Wastewater degradation process based on photoelectric synergy

Abstract

The invention discloses a wastewater degradation process based on photoelectric synergy. The process comprises the following steps: 1, adding organic wastewater into a liquid storage tank, filtering,and removing particles in the organic wastewater by using a physical filtration mode; 2, introducing the filtered wastewater into a photoelectric degradation device through a circulating pump, and carrying out degradation treatment; 3, discharging the wastewater subjected to photoelectric degradation into a liquid storage tank, filtering, taking the flow as a cycle, re-discharging the wastewater finally discharged into the liquid storage tank into a photoelectric degradation device, and carrying out continuous circular treatment until COD and BOD reach the discharge standard; and 4, introducing the wastewater subjected to circular treatment into a membrane filtration assembly, and removing salt generated by degradation, so that the comprehensive water quality of the treated water finally reaches the sewage discharge standard. According to the invention, photocatalysis is used as a technical core, and the characteristics of a voltage and capacitance system are supplemented, so that rapid transfer of hole electrons is formed, the effect of rapid degradation is achieved, and the effect of water treatment is improved.

Description

technical field [0001] The invention belongs to the field of environmental protection and also belongs to the field of photocatalysis, and specifically relates to a wastewater degradation process based on photoelectric synergy. Background technique [0002] The continuous deepening of the industrialization process has caused a huge waste of resources and energy, water pollution, energy crisis and other issues have become prominent. The development of effective wastewater treatment processes has always been the focus of environmental protection. In terms of the composition of wastewater, wastewater can generally be divided into inorganic wastewater and organic wastewater. Inorganic wastewater mainly contains heavy metals, heavy metal complexes, acids and bases, cyanides, sulfides, halogen ions and other inorganic ions. Organic wastewater contains commonly used organic solvents, organic acids, ethers, polychlorinated biphenyls, organophosphorus compounds, petroleum, oils, phe...

AI Technical Summary

Problems solved by technology

However, from the perspective of photocatalytic technology, photogenerated electrons and holes are generated simultaneously during the catalytic process, and the two are easily recombined, which seriously affects the efficiency of photocatalytic degradation of organic matter, which also limits the in-depth application of photocatalytic technology in the field of environmental protection.