Rural sewage denitrification treatment system

Abstract

The invention discloses a rural sewage denitrification treatment system which comprises a buffer tank, a coarse screen, an inclined plate sedimentation tank, an aeration nitrification tank, a biological dephosphorization tank, a pH regulating tank, a high voltage discharge organic rhodium catalysis polymerization reaction tank, a water purification tank and a weak nitrocotton drying forming system and the like. According to the system, the high energy discharge capacity effect generated by high-voltage arc is utilized creatively, nitrate ions under the conditions undergo a catalytic polymerization reaction on the surface of an organic compound of transition metal element rhodium, so that ionic bonds in the nitrate ions in the sewage undergo bond fission and recombination, cellulose nitrate can be generated and collected, and the resource recycle is achieved. Since the reaction is performed in a liquid state substrate, the reaction efficiency and speed are controlled, only the weak nitrocotton can be generated, the generation of strong nitrocotton or collodion with a higher nitrogen content is avoided, and thus the risk of explosion in running is eliminated.

Description

technical field [0001] The invention relates to a denitrification treatment system for rural sewage, which belongs to the field of waste water treatment in environmental protection. Background technique [0002] China's per capita water resources are small and the spatial distribution is uneven. At the same time, China is a large agricultural country. Most of the country's land area is in rural areas, and the agricultural population accounts for more than half of the country's population. Therefore, the amount of sewage discharged by production and life in rural areas in our country is huge. Rural sewage mainly includes wastewater from agricultural production, washing and bathing, excrement, animal breeding and landfill leachate. However, the development of my country's rural areas is relatively backward and the technical conditions are limited. Most of the sewage is directly discharged into lakes and rivers or used for land infiltration irrigation, causing extensive pollut...

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Problems solved by technology

[0008] The above-mentioned traditional treatment methods have certain shortcomings, such as high investment and operating costs, large material consumption, low nitrate nitrogen removal efficiency, etc.

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