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Integrated synchronized autotrophic nitrogen removal and enhanced biological phosphorus removal system and method

A technology for biological phosphorus removal and autotrophic nitrogen removal, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. and other problems, to achieve the effect of improving controllability, easy implementation, stable maintenance, and optimization of system operation

Active Publication Date: 2017-09-15
BEIJING UNIV OF TECH
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Problems solved by technology

The traditional nitrification and denitrification denitrification and phosphorus removal process requires a large amount of aeration, additional addition of organic carbon sources and alkalinity, high investment and operation costs, and may cause secondary pollution

Method used

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  • Integrated synchronized autotrophic nitrogen removal and enhanced biological phosphorus removal system and method
  • Integrated synchronized autotrophic nitrogen removal and enhanced biological phosphorus removal system and method

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Embodiment Construction

[0030] combined with figure 1 The present invention is further illustrated with examples and implementations.

[0031] Such as figure 1 As shown, the method of integrated autotrophic denitrification and synchronously enhanced biological phosphorus removal includes: urban domestic sewage raw water tank (1), integrated EBPR+PN / A-SBR reactor (3), real-time control platform (14 ). The urban domestic sewage raw water tank (1) is connected with the integrated EBPR+PN / A-SBR reactor (3) through the water inlet pump (2). The integrated EBPR+PN / A-SBR reactor is equipped with water inlet (4), mixer (5), air pump (6), aeration pan (7), gas flow meter (8), sponge packing frame (9), NH 4 + -N sensor (10), NO 2 - -N sensor (11), NO 3 - -N sensor (12), DO, pH meter (13), real-time control platform (14), overflow port (15), water outlet (16), water outlet valve (17), mud discharge valve (18), outlet water tank (19).

[0032] The method of integrated autotrophic denitrification and s...

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Abstract

The invention relates to an integrated synchronized autotrophic nitrogen removal and enhanced biological phosphorus removal system and method, which belong to the field of biological treatment of sewage. The integrated synchronized autotrophic nitrogen removal and enhanced biological phosphorus removal system mainly involves three types of bacteria: nitrite bacteria, phosphorus-accumulating bacteria and anaerobic ammonium oxidation bacteria attached to sponge filler. Urban domestic sewage gets into an integrated EBPR+PN / A-SBR reactor via a water inlet tank, and in an anaerobic zone, phosphorus is released by the phosphorus-accumulating bacteria and an internal carbon source is stored; after phosphorus release is complete, aeration is started, partial short-cut nitrification and aerobic phosphorus uptake reaction are carried out, and meanwhile, partial synchronous anaerobic ammonia oxidation takes place; and in an anoxic zone, the anaerobic ammonium oxidation bacteria utilize remaining ammonia nitrogen and nitrite nitrogen produced by short-cut nitrification to carry out anaerobic ammonium oxidation reaction. The carbon source of raw water is sufficiently utilized, a sponge filler biomembrane is suitable for the growth of the anaerobic ammonium oxidation bacteria with a long sludge age, the contradiction with the sludge age of the phosphorus-accumulating bacteria is overcome, the energy consumption of aeration is reduced, and moreover, the objective of low-carbon-to-nitrogen ratio deep urban domestic sewage nitrogen and phosphorus deep removal can be achieved.

Description

technical field [0001] The invention relates to a device and method for integrated autotrophic denitrification and synchronously enhanced biological phosphorus removal, belonging to the field of sewage biological treatment. Background technique [0002] In recent years, the aggravation of nitrogen and phosphorus pollution is the main reason for the large-scale outbreak of algal blooms and red tides in lakes, rivers, and coastal waters in China, and it is also one of the major environmental problems facing society today. The traditional nitrification and denitrification denitrification and phosphorus removal process requires a large amount of aeration, additional addition of organic carbon sources and alkalinity, high investment and operation costs, and may cause secondary pollution. Therefore, low energy consumption, economical and efficient removal of organic matter in sewage, and deep nitrogen and phosphorus removal at the same time are the development direction of sewage ...

Claims

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Application Information

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IPC IPC(8): C02F3/30
CPCC02F3/301C02F3/307C02F3/308
Inventor 彭永臻崔慧慧李夕耀张琼
Owner BEIJING UNIV OF TECH
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