| abstract |
The invention discloses a method for treating aquaculture seawater tail water based on photoelectric catalysis to generate free radicals. For the photoanode, a layer of copper mesh is covered on the surface of the prepared air cathode, and a voltage of 1.1-5.0V is applied to realize seawater treatment. Under the assistance of natural light and applying a certain bias voltage, the photoanode undergoes photoelectric catalytic reaction to produce Cl 2 , and then generates HClO, which can kill algae and bacteria; the cathode undergoes oxygen reduction reaction to generate H 2 O 2 , H 2 O 2 forms OH· under the catalysis of copper, and OH· can directly oxidize to remove antibiotics and organic matter; at the same time, HClO reacts with OH· to generate chlorine oxygen free radical ClO·, which oxidizes and removes ammonia nitrogen and antibiotics in water, thereby realizing multi simultaneous removal of contaminants. |