CN201965002U

CN201965002U - Device for monitoring leachate seepage of refuse sanitary landfill

Info

Publication number: CN201965002U
Application number: CN2011200652825U
Authority: CN
Inventors: 常方强; 涂帆
Original assignee: Huaqiao University
Current assignee: Huaqiao University
Priority date: 2011-03-11
Filing date: 2011-03-11
Publication date: 2011-09-07
Anticipated expiration: 2021-03-11

Abstract

The utility model discloses a detection device for the leachate seepage of a refuse sanitary landfill. The detection end of the detection device is arranged in the refuse sanitary landfill; a first impervious barrier and a second impervious barrier are paved at the bottom of the refuse sanitary landfill; the detection end comprises two electrodes; one end of each electrode is vertically embedded into the second impervious barrier through an insulated fixed end head; the other ends of the two electrodes are respectively and electrically connected with the input end of a universal meter; the output end of the universal meter is correspondingly and electrically connected with the input end of an alarm; and the universal meter and the alarm are respectively arranged outside the refuse sanitary landfill. The detection device for the leachate seepage of the refuse sanitary landfill is convenient to operate and has high reliability; and the seepage situation of the leachate can be continuously monitored and the problems that the time and labor are consumed by the traditional method are solved.

Description

Garbage sanitary filling field oozes drop liquid monitoring of leakage device

Technical field

The utility model relates to a kind of monitoring of leakage device of garbage leachate, specifically is meant a kind of monitoring device that drop liquid carries out leak detection that oozes to garbage sanitary filling field.

Background technology

Along with the develop rapidly of China's economic construction and the raising day by day of living standards of the people, increasing rubbish needs landfill disposal, and in order to protect landfill yard water and soil environment on every side, the garbage leachate seepage is detected, monitors is a necessary job.The bottom of traditional refuse landfill is not often done antiseepage and is handled, and garbage leachate leaks in the underground soil layer, the underground water and the soil body around polluteing; Though and modern garbage sanitary filling field has been done the antiseepage processing, laid geomembrane and clay seam in the bottom of landfill yard, still owing to the influence of factors such as being constructed, geomembrane is difficult to ensure the existence that does not have hole or crack, clay seam is bad as handling, and also easily produces the crack; Even possessed the landfill yard that double-deck antiseepage is handled, also be difficult to sometimes not ensure to produce the situation of oozing drop liquid seepage.

At garbage leachate seepage situation, traditional monitoring method has two kinds: the one, and the matter of in the range of influence of landfill area, fetching water inspection well, extract sampling of ground water, utilize unpolluted water sample and the method that might contaminated water sample compares, whether having ne-leakage to detect; The 2nd, for the landfill yard that the double-layer drainage system is set, extract phreatic water sample out from drainage pipeline, analyze comparison.First kind of monitoring method is difficult for continuous monitoring, if monitored seepage, polluted the water and soil of certain limit often, and this monitoring method takes time and effort; Second kind of monitoring method also is difficult for realizing continuous monitoring, and the rubble that the hole of drainage pipeline is oozed the dissolving of drop liquid stops up, and also just is difficult to sampling monitoring.

The utility model content

In view of this, but the purpose of this utility model is to provide a kind of continuous monitoring and the high garbage sanitary filling field of reliability to ooze drop liquid monitoring of leakage device.

For achieving the above object, the technical solution of the utility model is:

A kind of garbage sanitary filling field oozes drop liquid monitoring of leakage device, the monitoring side of this monitoring device is located in the garbage sanitary filling field, the bottom of this garbage sanitary filling field is covered with ground floor impervious barrier and second layer impervious barrier, wherein: this monitoring side comprises two electrodes, one end of these two electrodes is embedded in the described second layer impervious barrier by the stiff end head erect of insulation respectively, the other end of these two electrodes is electrically connected the input end of multimeter respectively, the corresponding input end that is electrically connected alarm of the output terminal of this multimeter, and this multimeter and alarm all are located at outside the garbage sanitary filling field.

Described ground floor impervious barrier and second layer impervious barrier are followed successively by ground floor metalling, ground floor geomembrane, ground floor clay seam, second layer metalling, second layer geomembrane and second layer clay seam, and described electrode vertically is embedded in this second layer metalling.

Described electrode vertically is embedded in the described second layer metalling near top or near the position of bottom.

Described electrode is arranged in the perforation in the described fixedly termination and at interval and is provided with, and an end of described two electrodes vertically stretches out from the bottom surface of described fixedly termination, and described fixedly termination is the fixedly termination that plastics are made.

Described two electrodes, multimeter and alarms all form by electric wire and are electrically connected, this electric wire is with the PVC wired hose outward, tightly insert in the jack on the described fixedly termination end of this PVC wired hose, and the coupling part of this PVC wired hose and described fixedly termination is wound with the iron wire of fastening usefulness.

Adopt the utility model garbage sanitary filling field to ooze drop liquid monitoring of leakage device, have following beneficial effect:

Electrode is embedded in the bottom of garbage sanitary filling field, when oozing drop liquid seepage, two electrodes are switched on, the resistivity rapid drawdown that multimeter is shown, alarm is promptly reported to the police and is oozed drop liquid generation seepage, can in time take related measure to administer like this, can directly learn whether have seepage to produce and need not other guide systems, therefore adopt the utility model in time to carry out continuous monitoring to the seepage situation of oozing drop liquid, and the reliability height; Two electrodes are embedded in the second layer impervious barrier by the stiff end head erect, guarantee that like this two electrodes can form conducting state reliably under the situation of oozing drop liquid seepage; Utilize the resistivity between the multimeter test electrode, alarm equipment alarm when surpassing a certain numerical value, easy and simple to handle, avoided that groundwater abstraction carries out the problem that chemical analysis analysis contrast takes time and effort in the conventional test methodologies, and the utility model monitoring device is in case after installing, safeguard that the monitoring expense is cheap, also avoided the classic method groundwater abstraction and carried out the problem of chemical experiment both expensive; Electrode is embedded in the second layer impervious barrier, leak into second layer impervious barrier even ooze drop liquid, second layer impervious barrier also can also stop and oozes the further peripherad soil body of drop liquid, water body seepage, and, avoided the expansion of the water and soil that delay monitoring brought of classic method to pollute for taking corresponding control measures that be provided opportunity.

Description of drawings

Fig. 1 oozes the structural representation of drop liquid monitoring of leakage device for the utility model garbage sanitary filling field;

Fig. 2 oozes the laying synoptic diagram of drop liquid monitoring of leakage device in garbage sanitary filling field for the utility model garbage sanitary filling field.

Among the figure:

Garbage sanitary filling field oozes drop liquid monitoring of leakage device 1

Fixing termination 10 PVC wired hoses 11

Electrode 12 electric wires 13

Multimeter 14 alarms 15

Garbage sanitary filling field 2 rubbish 20

Ground floor impervious barrier 21 ground floor metallings 211

Ground floor geomembrane 212 ground floor clay seams 213

Second layer impervious barrier 22 second layer metallings 221

Second layer geomembrane 222 second layer clay seams 223

Embodiment

In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.

As shown in Figure 1, the utility model garbage sanitary filling field oozes drop liquid monitoring of leakage device 1 and comprises fixedly termination 10, PVC wired hose 11, electrode 12, electric wire 13, multimeter 14 and alarm 15.

Fixedly termination 10 is an insulating material, can adopt plastic products, fixedly is provided with two perforation in the termination 10, in order to fix two electrodes 12.Two electrodes 12 are located in respectively in the perforation in the fixing termination 10, and keep at a certain distance away between two electrodes 12; One end of two electrodes 12 vertically stretches out certain-length from the fixing bottom surface of termination 10, and the other end of two electrodes 12 is electrically connected the input end of multimeters 14 respectively by two wires 13.The output terminal of multimeter 14 passes through the electric wire 13 corresponding input ends that are electrically connected alarms 15, the resistivity between two electrodes 12 of multimeter 14 tests, and alarm 15 is in order to the violent change of alarm multimeter resistivity; And multimeter 14 and alarm 15 all are arranged on place, the garbage sanitary filling field 2 outer face of land.

The outer PVC wired hoses 11 that are with of electric wire 13, PVC wired hose 11 plays the effect of protection electric wire 13, in order to avoid electric wire 13 is pressed down, breaks or be corroded etc.; Tightly insert in the jack of offering on the fixing termination 10 end of PVC wired hose 11, after the insertion, tightly twines the PVC wired hose 11 and the fixing coupling part of termination 10 with iron wire, makes PVC wired hose 11 closely be connected difficult disengagement with fixing termination 10.In addition, electric wire 13 outsides are enclosed with plastic foreskin, and electric wire 13 and electrode 12 exposed parts scribble rust preventive.

As shown in Figure 2, the bottom of garbage sanitary filling field 2 is covered with ground floor impervious barrier 21 and second layer impervious barrier 22 successively, and ground floor impervious barrier 21 and second layer impervious barrier 22 are followed successively by ground floor metalling 211, ground floor geomembrane 212, ground floor clay seam 213, second layer metalling 221, second layer geomembrane 222 and second layer clay seam 223.Garbage sanitary filling field oozes drop liquid monitoring of leakage device 1 to be imbedded in the second layer metalling 221 of garbage sanitary filling field 2, and two electrodes 12 are exposed to the second layer metalling 221 that a fixing end of termination 10 vertically is arranged in.Discharging garbage oozes drop liquid to ground floor metalling 211 in order to filter side by side, and ground floor geomembrane 212 and ground floor clay seam 213 leak in the underground surrounding environment in order to the drop liquid that oozes that prevents to produce in rubbish 20 degradation processes.If hole takes place to produce in ground floor geomembrane 212 and ground floor clay seam 213, ooze drop liquid and leak into second layer metalling 221, two electrodes 12 are oozed the conducting of drop liquid in the second layer metalling 221, the resistivity rapid drawdown that multimeter 14 is shown, alarm 15 is promptly reported to the police and is oozed drop liquid generation seepage, illustrate that ground floor geomembrane 212 and ground floor clay seam 213 have produced hole, ooze drop liquid and leak into second layer metalling 221, should take related measure to administer; Simultaneously, second layer geomembrane 222 and second layer clay seam 223 can also stop and ooze the further peripherad soil body of drop liquid, water body seepage, can find seepage in time for large-scale sanitary filling field, create favourable opportunity for taking corresponding measure.

In the present embodiment, with the monitoring side is that two electrodes are embedded in the garbage sanitary filling field, make full use of the resistivity of oozing drop liquid resistivity principle much smaller than rubble, whether rapid drawdown is the resistivity of oozing drop liquid to bring in the resistivity of monitoring metalling by monitoring, and then judges whether ooze drop liquid leaks in the second layer metalling.Therefore the utility model has been avoided traditional matter inspection well and extract and ooze the problem that drop liquid takes time and effort of fetching water, and has easy and simple to handle, monitoring continuously and the high advantage of reliability; The utility model has also solved the traditional sampling monitoring method and has determined to ooze expensive big, the problem that the cycle is long of drop liquid seepage, and invests for a short time, time saving and energy saving, provides a kind of new approach for garbage sanitary filling field oozes the monitoring of leakage of drop liquid.

Consider that garbage sanitary filling field bottom may not gentlely guarantee that data are reliably comprehensive, in garbage sanitary filling field, should lay a plurality of garbage sanitary filling fields at a certain distance and ooze drop liquid monitoring of leakage device; According to the variation of the high end of the bottom of garbage sanitary filling field, can monitoring device be set lower position in the bottom, can carry out the multiple spot monitoring to the bulky refuse sanitary filling field like this, so that in time find the seepage situation; Monitoring device can be arranged in the second layer metalling near top or near the position of bottom, can make the multiple spot tracking and monitoring of more refinement like this to the seepage situation of oozing drop liquid.

The foregoing description and accompanying drawing and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.

Claims

1. a garbage sanitary filling field oozes drop liquid monitoring of leakage device, the monitoring side of this monitoring device is located in the garbage sanitary filling field, the bottom of this garbage sanitary filling field is covered with ground floor impervious barrier and second layer impervious barrier, it is characterized in that: this monitoring side comprises two electrodes, one end of these two electrodes is embedded in the described second layer impervious barrier by the stiff end head erect of insulation respectively, the other end of these two electrodes is electrically connected the input end of multimeter respectively, the corresponding input end that is electrically connected alarm of the output terminal of this multimeter, and this multimeter and alarm all are located at outside the garbage sanitary filling field.

2. garbage sanitary filling field as claimed in claim 1 oozes drop liquid monitoring of leakage device, it is characterized in that: described ground floor impervious barrier and second layer impervious barrier are followed successively by ground floor metalling, ground floor geomembrane, ground floor clay seam, second layer metalling, second layer geomembrane and second layer clay seam, and described electrode vertically is embedded in this second layer metalling.

3. garbage sanitary filling field as claimed in claim 2 oozes drop liquid monitoring of leakage device, it is characterized in that: described electrode vertically is embedded in the described second layer metalling near top or near the position of bottom.

4. garbage sanitary filling field as claimed in claim 3 oozes drop liquid monitoring of leakage device, it is characterized in that: described electrode is arranged in the perforation in the described fixedly termination and at interval and is provided with, one end of described two electrodes vertically stretches out from the bottom surface of described fixedly termination, and described fixedly termination is the fixedly termination that plastics are made.

5. garbage sanitary filling field as claimed in claim 4 oozes drop liquid monitoring of leakage device, it is characterized in that: described two electrodes, multimeter and alarms all form by electric wire and are electrically connected, this electric wire is with the PVC wired hose outward, tightly insert in the jack on the described fixedly termination end of this PVC wired hose, and the coupling part of this PVC wired hose and described fixedly termination is wound with the iron wire of fastening usefulness.