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Method for domesticating and starting high-load mainstream anammox reactor

A technology of anaerobic ammonium oxidation and reactor, applied in chemical instruments and methods, anaerobic digestion treatment, water/sludge/sewage treatment, etc. decline, slow growth of anammox bacteria, etc.

Active Publication Date: 2019-08-09
HANGZHOU NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Anammox bacteria have the disadvantages of slow growth, low cell yield, and sensitivity to changes in environmental conditions.
Low influent nitrogen concentration will slow down the growth of anammox bacteria, and low temperature will lead to a significant decrease in the activity of anammox bacteria, and the nitrogen removal capacity will decrease accordingly

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  • Method for domesticating and starting high-load mainstream anammox reactor
  • Method for domesticating and starting high-load mainstream anammox reactor
  • Method for domesticating and starting high-load mainstream anammox reactor

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. The experimental method that does not indicate specific conditions in the following examples is usually according to conventional conditions, or according to the conditions suggested by the manufacturer.

[0042] (1) An upflow anaerobic sludge bed reactor with an effective volume of 1.0L was used to inoculate the anammox granular sludge dominated by undetermined Kueneniastuttgartiensis bacteria. The abundance of undetermined Kuenenia stuttgartgartiensis bacteria was 30%-35% of the total %, the reactor is placed in a constant temperature box at 35±1°C, anaerobic and dark, and the initial sludge concentration is 17.0g VSS L -1 , and the hydraulic retention time is 1.37h.

[0043] The initial...

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Abstract

The invention discloses a method for domesticating and starting a high-load mainstream anammox reactor. The method comprises the following steps: inoculating the reactor with anammox granular sludge with an undetermined Kutenia stuttgartiensis bacterium as a dominant bacterium, pumping influent water containing NH<4><+>-N and NO<2><->-N with a mass concentration ratio of 1:(0.9-1.1) into the reactor, and running the reactor under anaerobic, dark and 30-36 DEG C conditions until stability; changing the running temperature to 24-26 DEG C, stopping the feeding of the influent water A, pumping influent water B containing NH<4><+>-N and NO<2><->-N with a mass concentration ratio of 1:(1.0-1.5) and the respective mass concentration of NH<4><+>-N and NO<2><->-N of 50 mg L<-1> or below, running the reactor until stability, then changing the running temperature to 14-16 DEG C, and running the reactor until stability again; and increasing the total nitrogen load of the influent water, and stopping the increase of the total nitrogen load of the influent water when the total nitrogen concentration of effluent water is more than 10 mg L<-1> in order to complete the domesticating and starting ofthe high-load mainstream anammox reactor.

Description

technical field [0001] The invention relates to the technical field of sewage biological treatment, in particular to a method for acclimating and starting a high-load mainstream anaerobic ammonium oxidation reactor. Background technique [0002] The biological denitrification process of sewage treatment started from the nitrification and denitrification process in the 1960s. After half a century of development, it has gradually derived a variety of process forms. These traditional processes consume a lot of water while stably and reliably solving eutrophication. energy and resources. Today, with the emphasis on turning sewage into resources and energy, the nitrogen removal technology centered on anaerobic ammonium oxidation is generally regarded by the industry as an important technology for the future development of sewage treatment. [0003] The anaerobic ammonium oxidation reaction uses ammonia as the electron donor and nitrite as the electron acceptor to generate nitrog...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F3/34C02F101/16C02F101/38
CPCC02F3/2846C02F3/34C02F2203/004C02F2101/16C02F2101/166C02F2301/103C02F2101/38
Inventor 金仁村程雅菲李桂凤张茜薛苑郑夏萍蔡爽
Owner HANGZHOU NORMAL UNIVERSITY