and the two groups of flange assemblies are respectively connected to the bin body and are respectively located on one side of the bin body. The first splicing plate is fixedly connected to the bin body and is located on one side of the bin body. The second splicing plate is fixedly connected to the bin body and is located on one side of the bin body, and the first splicing plate and the second splicing plate are adapted to each other.

[0011] Among them, each group of the flange components includes a tube body, a flange ring and a flange seal. The tube body is fixedly connected to the warehouse body and is located on one side of the warehouse body. The flange ring is fixedly connected to the tube body and is sleeved on the outer wall of the tube body. One side of the flange ring has an embedding groove, and the flange seal is embedded in the inner side of the embedding groove.

[0012] Among them, the flange seal includes a sealing ring, a sealing rib and a sealing column. The number of the sealing columns is multiple groups, and each group of the sealing columns is fixedly connected to the sealing ring and is respectively located on one side of the sealing ring. The number of the sealing ribs is multiple groups, and each group of the sealing ribs is fixedly connected to the sealing ring and is respectively located on one side of the sealing ring.

[0013] The present invention discloses a device for treating water pollution around a municipal landfill. The device collects leachate through the sewage regulating reservoir and removes large particles of impurities. The treated wastewater enters the water quality balance tank for water quality and water quantity balance adjustment, and finally enters the nitrification system for nitrification treatment. In the nitrification system, nitrification treatment is carried out through a plurality of nitrification tanks. In each of the nitrification tanks, the nitrification bin stores the wastewater and carries out nitrification reaction treatment. The pH value and temperature value of the wastewater in the nitrification bin are detected in real time through the temperature sensor probe and the pH value sensor probe. The pH regulating component and the temperature regulating component regulate the wastewater according to the real-time pH value and temperature value until the temperature detected by the temperature sensor probe and the pH value sensor probe is within the range of preset values. With the above structure, the nitrification reaction can be placed in the best condition by regulating the temperature and pH value of the wastewater, thereby increasing the reaction rate of the nitrification reaction and improving the treatment efficiency of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a device for treating water environment pollution around a municipal solid waste landfill according to the present invention.

[0016] Figure 2 It is a structural schematic diagram of the nitrification system of the present invention.

[0017] Figure 3 It is a structural schematic diagram of a nitrification tank of the present invention.

[0018] Figure 4 It is a front view of the nitrification tank of the present invention.

[0019] Figure 5 The present invention Figure 4 AA line internal structure cross-sectional view.

[0020] Figure 6 The present invention Figure 5 Enlarged view of the local structure at point B.

[0021] Figure 7 It is a top view of the nitrification tank of the present invention.

[0022] Figure 8 The present invention Figure 7 Cross-sectional view of the internal structure of CC line.

[0023] 101-sewage regulating reservoir, 102-water quality balancing tank, 103-ultrafiltration system, 104-nitrification system, 105-nitrification tank, 106-nitrification warehouse, 107-temperature sensor probe, 108-pH sensor probe, 109-temperature control component, 110-agitator, 111-mounting rack, 112-storage tank, 113-first stainless steel solenoid valve, 114-dropper, 115-second stainless steel solenoid valve, 116- Connecting pipe, 117-hopper, 118-stainless steel filter, 119-bin, 120-first splicing plate, 121-second splicing plate, 122-tube body, 123-flange ring, 124-flange seal, 125-sealing ring, 126-sealing rib, 127-sealing column, 128-first TEC module, 129-second TEC module, 130-temperature control plate, 131-temperature control fin, 132-bottom plate, 133-spacer. DETAILED DESCRIPTION

[0024] See also Figures 1 to 8 , Figure 1 It is a schematic structural diagram of a device for treating water environment pollution around a municipal solid waste landfill according to the present invention; Figure 2 It is a schematic structural diagram of the nitrification system of the present invention; Figure 3 It is a schematic structural diagram of a nitrification pool of the present invention; Figure 4 is a front view of the nitrification tank of the present invention; Figure 5 The present invention Figure 4 AA line internal structure cross-sectional view; Figure 6 The present invention Figure 5 A magnified view of the local structure at B;

[0025] Figure 7 is a top view of the nitrification tank of the present invention; Figure 8 The present invention Figure 7 Cross-sectional view of the internal structure of CC line.

[0026] The present invention provides a device for treating water pollution around a municipal solid waste landfill, comprising a sewage regulating reservoir 101, a water quality balancing tank 102, an ultrafiltration system 103, and a nitrification system 104. The sewage regulating reservoir 101 is adapted to the water quality balancing tank 102, the water quality balancing tank 102 is adapted to the nitrification system 104, the nitrification system 104 is adapted to the ultrafiltration system 103, the nitrification system 104 is formed by splicing a plurality of nitrification tanks 105, each of the nitrification tanks 105 comprises a nitrification bin 106, a temperature sensor probe 107, a pH value sensor probe 108, a pH control component, a temperature control component 109, and a stirrer 110. The temperature sensor probe 107 is flange-connected to the nitrification bin 106, and the detection end of the temperature sensor probe 107 passes through the nitrification bin 106. The pH value sensor probe 108 is flange-connected to the nitrification bin 106, and the detection end of the pH value sensor probe 108 passes through the nitrification bin 106. There are two groups of pH control components, and each group of pH control components is fixedly connected to the nitrification bin 106 and located on the inner side of the nitrification bin 106. The temperature control component 109 is fixedly connected to the nitrification bin 106 and located at the lower end of the nitrification bin 106. The agitator 110 is arranged inside the nitrification bin 106.

[0027] In this embodiment, the sewage regulating reservoir 101 collects the leachate and removes the large particles of impurities. The treated waste liquid enters the water quality balance tank 102 for water quality and water quantity balance adjustment, and finally enters the nitrification system 104 for nitrification treatment. In the nitrification system 104, nitrification treatment is carried out through multiple nitrification tanks 105. In each nitrification tank 105, the nitrification tank 106 stores the waste liquid and carries out nitrification reaction treatment. The temperature sensor probe 107 and the pH sensor probe 108 detects the pH value and temperature value of the waste liquid in the nitrification bin 106 in real time, and the pH control component and the temperature control component 109 control the waste water according to the real-time pH value and temperature value until the temperature detected by the temperature sensor probe 107 and the pH sensor probe 108 is within the range of preset values. Among the two groups of pH control components, one pH control component is filled with acid solution and the other pH control component is filled with alkali solution. The preset pH value is 8.0-8.4, and the preset temperature value is 20°C-30°C.

[0028] Furthermore, each group of the pH regulating components includes a mounting frame 111, a storage tank 112, a first stainless steel solenoid valve 113 and a dropper 114. The mounting frame 111 is fixedly connected to the nitrification bin 106 and is located on one side of the nitrification bin 106. The storage tank 112 is fixedly connected to the mounting frame 111 and is embedded in the inner side of the mounting frame 111. The first stainless steel solenoid valve 113 is communicated with the storage tank 112 and is located at the lower end of the storage tank 112. The dropper 114 is communicated with the first stainless steel solenoid valve 113 and is located at the lower end of the first stainless steel solenoid valve 113.

[0029] In this embodiment, the storage tank 112 is supported and fixed by the mounting frame 111. The storage tank 112 is made of titanium alloy, 316L stainless steel or chromium-nickel steel containing molybdenum, and can store sulfuric acid, hydrochloric acid, sodium hydroxide and calcium hydroxide. The first stainless steel solenoid valve 113 is used to control the connection and closure between the storage tank 112 and the dropper 114. The dropper 114 drips the solution for adjusting the pH value into the nitration bin 106. The amount of solution added is controlled by the connection time between the storage tank 112 and the dropper 114.

[0030] Furthermore, each group of the pH control components also includes a second stainless steel solenoid valve 115, a connecting pipe 116 and a hopper 117, the connecting pipe 116 is connected to the storage tank 112 and is located at the upper end of the storage tank 112, the second stainless steel solenoid valve 115 is connected to the connecting pipe 116 and is located at the upper end of the connecting pipe 116, and the hopper 117 is connected to the second stainless steel solenoid valve 115 and is located at the upper end of the second stainless steel solenoid valve 115.

[0031] In this embodiment, the connecting pipe 116 connects the storage tank 112 and the second stainless steel solenoid valve 115, and the second stainless steel solenoid valve 115 connects the hopper 117 and the connecting pipe 116. When there is less residual alkali solution or acid solution in the storage tank 112, the second stainless steel solenoid valve 115 is controlled to connect the hopper 117 and the connecting pipe 116, and the alkali solution or acid solution is loaded into the storage tank 112 through the hopper 117, the second stainless steel solenoid valve 115 and the connecting pipe 116. At the same time, when the first stainless steel solenoid valve 113 is opened, the second stainless steel solenoid valve 115 is opened at the same time, and when the first stainless steel solenoid valve 113 is closed, the second stainless steel solenoid valve 115 is closed at the same time. When the pH value is adjusted, the internal air pressure of the storage tank 112 can be balanced with the external air pressure, so that the solution in the storage tank 112 can be discharged easily.

[0032] Furthermore, each group of the pH regulating components further includes a stainless steel filter 118 , which is fixedly connected to the hopper 117 and is located inside the hopper 117 .

[0033] In this embodiment, the stainless steel filter 118 is used to filter the alkali solution or acid solution when it is added, thereby preventing external impurities from entering the hopper 117 .

[0034] Furthermore, the nitration warehouse 106 includes a warehouse body 119, a flange assembly, a first splicing plate 120 and a second splicing plate 121. The number of the flange assemblies is two groups, and the two groups of flange assemblies are respectively connected to the warehouse body 119 and are respectively located on one side of the warehouse body 119. The first splicing plate 120 is fixedly connected to the warehouse body 119 and is located on one side of the warehouse body 119. The second splicing plate 121 is fixedly connected to the warehouse body 119 and is located on one side of the warehouse body 119, and the first splicing plate 120 and the second splicing plate 121 are adapted to each other.

[0035] In this embodiment, the bin body 119 is used to store waste liquid and perform nitrification treatment on the waste liquid. When multiple bin bodies 119 are arranged in parallel, bolts can be used to penetrate the corresponding first splicing plate 120 and the second splicing plate 121 to achieve connection. The flange assembly is used to install and fix the temperature sensor probe 107 and the pH sensor probe 108.

[0036] Furthermore, each group of the flange assembly includes a tube body 122, a flange ring 123 and a flange seal 124. The tube body 122 is fixedly connected to the warehouse body 119 and is located on one side of the warehouse body 119. The flange ring 123 is fixedly connected to the tube body 122 and is sleeved on the outer wall of the tube body 122. One side of the flange ring 123 has an embedding groove, and the flange seal 124 is embedded in the inner side of the embedding groove.

[0037] In this embodiment, the tube body 122 is connected to the warehouse body 119, and the flange ring 123 is fixed to the outer wall of the tube body 122, and the flange seal 124 is embedded in one side of the flange ring 123. When the temperature sensor probe 107 or the pH sensor probe 108 is fixed to the flange ring 123, the flange seal 124 is squeezed to achieve a water-tight effect.

[0038] Furthermore, the flange seal 124 includes a sealing ring 125, a sealing rib 126 and a sealing column 127. The sealing columns 127 are provided in multiple groups, and each group of the sealing columns 127 is fixedly connected to the sealing ring 125 and is respectively located on one side of the sealing ring 125. The flange seal 124 includes a plurality of groups of sealing ribs 126, and each group of the sealing ribs 126 is fixedly connected to the sealing ring 125 and is respectively located on one side of the sealing ring 125.

[0039] In this embodiment, the sealing ring 125 is the main sealing structure. At the same time, the sealing column 127 can play a role in pre-positioning and pre-installation when the sealing ring 125 is installed on the flange ring 123, thereby avoiding falling off during the installation process and improving the convenience of installation. The sealing rib 126 can improve the sealing strength of the water seal. The sealing rib 126 will deform after being squeezed to increase the pressure, thereby improving the sealing strength of the water seal.

[0040] Furthermore, the temperature control component 109 includes a first TEC module 128, a second TEC module 129, a temperature control plate 130 and temperature control fins 131. The temperature control plate 130 is fixedly connected to the nitrification bin 106 and embedded in the lower end of the nitrification bin 106. The temperature control fins 131 are in multiple groups. Each group of the temperature control fins 131 is fixedly connected to the corresponding temperature control plate 130 and is respectively located inside the nitrification bin 106. The first TEC module 128 is fixedly connected to the temperature control plate 130 and is located at the lower end of the temperature control plate 130. The second TEC module 129 is fixedly connected to the temperature control plate 130 and is located at the lower end of the temperature control plate 130.

[0041] In this embodiment, the contact end faces of the first TEC module 128 and the second TEC module 129 with the temperature control plate 130 are opposite end faces, and the first TEC module 128 and the second TEC module 129 respectively realize cooling and heating. After the temperature sensor probe 107 detects that the temperature of the wastewater in the nitrification bin 106 is higher than the preset temperature range, the first TEC module 128 is started to cool the temperature control plate 130, and the temperature control plate 130 transfers the low temperature to the temperature control fins 131, and the temperature control fins 131 cool the wastewater in the nitrification bin 106. The water is cooled until the wastewater temperature is within the preset temperature range. After the temperature sensor probe 107 detects that the wastewater temperature in the nitrification bin 106 is lower than the preset temperature range, the second TEC module 129 is started to heat the temperature control plate 130. The temperature control plate 130 transfers heat to the temperature control fins 131, and the temperature control fins 131 heat the wastewater in the nitrification bin 106 until the wastewater temperature is within the preset temperature range. The wastewater is within the preset temperature range to ensure the activity of nitrifying bacteria, thereby improving the reaction efficiency of the nitrification reaction.

[0042] Furthermore, the temperature control component 109 also includes a bottom plate 132 and a partition 133, the partition 133 is fixedly connected to the temperature control plate 130 and is located at the lower end of the temperature control plate 130, the bottom plate 132 is arranged at the lower end of the nitration bin 106, and the bottom plate 132 covers the first TEC module 128 and the second TEC module 129.

[0043] In this embodiment, the spacer 133 isolates the first TEC module 128 and the second TEC module 129 to avoid contact between the first TEC module 128 and the second TEC module 129 during operation, and the bottom plate 132 protects the bottom of the first TEC module 128 and the second TEC module 129 to ensure that the first TEC module 128 and the second TEC module 129 can operate stably.

[0044] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A device for treating water pollution around a municipal solid waste landfill, comprising a sewage regulating reservoir, a water quality equalization tank and an ultrafiltration system, characterized in that: The invention also includes a nitrification system. The sewage regulating reservoir is adapted to the water quality balancing tank, the water quality balancing tank is adapted to the nitrification system, the nitrification system is adapted to the ultrafiltration system, and the nitrification system is composed of a plurality of nitrification tanks. Each of the nitrification tanks includes a nitrification bin, a temperature sensor probe, a pH sensor probe, a pH control component, a temperature control component and an agitator. The temperature sensor probe is flange-connected to the nitrification bin, and the detection end of the temperature sensor probe passes through the nitrification bin. The pH sensor probe is flange-connected to the nitrification bin, and the detection end of the pH sensor probe passes through the nitrification bin. There are two groups of pH control components, each group of pH control components is fixedly connected to the nitrification bin and located at the inner side of the nitrification bin respectively. The temperature control component is fixedly connected to the nitrification bin and located at the lower end of the nitrification bin. The agitator is arranged inside the nitrification bin.

2. The device for treating water pollution around a municipal solid waste landfill as claimed in claim 1, characterized in that: Each group of the pH control components includes a mounting frame, a storage tank, a first stainless steel solenoid valve and a dropper. The mounting frame is fixedly connected to the nitrification bin and is located on one side of the nitrification bin. The storage tank is fixedly connected to the mounting frame and is embedded in the inner side of the mounting frame. The first stainless steel solenoid valve is communicated with the storage tank and is located at the lower end of the storage tank. The dropper is communicated with the first stainless steel solenoid valve and is located at the lower end of the first stainless steel solenoid valve.

3. A device for treating water pollution around a municipal solid waste landfill as claimed in claim 2, characterized in that: Each group of the pH control components also includes a second stainless steel solenoid valve, a connecting pipe and a hopper. The connecting pipe is connected to the storage tank and is located at the upper end of the storage tank. The second stainless steel solenoid valve is connected to the connecting pipe and is located at the upper end of the connecting pipe. The hopper is connected to the second stainless steel solenoid valve and is located at the upper end of the second stainless steel solenoid valve.

4. The device for treating water pollution around a municipal solid waste landfill as claimed in claim 3, characterized in that: Each group of the pH regulating components further includes a stainless steel filter, which is fixedly connected to the hopper and located inside the hopper.

5. The device for treating water pollution around a municipal solid waste landfill as claimed in claim 1, characterized in that: The nitration warehouse includes a warehouse body, a flange assembly, a first splicing plate and a second splicing plate. The number of the flange assemblies is two groups. The two groups of flange assemblies are respectively connected to the warehouse body and are respectively located on one side of the warehouse body. The first splicing plate is fixedly connected to the warehouse body and is located on one side of the warehouse body. The second splicing plate is fixedly connected to the warehouse body and is located on one side of the warehouse body, and the first splicing plate and the second splicing plate are adapted to each other.

6. The device for treating water pollution around a municipal solid waste landfill as claimed in claim 5, characterized in that: Each set of flange assemblies includes a tube body, a flange ring and a flange seal. The tube body is fixedly connected to the bin body and is located on one side of the bin body. The flange ring is fixedly connected to the tube body and is sleeved on the outer wall of the tube body. One side of the flange ring has an embedding groove, and the flange seal is embedded in the inner side of the embedding groove.

7. The device for treating water pollution around a municipal solid waste landfill as claimed in claim 6, characterized in that: The flange seal includes a sealing ring, a sealing rib and a sealing column. The sealing columns are in multiple groups, and each group of the sealing columns is fixedly connected to the sealing ring and is located on one side of the sealing ring. The flange seal includes multiple groups of sealing ribs, and each group of the sealing ribs is fixedly connected to the sealing ring and is located on one side of the sealing ring.

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