Denitrification strain cultivation multi-effect constant-temperature equipment for biological enhancement treatment of wastewater

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly discloses denitrifying strain cultivation multi-effect constant temperature equipment for wastewater biological enhancement treatment, which comprises a culture medium mixing tank, a fermentation treatment tank and a denitrifying bacteria storage tank, the side edge of the culture medium mixing tank is connected with a water supply pipe I, the upper side of the denitrifying bacteria storage tank is connected with an oxygen supply pipe, and the upper side of the fermentation treatment tank is connected with a water supply pipe II. A second oxygen supply branch pipe is connected to a pipeline of the oxygen supply pipe, the second oxygen supply branch pipe is communicated with the fermentation treatment tank, a culture medium supply pipe is connected between the culture medium mixing tank and the fermentation treatment tank, and a supply suction pump is arranged on a pipeline of the culture medium supply pipe. The jacket type structure, the hot water outlet pipe and the cold water inlet pipe are matched for use to cool the fermentation treatment tank, so that heat released when carbohydrate, fat and protein in the fermentation process are decomposed into CO2, NH3, water and other substances by microorganisms is taken away, and heat such as friction and generated heat caused by mechanical movement of fermentation liquor driven by stirring is taken away.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely is a kind of for wastewater biological reinforcement processing's denitrifying bacteria cultivation multi-effect thermostatic equipment. BACKGROUND

[0002] The total nitrogen of several kinds of effluent water of some power plant advanced treatment system is 30-50mg / L, ammonia nitrogen is less than 0.5mg / L, total phosphorus is 0.3-0.5mg / L, COD is less than 50mg / L, carbon-nitrogen-phosphorus ratio is completely unbalanced, and carbon content is seriously insufficient;At the same time, in order to prevent scale blocking, scale inhibitor, corrosion inhibitor, bactericide and other stabilizers need to be added in the water treatment operation of each unit of boiler feed water double membrane system and circulating water system, and different types of water quality stabilizers also cause the complexity of organic components in the effluent water, poor biodegradability and water quality fluctuation.Circulating water sewage has the characteristics of high salt content, high hardness, high suspended solids, high colloidal organic matter and complex water quality.

[0003] Due to the complexity of water quality, the biochemical treatment effect of the wastewater is poor, and the denitrification capacity of the anoxic denitrification tank of the sewage station is usually insufficient, which leads to low total nitrogen removal efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of for wastewater biological reinforcement processing's denitrifying bacteria cultivation multi-effect thermostatic equipment to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of for wastewater biological reinforcement processing's denitrifying bacteria cultivation multi-effect thermostatic equipment, comprising:

[0006] Culture medium mixing tank, fermentation treatment tank, denitrifying bacteria storage tank;

[0007] Among them, the side of culture medium mixing tank is connected with water supply pipe one, the upper side of denitrifying bacteria storage tank is connected with feeding branch pipe one, the upper end of feeding branch pipe one is connected with oxygen supply pipe, the pipeline of oxygen supply pipe is connected with oxygen supply branch pipe two, and oxygen supply branch pipe two is communicated with fermentation treatment tank;

[0008] Culture medium supply pipe is connected between culture medium mixing tank and fermentation treatment tank, and supply pump is arranged on the pipeline of culture medium supply pipe;Bacterium supply pipe is connected between fermentation treatment tank and denitrifying bacteria storage tank, and bacterium pump is arranged on the pipeline of bacterium supply pipe;Bacterium supply pipe extends to the inside lower side of denitrifying bacteria storage tank;

[0009] The jacketed structure is formed in the side wall of the fermentation treatment tank, and a cold water inlet pipe and a hot water outlet pipe are connected to the outer wall of the fermentation treatment tank and communicate with the jacketed structure.

[0010] Preferably, the lower surfaces of the culture medium mixing tank, the fermentation treatment tank and the denitrifying bacteria storage tank are connected with slag discharge pipes, and slag discharge valves are arranged on the pipelines of the slag discharge pipes.

[0011] Preferably, the culture medium mixing tank, the fermentation treatment tank and the denitrifying bacteria storage tank each comprise a hollow tank body with an open upper portion and a tank cover arranged at the open upper portion of the tank body.

[0012] Preferably, an air blower is arranged at the end of the oxygen supply pipe, and an air fine filter is arranged at the end of the oxygen supply pipe close to the air blower.

[0013] Preferably, air path valves are arranged on the pipelines of the oxygen supply branch pipe II, the oxygen supply branch pipe I and the oxygen supply pipe.

[0014] Preferably, a dispersion disc is connected to one end of the oxygen supply pipe in the denitrifying bacteria storage tank, the dispersion disc is a hollow disc, and air outlet holes are uniformly arranged on the lower surface of the dispersion disc.

[0015] Preferably, drive motors are arranged on the upper surfaces of the culture medium mixing tank and the fermentation treatment tank, output shafts of the drive motors are connected with stirring paddles, the stirring paddles are arranged in the culture medium mixing tank and the fermentation treatment tank, and auxiliary stirring rods are arranged on the inner walls of the culture medium mixing tank and the fermentation treatment tank.

[0016] Compared with the prior art, the culture medium mixing tank, the fermentation treatment tank and the denitrifying bacteria storage tank have the following beneficial effects:

[0017] The oxygen supply and water supply can reduce the use of manpower, the culture medium can be directly output from the culture medium mixing tank to the fermentation treatment tank, the bacterial agent can be output from the denitrifying bacteria storage tank to the fermentation treatment tank, and the overall efficiency is high.

[0018] Based on the water-based culture medium mixing and bacterial agent culture, the pump suction mode is adopted to facilitate the mixing of the culture medium and the bacterial agent.

[0019] The jacketed structure, the hot water outlet pipe and the cold water inlet pipe are used in cooperation to cool the fermentation treatment tank, so that the heat released when carbohydrates, fats and proteins in the fermentation process are decomposed by microorganisms, the heat generated by the mechanical movement of the fermentation liquid driven by stirring, the heat generated by friction and other heat are taken away. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structure schematic view of the present application;

[0021] Fig. 2 It is a structure schematic view of the present application;

[0022] Fig. 3 It is a structure schematic view of the present application.

[0023] In the figure: 1, culture medium mixing tank; 2, fermentation treatment tank; 3, denitrifying bacteria storage tank; 4, residue discharge pipe; 5, residue discharge valve; 6, culture medium supply pipe; 7, supply suction pump; 8, driving motor; 9, stirring paddle; 10, auxiliary stirring rod; 11, jacket structure; 12, hot water outlet pipe; 13, cold water inlet pipe; 14, temperature detector; 15, oxygen supply pipe; 16, air blower; 17, oxygen supply branch pipe two; 18, air path valve; 19, bacteria agent supply pipe; 20, bacteria agent suction pump; 21, dispersion disc; 22, water supply pipe one; 23, nutrient supply branch pipe one; 24, air fine filter. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] Embodiment one: please refer to Figs. 1-3 The present application provides a technical solution: a denitrifying bacteria cultivation multi-effect constant temperature equipment for wastewater biological strengthening treatment, comprising: a culture medium mixing tank 1, a fermentation treatment tank 2, and a denitrifying bacteria storage tank 3.

[0027] The side of the culture medium mixing tank 1 is connected with a water supply pipe one 22, the upper side of the denitrifying bacteria storage tank 3 is connected with a nourishing branch pipe one 23, the upper end of the nourishing branch pipe one 23 is connected with an oxygen supply pipe 15, the pipeline of the oxygen supply pipe 15 is connected with an oxygen supply branch pipe two 17, the oxygen supply branch pipe two 17 communicates with the fermentation treatment tank 2; the culture medium mixing tank 1 and the fermentation treatment tank 2 are connected with a culture medium supply pipe 6, the pipeline of the culture medium supply pipe 6 is provided with a supply suction pump 7, the fermentation treatment tank 2 and the denitrifying bacteria storage tank 3 are connected with a bacteria agent supply pipe 19, the pipeline of the bacteria agent supply pipe 19 is provided with a bacteria agent suction pump 20, the bacteria agent supply pipe 19 extends to the inside lower side of the denitrifying bacteria storage tank 3; the side wall of the fermentation treatment tank 2 is formed with a jacket type structure 11, and the outer wall of the fermentation treatment tank 2 is connected with a cold water inlet pipe 13 and a hot water outlet pipe 12, the cold water inlet pipe 13 and the hot water outlet pipe 12 communicate with the jacket type structure 11, the fermentation treatment tank 2 is installed with a temperature detector 14, the detection head of the temperature detector 14 extends to the inside of the fermentation treatment tank 2.

[0028] The above content is analyzed: in use, for the case of needing to treat sewage, such as the characteristics of carbon-poor high-salt wastewater, the corresponding high-efficiency denitrifying bacteria for treating wastewater is screened. Here, heterotrophic nitrifying and aerobic denitrifying bacteria are used. The traditional denitrifying bacteria refers to the bacteria that reduce nitrate to nitrite under the condition of insufficient oxygen, and further reduce nitrite to nitrate and free nitrogen; there are more than 50 known species of denitrifying bacteria, and the common denitrifying bacteria in wastewater treatment are Pseudomonas and Alcaligenes. In recent years, the theory of nitrification and denitrification has made new important discoveries, and a class of heterotrophic nitrifying and aerobic denitrifying bacteria has been found, that is, many heterotrophic bacteria can also complete the nitrification process of organic nitrogen and inorganic nitrogen (ammonia nitrogen), and the heterotrophic nitrifying bacteria can also perform aerobic denitrification, so they can directly convert ammonia nitrogen into gaseous end products under aerobic conditions. The denitrifying bacteria agent is a strain of denitrifying bacteria artificially purified and extracted, and the denitrifying bacteria strain is a single strain, which is a heterotrophic microbial agent prepared by fermentation culture, and belongs to an artificially purified and strengthened product.

[0029] Here, liquid fermentation is selected: the activated bacteria are first stored in the denitrifying bacteria storage tank 3, and the culture medium in the culture medium mixing tank 1 is pumped out and output to the fermentation treatment tank 2 through the supply suction pump 7.

[0030] Then, the activated bacteria in the denitrifying bacteria storage tank 3 are inoculated into the culture medium in the fermentation treatment tank 2 (the activated bacteria in the denitrifying bacteria storage tank 3 are stored in liquid, and are output to the denitrifying bacteria storage tank 3 by the bacteria agent suction pump 20, if it is not liquid culture, it can be inoculated by the existing inoculation method), and the method of liquid culture is used. The fermentation treatment tank 2 is cultured, filtered, concentrated and dried to obtain the bacteria agent.

[0031] During the culture process, the oxygen supply pipe 15 and the oxygen supply branch pipe two 17 provide the required oxygen (air) for the denitrifying bacteria storage tank 3 and the fermentation treatment tank 2.

[0032] The cold water inlet pipe 13 inputs cold water into the jacketed structure 11 to absorb heat in the fermentation treatment tank 2, and the hot water outlet pipe 12 outputs hot water absorbing heat, according to the requirement of use, if the fermentation treatment tank 2 needs to be heated, hot water can be input into the jacketed structure 11 in a reverse input mode, and the environment in the fermentation treatment tank 2 is heated by the hot water.

[0033] Example two: please refer to Figs. 1-3 The utility model provides a technical scheme based on example one: the lower surface of the culture medium mixing tank 1, the fermentation treatment tank 2 and the denitrifying bacteria storage tank 3 is connected with the residue discharge pipe 4, and the residue discharge valve 5 is arranged on the pipeline of the residue discharge pipe 4.

[0034] The above content is analyzed: through the setting of the residue discharge pipe 4 and the residue discharge valve 5, the residues in the culture medium mixing tank 1, the fermentation treatment tank 2 and the denitrifying bacteria storage tank 3 can be discharged.

[0035] Example three: please refer to Figs. 1-3 The utility model provides a technical scheme based on example one: the culture medium mixing tank 1, the fermentation treatment tank 2 and the denitrifying bacteria storage tank 3 all include a hollow tank body with an upper opening and a tank cover arranged at the upper opening of the tank body.

[0036] The above content is analyzed: it is convenient to clean and add material to the culture medium mixing tank 1, the fermentation treatment tank 2 and the denitrifying bacteria storage tank 3.

[0037] Example four: please refer to Figs. 1-3 The utility model provides a technical scheme based on example one: the end of the oxygen supply pipe 15 is provided with a blower 16, and the air precision filter 24 is arranged at one end of the oxygen supply pipe 15 close to the blower 16.

[0038] The above content is analyzed: the blower 16 adopts a blower, the oxygen (air) is compressed, and the air supply is accelerated, and the air precision filter 24 adopts an existing air precision filtering device to filter the entering air.

[0039] Example five: please refer to Figs. 1-3 The utility model provides a technical scheme based on example one: the pipeline of the oxygen supply branch pipe two 17, the pipeline of the oxygen supply branch pipe one 23 and the pipeline of the oxygen supply pipe 15 are all provided with the air path valve 18.

[0040] The above content is analyzed: the setting of the air path valve 18 facilitates the on-off control of the pipeline of the oxygen supply branch pipe one 23, the pipeline of the oxygen supply branch pipe two 17 and the pipeline of the oxygen supply pipe 15.

[0041] Embodiment six: please refer to Figs. 1-3 The utility model discloses based on embodiment one provides a technical scheme: the oxygen supply pipe 15 is located in the nitrogen removal bacteria storage jar 3 one end is connected with the dispersion disc 21, the dispersion disc 21 is the hollow disc, and the lower surface of dispersion disc 21 is evenly provided with the air outlet.

[0042] The above content analysis: through the setting of dispersion disc 21, the oxygen that enters is dispersed, makes the oxygen fast dispersion to different positions.

[0043] Embodiment seven: please refer to Figs. 1-3 The utility model discloses based on embodiment one provides a technical scheme: the culture medium mixing jar 1, the upper surface of fermentation treatment jar 2 is installed with drive motor 8, the output shaft of drive motor 8 is connected with stirring paddle 9, and the stirring paddle 9 is located in the inside of culture medium mixing jar 1, fermentation treatment jar 2, the inner wall of culture medium mixing jar 1, fermentation treatment jar 2 is provided with auxiliary stirring rod 10.

[0044] The above content analysis: through the setting of drive motor 8, stirring paddle 9, auxiliary stirring rod 10, the culture medium in culture medium mixing jar 1, the culture medium and fungicide mixture in fermentation treatment jar 2 are evenly mixed.

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model, for those skilled in the art, obviously the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point, should be considered as exemplary, and is non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, any figure mark in the claims should not be considered as limiting the claims involved.

[0046] Although the embodiments of the utility model have been shown and described, for those skilled in the art, can understand that these embodiments can be changed, modified, replaced and changed in multiple ways without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A multi-effect thermostatic device for cultivating denitrifying bacteria for biological reinforcement of wastewater treatment, characterized in that it comprises: include: Culture medium mixing tank (1), fermentation treatment tank (2), denitrifying bacteria storage tank (3); The culture medium mixing tank (1) is connected to a water supply pipe (22) on its side, and the denitrifying bacteria storage tank (3) is connected to a nutrient supply branch pipe (23) on its upper side. The upper end of the nutrient supply branch pipe (23) is connected to an oxygen supply pipe (15). An oxygen supply branch pipe (17) is connected to the oxygen supply pipe (15). The oxygen supply branch pipe (17) is connected to the fermentation treatment tank (2). A culture medium supply pipe (6) is connected between the culture medium mixing tank (1) and the fermentation treatment tank (2). A supply suction pump (7) is installed on the culture medium supply pipe (6). A microbial agent supply pipe (19) is connected between the fermentation treatment tank (2) and the denitrifying bacteria storage tank (3). A microbial agent suction pump (20) is installed on the microbial agent supply pipe (19). The microbial agent supply pipe (19) extends to the lower inside of the denitrifying bacteria storage tank (3). The fermentation tank (2) has a jacketed structure (11) formed inside its side wall, and a cold water inlet pipe (13) and a hot water outlet pipe (12) are connected to the outer wall of the fermentation tank (2). The cold water inlet pipe (13) and the hot water outlet pipe (12) are connected to the jacketed structure (11). A temperature detector (14) is installed on the fermentation tank (2), and the probe of the temperature detector (14) extends into the interior of the fermentation tank (2).

2. The multi-effect thermostatic apparatus for cultivating denitrifying bacteria for biological reinforcement of wastewater treatment according to claim 1, characterized in that: The lower surfaces of the culture medium mixing tank (1), fermentation treatment tank (2), and denitrifying bacteria storage tank (3) are all connected to a slag discharge pipe (4), and a slag discharge valve (5) is installed on the slag discharge pipe (4).

3. The multi-effect thermostatic apparatus for cultivating denitrifying bacteria for biological reinforcement of wastewater treatment according to claim 1, characterized in that: The culture medium mixing tank (1), fermentation treatment tank (2), and denitrifying bacteria storage tank (3) all include a hollow tank body with an opening at the top and a tank cover with a designated opening at the top of the tank body.

4. The multi-effect thermostatic apparatus for cultivating denitrifying bacteria for biological reinforcement of wastewater treatment according to claim 1, characterized in that: A blower (16) is provided at the end of the oxygen supply pipe (15), and an air fine filter (24) is provided at the end of the oxygen supply pipe (15) near the blower (16).

5. The multi-effect thermostatic apparatus for cultivating denitrifying bacteria for bioaugmentation of wastewater treatment according to claim 1, characterized in that: Gas valves (18) are installed on the pipelines of the second oxygen supply branch (17), the first oxygen supply branch (23), and the oxygen supply pipe (15).

6. The multi-effect thermostatic apparatus for cultivating denitrifying bacteria for bioaugmentation of wastewater treatment according to claim 1, characterized in that: The oxygen supply pipe (15) is connected to a dispersion plate (21) at one end inside the denitrifying bacteria storage tank (3). The dispersion plate (21) is a hollow disc, and the lower surface of the dispersion plate (21) is uniformly provided with air outlet holes.

7. The multi-effect thermostatic apparatus for cultivating denitrifying bacteria for bioaugmentation of wastewater treatment according to claim 1, characterized in that: The upper surfaces of the culture medium mixing tank (1) and the fermentation tank (2) are equipped with drive motors (8), the output shaft of the drive motor (8) is connected to a stirring paddle (9), the stirring paddle (9) is located inside the culture medium mixing tank (1) and the fermentation tank (2), and the inner walls of the culture medium mixing tank (1) and the fermentation tank (2) are provided with auxiliary stirring rods (10).

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