Treatment method for purifying eutrophic sewage through microbial photosynthesis

Abstract

The invention discloses a treatment method for purifying eutrophic sewage through microorganism photosynthesis. The treatment method comprises the following steps: step 1, establishing an eutrophic sewage treatment system; step 2, data acquisition; step 3, process selection; 4, adjusting the environment; 5, sewage treatment; step 6, feedback control; the treatment process is automatically selected according to the organic matter concentration and the pH value of the sewage, so that the purification efficiency can be effectively improved while the sewage purification effect is ensured; the living environment of microorganisms is monitored through the data acquisition module, and the environment is automatically regulated through the environment regulation module, so that the growth and metabolism speeds of the microorganisms are in the optimal state, and the sewage treatment efficiency is improved; the anaerobic neutral bacteria, the aerobic neutral bacteria, the anaerobic alkaline bacteria, the aerobic alkaline bacteria and the photosynthetic bacteria are used for synergistically treating the sewage, so that the sewage treatment efficiency and the purification effect can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a method for treating eutrophic sewage by photosynthetic purification of eutrophic sewage by microorganisms. Background Art

[0002] Eutrophication of water refers to a phenomenon in which the nutrient content in the water is too high, resulting in the proliferation of algae and other microorganisms, causing the water quality to deteriorate. The method of microbial sewage treatment is to use the growth and metabolism of microorganisms to consume the nutrients in the sewage to achieve the purpose of decomposing or reducing pollutants and purifying the water. However, the existing methods of microbial purification of eutrophic sewage have the following defects: First, the existing technology adopts a fixed sewage purification process, such as first treating the sewage anaerobicly and then aerobic treatment. Although this treatment method can ensure the purification effect, it will reduce the purification efficiency; second, the growth of microorganisms must meet certain conditions. The existing technology cannot accurately control the growth environment of microorganisms, causing the growth and metabolism of microorganisms to slow down, resulting in a decrease in sewage treatment efficiency; third, due to the different living environments of microorganisms, the existing technology generally uses a single type of microorganism for sewage treatment. Although it is conducive to reducing the construction cost of sewage treatment facilities, it is not conducive to improving sewage treatment efficiency and purification effect. Summary of the invention

[0003] The purpose of the present invention is to provide a method for treating eutrophic sewage by photosynthetic purification of microorganisms, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a method for treating eutrophic wastewater by photosynthetic purification of microorganisms, comprising the following steps: step 1, establishing a eutrophic wastewater treatment system; step 2, data collection; step 3, process selection; step 4, environmental adjustment; step 5, wastewater treatment; step 6, feedback control;

[0005] In the above step 1, the eutrophication sewage treatment system specifically includes: a data acquisition module, an environment adjustment module, a reaction module, a pipe system switching module, a data storage module and a main control module, and the data acquisition module, the environment adjustment module, the pipe system switching module and the data storage module are all connected to the main control module, and the data acquisition module and the environment adjustment module are both arranged in the reaction module;

[0006] In the above step 2, the organic matter concentration and pH value of the eutrophic sewage entering the sewage treatment system are monitored by the data acquisition module, and the bacterial environmental parameters in the reaction module are monitored by the data acquisition module, and the data are transmitted to the main control module;

[0007] In the above step 3, the main control module selects the sewage treatment process according to the organic matter concentration and pH value of the sewage, and controls the pipe system switching module to switch the pipe system connection state accordingly;

[0008] In the above step 4, the main control module sends a control instruction to the environment adjustment module according to the sewage parameters in the reaction module and the optimal living conditions of the bacteria stored in the data storage module, and the environment adjustment module adjusts the living environment of the bacteria to keep the living environment of the bacteria in the optimal conditions;

[0009] In the above step 5, the eutrophic sewage entering the sewage treatment system is purified according to the process route selected in step 3;

[0010] In the above step six, the main control module controls the water inlet and outlet of each sewage treatment area according to the degree of sewage purification in each sewage treatment area.

[0011] Preferably, in step one, the environment adjustment module includes a pH adjustment submodule, a light adjustment submodule, a temperature adjustment submodule, a dissolved oxygen adjustment submodule and a carbon-nitrogen ratio adjustment submodule.

[0012] Preferably, in step one, the reaction module includes a neutral treatment tank, an alkaline treatment tank, a membrane reactor and sewage treatment bacteria.

[0013] Preferably, the neutral treatment tank and the alkaline treatment tank both include an anaerobic treatment area and an aerobic treatment area.

[0014] Preferably, membrane reactors are provided in both the anaerobic treatment area and the aerobic treatment area, and sewage treatment bacteria are provided on the membrane reactors.

[0015] Preferably, the sewage treatment bacteria include anaerobic neutral bacteria, aerobic neutral bacteria, anaerobic alkaline bacteria, aerobic alkaline bacteria and photosynthetic bacteria, and the anaerobic neutral bacteria and aerobic neutral bacteria are respectively arranged in the anaerobic treatment area and aerobic treatment area of ​​the neutral treatment tank, the anaerobic alkaline bacteria and aerobic alkaline bacteria are respectively arranged in the anaerobic treatment area and aerobic treatment area of ​​the alkaline treatment tank, and the photosynthetic bacteria are arranged in the aerobic treatment area of ​​the neutral treatment tank and the alkaline treatment tank.

[0016] Preferably, in step 2, the bacterial environmental parameters in the reaction module specifically include pH value, light intensity, temperature, dissolved oxygen content and carbon-nitrogen ratio.

[0017] Preferably, in the step three, the specific method of selecting the sewage treatment process is: for sewage with an organic matter concentration higher than a threshold, first use anaerobic treatment and then use aerobic treatment; for sewage with an organic matter concentration lower than the threshold, directly use aerobic treatment; for sewage with a neutral pH value, use a neutral treatment tank; for sewage with an alkaline pH value, use an alkaline treatment tank.

[0018] Preferably, in step five, the eutrophic sewage entering the sewage treatment system needs to be filtered, toxic substances removed and nutrient salt concentration adjusted.

[0019] Preferably, in step six, the degree of sewage purification is expressed by the concentrations of nitrogen and phosphorus.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention automatically selects a treatment process according to the organic matter concentration and pH value of the sewage, thereby effectively improving the purification efficiency while ensuring the sewage purification effect; the present invention monitors the living environment of microorganisms through a data acquisition module, and automatically adjusts the environment through an environment adjustment module, thereby ensuring that the growth and metabolic rate of the microorganisms are in an optimal state, thereby improving the sewage treatment efficiency; the present invention adopts anaerobic neutral bacteria, aerobic neutral bacteria, anaerobic alkaline bacteria, aerobic alkaline bacteria and photosynthetic bacteria to collaboratively treat sewage, which can improve the sewage treatment efficiency and purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural block diagram of the eutrophication sewage treatment system of the present invention;

[0022] Figure 2 It is a structural block diagram of the environment adjustment module of the present invention;

[0023] Figure 3 It is a structural block diagram of the reaction module of the present invention;

[0024] Figure 4 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-4The present invention provides an embodiment: a method for treating eutrophic wastewater by photosynthetic purification of microorganisms, comprising the following steps: step 1, establishing a eutrophic wastewater treatment system; step 2, data collection; step 3, process selection; step 4, environmental adjustment; step 5, wastewater treatment; step 6, feedback control;

[0027] In the above step 1, the eutrophication sewage treatment system specifically includes: a data acquisition module, an environment adjustment module, a reaction module, a pipe system switching module, a data storage module and a main control module, and the data acquisition module, the environment adjustment module, the pipe system switching module and the data storage module are all connected to the main control module, the data acquisition module and the environment adjustment module are both arranged in the reaction module, the environment adjustment module includes a pH value adjustment submodule, a light adjustment submodule, a temperature adjustment submodule, a dissolved oxygen adjustment submodule and a carbon-nitrogen ratio adjustment submodule; the reaction module includes a neutral treatment tank, an alkaline treatment tank, a membrane reactor and sewage treatment bacteria; The neutral treatment tank and the alkaline treatment tank both include an anaerobic treatment area and an aerobic treatment area; membrane reactors are provided in the anaerobic treatment area and the aerobic treatment area, and sewage treatment bacteria are provided on the membrane reactors; the sewage treatment bacteria include anaerobic neutral bacteria, aerobic neutral bacteria, anaerobic alkaline bacteria, aerobic alkaline bacteria and photosynthetic bacteria, and the anaerobic neutral bacteria and aerobic neutral bacteria are respectively provided in the anaerobic treatment area and aerobic treatment area of ​​the neutral treatment tank, the anaerobic alkaline bacteria and aerobic alkaline bacteria are respectively provided in the anaerobic treatment area and aerobic treatment area of ​​the alkaline treatment tank, and the photosynthetic bacteria are provided in the aerobic treatment area of ​​the neutral treatment tank and the alkaline treatment tank;

[0028] In the above step 2, the organic matter concentration and pH value of the eutrophic sewage entering the sewage treatment system are monitored by the data acquisition module, and the bacterial environmental parameters in the reaction module are monitored by the data acquisition module, and the data are transmitted to the main control module; wherein the bacterial environmental parameters in the reaction module specifically include pH value, light intensity, temperature, dissolved oxygen content and carbon-nitrogen ratio;

[0029] In the above step 3, the main control module selects a sewage treatment process according to the organic matter concentration and pH value of the sewage, and controls the pipe system switching module to switch the pipe system connection state accordingly; wherein the specific method for selecting the sewage treatment process is: for sewage with an organic matter concentration higher than a threshold, anaerobic treatment is first used, and then aerobic treatment is used; for sewage with an organic matter concentration lower than a threshold, aerobic treatment is directly used; for sewage with a neutral pH value, a neutral treatment tank is used; for sewage with an alkaline pH value, an alkaline treatment tank is used;

[0030] In the above step 4, the main control module sends a control instruction to the environment adjustment module according to the sewage parameters in the reaction module and the optimal living conditions of the bacteria stored in the data storage module, and the environment adjustment module adjusts the living environment of the bacteria to keep the living environment of the bacteria in the optimal conditions;

[0031] In the above step 5, the eutrophic sewage entering the sewage treatment system is purified according to the process route selected in step 3; wherein, the eutrophic sewage entering the sewage treatment system needs to be filtered, toxic substances are removed, and nutrient salt concentration is adjusted;

[0032] In the above step six, the main control module controls the water inlet and outlet of each sewage treatment area according to the degree of sewage purification in each sewage treatment area; wherein the degree of sewage purification is represented by the concentration of nitrogen and phosphorus.

[0033] Based on the above, the advantage of the present invention is that when the invention is used, the organic matter concentration and pH value of the sewage entering the system are collected through the data acquisition module, and the main control module issues instructions to the pipe system switching module accordingly. The pipe system switching module constructs a process route by switching the pipe systems between the various sewage treatment areas, which can effectively improve the purification efficiency while ensuring the sewage purification effect; the main control module issues control instructions to the environment adjustment module based on the sewage parameters in the reaction module and the optimal survival conditions of the bacteria stored in the data storage module, and automatically adjusts the environment through the pH value adjustment submodule, the light adjustment submodule, the temperature adjustment submodule, the dissolved oxygen adjustment submodule and the carbon-nitrogen ratio adjustment submodule in the environment adjustment module, thereby ensuring that the growth and metabolic rate of microorganisms are in the best state, thereby improving the sewage treatment efficiency; the reaction module uses anaerobic neutral bacteria, aerobic neutral bacteria, anaerobic alkaline bacteria, aerobic alkaline bacteria and photosynthetic bacteria to collaboratively treat sewage, which can improve the sewage treatment efficiency and purification effect.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A method for treating eutrophic wastewater by photosynthetic purification of microorganisms, comprising the following steps: Step 1: Establishing a eutrophic wastewater treatment system; Step 2: Data collection; Step 3: Process selection; Step 4: Environmental adjustment; Step 5: Wastewater treatment; Step 6: Feedback control; It is characterized by: In the above step 1, the eutrophication sewage treatment system specifically includes: a data acquisition module, an environment adjustment module, a reaction module, a pipe system switching module, a data storage module and a main control module, and the data acquisition module, the environment adjustment module, the pipe system switching module and the data storage module are all connected to the main control module, and the data acquisition module and the environment adjustment module are both arranged in the reaction module; In the above step 2, the organic matter concentration and pH value of the eutrophic sewage entering the sewage treatment system are monitored by the data acquisition module, and the bacterial environmental parameters in the reaction module are monitored by the data acquisition module, and the data are transmitted to the main control module; In the above step 3, the main control module selects the sewage treatment process according to the organic matter concentration and pH value of the sewage, and controls the pipe system switching module to switch the pipe system connection state accordingly; In the above step 4, the main control module sends a control instruction to the environment adjustment module according to the sewage parameters in the reaction module and the optimal living conditions of the bacteria stored in the data storage module, and the environment adjustment module adjusts the living environment of the bacteria to keep the living environment of the bacteria in the optimal conditions; In the above step 5, the eutrophic sewage entering the sewage treatment system is purified according to the process route selected in step 3; In the above step six, the main control module controls the water inlet and outlet of each sewage treatment area according to the degree of sewage purification in each sewage treatment area.

2. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 1, characterized in that: In the step 1, the environment adjustment module includes a pH value adjustment submodule, a light adjustment submodule, a temperature adjustment submodule, a dissolved oxygen adjustment submodule and a carbon-nitrogen ratio adjustment submodule.

3. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 1, characterized in that: In the step 1, the reaction module includes a neutral treatment tank, an alkaline treatment tank, a membrane reactor and sewage treatment bacteria.

4. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 3, characterized in that: The neutral treatment tank and the alkaline treatment tank both include an anaerobic treatment area and an aerobic treatment area.

5. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 4, characterized in that: Membrane reactors are arranged in the anaerobic treatment area and the aerobic treatment area, and sewage treatment bacteria are arranged on the membrane reactors.

6. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 5, characterized in that: The sewage treatment bacteria include anaerobic neutral bacteria, aerobic neutral bacteria, anaerobic alkaline bacteria, aerobic alkaline bacteria and photosynthetic bacteria, and the anaerobic neutral bacteria and aerobic neutral bacteria are respectively arranged in the anaerobic treatment area and aerobic treatment area of ​​the neutral treatment tank, the anaerobic alkaline bacteria and aerobic alkaline bacteria are respectively arranged in the anaerobic treatment area and aerobic treatment area of ​​the alkaline treatment tank, and the photosynthetic bacteria are arranged in the aerobic treatment area of ​​the neutral treatment tank and the alkaline treatment tank.

7. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 1, characterized in that: In step 2, the bacterial environmental parameters in the reaction module specifically include pH value, light intensity, temperature, dissolved oxygen content and carbon-nitrogen ratio.

8. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 1, characterized in that: In the step three, the specific method of selecting the sewage treatment process is: for sewage with an organic matter concentration higher than a threshold, first use anaerobic treatment and then aerobic treatment; for sewage with an organic matter concentration lower than a threshold, directly use aerobic treatment; for sewage with a neutral pH value, use a neutral treatment tank; for sewage with an alkaline pH value, use an alkaline treatment tank.

9. The method for treating eutrophic wastewater by photosynthetic purification of microorganisms according to claim 1, characterized in that: In step five, the eutrophic sewage entering the sewage treatment system needs to be filtered to remove toxic substances and adjust the nutrient salt concentration.

10. The method for treating eutrophic wastewater by photosynthetic microorganisms according to claim 1, characterized in that: In step six, the degree of sewage purification is expressed by the concentrations of nitrogen and phosphorus.

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