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A rapid start-up method for continuous flow improved UCT autotrophic nitrogen and phosphorus removal process based on anaerobic ammonium oxidation

An anammox and autotrophic denitrification technology is applied in the field of rapid start-up of the continuous flow improvement UCT autotrophic nitrogen and phosphorus removal process based on anammox, which can solve the problems of long start-up time of the Anammox process and achieve bacterial It has the effect of high efficiency of separate cultivation, shortening of startup time, and reduction of heating power costs and pharmaceutical costs.

Active Publication Date: 2018-03-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of long start-up time of the current Anammox process, and to provide a rapid start-up method based on anaerobic ammonium oxidation continuous flow improved UCT autotrophic denitrification and dephosphorization process

Method used

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  • A rapid start-up method for continuous flow improved UCT autotrophic nitrogen and phosphorus removal process based on anaerobic ammonium oxidation
  • A rapid start-up method for continuous flow improved UCT autotrophic nitrogen and phosphorus removal process based on anaerobic ammonium oxidation
  • A rapid start-up method for continuous flow improved UCT autotrophic nitrogen and phosphorus removal process based on anaerobic ammonium oxidation

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specific Embodiment approach 1

[0024] Specific embodiment 1: This embodiment is a continuous flow modified UCT autotrophic nitrogen and phosphorus removal process based on anaerobic ammonium oxidation. The method is carried out according to the following steps:

[0025] 1. Build the system:

[0026] Two sets of denitrification phosphorus removal systems, two short-cut nitrification systems and two anaerobic ammonia oxidation systems were built; the denitrification phosphorus removal system and the short-cut nitrification system were in the form of sequence batch reactors; the anaerobic ammonia oxidation system was anaerobic Filter form;

[0027] 2. Inoculated sludge

[0028] The denitrification phosphorus removal system is inoculated with ordinary activated sludge with phosphorus removal ability, and the inoculated sludge concentration is 4000~5000mg / L; the short-cut nitrification sludge system is inoculated with nitrification performance of ordinary nitrified sludge, and the inoculation sludge concentration is 300...

specific Embodiment approach 2

[0040] Embodiment 2: This embodiment is different from Embodiment 1 in that the effective solvent of the denitrification phosphorus removal system and the short-range nitrification system is 10L, an aeration device is set at the bottom, and a stirring device is set at the top. Others are the same as the first embodiment.

specific Embodiment approach 3

[0041] Specific embodiment three: This embodiment is different from specific embodiment one or two in that: the effective volume of the anaerobic ammonia oxidation system is 8L, the height-to-diameter ratio is 3.5, the upper part is equipped with a stirring device and a gas collection device, and a sponge packing frame is arranged inside , The sludge internal circulation pump is set outside. Others are the same as the first or second embodiment.

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Abstract

The invention provides a quick starting method of an anaerobic-ammoxidation-based continuous-flow improved UCT autotrophic denitrification / dephosphorization technique, relating to a quick starting method of an anaerobic-ammoxidation-based continuous-flow synchronous denitrification / dephosphorization technique. The invention aims to solve the problems of overlong starting time and difficulty in application to the continuous flow technique in the existing autotrophic denitrification technique. The method comprises the following steps: 1. establishing a system; 2. inoculating sludge; 3. starting the operating system, and carrying out enrichment culture on various strains; and 4. establishing the continuous-flow improved UCT autotrophic denitrification / dephosphorization technique, and starting the technique. The three types of functional bacteria (DPAOs (denitrifying phosphate accumulating organisms), AOB (ammonia oxidizing bacteria) and Anammox) are respectively subjected to enrichment culture and combined to operate to start the continuous-flow improved UCT autotrophic denitrification / dephosphorization technique; and thus, the starting mode is more flexible, the strain separate culture is more efficient, and the starting time is shorter. The method is applicable to the technical field of sewage biological treatment.

Description

Technical field [0001] The invention relates to a quick start method of a continuous flow improved UCT autotrophic nitrogen and phosphorus removal process based on anaerobic ammonia oxidation. Background technique [0002] Anaerobic ammonium oxidation (Anammox) means that under anaerobic conditions, anammox bacteria use ammonia nitrogen (NH 4 + ) Is the electron donor, with nitrite (NO 2 - ) Is an electron acceptor, which directly converts ammonia nitrogen and nitrite nitrogen into nitrogen at the same time and releases it into the atmosphere, thereby achieving the purpose of removing nitrogen in wastewater. Compared with traditional biological nitrogen removal technology, anammox autotrophic nitrogen removal technology can save 100% of the organic carbon source consumption and 60% of the aeration volume, thereby reducing the direct energy consumption and operating costs of the process; The low sludge output can reduce the cost of sludge disposal; in addition, anammox bacteria us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F3/02C02F3/28C02F3/2826C02F3/307C02F3/308C02F3/341C02F9/00C02F2101/105C02F2101/16C02F2101/166C02F2301/08
Inventor 彭永臻刘文龙王淑莹马琳娜
Owner HARBIN INST OF TECH
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