Device for enriching anaerobic ammonia-oxidizing bacteria and method for treating wastewater by using the device

A technology for enriching red bacteria and treating wastewater, which is applied in the adjustment methods of biological treatment, water treatment parameter control, chemical instruments and methods, etc. , slow growth of anammox bacteria, etc., to achieve the effect of shortening sludge retention time, shortening hydraulic retention time, and increasing holding capacity

Pending Publication Date: 2022-02-08
黑龙江红菌生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] (1) When the traditional process is used for rapid enrichment and cultivation of anaerobic ammonium oxidation particles, organic carbon sources need to be supplemented, the sludge output is large, and the cost of sludge disposal is high. The operation of the equipment is easy to cause the loss of bacteria, which is not conducive to the enrichment of bacteria
[0007] (2) The anammox bacteria used in the traditional anammox process g

Method used

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  • Device for enriching anaerobic ammonia-oxidizing bacteria and method for treating wastewater by using the device
  • Device for enriching anaerobic ammonia-oxidizing bacteria and method for treating wastewater by using the device

Examples

Experimental program
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Example Embodiment

[0023] DETAILED DESCRIPTION a: an apparatus according to the present embodiment, the enrichment of bacteria were used, including reaction vessel 10, and the gas generation rate detection means output 3, an air pump 5, aerator 6, 7 stirrer, a filler means 9, the end concentration measuring device 11, PLC 12 and the motor 13;

[0024] The reactor is provided with a water inlet port to add nutrients and 4, the side wall 2 is provided with an outlet 10 on the sidewalls of the lower portion of the reaction vessel upper portion of the tank 10; the signal receiving end of said gas production rate detecting means and generating 3 sensing probe and the composition, and the signal receiving terminal connected to sensing probe, the sensing probe is disposed above the reaction can 10; inside the reaction tank 10 is provided with a stirrer 7, the motor 13 is connected through a coupling 7 with a stirrer ; the lower tank 10 is provided in the reaction with substrate concentration measuring devi...

Example Embodiment

[0025] DETAILED Embodiment 2: Embodiment of the present embodiment and a particular embodiment is different: the filler means 9 is provided with a filler, and the filler is a ceramic foam, said ceramic foam with a volume ratio of 2: 1 .

[0026] The foam having a strong adhesive, can be adsorbed on the surface of the ceramic; ceramic developed pore structure, it can be inclusive of foam adhered to each other both increases friction, to facilitate the interception of red bacteria, such bacteria capable of adsorbing red and the ceramic foam surface, while reducing the influence of both the synergistic effect of aeration during agitation to form a granular sludge anammox bacteria and promote red enriched bacteria.

[0027] The other steps are the same as a specific embodiment.

Example Embodiment

[0028] DETAILED Embodiment 3: Embodiment of the present embodiment and the exemplary embodiment is one or two different points: at the outlet 2 is provided with a water filter, pore size of the membrane effluent is 0.45μm.

[0029] Other specific embodiments of a step or two identical.

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Abstract

The invention discloses a device for enriching anaerobic ammonia-oxidizing bacteria and a method for treating wastewater by using the device, and relates to the technical field of sewage treatment. The invention aims to solve the problems of long anaerobic ammonia oxidation starting time and slow growth of anaerobic ammonia oxidizing bacteria in the anaerobic ammonia oxidation technology. The method comprises the following steps that: an air pump is started, mixed wastewater is aerated through an aerator, the concentration of dissolved oxygen in the mixed wastewater is adjusted to 0.5-1.5 mg/L, and then the air pump is turned off; a PLC is used for controlling a substrate concentration measuring device to measure the concentration of organic matters in the mixed wastewater, when the proportion of nitrite ions to ammonium ions is lower than 1.1, the PLC is used for automatically controlling a nutrient substance adding port to add nutrient substances into a reaction tank, the operation is continued, and after the anaerobic ammonia oxidation reaction in the reaction tank is finished, the motor is turned off. The invention can obtain the device for enriching the anaerobic ammonia-oxidizing bacteria and the method for treating the wastewater by using the device.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a device for enriching red bacteria and a method for treating wastewater by using the device. Background technique [0002] At present, anaerobic ammonia oxidation (Anammox) technology, as a new biological nitrogen removal technology, is a research hotspot in wastewater treatment technology. This technology does not require oxygen and exogenous organic matter, and the sludge yield is low. It is a "green" process with great application potential. [0003] Although the various advantages of the anammox process are significant, there are also disadvantages. Anammox bacteria have a long doubling cycle and are sensitive to environmental conditions such as temperature, pH, dissolved oxygen, and organic matter. It is difficult to obtain enriched cultures by traditional microbiological methods. Therefore, it is of great significance to study the operating device for high-effic...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F3/30C02F3/34
CPCC02F3/006C02F3/302C02F3/301C02F3/307C02F3/34C02F2305/06C02F2209/005
Inventor 徐善文赵立军
Owner 黑龙江红菌生物科技有限公司
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