CN215712480U

CN215712480U - Microbial inoculum expands banks up device with earth

Info

Publication number: CN215712480U
Application number: CN202122260164.6U
Authority: CN
Inventors: 刘君; 岳中秋; 向伟; 朱春游; 余晗
Original assignee: Hunan Aerospace Kaitian Water Service Co ltd
Current assignee: Hunan Aerospace Kaitian Water Service Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-01
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a microbial agent expanding culture device which comprises a shell, wherein the shell is divided into a water inlet area positioned in the center, and a microbial agent adding area, a microbial growth area, a filler film-forming culture area and a homogenizing culture area which are sequentially arranged around the water inlet area by a partition plate; the water inlet area is sequentially provided with a filtering basket, an ultraviolet disinfection area and a water purifying filter material area from top to bottom, and the ultraviolet disinfection area is provided with an ultraviolet lamp tube; the top of the water inlet area is provided with a water inlet, the water inlet area, the microbial agent adding area, the microbial growth area, the filler biofilm culturing area and the homogenizing bacteria outlet area are sequentially communicated in a baffling manner from top to bottom, and the bottom of the homogenizing bacteria outlet area is provided with a water outlet. By adopting the microbial agent expanding culture device, not only can the strain expanding propagation conditions be uniformly controlled, but also the strain quality and the strain quantity can be effectively guaranteed.

Description

Microbial inoculum expands banks up device with earth

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a microbial agent expanding culture device.

Background

The phenomenon of "black and odorous" of rivers is a biochemical phenomenon, namely anaerobic decomposition of organic matters in water. Oxygen consumption of organic matters in the water body is higher than reoxygenation in the decomposition process, so that the water body is anoxic, anaerobic microorganisms propagate in a large quantity and decompose the organic matters, a large amount of odorous gas such as amines, hydrogen sulfide, ammonia and the like is generated to cause the water body to smell, and the odorous gas escapes from the water surface and enters the atmosphere to cause the surrounding of the water body to be smelly. Meanwhile, the water body is reduced by heavy metals such as iron, manganese and the like in the sediment and the water due to oxygen deficiency, and forms ferrous sulfide and the like with sulfur ions in the water to make the water body black.

The black and odorous water is mainly formed by the following reasons: (1) the organic pollution load of the water body is overlarge; mainly has point source pollution and non-point source pollution, such as industrial wastewater, domestic sewage and storm runoff. (2) Thermal pollution of water body; the urban river thermal pollution refers to high-temperature wastewater discharged to a water body by factories on two banks of a river, the reproduction of actinomycetes reaches the highest at about 25 ℃, and the black and odorous taste of the river also reaches the maximum. (3) Heavy metal contamination; heavy metal pollution is also one of the urban river pollution types, and the contribution of heavy metal pollution to the black and odorous river is mainly the content of iron and manganese in the water body. (4) Resuspension of bottom sludge and bottom materials; river pollution is characterized in that not only the water quality is seriously polluted, but also bottom mud is one of the main causes of various pollutions in the water body, the pollution is also serious, and the bottom mud can cause secondary pollution to the river. Under a series of actions such as physics, chemistry and biology, pollutants adsorbed on bottom mud particles exchange with pore water, so that pollutants are released into rivers, the content of organic pollutants in water is increased, and the rivers are black and smelly. Under proper environmental conditions, mass propagation of actinomycetes in the bottom mud is a large factor causing the black and odorous river.

The 'water pollution prevention and control action plan' of China is proposed for treating black and odorous water bodies: by 2020, black and odorous water bodies in the built-up areas of the cities on the land level and above in China are controlled within 10 percent; by 2030, black and odorous water in the built-up areas of the city is totally eliminated. The black and odorous water body in the urban area not only brings very poor sense to the masses, but also directly influences the outstanding water environment problem of the lives of the masses. It is urgent to identify the cause and take effective treatment measures to eliminate the black and odor. Research shows that only less than 1% of pollutants entering rivers and lakes can be dissolved in water, and more than 99% of pollutants can be deposited in bottom mud of the rivers and lakes. Therefore, a large amount of oxygen-consuming substances, hardly degradable organic pollutants, N, P nutritive salts and the like are deposited in the bottom sludge and slowly and durably released to the water body and aquatic organisms, so that secondary pollution to the water body is caused, and the aquatic ecological environment and human health are seriously threatened. Therefore, the pollution problem of rivers and lakes is solved fundamentally, and not only the pollution source is cut off from the source, but also the black and odorous water body is repaired more importantly. The existing black and odorous water body restoration method mainly comprises an ex-situ treatment technology and an in-situ treatment technology. Compared with the ex-situ remediation technology, the in-situ control technology has the advantages of small investment, easy operation, difficult generation of secondary pollution and the like, but because the method is single, the treatment capacity is small, the purification efficiency of the sewage is low, the purification treatment of the water body with larger volume is difficult to realize, the installation operation and the later maintenance are also inconvenient, the addition of the medicament and the strains is convenient, although the effect is quick, the medicament cost is high, and the secondary pollution is possibly generated. Therefore, in order to solve the pollution problem of black and odorous water, it is necessary to effectively reduce turbidity, increase indexes such as dissolved oxygen and oxidation-reduction potential, and control main pollutants such as chemical oxygen demand, nitrogen and phosphorus in water and bottom mud. In order to solve the problems currently encountered, many researchers have conducted a great deal of research on in-situ and ex-situ remediation techniques of black and odorous water bodies. Chinese patent CN108483676A discloses a black and odorous water treatment device, which comprises a container main body, a horizontal rotating shaft and a plurality of pressing plates, wherein the pressing plates are movably sleeved on the horizontal rotating shaft and can synchronously rotate along with the horizontal rotating shaft; wherein, a flexible component which can be expanded or contracted is fixedly arranged between two adjacent press plates. Aerobic bacteria and anaerobic denitrifying bacteria can be allowed to multiply in large numbers on the flexible member. The equipment belongs to an ectopic treatment device, and can effectively remove the surplus nutrition in the black and odorous water body; but the ectopic treatment has large energy consumption, the biological treatment mainly removes the nutrient substances in the water body, and the actinomycetes, the refractory substances and the pollutants released in the subsequent bottom mud in the water body can not be effectively removed. Chinese patent CN107673561A discloses an in-situ treatment system for black and odorous water and a method for treating black and odorous water by using the same. The black and odorous water in-situ treatment system comprises a pretreatment area, an in-situ treatment area and a separation area; the water flow baffling is increased by reforming a certain river reach in the river channel, so that the retention time of the water body in a unit area is increased, and the surrounding land is basically not occupied. The method mainly adopts a biological method and adopts a physical and chemical method as an auxiliary method to carry out in-situ remediation, and finally achieves the purpose of improving the water quality of the black and odorous water body. Although the system has high treatment capacity, good treatment effect and low energy consumption, the Fenton reagent and the coagulation reagent need to be added, the reagent addition causes secondary pollution, and the reagent addition is inconvenient. Chinese patent CN108840532A provides a black and odorous water body processing apparatus, nitrogen phosphorus recovery principle among the full play prior art sets up the aeration blow-off case and carries out reoxygenation and denitrogenation synchronous processing to the black and odorous water body, combines good oxygen, anaerobism and membrane treatment process, carries out denitrogenation dephosphorization to the black and odorous water body and handles, has still realized synchronous desorption and recovery effect to the ammonia nitrogen simultaneously, has reduced the influence of black and odorous water body to all ring edge borders, has certain economic value. However, the process flow is long, and belongs to ex-situ treatment, and the similar problems exist. Chinese patent CN109133490A discloses a black and odorous water body treatment device, including the water purification case, gear motor, commentaries on classics roller are installed on the right side of water purification case, change the outside of roller and install the flabellum, change the outer wall left side of roller and install the circle cover, the outer wall of circle cover is equipped with the pompon, the pompon is installed to the bottom of pull rod. This device is administered to black and odorous water body pushes down pull rod and barrier plate downstream under the elastic pushing force effect through compression spring, makes the liquid medicine flow out, and then makes the liquid medicine carry out intermittent type nature outflow and stops flowing out, makes the flabellum evenly fuse into black and odorous water with the liquid medicine when rotating in, the device belongs to automatic reagent feeding device.

The above patent devices have various advantages and disadvantages, the pollution degree of many rivers and lakes in China is relatively serious at present, the types of pollutants are complex, and with the vigorous promotion of ecological civilization construction, people put forward new requirements on the treatment of the rivers and lakes, and the microbial agent remediation technology is the most environment-friendly and the most effective measure. The expanded culture of microbial strains is the first step of fermentation production, and not only can the number of strains be increased, but also strains with high quality can be cultured through the expanded culture, but no device aiming at simple and easy expanded propagation of the microbial strains exists in the market at present. In order to solve the defects that the number of bacterial colonies is limited after the stock culture is expanded, the effective viable bacteria rate is limited and the dosing can not be regularly and quantitatively carried out in the prior art, the microbial expanding culture dosing device which can uniformly control the strain expanding propagation condition, effectively ensure the strain quality and automatically dose is provided.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide the microbial agent expanding culture device which can uniformly control the strain expanding propagation conditions and effectively ensure the strain quality and the strain quantity.

The utility model solves the problems through the following technical means:

a microbial agent expanding culture device comprises a shell, wherein the shell is divided into a water inlet area in the center, and a microbial agent adding area, a microbial growth area, a filler film-forming culture area and a homogenizing culture area which are sequentially arranged around the water inlet area by a partition plate; the water inlet area is sequentially provided with a filtering basket, an ultraviolet disinfection area and a water purifying filter material area from top to bottom, and the ultraviolet disinfection area is provided with an ultraviolet lamp tube; the top of the water inlet area is provided with a water inlet, the water inlet area, the microbial agent adding area, the microbial growth area, the filler biofilm culturing area and the homogenizing bacteria outlet area are sequentially communicated in a baffling manner from top to bottom, and the bottom of the homogenizing bacteria outlet area is provided with a water outlet.

Further, aeration structures are arranged at the bottoms of the water inlet area, the microbial agent adding area, the microbial growth area, the filler biofilm culturing area and the homogenizing bacteria outlet area.

Further, the filler biofilm culturing area comprises a first-level filler biofilm culturing area, a second-level filler biofilm culturing area and a third-level filler biofilm culturing area, and the first-level filler biofilm culturing area, the second-level filler biofilm culturing area and the third-level filler biofilm culturing area are sequentially communicated in a baffling manner from top to bottom.

Further, the water inlet is arranged at the top of the side wall of the water inlet area, the water outlet is arranged at the bottom of the side wall of the homogeneous bacterium outlet area, and an overflow valve is arranged at the water outlet.

Furthermore, a primary overflow hole is arranged between the water inlet area and the top of the microorganism growth area, and the primary overflow hole is higher than the water inlet.

Furthermore, a secondary overflow hole is arranged between the water inlet area and the top of the secondary filler biofilm culturing area, and the secondary overflow hole is also higher than the water inlet.

Further, the primary overflow hole is lower than the secondary overflow hole.

Compared with the prior art, the utility model has the beneficial effects that:

according to the microbial agent expanding culture device, on one hand, river water can be directly extracted for expanding culture of microbial strains, the river water is fully purified under the combined action of the ultraviolet lamp tube and the purification filter material, meanwhile, nutrients in the sewage are utilized, no nutrients need to be added, the water purification filter material can form a colony house, and the expanding culture rate and the quality of the microbial strains are improved; on the other hand, by arranging the microorganism growth area and the filler biofilm culturing area, the bacterial liquid flows back and flows through the areas, thereby not only providing an environment for the growth of the strains, but also ensuring the growth duration of the strains and further improving the expanding culture rate and the quality of the microorganism strains. In addition, the water inlet area is provided with two overflow holes at a position higher than the water inlet, so that when the strain demand is large (the sewage treatment demand is large), the water inlet can enter a microorganism growth area and a filler biofilm culturing area through the overflow holes, and the nutrition demand of strain expanding culture is met. And finally, an overflow valve is arranged at the water outlet, and when the water level of the homogenized bacteria outlet area reaches a safe high water level, the overflow valve is opened to automatically add the drugs (add the sewage treatment strains) to the river channel (the sewage area to be treated).

Drawings

The utility model is further described below with reference to the figures and examples.

FIG. 1 is a top view of the overall structure of the present invention;

FIG. 2 is an internal layout view of the water intake zone;

in the figure: 1- -water intake zone; 2- -microbial inoculum addition zone; 3- -microbial growth zone; 4- -first class filler biofilm culturing area; 5- -two-stage filling biofilm culturing area; 6-three-level packing biofilm culturing area; 7- -homogenizing out the bacterial area; 8- -filtering basket; 9-ultraviolet lamp tube; 10- -water purification filtering material area; 11- -aeration configuration.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the present embodiment discloses a microbial inoculum expansion culture device, which includes a housing, the housing is divided into a central water inlet area 1, and a microbial inoculum adding area 2, a microbial growth area 3, a filler biofilm culturing area and a homogenized bacteria outlet area 7, which are sequentially arranged around the water inlet area, by a partition plate, and the filler biofilm culturing area includes a first-stage filler biofilm culturing area 4, a second-stage filler biofilm culturing area 5 and a third-stage filler biofilm culturing area 6.

The water inlet area is sequentially provided with a filtering basket 8, an ultraviolet disinfection area and a water purification filter material area 10 from top to bottom, and the ultraviolet disinfection area is provided with an ultraviolet lamp tube 9; the filter basket can be lifted by a lifting mechanism.

The top in district 1 of intaking is provided with the water inlet, the bottom in homogeneity goes out fungus district 7 is provided with the delivery port, specifically, the water inlet sets up the lateral wall top in district 1 of intaking, the delivery port sets up the lateral wall bottom in homogeneity goes out fungus district 7, delivery port department is provided with the overflow valve. The water inlet is in butt joint with the water inlet pipe, and the water outlet is in butt joint with the water outlet pipe. When the water level of the homogenized bacterium outlet area reaches a safe high water level, the overflow valve is opened to automatically add the medicine (add the sewage treatment strains) to the river channel (the sewage area to be treated).

The water inlet area 1, the microbial agent adding area 2, the microbial growth area 3, the first-stage filler biofilm culturing area 4, the second-stage filler biofilm culturing area 5, the third-stage filler biofilm culturing area 6 and the homogenizing bacteria outlet area 7 are sequentially communicated in a baffling manner from top to bottom. One embodiment is: the water inlet area 1 is communicated with the microbial agent adding area 2 at the bottom, the microbial agent adding area 2 is communicated with the microbial growth area 3 at the top, the microbial growth area 3 is communicated with the primary filler biofilm culturing area 4 at the bottom, the primary filler biofilm culturing area 4 is communicated with the secondary filler biofilm culturing area 5 at the top, the secondary filler biofilm culturing area 5 is communicated with the tertiary filler biofilm culturing area 6 at the bottom, and the tertiary filler biofilm culturing area 6 is communicated with the homogenized bacteria outlet area 7 at the top.

The bottom parts of the water inlet area 1, the microbial agent adding area 2, the microbial growth area 3, the filler film-forming culture area and the homogenizing bacteria outlet area 7 are all provided with aeration structures 11 which are aeration pipes or aeration discs.

A primary overflow hole is arranged between the water inlet area and the top of the microorganism growth area, and the primary overflow hole is higher than the water inlet; and a secondary overflow hole is arranged between the water inlet area and the top of the secondary filler biofilm culturing area, and the secondary overflow hole is also higher than the water inlet. When the strain quantity demand is large (the sewage treatment demand is large), the water inlet can enter a microorganism growth area and a filler biofilm culturing area through the overflow hole, so that the nutrient demand of strain propagation is met. Preferably, the primary overflow aperture is lower than the secondary overflow aperture. During overflow, external water is enabled to preferentially overflow into the microorganism growth area.

During operation, water is taken in situ and enters the water inlet area, the water is filtered by the liftable filtering lifting basket, then enters the water purifying and filtering area after passing through the ultraviolet disinfection area, sewage is further purified by the filtering material in the water purifying and filtering area and then enters the bottom of the water inlet area, the bottom of the water inlet area is communicated with the microbial agent adding area, the water is expanded and cultured through aeration, certain nutrient substances are provided for the expanding and culturing, no additional nutrient substances are needed, a colony house can be formed in the water purifying and filtering area, and the expanding and culturing can be continued. Then the bacterial liquid turns back up and down and flows through the microbial growth area and the filler biofilm culturing area in turn for further culture, thereby greatly improving the effective viable bacteria rate of the microbial colony. The expanded bacteria liquid flows into a homogeneous bacteria outlet area and is guided into a sewage area to be treated according to requirements for sewage treatment.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A microbial inoculum expands banks up device with earth, its characterized in that: the device comprises a shell, wherein the shell is divided into a water inlet area in the center and a microbial agent adding area, a microbial growth area, a filler film-forming culture area and a homogenizing culture area which are sequentially arranged around the water inlet area by a partition plate; the water inlet area is sequentially provided with a filtering basket, an ultraviolet disinfection area and a water purifying filter material area from top to bottom, and the ultraviolet disinfection area is provided with an ultraviolet lamp tube; the top of the water inlet area is provided with a water inlet, the water inlet area, the microbial agent adding area, the microbial growth area, the filler biofilm culturing area and the homogenizing bacteria outlet area are sequentially communicated in a baffling manner from top to bottom, and the bottom of the homogenizing bacteria outlet area is provided with a water outlet.

2. The microbial inoculant propagation device according to claim 1, wherein: and aeration structures are arranged at the bottoms of the water inlet area, the microbial agent adding area, the microbial growth area, the filler film-forming culture area and the homogenized bacterium outlet area.

3. The microbial inoculant propagation device according to claim 2, wherein: the filler biofilm culturing area comprises a first-stage filler biofilm culturing area, a second-stage filler biofilm culturing area and a third-stage filler biofilm culturing area, and the first-stage filler biofilm culturing area, the second-stage filler biofilm culturing area and the third-stage filler biofilm culturing area are sequentially communicated in a baffling manner from top to bottom.

4. The microbial inoculant propagation device of claim 3, wherein: the water inlet is arranged at the top of the side wall of the water inlet area, the water outlet is arranged at the bottom of the side wall of the homogeneous bacterium outlet area, and the overflow valve is arranged at the water outlet.

5. The microbial inoculant propagation device of claim 4, wherein: a first-level overflow hole is arranged between the water inlet area and the top of the microorganism growth area, and the first-level overflow hole is higher than the water inlet.

6. The microbial inoculant propagation device of claim 5, wherein: and a secondary overflow hole is arranged between the water inlet area and the top of the secondary filler biofilm culturing area, and the secondary overflow hole is also higher than the water inlet.

7. The microbial inoculant propagation device of claim 6, wherein: the primary overflow hole is lower than the secondary overflow hole.