Intensive aeration internal circulation iron-carbon micro-electrolysis device

Abstract

The invention discloses an intensive aeration internal circulation iron-carbon micro-electrolysis device which comprises a tank body and an intensive aeration circulation flow guide device. A water distribution area, a supporting layer, a filler area and a capping water layer area are arranged in the tank body from bottom to top. The intensive aeration circulating flow guide device comprises an outer flow guide cylinder, an inner flow guide cylinder, an intensive aeration head and a water absorption guide pipe. The lower end of the outer guide cylinder is communicated with the water distribution area, and the upper end is higher than the capping water layer area. The upper end of the inner guide cylinder is higher than the capping water layer area, and the lower end of the inner guide cylinder is closed. And the intensive aeration head is positioned at the lower part in the inner flow guide pipe. And the upper end of the water absorption conduit is positioned in the capping water layer area outside the outer conduit, and the lower end is communicated with the lower part of the inner flow guide pipe. An excellent decarburization (organic matter removal) effect is achieved, and the function of improving the biodegradability of incoming water is also achieved; and meanwhile, the device has the advantages of no hardening, no passivation, no color reversion, low operation cost, simplicity in manufacturing of core process facilities, convenience in installation and operation, long service life and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an intensive aeration internal circulation iron-carbon micro-electrolysis device capable of simultaneously realizing high-efficiency biological decarbonization and color removal and improving the biodegradability of incoming water. Background technique [0002] The micro-electrolysis method is a process method that uses the principle of metal corrosion to form a primary battery to treat wastewater. It is also known as the internal electrolysis method, zero-valent iron method, and iron filings filtration method. The process has the characteristics of wide application range, simple process and good treatment effect. In order to improve the removal efficiency of iron-carbon fillers for wastewater, from the first generation of cast iron chips or iron shavings to the second generation of iron-carbon fixed beds to the third generation of high-temperature sintered microporous i...

AI Technical Summary

Problems solved by technology

[0008] In summary, the traditional iron-carbon micro-electrolysis and the later improved internal circulation iron-carbon micro-electrolysis have obvious defects in the actual application process, such as: easy hardening of fillers, passivation, or water return, etc., which greatly Increased later operating costs and human labor, thus affecting the promotion and application of such technologies

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