Anaerobic ammonia oxidation-couped denitrification composite denitrification system and quick starting method

A combination of anaerobic ammonium oxidation and anaerobic ammonium oxidation technology, applied in the field of biological nitrogen removal, to achieve the effect of low demand, high nitrogen removal effect, and high total nitrogen removal rate

Pending Publication Date: 2019-11-12
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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However, there are few reports on how to quickly start the anaerobic

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  • Anaerobic ammonia oxidation-couped denitrification composite denitrification system and quick starting method
  • Anaerobic ammonia oxidation-couped denitrification composite denitrification system and quick starting method
  • Anaerobic ammonia oxidation-couped denitrification composite denitrification system and quick starting method

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[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] The present invention proposes an anaerobic ammonium oxidation coupled denitrification compound denitrification system and a quick start-up method. The system mainly includes two parts: anoxic device and anaerobic device. The specific operation process is as follows:

[0031] The first step: set the initial hydraulic retention time and aeration time and interval, so as to determine according to the matrix composition (ammonium bicarbonate, potassium dihydrogen phosphate, sodium bicarbonate, anhydrous magnesium chloride, anhydrous calcium chloride, other trace elements) Nitrogen load;

[0032] Step 2: Determine the air flow of the aeration pump according to the set aeration interval and time, and use the gas flow meter to monitor in real time;

[0033] Step 3: Select the appropriate sludge (the end of the anoxic tank of the urban sewage plant) as the i...

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Abstract

The invention discloses an anaerobic ammonia oxidation-coupled denitrification composite denitrification system and a quick starting method. The system is composed of an anoxic tank and an anaerobic tank, the anoxic tank performs periodic aeration through an aeration pump, a sequencing batch operation mode is adopted, the anaerobic tank is an up-flow sludge bed reactor, the anoxic tank mainly performs partial nitrosation, and effluent enters an anaerobic device for next anaerobic ammonia oxidation and denitrification reaction. According to the invention, a matrix formula without organic matterin inlet water is adopted; by gradually shortening the hydraulic retention time (from 7h to 4h) and precisely regulating and controlling dissolved oxygen based on the nitrogen form in the process, aseed sludge system taking denitrification as a main denitrification path is quickly cultured into a denitrification system taking anaerobic ammonia oxidation as a main part and denitrification as an auxiliary part.

Description

technical field [0001] The invention relates to the technical field of biological denitrification, in particular to an anaerobic ammonium oxidation coupled denitrification compound denitrification system and a quick start method. Background technique [0002] Traditional nitrification-denitrification denitrification is the most commonly used denitrification process in sewage treatment plants in my country, but because of its large demand for carbon sources and oxygen, the energy consumption is too high, which seriously increases the operating cost of sewage treatment plants. As the construction of a resource-saving society penetrates into various production practice links, the traditional denitrification process with high energy consumption and poor environmental friendliness can no longer meet the requirements of the current development of urban sewage treatment. Develop a low-energy and efficient nitrogen removal process imminent. [0003] Under the above background, anae...

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Application Information

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IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/307C02F2209/22C02F2209/44C02F2209/16C02F2101/16
Inventor 陈荣雷振王俊杨舒茗黄兴园
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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