TWI762222B

An integrated wastewater and sewage treatment system and method based on biological treatment and electrochemical ion capture technology includes a biological reaction device, a filter device, an electrochemical ion capture device, and a concentrated liquid return device. Wastewater and sewage are fed into the biological reaction device for degradation to form the first purification, and then flows into the electrochemical ion capture device through the filter device to perform the second purification, and the purified water is shunted and discharged after the second purification to achieve the effect of wastewater and sewage purification. By changing the voltage of the electrochemical ion capture device, the purified water or the concentrated solution can be selectively discharged, and the concentrated liquid is a high-concentration nutrient salt, which is then re-directed back to the biological reaction device through the concentrated liquid return device for the use of the microorganisms placed in the biol