High-pressure dissolved oxygen oxidation treatment technology in waste water treatment

Abstract

The invention belongs to the field of waste water treatment technology, and especially relates to a high-pressure dissolved oxygen oxidation treatment technology in waste water treatment. The high-pressure dissolved oxygen oxidation treatment technology comprises anode oxidation reaction, cathode reduction-oxidation reaction, air floatation, and a reaction by using a flocculating agent. The high-pressure dissolved oxygen oxidation treatment technology comprises following steps: organic or inorganic substances of waste water are subjected to anode and cathode oxidation-reduction reaction, coacervation and flotation so as to separate pollutant out of the waste water; at the same time, the waste water is subjected to oxidation so as to oxidize organic or inorganic compounds in the waste water; and water with spacing of 1 to 2cm or 2 to 5cm is provided with voltage, pulse current is generated after high-pressure dissolved oxygen reaction, the organic compounds in the waste water are broken and decomposed because of the electrodes, and electrochemical reaction is performed. The invention also discloses an apparatus used for treating organic waste water with high difficult. The waste water is treated by combining catalysts and electrochemical reaction. The apparatus is small in occupied area, and high in effectiveness.

Description

Technical field: [0001] The invention relates to the technical field of wastewater treatment, in particular to a high-pressure dissolved oxygen oxidation process for wastewater treatment. Background technique: [0002] With the rapid development of my country's industry and the development plan of the National Day, the requirements of my country's environmental protection cause, my country's industrial sewage discharge is facing a huge opportunity for development. The current development of circular economy is of great significance to improving resource utilization and building a resource-saving and environment-friendly society. Resource reduction, reuse, and recycling are the three basic principles of implementing circular economy, comprehensive utilization of resources, and clean production. They are also the inevitable requirements for environmental pollution prevention and control to shift from end-to-end control to front-end control and to achieve sustainable social and...

AI Technical Summary

Problems solved by technology

[0007] 1. Adopt high-frequency pulse; high frequency, high energy consumption, prone to failure,

[0008] 2. Using direct current electrolysis, the treatment efficiency is relatively low, and the fouling of the plates is difficult to overcome, which leads to a rapid decline in the treatment efficiency affected by passivation, consumes a lot of energy, and causes an increase in energy consumption

[0009] 3. Using low-voltage pulses, the investment and operating costs are low, but the treatment effect is not good, and it does not conform to the environmental protection policy of energy conservation and emission reduction advocated by our country, and it is difficult to implement; at present, there are problems of excessive resistance in electroflocculation and the plate is easily blocked and passivated. , there is no good solution for the time being, the above processes have disadvantages such as high energy consumption, unstable operation, low treatment effect, inconvenient operation, and large equipment investment; there are many problems such as great safety hazards

However, the current environmental protection management requirements are strict and the standards have been raised. Many organic wastewater generated in the production process is difficult to be oxidized, and large rings and long chains are difficult to deal with, which brings great troubles to biological treatment.

Images