US 11,717,868 B1
Repair adjusting system for thermal-assisted in-situ chemical oxidation and adjusting method
Yan Yang, Guangzhou (CN); and Haojia Chen, Guangzhou (CN)
Assigned to GUANGDONG UNIVERSITY OF TECHNOLOGY, Guangzhou (CN)
Filed by GUANGDONG UNIVERSITY OF TECHNOLOGY, Guangzhou (CN)
Filed on Dec. 21, 2022, as Appl. No. 18/69,941.
Claims priority of application No. 202210183273.9 (CN), filed on Feb. 28, 2022.
Int. Cl. B09C 1/08 (2006.01); G01K 1/022 (2021.01)
CPC B09C 1/085 (2013.01) [G01K 1/022 (2013.01); B09C 2101/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A repair adjusting system for thermal-assisted in-situ chemical oxidation, comprising a chemical oxidation adjusting system and a controller, wherein:
the chemical oxidation adjusting system is provided with a temperature monitor, a magnetic oxidant concentration monitor, a pollutant concentration monitor and a reaction control device, the controller is respectively connected with the temperature monitor, the magnetic oxidant concentration monitor, the pollutant concentration monitor and the reaction control device, and the controller controls an oxidation process of the chemical oxidation adjusting system through the reaction control device according to output data of the temperature monitor, the magnetic oxidant concentration monitor and the pollutant concentration monitor;
the temperature monitor is mounted in a monitoring well of the chemical oxidation adjusting system, and is used for monitoring temperature information in a chemical oxidation process in real time and outputting temperature data to the controller; the magnetic oxidant concentration monitor is mounted in the monitoring well of the chemical oxidation adjusting system, and is used for monitoring magnetic oxidant concentration information in the chemical oxidation process in real time and outputting magnetic oxidant concentration data to the controller; and the pollutant concentration monitor is mounted in the monitoring well of the chemical oxidation adjusting system, and is used for monitoring a pollutant concentration in the chemical oxidation process in real time and outputting pollutant concentration data to the controller;
when the temperature data is not in a preset temperature range, the controller controls the chemical oxidation adjusting system to reduce or increase a temperature; when the magnetic oxidant concentration is lower than a preset value and the pollutant concentration is not reduced to a preset value, the controller controls a reaction device of the chemical oxidation adjusting system to suspend, and after a certain amount of magnetic oxidant is put in, the reaction device is controlled to start to continue a reaction process; and when the pollutant concentration is reduced to the preset value, the controller controls the reaction device to stop;
the chemical oxidation adjusting system further comprises a magnetic field generator and a magnetic oxidant injection mechanism, the reaction control device is capable of controlling the magnetic field generator and the magnetic oxidant injection mechanism to start and stop, the magnetic field generator is capable of generating a high-frequency alternating strong magnetic field, and the magnetic oxidant injection mechanism is capable of preparing a magnetic oxidant solution with a specific concentration and pressing a certain amount of magnetic oxidant solution into an injection well of the chemical oxidation adjusting system; and when the magnetic field generator is energized, the magnetic field generator generates the high-frequency alternating strong magnetic field, the magnetic oxidant in the injection well generates heat due to an eddy current effect generated, so as to directly heat a polluted soil layer, thus degrading an organic pollutant into an inorganic small molecule with less toxicity or no toxicity; and
the reaction control device comprises a shell, a first guide plate and a second guide plate are arranged in the shell, a first switch is arranged on the first guide plate, a second switch is arranged on the second guide plate, the first switch is connected with a circuit of the magnetic field generator, the second switch is connected with a circuit of the magnetic oxidant injection mechanism, a first connecting rod, a second connecting rod, a first electromagnet, a second electromagnet and a pulling rod are also arranged in the shell, one ends of the first connecting rod and the second connecting rod are connected through a connecting block, one end of the pulling rod is fixedly connected with the connecting block, the other end of the pulling rod is fixedly connected with a pressing block, and a bottom portion of the connecting block is provided with an infrared sensor.