Composite high-efficiency microorganism preparation for synergy of sewage treatment plant and synergistic process

A high-efficiency microorganism, sewage treatment plant technology, applied in biological water/sewage treatment, microorganism-based methods, water/sludge/sewage treatment, etc. New requirements for biological treatment, failure to achieve the best treatment effect, etc., to achieve good sewage treatment effect, good adaptability and degradation effect, and the effect of improving biodegradability and treatment efficiency

Active Publication Date: 2010-12-22
北京三泰正方生物环境科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, sewage biological treatment generally adopts natural sludge to cultivate domesticated microorganisms. Although the technology is mature, it has insurmountable shortcomings, mainly reflected in: poor adaptability, toxic and harmful substances and high salt content in sewage will inhibit the growth of microorganisms and even cause Inactivation of microorganisms, it is difficult to treat most industrial sewage, especially high-concentration refractory organic sewage and high-ammonia nitrogen sewage; the cultivation cycle is long, microorganisms are easily inactivated during the maintenance of sewage plants, sludge bulking occurs, and sewage treatment plants must be restarted when the sewage treatment plant is in operation again. Cultivation; less biomass, poor degradation ability, low treatment efficiency, difficult to effectively and completely degrade macromolecules, refractory, toxic and harmful organic substances, nitrogen, phosphorus, etc., unst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: The present invention is implemented in a sewage treatment plant with an effective volume of biochemical pools of 360 cubic meters.

[0043] The daily water treatment capacity of the sewage treatment plant is 480m 3 / d, the treatment process is A / O, the effective volume of the biochemical pool is 360 cubic meters, the hydraulic retention time is 18 hours, the average value of influent COD is about 4000mg / L, and the average value of influent ammonia nitrogen is about 180mg / L. Specific steps are as follows:

[0044] 1. Bacterial cultivation: Carry out seed expansion cultivation of Motulinum, Comamonas, Bacillus, Pseudomonas, Alcaligenes and Nocardia respectively, to obtain the bacterium liquid of expansion cultivation, the weight is the cultivation Based on 5-10% of the expanded cultured bacterial liquid, they are respectively connected to the culture medium of the fermenter for separate fermentation culture. The fermentation temperature is kept at 30-40°C,...

Embodiment 2

[0055] Embodiment 2: The present invention is implemented in a sewage treatment plant with an effective volume of biochemical pools of 5,400 cubic meters.

[0056] The daily water treatment volume of the sewage treatment plant is 2880m 3 / d, the biochemical treatment process is UASB+SBR, the effective volume of the biochemical pool is 5400 cubic meters, the hydraulic retention time is 45 hours, the average value of UASB influent COD is about 8000mg / L, and the average value of influent ammonia nitrogen is about 300mg / L. Specific steps are as follows:

[0057] 1. Cultivation of bacteria: Carry out seed expansion culture of Kinetoglobulina, Comamonas, Bacillus, Pseudomonas, Alcaligenes and Nocardia isolated from activated sludge respectively, and obtain the expanded cultured bacteria Bacterial solution, the weight of 5-10% of the culture medium of the expanded culture is respectively connected to the culture medium of the fermenter for separate fermentation and culture, the ferm...

Embodiment 3

[0068] Embodiment 3: The present invention is implemented in a sewage treatment plant with an effective volume of biochemical pools of 9000 cubic meters.

[0069] The daily water treatment capacity of the sewage treatment plant is 3600m 3 / d, the treatment process is anaerobic filter + contact oxidation, the effective volume of the biochemical pool is 9000 cubic meters, the hydraulic retention time is 60 hours, the average COD of the influent is 3500mg / L, and the average value of ammonia nitrogen in the influent is about 240mg / L. Specific steps are as follows:

[0070] 1. Cultivation of bacteria: Carry out seed expansion culture respectively from Animoglia, Comamonas, Bacillus, Pseudomonas, Alcaligenes and Nocardia to obtain the expanded cultured bacterium liquid, and expand the cultured The bacterium solution is inserted into the culture medium of the fermenter according to 5-10% to carry out separate fermentation culture. The fermentation temperature is maintained at 30-40...

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Abstract

The invention discloses a composite high-efficiency microorganism preparation for synergy of a sewage treatment plant and a synergistic process. Active ingredients of the composite high-efficiency microorganism preparation comprise zoogloea, comamonas, bacillus, pseudomonas, alcaligenes and nocardia. A method for preparing the composite high-efficiency microorganism preparation comprises the following steps of: independently cultivating the zoogloea, the comamonas, the bacillus, the pseudomonas, the alcaligenes and the nocardia in culture media respectively to obtain a zoogloea culture, a comamonas culture, a bacillus culture, a pseudomonas culture, an alcaligenes culture and a nocardia culture; and mixing the cultures. When the composite high-efficiency microorganism preparation is applied to the synergy of the sewage treatment plant, the composite high-efficiency microorganism preparation is added into a biochemical tank of the sewage treatment plant after expanding culture and acclimatization, so the biomass and activity are improved, treatment capacity and treatment effect of a sewage treatment system are improved, and standard emission and stable operation of the system can be guaranteed.

Description

technical field [0001] The invention relates to a composite high-efficiency microbial preparation and a synergistic process for efficiency enhancement of sewage treatment plants. Background technique [0002] Biological sewage treatment technology has become the leading technology in the field of sewage treatment. As an economical, reasonable and effective sewage treatment technology, it plays an important role in improving the quality of water environment and preventing water pollution. [0003] The biological treatment of sewage is to use the metabolism of microorganisms to decompose and transform the pollutants in sewage to achieve the purpose of purifying water quality. [0004] The core of sewage biological treatment is to cultivate and domesticate the dominant microbial flora suitable for the characteristics of sewage, and maintain the microbial biomass and activity suitable for the concentration of sewage pollutants, so that the dominant microbial flora can be treated...

Claims

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Application Information

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IPC IPC(8): C12N1/00C12N1/20C02F3/34C12R1/01C12R1/07C12R1/38C12R1/05
Inventor 李沧海付建军黄海魏雪松
Owner 北京三泰正方生物环境科技发展有限公司
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