A method for monitoring purification of reclaimed water and a treatment device

Abstract

This invention discloses a method and device for monitoring and treating greywater purification. The method includes: recording the amount of wastewater injected into a bioreactor chamber to obtain the volume of wastewater within the chamber; performing water quality testing on the wastewater in the bioreactor chamber to obtain the microbial content index; calculating the theoretical value of reactive gases based on the wastewater volume and microbial content index; inputting a biological bacterial solution in a specified ratio according to the wastewater volume and recording the change in reactive gas pressure over a first preset time period; correcting the theoretical value of reactive gases based on the change in reactive gas pressure to obtain the amount of reactive gases within the bioreactor chamber; and setting the gas pressure threshold of the output valve of the bioreactor chamber based on the amount of reactive gases. By detecting water quality and obtaining the reaction between the biological bacterial solution and wastewater, the valve of the bioreactor chamber is automatically adjusted and controlled, enabling the greywater purification system to achieve automated wastewater treatment and improve the efficiency of greywater purification.

Description

Technical Field

[0001] This invention relates to the field of water purification technology, specifically to a method and device for monitoring and treating greywater purification. Background Technology

[0002] Greywater treatment systems purify domestic sewage, allowing the purified water to be used for everyday purposes such as toilet flushing, garden irrigation, road cleaning, and city fountains. Using greywater technology conserves water resources and renders wastewater harmless.

[0003] Current greywater treatment systems mainly use filtration and biological reaction to achieve automated purification of wastewater by setting fixed amounts of enzymes and reaction time. However, this method is prone to insufficient treatment of wastewater, affecting the reliability of greywater treatment, or excessively long reaction times, affecting the efficiency of the greywater treatment system. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a method and device for monitoring and treating greywater purification. By detecting water quality and obtaining the reaction between biological bacteria solution and sewage, the valves of the biological reaction chamber are automatically adjusted and controlled, so that the greywater purification system can achieve automated sewage treatment and improve the working efficiency of greywater purification.

[0005] This invention provides a method for monitoring greywater purification, the method comprising:

[0006] Record the amount of wastewater injected into the bioreactor chamber to obtain the volume of wastewater inside the bioreactor chamber;

[0007] Water quality testing was conducted on the wastewater inside the bioreactor to obtain the microbial content index of the wastewater;

[0008] Based on the wastewater volume and the microbial content index, calculate the theoretical value of the reactive gases in the wastewater;

[0009] Based on the volume of wastewater, input the biological bacterial solution in the specified ratio, and record the change in reaction pressure at the first preset time.

[0010] The theoretical value of the reaction gas is corrected based on the change in reaction gas pressure to obtain the amount of reaction gas in the bioreactor chamber;

[0011] The pressure threshold of the output valve of the bioreactor is set according to the amount of reaction gas.

[0012] Furthermore, recording the amount of wastewater injected into the bioreactor chamber and obtaining the volume of wastewater within the bioreactor chamber includes:

[0013] The flow rate of the wastewater during transport was obtained, and the duration of wastewater input into the bioreactor was recorded.

[0014] The sewage injection volume is calculated by combining the water flow velocity and the duration, and then converted into the first injection volume;

[0015] After the sewage is stopped being transported, the weight of the sewage in the bioreactor chamber is obtained by the gravity sensor based on the sewage, and the second injection volume of sewage is calculated based on the weight of the sewage.

[0016] The average value of the first injection volume and the second injection volume is calculated to obtain the wastewater volume in the bioreactor chamber.

[0017] Furthermore, the water quality testing of the wastewater within the bioreactor chamber to obtain the microbial content indicators of the wastewater includes:

[0018] Water quality samples are obtained by sampling wastewater within the microbial reaction chamber using probes.

[0019] Microbial dominant reactions are performed on water samples based on bioenzymes on probes, and water quality microbial content indicators are output based on the reaction results.

[0020] Furthermore, the step of conducting water quality testing on the wastewater within the bioreactor to obtain microbial content indicators also includes:

[0021] The acidity and alkalinity of water samples are detected by probe to obtain the acidity and alkalinity indicators of the water.

[0022] Furthermore, the calculation of the theoretical value of the reactive gas in the wastewater, combining the wastewater volume and the microbial content index, includes:

[0023] Based on the microbial content index, query the reaction time and amount of reaction gas generated per unit volume of wastewater;

[0024] The amount of gas generated after the wastewater reaction is calculated based on the wastewater volume, and the theoretical value of the reaction gas from the wastewater is obtained.

[0025] Furthermore, the step of inputting a biological bacterial solution with a specific ratio based on the wastewater volume and recording the change in reaction pressure over a first preset time includes:

[0026] Based on the microbial content index, several types of bacterial colonies are matched, and the mixing ratio of several types of bacterial colonies is configured.

[0027] Based on the wastewater volume and microbial content index, input a preset volume of biological bacteria solution;

[0028] The amount of reaction gas generated inside the bioreactor chamber is recorded within a first preset time period, and the change in reaction gas pressure is obtained.

[0029] Furthermore, the theoretical value of the reactant gas is corrected based on the change in reactant gas pressure to obtain the amount of reactant gas in the bioreactor chamber, including:

[0030] The reaction change rate of the wastewater in the bioreactor chamber is calculated based on the change in reaction gas pressure. The theoretical value of the reaction gas is then corrected based on the reaction change rate to obtain the amount of reaction gas in the bioreactor chamber.

[0031] The present invention also provides a greywater purification monitoring device, which is used to perform the greywater purification monitoring method. The monitoring device includes: a sewage input end, a biological reaction chamber, and a recovery component.

[0032] The wastewater input terminal is connected to the biological reaction chamber, and the biological reaction chamber is equipped with a water quality detection component for detecting wastewater quality.

[0033] A pressure-sensing valve is installed between the bioreactor and the recovery assembly.

[0034] Furthermore, a water flow detection component is provided at the connection position between the wastewater input end and the bioreactor chamber;

[0035] The flow velocity of the wastewater is obtained based on the water flow detection component.

[0036] Furthermore, a biological colony configuration component is provided at the top of the bioreactor chamber, which is used to configure the biological bacterial solution and input it into the bioreactor chamber.

[0037] This invention provides a wastewater purification monitoring method and treatment device. By real-time detection of the wastewater quality and volume entering the bioreactor chamber, the bio-bacterial solution is adjusted to improve the accuracy and reliability of wastewater purification. Furthermore, valve control is adjusted based on the amount of gas generated by the reaction between wastewater and bio-bacterial solution, ensuring complete reaction between the bio-bacterial solution and wastewater. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a flowchart of the greywater purification monitoring method according to an embodiment of the present invention;

[0040] Figure 2 This is a flowchart of a greywater treatment method according to an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the structure of the greywater purification treatment device according to an embodiment of the present invention. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example 1:

[0044] Figure 1 A flowchart of a greywater purification monitoring method according to an embodiment of the present invention is shown. The greywater purification monitoring method includes:

[0045] S11: Record the amount of wastewater injected into the bioreactor chamber, obtain the volume of wastewater in the bioreactor chamber, and calculate the amount of wastewater injected into the bioreactor chamber based on the injection time of the bioreactor chamber of the bioreactor chamber by real-time detection of the wastewater transport flow rate of the greywater purification device.

[0046] S12: Conduct water quality testing on the wastewater in the bioreactor to obtain the microbial content index of the wastewater.

[0047] A water quality detection component is installed inside the bioreactor chamber. Based on the water quality detection component, the wastewater inside the bioreactor chamber is quickly detected to obtain the water quality information. This allows for the adjustment of the ratio of the biological bacteria solution according to the water quality inside the bioreactor chamber, ensuring that the biological bacteria solution can fully react with the wastewater inside the bioreactor chamber and improving the reaction efficiency.

[0048] S13: Calculate the theoretical value of the reactive gas from the wastewater by combining the wastewater volume and the microbial content index.

[0049] Specifically, by obtaining the wastewater volume and microbial content index, the theoretical value of the reaction gas after the wastewater reacts with the microbial solution is calculated. When the wastewater reacts with the microbial solution, the bioreactor is configured as a closed space. Based on the theoretical value of the reaction gas of the wastewater, the pressure change inside the bioreactor can be estimated so as to adjust the reaction treatment time of the wastewater in the bioreactor according to the magnitude of the gas change inside the bioreactor.

[0050] S14: Input the biological bacterial solution in the specified ratio according to the wastewater volume, and record the change in reaction pressure at the first preset time.

[0051] Specifically, a stirring device is installed inside the bioreactor chamber to stir the wastewater inside the bioreactor chamber. The stirring device continuously stirs the wastewater, so that the wastewater and the biological bacteria solution can be fully mixed, thereby improving the reaction efficiency of the biological bacteria solution and the wastewater inside the bioreactor chamber.

[0052] A pressure sensor is installed inside the bioreactor chamber. After a first preset time, the pressure change inside the bioreactor chamber is obtained through the pressure sensor. Based on the pressure change, the actual reaction efficiency and reaction rate of the wastewater and the bioreactor solution inside the bioreactor chamber can be obtained, so that the wastewater treatment device can adjust the reaction treatment time of the wastewater in the bioreactor chamber according to the actual reaction between the bioreactor solution and the wastewater.

[0053] S15: Correct the theoretical value of the reaction gas according to the change in reaction gas pressure to obtain the amount of reaction gas in the biological reaction chamber.

[0054] The reaction rate change between the microbial solution and the wastewater is obtained by measuring the change in reaction gas pressure. The amount of reaction gas in the biological reaction chamber is obtained by verifying and calculating the reaction rate change value in combination with the theoretical value of the reaction gas.

[0055] S16: Set the gas pressure threshold of the output valve of the bioreactor chamber according to the amount of reaction gas.

[0056] By adjusting the pressure threshold of the reaction gas pressure change, the amount of reaction gas change is obtained.

[0057] This invention provides a method for monitoring wastewater purification. By real-time detection of the wastewater quality and volume entering the bioreactor chamber, the method adjusts the biological bacterial solution to improve the accuracy and reliability of wastewater purification. Furthermore, the method adjusts the valve based on the amount of gas generated by the reaction between the wastewater and the biological bacterial solution, ensuring that the biological bacterial solution and wastewater can react completely.

[0058] Example 2:

[0059] Figure 2 A flowchart of a greywater treatment method according to an embodiment of the present invention is shown;

[0060] S101: Obtain the flow velocity of the sewage.

[0061] The flow rate of the sewage is obtained by setting a flow meter at the connection between the sewage inlet and the bioreactor. The flow rate of the sewage is measured and recorded based on the flow meter.

[0062] Furthermore, a propeller velocity meter is installed inside the pipe at the sewage inlet. Based on the rotation of the propeller of the propeller velocity meter under the driving force of the sewage flow, the rotation speed of the propeller under the action of the sewage flow is obtained. The flow rate of the sewage flow can be calculated based on the propeller rotation speed of the propeller velocity meter.

[0063] Furthermore, the greywater purification treatment device stores the cross-sectional area of ​​the sewage conveying pipe, so as to calculate the amount of sewage entering the biological reaction chamber by combining the sewage conveying flow rate and sewage conveying time.

[0064] S102: Obtain the time when wastewater is injected into the reaction chamber.

[0065] The duration of wastewater input into the bioreactor chamber is recorded. An electric valve is installed at the connection between the wastewater input end and the bioreactor chamber. When the greywater purification treatment device inputs wastewater into the bioreactor chamber, the duration of the electric valve being open is recorded, and this duration is marked as the continuous wastewater delivery time into the bioreactor chamber.

[0066] Based on the time it takes for wastewater to be transported into the bioreactor, and combined with the flow rate of the wastewater, the amount of wastewater injected into the bioreactor can be calculated, so that the configuration of the microbial solution can be adjusted according to the wastewater volume in the bioreactor.

[0067] S103: Obtain the wastewater volume of the bioreactor chamber.

[0068] The sewage injection volume is calculated by combining the water flow velocity and the duration, and then converted into the first injection volume.

[0069] Specifically, the flow rate of wastewater being transported from the wastewater input end to the bioreactor chamber is obtained by using a flow meter, and the amount of wastewater injected into the bioreactor chamber is obtained by combining the cross-sectional area of ​​the wastewater transport and the duration of the wastewater transport.

[0070] The formula for calculating the first injection volume of the bioreactor chamber is:

[0071] V1 = t1 * v1 * s1;

[0072] Where V1 is the first injection volume, t1 is the continuous injection time of sewage, v1 is the sewage flow velocity, and s1 is the cross-sectional area of ​​the sewage transport.

[0073] Furthermore, the continuous sewage injection time is the standard water injection time set inside the greywater purification treatment device, so that the sewage input end can continuously input a preset amount of sewage into the bioreactor chamber, so that the sewage inside the bioreactor chamber can undergo microbial reaction treatment.

[0074] After the sewage is stopped being transported, the weight of the sewage in the bioreactor chamber is obtained by the gravity sensor based on the sewage, and the second injection volume of sewage is calculated based on the weight of the sewage.

[0075] When the wastewater input terminal stops inputting wastewater into the bioreactor chamber, the gravity sensor inside the wastewater bioreactor chamber acquires the pressure exerted by the wastewater liquid on the bottom of the bioreactor chamber and outputs the weight of the wastewater inside the bioreactor chamber.

[0076] Since the wastewater is domestic sewage, its water density is approximately 1 g / cm³. 3 By combining the weight of the wastewater, the volume of the wastewater inside the bioreactor can be calculated, thereby obtaining the second injection volume:

[0077] V2 = m / ρ;

[0078] Where V2 is the second injection volume, m is the weight of the wastewater inside the bioreactor, and ρ is the density of the wastewater, ρ = 1 g / cm³. 3 .

[0079] The average value of the first injection volume and the second injection volume is calculated to obtain the wastewater volume in the bioreactor chamber. By calculating the average value of the first injection volume and the second injection volume and taking the average value of the first injection volume and the second injection volume as the wastewater volume of the bioreactor chamber, the accuracy of the calculation of the gas change inside the bioreactor chamber can be improved, thereby improving the purification effect of the bioreactor chamber on the wastewater.

[0080] S104: Detect the wastewater quality in the bioreactor chamber.

[0081] Specifically, a water quality detection component is installed inside the bioreactor chamber to quickly detect the water quality of the wastewater entering the bioreactor chamber, so as to prepare the corresponding microbial solution according to the water quality of the wastewater in the bioreactor chamber.

[0082] Specifically, a sampling probe is used to sample wastewater within the microbial reaction chamber to obtain a water quality sample. A sampling probe containing a test solution is installed inside the bioreactor. The probe draws up the wastewater sample from the bioreactor and brings it into contact with the test solution, allowing the microorganisms in the wastewater sample to react with the enzymes in the test solution. The water quality within the bioreactor is then determined based on the reaction results.

[0083] Based on the bio-enzymes on the probe, a microbial overt reaction is performed on the water sample. The microbial content index of the water is output according to the reaction results. By reacting and binding or adsorbing with microbial metabolites, enzyme activity, cell walls and other characteristics of the fluorescent enzyme probe, the quantitative detection of microorganisms in the sample sewage can be achieved. Based on the reaction between the fluorescent enzyme and the microorganisms in the sewage, and by the intensity of the light color after the reaction, the overt detection of the sewage water quality is achieved. This enables the water quality detection component to effectively detect the water quality of the sewage inside the bioreactor chamber.

[0084] Specifically, the acidity and alkalinity of water samples are detected using a probe to obtain acidity and alkalinity indicators. Phenolphthalein test paper is placed on the probe, and the acidity and alkalinity of the wastewater samples obtained by the probe are tested based on the phenolphthalein test paper to obtain the acidity and alkalinity of the wastewater inside the bioreactor. A corresponding microbial solution is prepared according to the acidity and alkalinity of the wastewater in the bioreactor so that the microbial solution can fully react and decompose the wastewater inside the bioreactor, thereby achieving the purification treatment of wastewater.

[0085] Furthermore, the wastewater is tested by the water quality detection component inside the bioreactor chamber. By obtaining the microbial content index of the wastewater and considering the acidity and alkalinity of the wastewater, biological colonies corresponding to the active environment are selected. Several kinds of biological colonies are also prepared according to the water quality of the wastewater inside the bioreactor chamber, so that the biological bacterial solution can efficiently decompose and purify the wastewater according to the microbial index, thereby further improving the effect of greywater purification treatment.

[0086] S105: Prepare a biological bacterial solution.

[0087] Based on the microbial content index, several types of bacterial colonies are matched, and the mixing ratio of several types of bacterial colonies is configured.

[0088] Specifically, based on the detection results of the wastewater inside the bioreactor chamber by the water quality detection component, the microbial index content of the wastewater is output. According to the microbial species in the biological wastewater, corresponding detection enzymes are configured in the greywater purification treatment device, enabling the water quality detection component of the bioreactor chamber to identify the microbial species in the wastewater. Based on the degree of colorimetric reaction between the corresponding microorganisms and the enzymes, the content of various microbial species in the wastewater inside the bioreactor chamber is obtained, i.e., the microbial content index of the wastewater in the bioreactor chamber is obtained.

[0089] Furthermore, based on the microbial content index of the water quality detection component, the greywater purification device can configure the corresponding microbial colonies for purification treatment according to the microbial content index, thereby configuring a microbial solution that meets the requirements of greywater purification treatment.

[0090] Furthermore, the microbial indicators in the wastewater include bacteria, Escherichia coli, Salmonella, Shigella, Vibrio cholerae, and activated sludge protozoa such as scale insects and spiny tails.

[0091] S106: Adjust the amount of biological bacteria solution added.

[0092] Based on the wastewater volume and microbial content index, a preset volume of biological bacterial solution is input. Based on the wastewater volume inside the bioreactor chamber, the configuration ratio of wastewater to biological bacterial solution is set to 10:1. The biological bacterial solution is input into the bioreactor chamber according to the configuration ratio, and the mixture of microbial solution and wastewater is continuously stirred to ensure that the microbial bacterial solution and wastewater can react fully.

[0093] The amount of reaction gas generated inside the bioreactor chamber is recorded within a first preset time period, and the change in reaction gas pressure is obtained.

[0094] The wastewater inside the bioreactor chamber is reacted with a microbial solution. After a first preset time, the amount of reaction gas generated inside the bioreactor chamber is obtained. The reaction efficiency between the prepared microbial solution and the wastewater is obtained based on the amount of gas generated after the reaction.

[0095] S107: Calculate the theoretical value of the reacting gas.

[0096] Based on the microbial content index, query the reaction time and amount of reaction gas generated per unit volume of wastewater;

[0097] The amount of gas generated after the wastewater reaction is calculated based on the wastewater volume, and the theoretical value of the reaction gas from the wastewater is obtained.

[0098] Based on the general chemical reaction formula of the anaerobic digestion process of organic matter, the gas production per unit mass of various microbial indicators can be calculated. Based on the reaction relationship between the microbial solution and the volume of wastewater in the bioreactor, the amount of gas generated after complete reaction between the wastewater and the microbial solution at that wastewater volume can be calculated. Since the organic composition of domestic sewage is complex, the gas production after complete reaction between the wastewater and the microbial solution at that wastewater volume can be calculated based on the COD (Chemical Oxygen Demand) value.

[0099] Furthermore, based on the theoretical value of the reaction gas after the wastewater reaction, combined with the initial gas pressure in the closed state of the bioreactor chamber, the theoretical change value of the gas pressure inside the bioreactor chamber can be obtained.

[0100] S108: Obtain the actual change in the reacting gas.

[0101] The reaction change rate of the wastewater in the bioreactor chamber is calculated based on the change in reaction gas pressure. The change in reaction gas in the bioreactor chamber within a first preset time period is obtained based on the gas pressure sensor inside the bioreactor chamber, thereby obtaining the gas pressure change rate of the bioreactor chamber within the first preset time period.

[0102] Specifically, the first preset time is divided into several unit time segments, and the air pressure detection data for each unit time is obtained based on the air pressure sensor inside the bioreactor chamber, thereby obtaining the rate of change of the air pressure data inside the bioreactor chamber.

[0103] The formula for calculating the rate of change of air pressure during the microbial decomposition reaction within the first preset time period is:

[0104]

[0105] Where ΔP is the change in air pressure per unit time, and Δt is the unit time, t i+1 For time i+1, t i For time i, P i+1 Let P be the air pressure value at time i+1. i Let be the air pressure value at time i.

[0106] Furthermore, within the first preset time period, several segments of air pressure change rate corresponding to a unit time are obtained, and based on the changing trend of the several segments of air pressure change rate, the change rate of air pressure data in the bioreactor is obtained.

[0107] Furthermore, the first preset time is set based on the detection data of the air pressure sensor inside the bioreactor chamber. When the change in the air pressure sensor value tends to be gradual, the current time period is marked as the first preset time, and the air pressure data inside the bioreactor chamber is analyzed and calculated.

[0108] S109: Correction to the theoretical value of the reactant gas.

[0109] The theoretical value of the reaction gas is corrected based on the rate of change of reaction to obtain the amount of reaction gas in the bioreactor.

[0110] The stable value of the pressure change rate per unit time is obtained based on the changing trend of several segments of pressure change rate, and the stable value of the pressure change rate is used as a basis.

[0111] The volume of reacting gas is calculated based on the pressure change value inside the bioreactor chamber within the first preset time period, and the wastewater reaction volume is converted. The volume of wastewater to be reacted is obtained by calculating the difference between the wastewater volume and the wastewater reaction volume. Combined with the stable value of the pressure change rate, the volume of gas to be generated in the bioreactor chamber is calculated. Based on the volume of gas to be generated and the volume of reacting gas, the approximate amount of reacting gas in the bioreactor chamber is obtained. The approximate amount of reacting gas is compared with the theoretical value of reacting gas. If the approximate amount of reacting gas is greater than the theoretical value of reacting gas, then the approximate amount of reacting gas is marked as the amount of reacting gas in the bioreactor chamber.

[0112] If the approximate amount of reactant gas is less than the theoretical value, then the theoretical value is marked as the amount of reactant gas within the bioreactor chamber. This ensures complete reaction between the wastewater and the microbial solution inside the bioreactor chamber.

[0113] S110: Set the gas pressure threshold for the bioreactor chamber valve.

[0114] The change in gas pressure inside the bioreactor chamber is calculated based on the amount of reacting gas inside the chamber, and the change in gas pressure is set as the gas pressure threshold of the bioreactor chamber valve. When the internal gas pressure of the bioreactor chamber reaches the gas pressure threshold, the valve of the bioreactor chamber can be automatically opened to deliver the purified water.

[0115] This invention provides a method for treating greywater. By real-time monitoring of the wastewater quality and volume entering the bioreactor chamber, the method adjusts the biological bacterial solution to improve the accuracy and reliability of wastewater purification. Furthermore, by adjusting the valves based on the amount of gas generated from the reaction between the wastewater and the biological bacterial solution, the method ensures complete reaction between the biological bacterial solution and the wastewater, thereby improving the reliability of greywater treatment.

[0116] Example 3:

[0117] Figure 3 A schematic diagram of the structure of a greywater purification treatment device according to an embodiment of the present invention is shown. The greywater purification treatment device is used to perform the greywater purification monitoring method. The greywater purification treatment device includes: a sewage input end 1, a biological reaction chamber 5, and a recovery component. The sewage input end 1 is provided with a plurality of filtration devices. Based on the plurality of filtration devices, impurities are filtered from domestic sewage to reduce water debris in the domestic sewage, so as to carry out microbial decomposition and purification treatment of the domestic sewage.

[0118] The wastewater input terminal 1 is connected to the bioreactor 5. The bioreactor 5 is equipped with a water quality detection component for detecting wastewater quality. Based on the detection results of the wastewater inside the bioreactor 5 by the water quality detection component, the microbial index content of the wastewater is output. According to the microbial species in the biological wastewater, corresponding detection enzymes are configured in the greywater purification treatment device, enabling the water quality detection component in the bioreactor 5 to identify the microbial species in the wastewater. Based on the degree of colorimetric reaction between the corresponding microorganisms and the enzymes, the content of various microbial species in the wastewater inside the bioreactor 5 is obtained, i.e., the microbial content index of the wastewater in the bioreactor 5 is obtained.

[0119] Furthermore, a water flow detection component 2 is provided at the connection position between the sewage input end 1 and the bioreactor 5 to obtain the sewage flow velocity. The water flow detection component 2 is configured as a flow velocity meter, which measures and records the sewage transport flow velocity.

[0120] Furthermore, a propeller velocity meter is installed inside the pipe at the sewage inlet 1. Based on the rotation of the propeller of the propeller velocity meter under the driving force of the sewage flow, the rotation speed of the propeller under the action of the sewage flow is obtained. The flow rate of the sewage flow can be calculated based on the rotation speed of the propeller of the propeller velocity meter.

[0121] The wastewater injection volume into the bioreactor 5 is recorded, and the wastewater volume inside the bioreactor 5 is obtained. The wastewater transport flow rate of the greywater purification device is detected in real time, and the wastewater injection volume inside the bioreactor 5 is calculated based on the injection time of the bioreactor 5.

[0122] Furthermore, an electronic valve 3 is provided between the water flow detection component 2 and the bioreactor 5, and the sewage transport between the sewage input end 1 and the bioreactor 5 can be controlled based on the electronic valve 3.

[0123] Specifically, a biological colony configuration component 4 is provided on the top of the bioreactor 5. The biological colony configuration component 4 is used to configure the biological bacterial solution and input it into the bioreactor 5.

[0124] The water quality detection component is installed inside the bioreactor 5. Based on the water quality detection component, the sewage inside the bioreactor 5 is quickly detected to obtain the water quality of the sewage inside the bioreactor 5. In order to adjust the ratio of the biological bacteria solution according to the water quality inside the bioreactor 5, the biological bacteria solution can fully react with the sewage inside the bioreactor 5 and improve the reaction efficiency.

[0125] Specifically, by obtaining the wastewater volume and microbial content index, the theoretical value of the reaction gas after the wastewater reacts with the microbial solution is calculated. When the wastewater reacts with the microbial solution, the bioreactor 5 is configured as a closed space. Based on the theoretical value of the reaction gas of the wastewater, the gas pressure change inside the bioreactor 5 can be estimated so as to adjust the reaction treatment time of the wastewater in the bioreactor 5 according to the gas change amplitude inside the bioreactor 5.

[0126] A pressure sensing valve 6 is provided between the bioreactor 5 and the recovery component. A biological bacterial solution of a certain proportion is input according to the wastewater volume, and the change in reaction gas pressure at a first preset time is recorded. The theoretical value of the reaction gas is corrected according to the change in reaction gas pressure to obtain the amount of reaction gas in the bioreactor 5.

[0127] The reaction rate change between the microbial solution and the wastewater is obtained by measuring the change in reaction gas pressure. Based on the reaction rate change value and the theoretical value of the reaction gas, the amount of reaction gas in the biological reaction chamber 5 is obtained through verification calculation.

[0128] The pressure threshold of the pressure sensing valve 6 in the bioreactor 5 is set according to the amount of reaction gas. When the internal pressure of the bioreactor 5 reaches the pressure threshold, the valve of the bioreactor 5 can be automatically opened to deliver the purified water. This allows the purified water to be used for daily operation after subsequent filtration processes, thus realizing the recycling of water.

[0129] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0130] Furthermore, the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for monitoring greywater purification, characterized in that, The greywater purification monitoring method includes: Record the amount of wastewater injected into the bioreactor chamber to obtain the volume of wastewater inside the bioreactor chamber; Water quality testing was conducted on the wastewater inside the bioreactor to obtain the microbial content index of the wastewater; Based on the wastewater volume and the microbial content index, calculate the theoretical value of the reactive gases in the wastewater; Based on the volume of wastewater, input the biological bacterial solution in the specified ratio, and record the change in reaction pressure at the first preset time. The theoretical value of the reaction gas is corrected based on the change in reaction gas pressure to obtain the amount of reaction gas in the bioreactor chamber; The gas pressure threshold of the output valve of the bioreactor chamber is set according to the amount of reaction gas. The correction steps for the theoretical value of the reactive gas are as follows: The stable value of the rate of change of air pressure per unit time is obtained based on the changing trend of the rate of change of air pressure in several segments, and the stable value of the rate of change of air pressure is obtained. The volume of reacting gas is calculated based on the change in internal gas pressure within the bioreactor chamber during the first preset time period, and the volume of wastewater reacting is converted. The volume of wastewater to be reacted is obtained by subtracting the wastewater volume from the wastewater reaction volume. Combined with the stable value of the gas pressure change rate, the volume of gas to be generated within the bioreactor chamber is calculated. Based on the volume of gas to be generated and the volume of reacting gas, the approximate amount of reacting gas in the bioreactor chamber is obtained. The approximate amount of reacting gas is compared with the theoretical value of reacting gas. If the approximate amount of reacting gas is greater than the theoretical value of reacting gas, then the approximate amount of reacting gas is marked as the amount of reacting gas in the bioreactor chamber. If the approximate amount of reactant gas is less than the theoretical value of reactant gas, then the theoretical value of reactant gas is marked as the amount of reactant gas in the biological reaction chamber.

2. The greywater purification monitoring method as described in claim 1, characterized in that, The process of recording the amount of wastewater injected into the bioreactor chamber and obtaining the volume of wastewater within the bioreactor chamber includes: The flow rate of the wastewater during transport was obtained, and the duration of wastewater input into the bioreactor was recorded. The sewage injection volume is calculated by combining the water flow velocity and the duration, and then converted into the first injection volume; After the sewage is stopped being transported, the weight of the sewage in the bioreactor chamber is obtained by the gravity sensor based on the sewage, and the second injection volume of sewage is calculated based on the weight of the sewage. The average value of the first injection volume and the second injection volume is calculated to obtain the wastewater volume in the bioreactor chamber.

3. The greywater purification monitoring method as described in claim 1, characterized in that, The process of testing the wastewater within the bioreactor to obtain microbial content indicators includes: Water quality samples are obtained by sampling wastewater within the microbial reaction chamber using probes. Microbial dominant reactions are performed on water samples based on bioenzymes on probes, and water quality microbial content indicators are output based on the reaction results.

4. The greywater purification monitoring method as described in claim 3, characterized in that, The process of conducting water quality testing on the wastewater within the bioreactor to obtain microbial content indicators also includes: The acidity and alkalinity of water samples are detected by probe to obtain the acidity and alkalinity indicators of the water.

5. The greywater purification monitoring method as described in claim 1, characterized in that, The calculation of the theoretical value of the reactive gas in the wastewater, combining the wastewater volume and the microbial content index, includes: Based on the microbial content index, query the reaction time and amount of reaction gas generated per unit volume of wastewater; The amount of gas generated after the wastewater reaction is calculated based on the wastewater volume, and the theoretical value of the reaction gas from the wastewater is obtained.

6. The greywater purification monitoring method as described in claim 1, characterized in that, The step of inputting a biological bacterial solution in a specified ratio according to the wastewater volume and recording the change in reaction pressure over a first preset time includes: Based on the microbial content index, several types of bacterial colonies are matched, and the mixing ratio of several types of bacterial colonies is configured. Based on the wastewater volume and microbial content index, input a preset volume of biological bacteria solution; The amount of reaction gas generated inside the bioreactor chamber is recorded within a first preset time period, and the change in reaction gas pressure is obtained.

7. The greywater purification monitoring method as described in claim 1, characterized in that, The theoretical value of the reactant gas is corrected based on the change in reactant gas pressure to obtain the amount of reactant gas in the bioreactor chamber, including: The reaction change rate of the wastewater in the bioreactor chamber is calculated based on the change in reaction gas pressure. The theoretical value of the reaction gas is then corrected based on the reaction change rate to obtain the amount of reaction gas in the bioreactor chamber.

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