Leakage monitoring system for geomembranes

A leakage monitoring system for geomembranes, characterized in that, comprising:

• a power supply unit having two supply electrodes made from a nonmetallic conductive material and respectively connected to a geomembrane top and a geomembrane bottom of a primary geomembrane such that the membrane top and the membrane bottom of the primary geomembrane respectively form electric fields;
• a plurality of monitoring sensor electrodes uniformly arranged below the primary geomembrane and used for acquiring potentials at corresponding positions below the primary geomembrane, wherein the monitoring sensor electrodes are made from the nonmetallic conductive material;
• a data acquisition unit connected with each monitoring sensor electrode through a signal transmission cable and used for acquiring potential data of each monitoring sensing electrode;
• and
• a control and analysis unit connected with the data acquisition unit and used for analyzing the potential data of each monitoring sensor electrode acquired by the data acquisition unit, determining an abnormal potential area between the monitoring sensor electrodes below the primary geomembrane to determine a leakage position of the primary geomembrane and giving an alarm prompt.