Plug flow reaction device for stable operation of nitrosation-anaerobic ammoxidation technology, and method thereof

A technology of anaerobic ammonium oxidation and stable operation, applied in the field of plug-flow reaction devices, can solve problems such as difficult stable operation and nitrate accumulation, and achieve the effect of improving effluent water quality and increasing biological activity

Active Publication Date: 2018-08-24
BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems that the current mainstream nitrosation-anammox process is difficult to run stably and prone to nitrate accumulation in the existing methods, and provides a promotion for the stable operation of the nitrosation-anammox process. Flow reaction apparatus and method

Method used

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  • Plug flow reaction device for stable operation of nitrosation-anaerobic ammoxidation technology, and method thereof
  • Plug flow reaction device for stable operation of nitrosation-anaerobic ammoxidation technology, and method thereof
  • Plug flow reaction device for stable operation of nitrosation-anaerobic ammoxidation technology, and method thereof

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specific Embodiment approach 1

[0029] Specific Embodiment 1: The push-flow reaction device for the stable operation of the nitrosation-ANAMMOX process in this embodiment includes: water inlet pipe 1, water inlet tank 2, water inlet hole 3, fixed packing tank 4, dissolved oxygen temperature online monitoring probe 5. Water bath heating device 6, corridor partition 7, outlet weir 8, outlet tank 9, outlet pipe 10 and aeration head 11,

[0030] One end of the fixed stuffing tank 4 is connected with the water inlet tank 2 and the water outlet tank 9, the end face where the fixed stuffing tank 4 is connected with the water inlet tank 2 is provided with a water inlet hole 3, and the end face where the fixed stuffing tank 4 is connected with the water outlet tank 9 is provided with There is an outlet weir 8, an inlet pipe 1 is provided on the inlet tank 2, and the inlet pipe 1 passes through the water bath heating device 6, an outlet pipe 10 is arranged on the outlet tank 9, and the outlet pipe 10 passes through the...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment differs from Embodiment 1 in that the corridor is filled with fixed fillers, and the dissolved oxygen temperature online monitoring probe 5 is inserted into the fixed fillers. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the fixed filler is a polyurethane sponge connected in series by copper wires and fixed on a steel frame, and then the steel frame is placed in the corridor. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a plug flow reaction device for stable operation of a nitrosation-anaerobic ammoxidation technology, and a method thereof. The purpose of the invention is to solve the technical problem of easiness in accumulating nitrates, caused by difficult stable operation of the current mainstream nitrosation-anaerobic ammoxidation technology in the prior art. The device comprises a water inlet tube, a water inlet tank, a water inlet hole, a fixed packing tank, a dissolved oxygen temperature online monitoring probe, a water bath heater, a gallery separator plate, a water outlet weir, a water outlet tank, a water outlet tube and an aeration head. The method comprises the following steps: inoculating with sludge; and 2, starting the device. Intermittent aeration, total aerationamount control, low dissolved oxygen concentration, residual ammonia inhibition and nitrite-oxidizing bacterium generation inhibiting ways are combined to realize the stable operation of the nitrosation-anaerobic ammoxidation technology, inhibit the activity of the nitrite-oxidizing bacteria and avoid the unstable running of a reactor, caused by the accumulation of nitrates.

Description

technical field [0001] The invention relates to a plug-flow reaction device and method for realizing stable operation of nitrosation-anammox process. Background technique [0002] The traditional biological denitrification technology is a sewage denitrification technology based on nitrification and denitrification. A variety of sewage treatment processes based on nitrification and denitrification, such as anoxic / aerobic (A / O) process, anaerobic / anoxic / aerobic (A 2 / O) technology has been widely used in various sewage treatment plants. However, these denitrification processes based on nitrification and denitrification not only require a large amount of aeration in the front-stage nitrification process, but also require additional carbon sources due to the lack of COD in the latter-stage denitrification projects, and the investment and operation costs are high. The advocated energy-saving and low-consumption sustainable development policy does not match. [0003] Anammox re...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F101/16
CPCC02F3/2853C02F2101/16C02F2203/006
Inventor 高大文彭正阳
Owner BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
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