Landfill area leakage detection system and method

Abstract

The invention provides a landfill area leakage detection system and method, and relates to the field of harmless landfill. First cables and second cables are respectively connected with different resistors in series, one ends of all the first cables are respectively connected to one pole of a power supply, and one ends of all the second cables are respectively connected to the other pole of the power supply. The grid points are used for receiving leakage liquid and enabling the corresponding first cables and second cables to be conducted to form loops, and different loops have different resistance values. A detection device is used for obtaining a resistance value after the corresponding first and second cables are superposed, so that the positions of the grid points corresponding to leakage are obtained. By setting a grid type cable structure, grid points are respectively communicated with and correspond to different resistance value and the upper landfill areas, the grid points are conducted when the landfill areas leak, and the positions of the conducted grid points are determined according to the resistance values, so that the positions of leakage points of the corresponding landfill area are determined, and the leakage positions are positioned.

Description

technical field [0001] The present disclosure relates to the field of harmless landfills, in particular to a leakage detection system and method for landfill areas. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Landfill is the main means of harmless disposal of hazardous waste. For the harmless landfill of hazardous waste, the requirements for the construction of rigid landfill under the conditions of high groundwater level, soft soil area and other geological conditions are put forward. The leakage and harmful components in the rigid landfill are monitored, and the damage and leakage of the landfill unit can be observed under artificial visual conditions, and repairs can be made in time. [0004] In order to achieve the purpose of timely observation and repair of leakage, it is necessary to arrange manual on-duty and inspection for a...

AI Technical Summary

Problems solved by technology

However, the conductivity of the concrete medium of the rigid landfill structure is poor, and it is difficult to ensure the contact between the sensing electrode and the concrete, which greatly affects its applicability; the other is the online monitoring of leakage based on the principle of potential, and its basic principle is leakage The medium above and below the main anti-seepage barrier is connected, which leads to the difference in potential distribution

However, due to the rigid landfill structure, the space below the main anti-seepage barrier is relatively large (in order to allow people to enter, the lower space needs to be more than 60cm), and the amount of leachate leakage in the case of conventional leakage is difficult to make the leakage point above and below Media connectivity

Therefore, it is currently difficult to meet the online monitoring requirements for leakage in existing rigid landfills

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