Frontier Technology of Industrial Wastewater Treatment

Micro-electrolysis technology is an ideal process for treating high-concentration organic wastewater. The process is used for the treatment of high-salt, difficult-to-degrade, high-chroma wastewater not only can greatly reduce the COd and chroma, but also greatly improve the biodegradability of the wastewater.

This technology uses the micro-electrolysis filler filled in the micro-electrolysis equipment to produce a "primary battery" effect to treat wastewater without electricity. When water is passed through, numerous "primary batteries" with a potential difference of 1.2V will be formed in the device. The "primary battery" uses waste water as electrolyte, and electrolytic oxidation and reduction treatment are performed on the waste water through the formation of electric current through discharge to achieve the purpose of degrading organic pollutants. The new ecology [?OH], [H], [O], Fe2+, Fe3+, etc. produced during the treatment process can undergo redox reactions with many components in the wastewater, such as destroying the color of colored substances in the colored wastewater Groups or auxochrome groups, or even chain scission, achieve the effect of degradation and decolorization; the generated Fe2+ is further oxidized to Fe3+, and their hydrates have strong adsorption-flocculation activity, especially after adding alkali to adjust the pH value. Ferrous hydroxide and ferric hydroxide colloidal flocculants, their flocculation ability is much higher than the ferric hydroxide colloid obtained by hydrolysis of general agents, and can flocculate a large number of small particles, metal particles and organic macromolecules dispersed in water. Its working principle Based on the combined effects of electrochemistry, oxidation-reduction, physics and flocculation precipitation. The process has the advantages of wide application range, good treatment effect, low cost, short treatment time, convenient operation and maintenance, and low power consumption. It can be widely used in the pretreatment and advanced treatment of industrial wastewater.