Biochemical pool aerobic strain monitoring device suitable for viscose staple fiber production

Abstract

The utility model discloses a biochemical pool aerobic strain monitoring device suitable for viscose staple fiber production, which comprises a reaction tank, a bacterial liquid dilution tank, an aeration device and a COD (Chemical Oxygen Demand) detector, the reaction tank is provided with a liquid inlet, a bacterial liquid inlet, a gas delivery pipe and a sampling port for extracting supernatant liquid, the liquid inlet is connected with a biochemical pool through a first pipeline, and the bacterial liquid dilution tank is connected with the biochemical pool through a second pipeline; the bacterial liquid inlet is connected with a bacterial liquid dilution tank through a second pipeline, the bottom of the reaction tank is provided with an aerator and connected with an aeration device through a gas conveying pipe, and the sampling port is connected with a COD detector through a third pipeline. The device disclosed by the utility model has the characteristics of simple and practical structure and low manufacturing cost, and solves the arbitrariness problem of selection and throwing of aerobic bacteria in a biochemical pool in glue making and spinning reaction procedures of a viscose staple fiber production process; the treatment cost of biochemical raw water in the biochemical pool in the glue making and spinning reaction procedures of the viscose staple fiber production process can be effectively controlled, and the effect of improving the related working efficiency is achieved.

Description

Technical Field

[0001] The utility model is a monitoring device for aerobic bacteria in a biochemical pool during viscose staple fiber production, and in particular relates to a device for sampling and monitoring aerobic bacteria in biochemical water produced in the glue making and spinning reaction processes during viscose staple fiber production, belonging to the technical field of monitoring aerobic bacteria in biochemical water of viscose staple fibers. Background Art

[0002] The wastewater generated by the glue making and spinning reactions in the viscose staple fiber production process contains substances such as acid, alkali, hemicellulose, suspended matter, sodium sulfate, zinc sulfate and organic matter, so it needs to be treated. In viscose enterprises, biochemical pools are usually used to add aerobic bacteria to transform and degrade organic matter and other impurities in the wastewater with the participation of microorganisms, so that the COD (chemical oxygen demand) in the wastewater meets the emission standards.

[0003] Chemical oxygen demand (often represented by the symbol COD) is a chemical method that measures the amount of reducing substances in a water sample that need to be oxidized. In the study of industrial wastewater properties and wastewater treatment, COD is an important and quickly measured parameter of organic pollution. It is an important indicator of organic pollution in water bodies and can reflect the degree of pollution in water bodies. The larger the chemical oxygen demand detected (i.e., the higher the COD value), the more serious the organic pollution of the water body. Therefore, the COD removal rate can be used to reflect the effect of wastewater treatment. In addition, the measurement time of COD is relatively short. Under normal circumstances, it can be tested directly after sampling. It is often used to quickly assess the content of organic pollutants in water bodies, especially for monitoring industrial wastewater, municipal sewage or other highly polluted water samples with high organic concentrations and rapid changes. The measurement results can generally be obtained within a few hours, which is suitable for occasions where rapid decision-making is required.

[0004] In the actual production process, the method of using aerobic bacteria in the biochemical water of the biochemical pool in the glue making and spinning reaction process of the viscose staple fiber production process is usually as follows: based on experience, aerobic bacteria are purchased and directly added to the biochemical pool, and nutrients are added to allow the aerobic bacteria to multiply rapidly in the biochemical pool; then, by observing the reproduction of aerobic bacteria in the biochemical pool every day and comparing the COD of the effluent from the biochemical pool, it is confirmed whether the COD value of the effluent meets the set requirements. If it does not meet the set requirements, aerobic bacteria need to be added again until the COD value meets the set requirements. Therefore, there are the following problems:

[0005] (1) Increased production costs: Due to the purchase of unsuitable aerobic bacteria, they were directly added to the biochemical pool in large quantities, resulting in a significant increase in corresponding production costs due to their poor treatment effect on the biochemical water;

[0006] (2) Reduced work efficiency: Since the treatment effect of the purchased aerobic bacteria on the biochemical water is unclear, it is necessary to add aerobic bacteria to the biochemical pool multiple times, which prolongs the treatment time of the biochemical water and thus reduces the production efficiency of the corresponding production process;

[0007] (3) Waste of production resources: The biochemical water that does not meet the treatment requirements of the corresponding link cannot enter the next treatment link, and the company's production cannot stop waiting, which will inevitably cause a significant increase in the production resources it occupies. This will not only cause a waste of production resources, but also increase production costs due to excessive allocation of corresponding production resources.

[0008] Therefore, it is particularly necessary to sample and monitor aerobic bacteria before purchasing and adding them, so as to determine the appropriate aerobic bacteria species and dosage. However, existing technologies mostly provide methods or culture devices for treating biochemical wastewater, such as the method for treating printing and dyeing wastewater disclosed in invention patent publication number CN108328865B and the continuous microbial culture device for water treatment disclosed in utility model patent publication number CN218058958U. However, there is a lack of monitoring devices suitable for aerobic bacteria species in biochemical pools used in viscose staple fiber production. Utility Model Content

[0009] The purpose of the utility model is to provide a monitoring device for aerobic bacteria in a biochemical pool used in viscose staple fiber production. By providing a reaction tank, a bacteria liquid dilution tank, an aeration device, and a COD detector, the device realizes sampling of biochemical raw water in the biochemical pool, configuration of a bacteria liquid dilution liquid with a set ratio, introduction of the bacteria liquid, aeration, extraction of the supernatant after aeration, and COD value detection, thereby realizing monitoring of the aerobic bacteria. This solves the problems of unclear biochemical water treatment effect, low efficiency, and increased cost caused by indiscriminate introduction of aerobic bacteria into the biochemical pool without screening, thereby improving the working effect of biochemical water treatment in viscose staple fiber production and effectively reducing treatment costs.

[0010] The utility model is achieved through the following technical solutions:

[0011] A monitoring device for aerobic bacteria in a biochemical pool used in viscose staple fiber production comprises a reaction tank, a bacterial liquid dilution tank, an aeration device, and a COD detector. The reaction tank is provided with a liquid inlet, a bacterial liquid inlet, an air pipe, and a sampling port for extracting supernatant liquid. The liquid inlet is connected to the biochemical pool via a first pipe, the bacterial liquid inlet is connected to the bacterial liquid dilution tank via a second pipe, an aerator is provided at the bottom of the reaction tank and is connected to the aeration device via an air pipe, and the sampling port is connected to the COD detector via a third pipe.

[0012] Furthermore, the solenoid valve on the first pipeline is interlocked with the solenoid valve on the second pipeline.

[0013] Furthermore, a liquid level sensor is provided on the reaction tank, and the liquid level sensor is interlocked with the solenoid valve on the third pipeline for control.

[0014] Furthermore, the bacterial liquid dilution tank is provided with a bacterial powder feeding port and a water inlet.

[0015] Furthermore, a stirrer is provided in both the bacterial liquid dilution tank and the reaction tank.

[0016] Furthermore, a liquid pump is provided on the first pipeline.

[0017] Furthermore, the reaction tank, bacterial liquid dilution tank, aeration device and COD detector constitute a bacterial strain monitoring group, and the number of the bacterial strain monitoring levels is more than one group.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] (1) The utility model realizes the purpose of preparing aerobic bacterial strain powder into bacterial solution of a set proportion and then adding it into the reaction tank through a reaction tank, a bacterial solution dilution tank, an aeration device and a COD detector, thereby monitoring the aerobic bacterial strains in the biochemical water in the glue making and spinning reaction processes of the viscose staple fiber production process. It solves the problems of unclear biochemical water treatment effect, low efficiency and increased cost caused by random purchase and addition of aerobic bacterial strains in the biochemical water treatment process in the glue making and spinning reaction processes of the viscose staple fiber production process.

[0020] (2) The utility model uses the solenoid valve on the first pipeline and the solenoid valve on the second pipeline for interlocking control, thereby ensuring that the biochemical raw water and bacterial liquid enter the reaction tank according to the set ratio.

[0021] (3) The present invention provides a liquid level sensor in the reaction tank and controls the liquid level sensor in conjunction with the electromagnetic valve on the third pipeline, so that the liquid in the reaction tank can reach the set liquid level, thereby ensuring smooth sampling of the upper clear liquid in the reaction tank.

[0022] (4) The present invention provides a bacterial powder feeding port and a water inlet on the bacterial liquid dilution tank, thereby ensuring that the dry bacterial powder of the aerobic bacterial strain can be mixed and diluted in the bacterial liquid dilution tank according to a set ratio to obtain a bacterial liquid of a set ratio.

[0023] (5) The utility model provides a second agitator in the bacterial liquid dilution tank to make the aerobic bacteria in the bacterial liquid of the set proportion more evenly distributed. The utility model provides a first agitator in the reaction tank to enable the bacterial liquid of the set proportion to be quickly mixed with the biochemical raw water, and to make the aerobic bacteria in the reaction tank evenly distributed. At the same time, it can also prevent the sludge deposition in the raw water from affecting the monitoring results of aeration and aerobic bacteria.

[0024] (6) The present invention ensures that the biochemical raw water in the biochemical pool can smoothly pass through the first pipeline into the reaction tank by arranging a liquid pump on the first pipeline.

[0025] (7) The present invention realizes the purpose of synchronously aerating multiple aerobic bacteria species and sampling and monitoring by configuring the reaction tank, bacteria liquid dilution tank, aeration device and COD detector as a bacteria species monitoring group, and providing more than one group of the bacteria species monitoring group.

[0026] To sum up, the utility model has the characteristics of simple and practical structure and low production cost. It not only solves the problem of random selection and placement of aerobic bacteria in the biochemical pool of the glue making and spinning reaction processes of the viscose staple fiber production process, but also can screen out suitable aerobic bacteria through monitoring results and determine the dosage of aerobic bacteria according to the storage amount of biochemical water in the biochemical pool. It can effectively control the treatment cost of biochemical raw water in the biochemical pool of the glue making and spinning reaction processes of the viscose staple fiber production process, play a role in improving related work efficiency, and avoid waste of corresponding production resources. In addition, the utility model also realizes the purpose of simultaneous monitoring of multiple aerobic bacteria by setting up multiple monitoring groups, thereby quickly screening out one or more aerobic bacteria suitable for the biochemical water, and has higher promotion value in actual application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Among them, 1 is aeration device, 2 is bacterial culture mixer, 3 is reaction tank, 4 is sampling port, 5 is COD detector, 6 is aerator, 7 is air pipe, 8 is bacterial liquid inlet, 9 is liquid inlet, 10 is first pipeline, 11 is second pipeline, and 12 is third pipeline. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the embodiments, but the embodiments of the present invention are not limited thereto.

[0030] Example 1:

[0031] like Figure 1As shown, this embodiment discloses a monitoring device for aerobic bacteria in a biochemical pool used in viscose staple fiber production, comprising a reaction tank 3, a bacterial liquid dilution tank 2, an aeration device 1, and a COD detector 5. The reaction tank 3 is provided with a liquid inlet 9, a bacterial liquid inlet 8, an air pipe 7, and a sampling port 4 for extracting supernatant liquid. The liquid inlet 9 is connected to the biochemical pool via a first pipe 10, the bacterial liquid inlet 8 is connected to the bacterial liquid dilution tank 2 via a second pipe 11, an aerator 6 is provided at the bottom of the reaction tank 3 and is connected to the aeration device 1 via an air pipe 7, and the sampling port 4 is connected to the COD detector 5 via a third pipe 12.

[0032] The method of using this embodiment is as follows:

[0033] Before use: Check each component in this embodiment and ensure that there are no other substances that may affect the monitoring structure in each component. The first pipeline 10, the second pipeline 11, and the third pipeline 12 are all in a closed state.

[0034] When using:

[0035] Step 1: Add aerobic bacterial strain dry powder and water in a set ratio into the bacterial solution dilution tank 2 to obtain a bacterial solution of the set ratio;

[0036] Step 2: Open the first pipe 10 and the second pipe 11, so that the biochemical raw water in the biochemical pool is input into the reaction tank 3 through the first pipe 10, and the bacterial solution diluted to a set ratio is input into the reaction tank 3 through the second pipe 11 according to a set ratio. When the liquid level in the reaction tank 3 is higher than the sampling port 4, the first pipe 10 and the second pipe 11 are closed;

[0037] Step 3: Turn on the aeration device 1 to aerate the reaction tank 3. When the aeration time reaches the set requirement, turn off the aeration device 1 and stop aeration;

[0038] Step 4: When the sludge in the reaction tank 3 stops rolling and the upper liquid is clear, the third pipe 12 is opened to transport the upper clear liquid in the reaction tank 3 to the COD detector 5. When the transport volume reaches the set requirement, the third pipe 12 is closed;

[0039] Step 5: Turn on the COD detector, obtain the COD value, and record the first monitoring result;

[0040] Step 6: Repeat steps 3 to 5 until the number of monitoring times reaches the set requirement, and record the monitoring results of each time;

[0041] Step 7: Calculate the COD removal rate of the aerobic bacteria to analyze whether it meets the requirements of biochemical water treatment in the biochemical pool in viscose staple fiber production.

[0042] After use, each component in this embodiment is cleaned and dried for subsequent use.

[0043] In this embodiment, the aerobic bacterial powder and water are diluted and mixed at a ratio of 5‰ to obtain a 5‰ bacterial solution. In actual use, the ratio can also be set according to individual needs to meet different needs.

[0044] Furthermore, to ensure that the biochemical raw water and bacterial solution enter the reaction tank 3 in a predetermined ratio, the solenoid valve on the first pipe 10 and the solenoid valve on the second pipe 11 are configured for interlocking control. In this embodiment, the solenoid valve on the first pipe 10 interlocks with the solenoid valve on the second pipe 11. Of course, the solenoid valve on the first pipe 10 can also be controlled by the solenoid valve on the second pipe 11, as long as the biochemical raw water and bacterial solution can enter the reaction tank 3 in the predetermined ratio.

[0045] Furthermore, to ensure that the mixed liquid in the reaction tank 3 reaches a set level and that the supernatant liquid in the reaction tank 3 can be sampled smoothly, a liquid level sensor is installed in the reaction tank 3. This level sensor controls the solenoid valve on the third conduit 12. Specifically, in this embodiment, the liquid level sensor is used to display the liquid level in the reaction tank 3, ensuring that the supernatant liquid is located at the sampling port 4 after processing. If the mixed liquid in the reaction tank 3 does not reach the set level, the solenoid valve control switch remains closed.

[0046] Furthermore, in this embodiment, the bacterial liquid dilution tank 2 is provided with a bacterial powder feeding port and a water inlet, thereby ensuring that the dry bacterial powder of the aerobic bacterial strain can be mixed and diluted in the bacterial liquid dilution tank according to a set ratio to obtain a bacterial liquid of the set ratio.

[0047] Furthermore, in order to ensure that the bacterial liquid input into the reaction tank 3 reaches a set ratio, a second agitator is provided in the bacterial liquid dilution tank 2 so that the dry powder of the aerobic bacteria and water can be evenly mixed.

[0048] Furthermore, in order to ensure that the bacterial liquid input into the reaction tank 3 can be fully mixed with the biochemical raw water and have a better treatment effect on the biochemical raw water, a first agitator is set in the reaction tank 3. At the same time, the first agitator can also prevent sludge from accumulating on the aerator, hindering the smooth progress of aeration, and thus affecting the accuracy of the monitoring results.

[0049] Furthermore, in order to limit the installation position of this embodiment during use and ensure that the biochemical raw water in the biochemical pool can smoothly enter the reaction tank 3 through the first pipe 10, a liquid pump is provided on the first pipe 10.

[0050] The usage method of this embodiment has been adjusted accordingly after the above optimization, and the details are as follows:

[0051] 1. Add chain control conditions and automatically perform chain control in corresponding steps.

[0052] (1) Setting the interlocking control conditions of the solenoid valves on the first pipeline 10 and the second pipeline 11

[0053] (2) Setting the conditions for the interlocking control of the liquid level detection of the reaction tank 3 and the solenoid valve on the third pipeline 12,

[0054] 2. The usage of the first agitator, the second agitator and the liquid pump are added to the corresponding steps.

[0055] (1) Step 1 is modified as follows: aerobic bacterial strain dry powder and water are placed in a bacterial solution dilution tank 2 according to a set ratio, and the second agitator is turned on to fully mix the aerobic bacterial strain dry powder and water to obtain a bacterial solution of the set ratio;

[0056] (2) Step 2 is modified as follows: start the liquid pump, the first pipe 10, and the second pipe 11, so that the raw biochemical water in the biochemical pool is input into the reaction tank 3 through the first pipe 10 under the action of the liquid pump, and the bacterial solution diluted to the set ratio is input into the reaction tank 3 through the second pipe 11 according to the set ratio until the liquid level in the reaction tank 3 is higher than the sampling port 4, then close the first pipe 10 and the second pipe 11, start the first agitator, and after the raw biochemical water and the bacterial solution input into the reaction tank 3 are fully mixed, close the first agitator;

[0057] In order to ensure smooth aeration in step 3, the second agitator may not be turned off in step 2, and the first agitator may be turned off after the aeration device 1 is started.

[0058] Example 2:

[0059] This embodiment discloses a monitoring device for aerobic bacterial species in biochemical pools used in viscose staple fiber production. This device is a preferred embodiment based on Example 1 and includes: a bacterial species monitoring group composed of the reaction tank 3, bacterial solution dilution tank 2, aeration device 1, and COD detector 5. The number of bacterial species monitoring groups is set according to the number of aerobic bacterial species to be monitored, i.e., one bacterial species monitoring group corresponds to one aerobic bacterial species. The purpose of this embodiment is to simultaneously sample and monitor multiple aerobic bacterial species through this configuration, and to compare and analyze the corresponding monitoring results to select one or more aerobic bacterial species suitable for treating the biochemical water.

[0060] The method of using this utility model is as follows:

[0061] Before use: Prepare the corresponding number of strain monitoring groups corresponding to the number of aerobic bacteria species to be monitored, including reaction tanks 3, bacterial liquid dilution tanks 2, aeration devices 1, and COD detectors 5. Set the control conditions according to the interlocking control requirements between the components so that the first pipe 10, the second pipe 11, and the third pipe 12 in each strain monitoring group are all in a closed state.

[0062] When using:

[0063] Step 1: Take the same mass of aerobic bacterial strain dry powder and place it into the bacterial solution dilution tank 2 of its corresponding bacterial strain monitoring group. Then, open the water inlet connecting pipe of the bacterial solution dilution tank 2 of each bacterial strain monitoring group and inject a sufficient amount of water into the bacterial solution dilution tank 2. Then, turn on the agitator in the bacterial solution dilution tank 2 to quickly and thoroughly mix the aerobic bacterial strain dry powder with the water, and form a set proportion of bacterial solution in the bacterial solution dilution tank 2 of each bacterial strain monitoring group.

[0064] Step 2: Open the first pipe 10 and the second pipe 11 of each strain monitoring group, and input biochemical raw water and bacterial liquid into the reaction tank 3 of the same group according to the set ratio through the interlocking control of the solenoid valve on the first pipe 10 and the solenoid valve on the second pipe 11. When the liquid level in the reaction tank 3 of the strain monitoring group is higher than the sampling port 4, close the first pipe 10 and the second pipe 11. At this time, the third pipe 12 is in a closed state, and start the agitator in the reaction tank 3 of each strain monitoring group to fully mix the biochemical raw water and bacterial liquid. Then, turn off the agitator in the reaction tank 3;

[0065] Step 3: Turn on the aeration device 1 of each bacterial species monitoring group to aerate the reaction tank 3 of the same group. When the aeration time reaches the set requirement, turn off the aeration device 1 of each bacterial species monitoring group to stop aeration.

[0066] Step 4: When the sludge in the reaction tank 3 of each bacterial species monitoring group stops rolling and the upper liquid is clear, the third pipe 12 of each bacterial species monitoring group is opened to transport the upper clear liquid in the reaction tank 3 of the same group to the COD detector 5 of the same group. When the transport volume reaches the set requirement, the third pipe 12 of each bacterial species monitoring group is closed;

[0067] Step 5: Turn on the COD detector, obtain the COD value, and record the monitoring results;

[0068] Step 6: Repeat steps 3 to 4 until the number of monitoring times reaches the set requirement, and obtain the monitoring results of the set number of monitoring times;

[0069] Step 7: Calculate the corresponding COD removal rate of each bacterial species monitoring group, analyze and screen out the applicable aerobic bacteria species that meet the requirements of biochemical water treatment in the biochemical pool in viscose staple fiber production.

[0070] After use, each component in this embodiment is cleaned and dried for subsequent use.

[0071] In this embodiment, in order to distinguish different bacterial species, corresponding labels can be made on the components within the same bacterial species monitoring group to avoid confusion between different bacterial species and ensure the accuracy of the monitoring results.

[0072] Because the methods described in this embodiment are based on optimal implementations, in actual use, the methods can be modified based on the component configurations used. Furthermore, it is also possible to program and control the components through a computer system, further reducing the human factor in the monitoring process and thus obtaining more accurate monitoring results.

[0073] It should be noted that the interlocking control in the present invention can be implemented by an interlocking controller or interlocking control circuit, and the synchronous control can be implemented by a synchronous controller or a series control circuit. Both of these are prior art and will not be further elaborated here. Of course, any device, structure, or circuit that can meet the interlocking control and synchronous control requirements of the present invention is applicable to the present invention.

[0074] In addition, the raw water, biochemical wastewater, biochemical raw water and biochemical water mentioned in the present invention all refer to the biochemical water in the biochemical pool in the glue making and spinning reaction processes of the viscose staple fiber production process.

[0075] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention falls within the scope of protection of the present invention.

Claims

1. A monitoring device for aerobic bacteria in biochemical pools used in viscose staple fiber production, characterized by: The invention comprises a reaction tank (3), a bacterial liquid dilution tank (2), an aeration device (1) and a COD detector (5). The reaction tank (3) is provided with a liquid inlet (9), a bacterial liquid inlet (8), an air transmission pipe (7) and a sampling port (4) for extracting supernatant liquid. The liquid inlet (9) is connected to a biochemical pool via a first pipe (10), the bacterial liquid inlet (8) is connected to the bacterial liquid dilution tank (2) via a second pipe (11), an aerator (6) is provided at the bottom of the reaction tank (3) and is connected to the aeration device (1) via an air transmission pipe (7), and the sampling port (4) is connected to the COD detector (5) via a third pipe (12).

2. The monitoring device for aerobic bacteria in a biochemical pool used in viscose staple fiber production according to claim 1, characterized in that: The solenoid valve on the first pipeline (10) is interlocked with the solenoid valve on the second pipeline (11) for control.

3. The monitoring device for aerobic bacteria in a biochemical pool for viscose staple fiber production according to claim 1, characterized in that: A liquid level sensor is provided on the reaction tank (3), and the liquid level sensor is interlocked with the solenoid valve on the third pipeline (12) for control.

4. The monitoring device for aerobic bacteria in a biochemical pool for viscose staple fiber production according to claim 1, characterized in that: The bacterial liquid dilution tank (2) is provided with a bacterial powder feeding port and a water inlet.

5. The monitoring device for aerobic bacteria in a biochemical pool for viscose staple fiber production according to claim 1, characterized in that: Agitators are provided in both the bacterial liquid dilution tank (2) and the reaction tank (3).

6. The monitoring device for aerobic bacteria in a biochemical pool for viscose staple fiber production according to claim 1, characterized in that: A liquid pump is also provided on the first pipeline (10).

7. A monitoring device for aerobic bacteria in a biochemical pool for viscose staple fiber production according to any one of claims 1 to 6, characterized in that: The reaction tank (3), the bacterial liquid dilution tank (2), the aeration device (1) and the COD detector (5) constitute a bacterial strain monitoring group, and the number of the bacterial strain monitoring groups is more than one group.

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