Method for quickly starting efficient anaerobic ammonia oxidation reactor without deoxygenization

A rapid start-up technology for anaerobic ammonium oxidation, which is applied in the field of rapid start-up of high-efficiency anammox reaction without deoxygenation, and can solve problems such as restricting the popularization and application of anammox process and harsh operating conditions

Active Publication Date: 2015-05-13
FUJIAN PROVINCIAL ACADEMY OF ENVIRONMENTAL SCI
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for quickly starting the high-efficiency anaerobic ammonium oxidation reaction without removing oxygen, which solves the requirement of an absolute anaerobic environment and harsh operating conditions in the existing process, which seriously restricts the popularization and application of the anammox process question

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  • Method for quickly starting efficient anaerobic ammonia oxidation reactor without deoxygenization

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Embodiment 1

[0027] Embodiment 1: the anaerobic granular sludge in the IC reaction tower of a tobacco wastewater treatment process in Fujian Province and the granular sludge with anaerobic ammonium oxidation activity (sludge color is light red, and the TN volume removal load is 0.24kgN / (m 3 d), the total nitrogen removal rate is over 80%), the amount of inoculated sludge is 5L and 0.2L respectively, and the total inoculated sludge is about 30% of the effective volume of the UASB reactor. The UASB reactor is made of plexiglass, with an inner diameter of 14cm, a column height of 120cm, and an effective volume of 17L. Wrap the outside of the reactor with aluminum foil tape to avoid light and heat preservation, and control the temperature in the UASB reactor to 35°C by heating in a water bath. The influent water enters the reactor through the peristaltic pump, and flows from bottom to top after uniform water distribution. After the reaction is completed, the gas-solid-liquid is separated by ...

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Abstract

The invention discloses a method for quickly starting an efficient anaerobic ammonia oxidation reactor without deoxygenization. The method comprises the following steps: adding prepared anaerobic granular sludge into a UASB (upflow anaerobic sludge blanket) reactor, pumping inlet water into the UASB reactor heated in a water bath, and setting hydraulic retention time (HRT) to be 12 hours, wherein the inlet water is nitrogen-containing wastewater; after two days, pumping granular sludge with anaerobic ammonia oxidation activity into the UASB reactor, stirring the sludge in the UASB reactor once every five days, lasting stirring for 0.5 hours each time, setting HRT to be 4 hours when stirring, and finish the whole process after reacting for 70 days, wherein the granular sludge with the anaerobic ammonia oxidation activity accounts for 4% by weight of the anaerobic granular sludge. The method has the benefit that the efficient anaerobic ammonia oxidation reactor can be quickly started without deoxygenization.

Description

technical field [0001] The invention belongs to the technical field of wastewater biological treatment, and relates to a method for quickly starting an efficient anaerobic ammonium oxidation reaction without removing oxygen. Background technique [0002] According to the China Environmental Bulletin, the total amount of ammonia nitrogen emissions in 2013 was 2.457 million tons, and there is still a lot of pressure to reduce emissions. Nitrogen pollution is becoming more and more serious, and eutrophication is very serious, which has gradually become a bottleneck problem restricting the social development of our country. With the increasingly serious problem of nitrogen pollution in water bodies in my country and the increasingly stringent sewage discharge standards, the research and application of efficient denitrification technology for wastewater has become one of the research hotspots in the field of water pollution control. [0003] In an anaerobic environment, anammox ...

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Application Information

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IPC IPC(8): C02F3/28
CPCC02F3/2846C02F2101/16
Inventor 陈益明邱凌峰张健吴煌州
Owner FUJIAN PROVINCIAL ACADEMY OF ENVIRONMENTAL SCI
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