CN212621298U - Landfill leachate monitoring devices - Google Patents
Landfill leachate monitoring devices Download PDFInfo
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- CN212621298U CN212621298U CN202021982753.4U CN202021982753U CN212621298U CN 212621298 U CN212621298 U CN 212621298U CN 202021982753 U CN202021982753 U CN 202021982753U CN 212621298 U CN212621298 U CN 212621298U
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Abstract
The utility model discloses a leachate monitoring device for a refuse landfill, which comprises a monitoring device and a monitoring device, wherein the monitoring device is connected with the monitoring device; a diversion trench, a collecting pipe, a liquid collecting tank, a sampling pipe and an elbow; the flow guide grooves are multiple, a plurality of collecting pipes are arranged in each flow guide groove side by side, and the collecting pipes are HDPE perforated floral pipes; one end of the collecting pipe in each diversion trench is communicated with a liquid collecting pool; a sampling tube is arranged at the top of each liquid collecting pool, an elbow is arranged at the upper end of each sampling tube, and the opening direction of each elbow faces downwards; the abnormal condition of the seepage-proofing structure can be found in time, the general position of seepage can be positioned, the monitoring strength of the underground water environment is greatly improved, and pollution caused by seepage of leachate in a landfill site is prevented.
Description
Technical Field
The utility model relates to an environmental monitoring technical field, concretely relates to landfill leachate monitoring devices.
Background
When the garbage is buried, according to the current technical requirement for monitoring the environment of the sanitary landfill site for domestic garbage GB/T18772-2017 and the pollution control standard for the landfill site for domestic garbage GB16889-2008, the quality of the groundwater in the landfill site must be monitored to prevent the leakage of leachate, groundwater pollution and soil pollution. The current standard requires for groundwater monitoring sampling points: 1) at one glance, the water under the landfill site flows to the upstream and is 30-50 m away from the landfill heap body; 2) the drainage well is arranged at the outlet of the main sewer pipe of the landfill site; 3) two pollution diffusion wells are arranged, and the pollution diffusion wells are perpendicular to the flow direction of the underground water of the landfill site to two sides and are 30-50 m away from the landfill pile body; 4) and (4) a pollution monitoring well with two holes, wherein the sewage in the landfill site flows to two sides of the downstream, and one hole is positioned at a position 30m away from the landfill body and one hole is positioned at a position 50m away from the landfill body.
According to the requirement of the current standard on the underground water monitoring sampling point, all monitoring wells are located outside a landfill yard body area, and the main reason is that the landfill yard structure is provided with an impermeable layer, and if the monitoring wells penetrate through the impermeable layer, the impermeable layer is damaged, leachate leaks out, and underground water and soil are polluted. When the water quality of the pollution diffusion wells and the downstream pollution monitoring wells on the two sides of the landfill area is monitored to be abnormal, the pollution range is expanded out of the landfill range, and large-range environmental pollution is caused, so that the measures have great hysteresis.
SUMMERY OF THE UTILITY MODEL
Problem to among the prior art, the utility model provides a landfill leachate monitoring devices, the device monitors leachate in the barrier layer below that landfill district tectonic structure was equipped with, has avoided because traditional measures exist very big hysteresis quality, when monitoring out landfill district both sides pollution diffusion well and low reaches pollution monitoring well water quality unusual, the pollution range has enlarged the landfill scope, causes environmental pollution's problem on a large scale.
For realizing the purpose of the utility model, the utility model adopts the following technical scheme:
a landfill leachate monitoring device comprises; a diversion trench, a collecting pipe, a liquid collecting tank, a sampling pipe and an elbow; the flow guide grooves are multiple, a plurality of collecting pipes are arranged in each flow guide groove side by side, and the collecting pipes are HDPE perforated floral pipes; one end of the collecting pipe in each diversion trench is communicated with a liquid collecting pool; and a sampling tube is arranged at the top of each liquid collecting pool, an elbow is arranged at the upper end of each sampling tube, and the opening direction of each elbow faces downwards.
Preferably, the leachate monitoring device for the refuse landfill further comprises a hose, a monitoring box, a PLC (programmable logic controller), a touch display screen, a distribution pipe, a distribution electromagnetic valve, a water inlet pipe, a water inlet electromagnetic valve, a water pump, a water outlet electromagnetic valve, a water outlet pipe and a PH value sensor; a flexible pipe is arranged in the sampling pipe of each liquid collecting pool, one end of the flexible pipe extends into the liquid collecting pool, the other end of the flexible pipe extends out of the elbow, one end of each flexible pipe extending out of the elbow is communicated with the distribution pipe, and a distribution electromagnetic valve is arranged on each flexible pipe; one end of the distribution pipe is provided with a water inlet pipe, and the water inlet pipe is provided with a water inlet electromagnetic valve; the other end of the distribution pipe is communicated with the top of the monitoring box; a water pump is arranged at the joint of the distribution pipe and the monitoring box; a water outlet pipe is arranged below the side part of the monitoring box, and a water outlet electromagnetic valve is arranged on the water outlet pipe; a PH value sensor is arranged in the monitoring box; the PH value sensor, the distribution electromagnetic valve, the water inlet electromagnetic valve and the water outlet electromagnetic valve are electrically connected with the PLC; the PLC is electrically connected with a power supply end of the water pump through an alternating current contactor.
Preferably, the leachate monitoring device for the refuse landfill further comprises an alarm, wherein the alarm is arranged on the monitoring box; and a control interface of the alarm is electrically connected with the PLC.
Preferably, the diversion trench is a trench structure made of pebbles or gravels, and the thickness of the diversion trench is more than or equal to 30 cm.
Preferably, the liquid collecting tank is of a box-shaped structure made of glass fiber reinforced plastics or concrete.
Compared with the prior art, the utility model, following beneficial effect has:
1. the monitoring device can find the abnormal condition of the seepage-proofing structure in time, can position the general position of seepage, greatly improve the monitoring strength of the underground water environment and prevent the pollution caused by seepage of the landfill site.
2. The monitoring device adopts automatic monitoring, and timely alarms after monitoring abnormal leakage, so that the time and labor are saved in the leachate monitoring process of the refuse landfill.
Drawings
FIG. 1 is a schematic structural view of the leachate monitoring device of the landfill of the present invention;
FIG. 2 is a control circuit diagram of the leachate monitoring device of the refuse landfill of the present invention;
FIG. 3 is a schematic view of the leachate monitoring device of the landfill site of the present invention in specific application;
in the figure: the device comprises a diversion trench 1, a collecting pipe 2, a liquid collecting tank 3, a sampling pipe 4, an elbow 5, a hose 6, a monitoring box 7, a PLC (programmable logic controller) 8, a touch display screen 9, a distribution pipe 10, a distribution electromagnetic valve 11, an alarm 12, a water inlet pipe 13, a water inlet electromagnetic valve 14, a water pump 15, a water outlet electromagnetic valve 16, a water outlet pipe 17, a PH value sensor 18, a base layer 19, a lower protective layer 20, a leachate diversion layer 21 and a garbage landfill 22.
Detailed Description
The drawings in the embodiments of the present invention will be combined; to the technical scheme in the embodiment of the utility model, clearly, describe completely:
as shown in fig. 1, in one embodiment of the present invention, a landfill leachate monitoring device comprises; the device comprises a diversion trench 1, a collecting pipe 2, a liquid collecting tank 3, a sampling pipe 4 and an elbow 5; the device is characterized in that the flow guide grooves 1 are multiple, a plurality of collecting pipes 2 are arranged in each flow guide groove 1 side by side, and the collecting pipes 2 are HDPE perforated floral pipes; one end of each collecting pipe 2 in each flow guide groove 1 is communicated with one liquid collecting pool 3, namely, each flow guide groove 1 corresponds to one liquid collecting pool 3; a sampling tube 4 is arranged at the top of each liquid collecting pool 3, an elbow 5 is arranged at the upper end of each sampling tube 4, and the opening direction of the elbow 5 is downward, so that rainwater and other impurities are prevented from entering the sampling tubes 4;
as shown in fig. 3, according to the conventional landfill structure, namely, a leachate diversion layer 21 and a lower protective layer 20 are sequentially arranged below a refuse landfill 22, and the device is arranged below the lower protective layer 20 and on a bottommost base layer 19; the collecting pipe 2 obliquely extends out of the side slope position of the landfill to the ground, and is provided with an elbow 5; during monitoring, water can be pumped from each sampling tube 4 for monitoring and testing; when leakage occurs above any one of the diversion trenches 1, leachate is collected in the liquid collecting tank 3 and can be detected in time;
as shown in fig. 2, in order to realize the automatic monitoring of the leachate in the landfill, in an embodiment of the present invention, the leachate monitoring device in the landfill further includes a hose 6, a monitoring box 7, a PLC controller 8, a touch display screen 9, a distribution pipe 10, a distribution solenoid valve 11, a water inlet pipe 13, a water inlet solenoid valve 14, a water pump 15, a water outlet solenoid valve 16, a water outlet pipe 17, and a PH sensor 18; a hose 6 is arranged in the sampling tube 4 of each liquid collecting pool 3, one end of the hose 6 extends into the liquid collecting pool 3, the other end of the hose 6 extends out of the elbow 5, one end of each hose 6 extending out of the elbow 5 is communicated with a distribution pipe 10, and a distribution electromagnetic valve 11 is arranged on each hose 6; one end of the distribution pipe 10 is provided with a water inlet pipe 13, and the water inlet pipe 13 is provided with a water inlet electromagnetic valve 14; the other end of the distribution pipe 10 is communicated with the top of the monitoring box 7; a water pump 15 is arranged at the joint of the distribution pipe 10 and the monitoring box 7; a water outlet pipe 17 is arranged below the side part of the monitoring box 7, and a water outlet electromagnetic valve 16 is arranged on the water outlet pipe 17; a PH value sensor 18 is arranged in the monitoring box 7; the PH value sensor 18, the distribution electromagnetic valve 11, the water inlet electromagnetic valve 14 and the water outlet electromagnetic valve 16 are electrically connected with the PLC 8; the PLC controller 8 is electrically connected with a power supply end of the water pump 15 through an alternating current contactor, and starting and stopping control over the water pump 15 is achieved.
Specifically, the leachate monitoring device for the refuse landfill further comprises an alarm 12, wherein the alarm 12 is installed on the monitoring box 7; and a control interface of the alarm 12 is electrically connected with the PLC 8.
During automatic monitoring, the diversion trenches 1 are numbered, and purified water is introduced into the water inlet pipe 13; the PLC 8 sequentially controls the distribution electromagnetic valves 11 arranged on the hoses 6, only one distribution electromagnetic valve 11 is opened at each time, then the water pump 15 is started to pump water, the PH value sensor 18 is read after the pumping is finished, the display is carried out through the touch display screen 9, when leachate is pumped into the monitoring box 7, the read PH value sensor 18 is abnormal, the touch display screen 9 displays abnormal data and the corresponding diversion trench 1 number in real time, and meanwhile, the alarm 12 is started; after water pumping is finished each time, the PLC 8 controls the water outlet electromagnetic valve 16 to be opened and drained; then the water inlet electromagnetic valve 14 is opened, purified water is introduced, the monitoring box 7 and the distribution pipe 10 are cleaned and then discharged from the water outlet pipe 17, and water is pumped next time after the water outlet electromagnetic valve 16 is closed.
Specifically, the diversion trench 1 is a trench structure made of pebbles or gravels, and the thickness is more than or equal to 30 cm.
Specifically, the liquid collecting tank 3 is a box-shaped structure made of glass fiber reinforced plastic or concrete.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention, and all the technical solutions and the improvement concepts should be covered by the protection scope of the present invention.
Claims (5)
1. A landfill leachate monitoring device comprises; a diversion trench, a collecting pipe, a liquid collecting tank, a sampling pipe and an elbow; the method is characterized in that: the flow guide grooves are multiple, a plurality of collecting pipes are arranged in each flow guide groove side by side, and the collecting pipes are HDPE perforated floral pipes; one end of the collecting pipe in each diversion trench is communicated with a liquid collecting pool; and a sampling tube is arranged at the top of each liquid collecting pool, an elbow is arranged at the upper end of each sampling tube, and the opening direction of each elbow faces downwards.
2. The landfill leachate monitoring device of claim 1, wherein: the leachate monitoring device for the refuse landfill further comprises a hose, a monitoring box, a PLC (programmable logic controller), a touch display screen, a distribution pipe, a distribution electromagnetic valve, a water inlet pipe, a water inlet electromagnetic valve, a water pump, a water outlet electromagnetic valve, a water outlet pipe and a PH value sensor; a flexible pipe is arranged in the sampling pipe of each liquid collecting pool, one end of the flexible pipe extends into the liquid collecting pool, the other end of the flexible pipe extends out of the elbow, one end of each flexible pipe extending out of the elbow is communicated with the distribution pipe, and a distribution electromagnetic valve is arranged on each flexible pipe; one end of the distribution pipe is provided with a water inlet pipe, and the water inlet pipe is provided with a water inlet electromagnetic valve; the other end of the distribution pipe is communicated with the top of the monitoring box; a water pump is arranged at the joint of the distribution pipe and the monitoring box; a water outlet pipe is arranged below the side part of the monitoring box, and a water outlet electromagnetic valve is arranged on the water outlet pipe; a PH value sensor is arranged in the monitoring box; the PH value sensor, the distribution electromagnetic valve, the water inlet electromagnetic valve and the water outlet electromagnetic valve are electrically connected with the PLC; the PLC is electrically connected with a power supply end of the water pump through an alternating current contactor.
3. The landfill leachate monitoring device of claim 2, wherein: the leachate monitoring device for the refuse landfill further comprises an alarm, wherein the alarm is arranged on the monitoring box; and a control interface of the alarm is electrically connected with the PLC.
4. The landfill leachate monitoring device of claim 1, wherein: the diversion trench is a trench structure made of pebbles or gravels, and the thickness of the diversion trench is more than or equal to 30 cm.
5. The landfill leachate monitoring device of claim 1, wherein: the liquid collecting tank is of a box-shaped structure made of glass fiber reinforced plastic or concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021982753.4U CN212621298U (en) | 2020-09-11 | 2020-09-11 | Landfill leachate monitoring devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021982753.4U CN212621298U (en) | 2020-09-11 | 2020-09-11 | Landfill leachate monitoring devices |
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| CN212621298U true CN212621298U (en) | 2021-02-26 |
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| CN202021982753.4U Active CN212621298U (en) | 2020-09-11 | 2020-09-11 | Landfill leachate monitoring devices |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588877A (en) * | 2021-07-16 | 2021-11-02 | 中国能源建设集团安徽电力建设第一工程有限公司 | Concrete garbage tank body seepage and corrosion monitoring early warning system |
| CN113884246A (en) * | 2021-10-22 | 2022-01-04 | 大昌建设集团有限公司 | Anti-seepage monitoring system for oil depot tank field building |
| CN118641459A (en) * | 2024-08-15 | 2024-09-13 | 中国电建集团西北勘测设计研究院有限公司 | Device for detecting sewage infiltration condition of refuse landfill |
-
2020
- 2020-09-11 CN CN202021982753.4U patent/CN212621298U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588877A (en) * | 2021-07-16 | 2021-11-02 | 中国能源建设集团安徽电力建设第一工程有限公司 | Concrete garbage tank body seepage and corrosion monitoring early warning system |
| CN113588877B (en) * | 2021-07-16 | 2023-12-19 | 中能建建筑集团有限公司 | Concrete rubbish cell body seepage and corrosion monitoring early warning system |
| CN113884246A (en) * | 2021-10-22 | 2022-01-04 | 大昌建设集团有限公司 | Anti-seepage monitoring system for oil depot tank field building |
| CN118641459A (en) * | 2024-08-15 | 2024-09-13 | 中国电建集团西北勘测设计研究院有限公司 | Device for detecting sewage infiltration condition of refuse landfill |
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