Intelligent Low-Carbon Treatment and Reuse System for Stormwater and Wastewater

An intelligent low-carbon treatment and reuse system for stormwater and wastewater, comprising:

• a bioretention module, a numerically controlled drainage module, a stormwater and wastewater collection module, an irrigation module and a control module;
• the bioretention module is configured to collect stormwater, improve species of bacterial flora, and treat the stormwater to obtain treated stormwater;
• the numerically controlled drainage module is configured to collect oxidation-reduction potential data and pH data of the treated stormwater and transmit them to the control module as environmental data, and discharge the treated stormwater for a preset time period based on a first control signal sent by the control module;
• the stormwater and wastewater collection module is configured to store the discharged treated stormwater and maintain water storage volume within a preset range;
• the stormwater and wastewater collection module comprises:
• a water inlet tank, a make-up water pipe, a float valve, an overflow tank, a water pipe check valve and an overflow port;
• the make-up water pipe is arranged at a preset height on one side of the water inlet tank, the make-up water pipe is in communication with the water inlet tank, and is configured to connect to a wastewater pipe network to introduce wastewater;
• the float valve is arranged on the make-up water pipe, and configured to introduce wastewater through the make-up water pipe when the water amount of the water inlet tank is lower than the height of the make-up water pipe, and stop introducing wastewater when the water level reaches the height of the make-up water pipe;
• the irrigation module is configured to collect soil moisture data of the bioretention module and transmit it to the control module, and extract the stored water in the stormwater and wastewater collection module to irrigate the bioretention module based on a second control signal sent by the control module;
• the control module is configured to receive the environmental data and perform a dual-condition judgment, send the first control signal when a preset condition is met, receive the soil moisture data, and send the second control signal when a set condition is met;
• the system further comprises a hierarchical power supply control module;
• the hierarchical power supply control module is configured to power the numerically controlled drainage module, the irrigation module and the control module, collect precipitation signals and transmit them to the control module, and preferentially power the numerically controlled drainage module based on a third control signal sent by the control module, or preferentially power the irrigation module based on a fourth control signal sent by the control module;
• the control module is further configured to receive and judge the precipitation signals, and send the third control signal or the fourth control signal according to a judgment result;
• the control module comprises a dual-condition judgment unit, a precipitation monitoring unit, a receiving unit, a humidity analysis unit, and a sending unit;
• the dual-condition judgment unit is configured to judge whether a difference of the oxidation-reduction potential data at a preset time interval within a continuous preset number of times is less than a first threshold value, and if so, a first judgment standard is met, and after the first judgment standard is met, a total radiative forcing is calculated based on the oxidation-reduction potential data and the pH data, and when the total radiative forcing is less than a second threshold value, a second judgment standard is met, and the first control signal is sent to the sending unit;
• the precipitation monitoring unit is configured to make a judgment based on the precipitation signals, and send the third control signal to the sending unit when in a precipitation state, and send the fourth control signal to the sending unit when in a dry state;
• the receiving unit is configured to receive the environmental data, the soil moisture data and the precipitation signals, and transmit them to the dual-condition judgment unit, the humidity analysis unit and the precipitation monitoring unit accordingly;
• the humidity analysis unit is configured to send the second control signal to the sending unit when the soil moisture data is less than a third threshold value;
• the sending unit is configured to receive and send the first control signal, the second control signal, the third control signal or the fourth control signal.