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Integrated short-cut nitrification-anaerobic ammonium oxidation sewage treatment acclimation method and equipment

A technology for anaerobic ammonium oxidation and sewage treatment, which is applied in the field of integrated short-range nitrification-anammox sewage treatment and domestication, which can solve the difficulty in realizing the enhanced oxidation process of nitrite oxidizing bacteria and the slow proliferation rate of anammox bacteria , Difficult enrichment of bacteria and other problems, to achieve the effect of improving short-cut nitrification performance, increasing the duration, and low aeration

Pending Publication Date: 2019-07-09
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV +1
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  • Application Information

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Problems solved by technology

However, the growth rate of anammox bacteria is slow, and the period of time can reach 11 days; during the process operation, there will be problems that the bacteria are difficult to enrich and the activity is low
Secondly, there is competition for nitrite substrates in the integrated system, which mainly occurs between nitrite oxidizing bacteria and anammox bacteria
Therefore, both the sludge loss and the enhanced activity of nitrite oxidizing bacteria will make it difficult to realize the integrated short-cut nitrification-ANAMMOX process

Method used

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  • Integrated short-cut nitrification-anaerobic ammonium oxidation sewage treatment acclimation method and equipment
  • Integrated short-cut nitrification-anaerobic ammonium oxidation sewage treatment acclimation method and equipment

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Embodiment 1

[0029]An integrated short-range nitrification-ANAMMOX sewage treatment and domestication method, in which the sewage is treated in a sequential batch treatment mode, specifically, the reactor is first filled with anaerobic ammonium oxidation biofilm filler, and then the sewage to be treated is passed through The water inlet pump is pumped into the reactor, the stirrer is turned on to stir the materials in the reactor, and the temperature in the reactor is maintained at room temperature (generally around 26°C) by the temperature control device. The effective volume of the reactor used in this example is 6L; the operation cycle of the sewage treatment in the reactor includes the water intake stage, the reaction stage, the standing stage and the drainage stage, and the water inlet of the reactor per operation cycle is 1.5L, and the water outlet It is 1.5L, and the hydraulic retention time is 24h. In the reaction stage, the opening and closing of the aeration device is regularly c...

Embodiment 2

[0031] figure 1 It is a structural schematic diagram of an embodiment of the integrated short-range nitrification-ANAMMOX sewage treatment domestication device of the present invention. Such as figure 1 As shown, the integrated short-cut nitrification-anammox sewage treatment domestication device of this embodiment includes a reactor 1 and an aeration device 2 . The reactor 1 is used as a domestication device for sewage treatment, and is filled with anaerobic ammonium oxidation biofilm filler 5 . Reactor 1 is specifically a cylindrical plexiglass reactor with a height of 50 cm, an inner diameter of 15 cm, and an effective volume of 6 L. The reactor 1 is provided with a water inlet and a water outlet, and the water outlet is higher than the water inlet. The sewage treatment domestication method and device also include an inlet pump 6 and a drainage pump 7, the inlet pump 6 communicates with the water inlet of the reactor 1, and the drainage pump 7 communicates with the outle...

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Abstract

The invention discloses an integrated short-cut nitrification-anaerobic ammonium oxidation sewage treatment acclimation method and equipment. The integrated short-cut nitrification-anaerobic ammonia oxidation sewage treatment acclimation method utilizes the reaction equipment and adopts an intermittent step aeration operation mode for sewage treatment acclimation; the reaction equipment comprisesa reactor and an aeration device, and the aeration device is used for oxygenating the reactor in the aerobic stage of the reaction; and the method specifically comprises the following steps: the aeration device is controlled for intermittent step aeration in the sewage treatment domestication process to realize the reaction mode of multi-stage aerobic / anoxic alternated operation of sewage treatment in the reactor, and duration of a next-stage aerobic stage is greater than duration of a previous-stage aerobic stage. Through the above manner, the sewage treatment acclimation method and equipmentprovided by the invention can realize and stably operate the integrated short-cut nitrification and anaerobic ammonium oxidation process, and achieve the purpose of autotrophic nitrogen removal, in the acclimation process, external addition of organic carbon is not needed, the aeration amount is low, and the total nitrogen removal amount of the system is high.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an integrated short-range nitrification-anammox sewage treatment domestication method and device. Background technique [0002] The problem of water pollution is becoming more and more serious. The large amount of pollutants contained in sewage will cause harm to the environment. At the same time, the reproduction of pathogenic microorganisms will also cause the spread of diseases and affect human health. Generally, organic carbon, nitrogen, phosphorus and other pollutants contained in sewage can be removed by activated sludge or biofilm process. 2014 is the 100th anniversary of the birth of the activated sludge process, and relevant researchers began to rethink the future development direction of sewage treatment. Organic carbon, nitrogen and phosphorus in sewage should not only be treated as waste, but can also be recycled as resources. For example, organic carbon in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/302C02F2101/16C02F2203/006
Inventor 吴光学冯照璐郭玉梅郭昉林阳
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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