Treatment method for a river system in a reservoir area and treatment system

A treatment method for a river system in a reservoir area, comprising the steps of:

• step (S1) reading a current date, and determining whether a time from the current date to a rainy season is less than a preset duration, if so, go to step (S2), otherwise executes step (S8);
• step (S2) moving a pressure sensor arranged at a preset position of the river bottom at a monitoring point upward by a preset distance through a lifting mechanism and sending pressure data collected by the pressure sensor to a data processing module;
• step (S3) determining whether the pressure data gradually decreases, and determining whether the pressure data in a front section is at least greater than a preset pressure of the pressure data in the remaining sections in an entire period;
• if so, go to step (S4), otherwise go to step (S5);
• step (S4), determining whether a duration of the pressure data in the front section is less than the preset duration, if so, go to step (S5), otherwise go to step (S6);
• step (S5) obtaining the current time, and determining whether an interval between the current time and the time for collecting pressure/nitrogen and phosphorus is greater than a preset number of days, if so, return to step (S1), otherwise continue to perform step (S5);
• step (S6) acquiring an image information of the river bottom within a preset range of the pressure sensor, and sending it to a trained neural network model stored in the data processing module for identification to obtain a depth of a sludge;
• step (S7) determining whether the depth of sludge has reached a dredging depth, if so, start a sludge pump to transport the sludge to a sludge tank, and then return to step five;
• otherwise, return directly to step (S5);
• step (S8) collecting nitrogen and phosphorus concentration of water body in a river channel, and when the nitrogen and phosphorus concentration exceeds the standard, and when no cages containing aquatic plants are placed in the river channel, putting the cages containing aquatic plants into a river section, and then return to step (S5);
• before using the treatment method also comprising:
• dividing the river into several sections, and setting up a monitoring point at several locations in each section of the river;
• emptying the water within a preset range of the monitoring point, cleaning up the sludge, and installing a data acquisition device with pressure, image, nitrogen and phosphorus acquisition functions at the monitoring point;
• using concrete to harden the river bottom within the preset range of the monitoring point, and making the river bottom within the preset range of the monitoring point in the same flatness;
• after the concrete meets a maintenance requirement, backfilling the sludge within the preset range of the monitoring point, and making the depth of the backfilled sludge equal to the depth of the sludge removed when the water is emptied.