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Mixed strain, strain vector and method capable of continuously degrading anion surfactant in black and odorous water in rivers

A technology of surfactants and mixed strains, applied in the direction of microorganism-based methods, chemical instruments and methods, biochemical equipment and methods, etc., can solve the problems of inability to remove, difficult to remove nitrogen, increase upstream water supply, etc., to achieve Reduced waste and shortened lifespan

Inactive Publication Date: 2018-01-23
钟华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] 1. The disadvantage of direct aeration by aeration pump is that it consumes a lot of energy, and in the early stage of aeration, there will be a lot of odor emitted, which will affect the normal life of surrounding residents. Citizens have great opinions
Continuous aeration is required 24 hours a day, and the cost of electricity is high
[0023] 2. To increase water replenishment upstream, the disadvantage is that when the river ebbs, the replenished water will flow away
[0025] 4. Planting aquatic plants in the river will affect the original function of the river, and it is easy to breed mosquitoes, and the plants themselves will rot after death and cause secondary pollution.
[0026] 5. Microbial technology can reduce the black and odor of rivers, but it does not last long
There are also many problems with the use of microbial agents, such as dealing with eutrophication, and the removal of phosphorus by microorganisms is very complicated, and cannot be removed in river courses; nitrogen removal is also difficult

Method used

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  • Mixed strain, strain vector and method capable of continuously degrading anion surfactant in black and odorous water in rivers
  • Mixed strain, strain vector and method capable of continuously degrading anion surfactant in black and odorous water in rivers
  • Mixed strain, strain vector and method capable of continuously degrading anion surfactant in black and odorous water in rivers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] 1) Take 30 parts by weight of plant-derived medium and add it to 100 parts of purified water, and then add 3 parts of anaerobic microorganisms (animal-derived anaerobic microorganisms required to form mixed strains), mix well, and seal at a constant temperature of 35°C Fermentation for 24 hours; 2) Add another 30 parts of plant-derived medium and 3 parts of aerobic microorganisms, stir well, and ferment at 30°C for 12 hours, with aeration and oxygenation every 15 minutes; 3) Ferment at 25°C for 8 hours , Oxygen and aeration once every 30 minutes; 4) natural fermentation for 12 hours, oxygen and aeration once every 120 minutes, adding short-chain fatty acids.

Embodiment 2

[0118] 1) Take 35 parts by weight of plant-derived culture medium and add it to 100 parts of purified water, and then add 7 parts of anaerobic microorganisms (animal-derived anaerobic microorganisms required to form mixed strains), stir evenly, and seal at a constant temperature of 35°C Fermentation for 32 hours; 2) Add 35 parts of plant-derived medium and 7 parts of aerobic microorganisms, stir evenly, ferment at 30°C for 18 hours, and aerate once every 20 minutes; 3) Ferment at 25°C for 10 hours , Oxygen and aeration once every 45 minutes; 4) natural fermentation for 18 hours, oxygen and aeration once every 180 minutes, adding short-chain fatty acids.

Embodiment 3

[0120] 1) Take 40 parts by weight of plant-derived culture medium and add it to 100 parts of purified water, then add 10 parts of anaerobic microorganisms (animal-derived anaerobic microorganisms required to form mixed strains), mix well, and seal at a constant temperature of 35°C Fermentation for 48 hours; 2) Add 40 parts of plant-derived medium and 10 parts of aerobic microorganisms, stir evenly, and ferment for 24 hours at a constant temperature of 30°C, with aeration and aeration once every 30 minutes; 3) Fermentation at a constant temperature of 25°C for 12 hours , Oxygen and aeration once every 60 minutes; 4) natural fermentation for 24 hours, oxygen and aeration once every 240 minutes, adding short-chain fatty acids.

[0121] The characteristics of the plant-derived microorganisms obtained in Examples 1-3 are as follows: Effective reproduction ratio: 5×10 9 , 20 billion / g; traits: 1, powder (gray), soluble; 2, fineness: 160 mesh; pH value is 2-5.5;

[0122] Environmental ada...

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Abstract

The invention discloses a mixed strain, strain vector and method capable of continuously degrading anion surfactant in black and odorous water in rivers. The mixed strain consists of the following microorganisms: bacillus subtilis, bacillus licheniformis, EM bacteria, streptococcus faecalis, lactobacillus, lactobacillus plantarum, lactobacillus acidophilus, bacillus polymyxa, bacillus coagulans, and bacillus pumilus; and moreover, all microorganisms contained in the mixed strain are domesticated into plant-sourced microorganisms, and the mixed strain is mixed with short-chain fatty acid. By adopting the synergism of various means, the anion surfactant contained in the black and odor water in the rivers can be effectively treated.

Description

Technical field [0001] The invention relates to the technical field of river black and smelly water treatment, in particular to a mixed strain, strain carrier and method for sustainable degradation of anionic surfactant in the black and smelly water body. Background technique [0002] Black odor is an extreme phenomenon of organic pollution in water bodies, which is caused by water lack of oxygen and organic matter corruption. The direct cause of the black and odor of water is caused by insufficient DO dissolved oxygen, and the discharge of pollutants is the root cause of the black and odor of water. The phenomenon of river black and smell is actually a kind of biochemical phenomenon, the anaerobic decomposition of organic matter in water. It is believed that the organic matter in the water body consumes more oxygen than reoxygenation during the decomposition process, resulting in an anoxic environment. Anaerobic microorganisms decompose the organic matter to produce a large amo...

Claims

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Application Information

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IPC IPC(8): C12N1/20C02F3/30C02F3/34C08L75/04C08K13/04C08K3/08C08K3/04C08K3/34C08K7/06C12R1/125C12R1/10C12R1/01C12R1/46C12R1/25C12R1/23C12R1/12C12R1/07
Inventor 钟华
Owner 钟华
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