CN113072195A - Sponge urban rainwater purification system - Google Patents
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- CN113072195A CN113072195A CN202110333120.3A CN202110333120A CN113072195A CN 113072195 A CN113072195 A CN 113072195A CN 202110333120 A CN202110333120 A CN 202110333120A CN 113072195 A CN113072195 A CN 113072195A
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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Abstract
The invention provides a sponge urban rainwater purification system, belongs to the technical field of water purification, and comprises a first substance and a first microorganism for decomposing the first substance. Multiple first substance solutions with the same volume and different concentrations are prepared. The time until the concentration of the first substance in the plurality of first substance solutions reaches a preset standard is determined, and a first graph is fitted according to the concentrations of the plurality of first substance solutions and the time required for decomposing the same to the preset standard. The concentration of the first substance and the concentration of the second substance in the sewage are detected, respectively, and the sewage is discharged when the maximum value of the first time and the second time is reached. The sponge urban rainwater purification system provided by the invention can determine the time required for decomposing the first substance and the second substance in the sewage only by carrying out one-time detection on the sewage, thereby greatly reducing the sewage treatment time, reducing the times of detecting the substances and finally improving the whole sewage treatment efficiency.
Description
Technical Field
The invention belongs to the technical field of water purification, and particularly relates to a sponge urban rainwater purification system.
Background
In the prior art, specific substances in sewage are decomposed by microorganisms, but because the types of the substances in the sewage are more and the time required for decomposing each substance is different, a plurality of microorganism decomposing tanks are arranged to treat the sewage together. When the microorganism decomposes the specific substance to a preset standard, the specific substance can be discharged, and in general, the sewage is detected for multiple times until the specific substance meets the requirement, so that the whole sewage purification process needs to be detected for multiple times, time and labor are wasted, and the whole detection efficiency is low.
Disclosure of Invention
The invention aims to provide a sponge urban rainwater purification system, and aims to solve the problems that multiple detections are needed in the whole sewage purification process, time and labor are wasted, and the whole detection efficiency is low.
In order to achieve the purpose, the invention adopts the technical scheme that: provide sponge city rainwater clean system, include:
determining a first substance and a first microorganism for decomposing the first substance, and preparing a first microorganism solution with a specific concentration;
dissolving different amounts of the first substance to prepare multiple first substance solutions with the same volume and different concentrations; adding a quantitative amount of the first microorganism solution to a plurality of portions of the first substance solution, respectively;
determining the time of the concentrations of the first substances in a plurality of first substance solutions until a preset standard is reached, and fitting a first curve chart according to the concentrations of the first substance solutions and the time required for decomposing the first substance solutions to the preset standard;
determining the concentration of the second substance solution according to the first curve graph and fitting a second curve graph according to the time required for decomposing the concentration of the second substance solution to a preset standard;
respectively detecting the concentration of the first substance and the concentration of the second substance in the sewage, determining a first time and a second time required for decomposing the first substance and the second substance in the first graph and the second graph, and selecting the maximum value of the two times as a target time;
and respectively adding the sewage into the first microbial solution and the second microbial solution for decomposing the second substance, and discharging the sewage when the target time is reached.
As another embodiment of the present application, the adding the contaminated water to the first microbial solution and the second microbial solution for decomposing the second substance, respectively, comprises:
the second microbial solution configured to decompose the second substance;
respectively arranging a first attachment and a second attachment for adsorbing the first microorganism and the second microorganism in a first decomposition tank and a second decomposition tank;
and circulating sewage through the first attachment and the second attachment.
As another embodiment of the present application, the circulating sewage through the first and second attachments includes:
respectively communicating a first water storage tank storing sewage with the first decomposition tank and the second decomposition tank through communicating pipes;
enabling the sewage flowing through the first attachment and the second attachment to flow back to the first water storage tank through the communicating pipe;
and controlling the communication or the interruption between the first water storage tank and the first decomposition tank and the second decomposition tank through a valve on the communicating pipe.
As another embodiment of the present application, the adding the contaminated water to the first microbial solution and the second microbial solution for decomposing the second substance, respectively, comprises:
determining an Nth substance and decomposing the Nth substance to an Nth curve graph corresponding to a preset standard;
detecting the concentrations of a first substance, a second substance to an Nth substance in the sewage, and determining and sequencing the first time, the second time to the Nth time in the first graph, the second graph to the Nth graph;
setting an Nth decomposition tank and an Nth attachment for adsorbing the Nth substance;
and sequentially interrupting the corresponding decomposers and the first water storage tank according to the sequencing order.
As another embodiment of the present application, the adding the contaminated water to the first microbial solution and the second microbial solution for decomposing the second substance, respectively, comprises:
arranging an Mth water storage tank, and communicating the first water storage tank to the Mth water storage tank with the first decomposition tank, the second decomposition tank to the Nth decomposition tank; arranging a plurality of water storage tanks in sequence;
when one decomposition tank is interrupted with one water storage tank, the decomposition tank is communicated with the next water storage tank after being cleaned and added with corresponding microorganism solution.
As another embodiment of the present application, said discharging the contaminated water when the target time is reached comprises:
timing is started when sewage flows into the first decomposition tank and the second decomposition tank respectively;
and when the smaller of the first time and the second time is reached, the corresponding decomposition tank and the first water storage tank are interrupted.
As another embodiment of the present application, after the disconnecting the corresponding decomposition tank from the water storage tank, the method further includes:
the deposits in the interrupted decomposition tank are cleaned by distilled water.
As another embodiment of the present application, the adding the contaminated water to the first microbial solution and the second microbial solution for decomposing the second substance, respectively, comprises:
the first microbial solution and the second microbial solution are continuously added to the first attachment and the second attachment, respectively, for a certain time.
As another embodiment of the present application, the adding the contaminated water to the first microbial solution and the second microbial solution for decomposing the second substance, respectively, comprises:
maintaining both said first attachment and said second attachment at a temperature suitable for incubation of said first microorganism and said second microorganism during decomposition.
The sponge urban rainwater purification system provided by the invention has the beneficial effects that: compared with the prior art, the sponge urban rainwater purification system is firstly provided with the first microorganism solution with specific concentration, in order to fit an accurate first curve graph, different amounts of the first substance are required to be dissolved, and the quantitative first microorganism solution is respectively added into a plurality of first substance solutions, so that the first curve graphs of different concentrations and required time of the first substance can be obtained due to different time required for decomposing different amounts of the first substance to the preset standard, and the second curve graph related to the second substance can be obtained according to the method.
In practical application, according to the concentrations of a first substance and a second substance in sewage, the first time and the second time which are needed can be respectively obtained in the first graph and the second graph, then the sewage is respectively introduced into the first microbial solution and the second microbial solution, when the maximum value of the first time and the second time is reached, the first substance and the second substance can be shown to be decomposed to be below a preset standard and the preset standard, and the sewage can be discharged at the moment. In this application, only need carry out once to sewage and detect and can determine and decompose the time that first material and second material are required in this sewage, very big reduction sewage treatment's time, reduced the number of times that detects the material, finally improved whole sewage treatment's efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flow chart of a sponge urban rainwater purification system provided by an embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a sponge urban rainwater purification system according to the present invention will now be described. Sponge city rainwater clean system includes:
determining a first substance and a first microorganism for decomposing the first substance, and preparing a first microorganism solution with a specific concentration.
Dissolving different amounts of first substances to prepare multiple first substance solutions with the same volume and different concentrations; a quantitative amount of the first microorganism solution is added to a plurality of first substance solutions, respectively.
The time until the concentration of the first substance in the plurality of first substance solutions reaches a preset standard is determined, and a first graph is fitted according to the concentrations of the plurality of first substance solutions and the time required for decomposing the same to the preset standard.
And determining the concentration of the second substance solution according to the first graph, and fitting a second graph according to the time required for decomposing the concentration of the second substance solution to a preset standard.
The concentration of a first substance and the concentration of a second substance in the sewage are detected respectively, a first time and a second time required for decomposing the first substance and the second substance are determined in a first graph and a second graph, and the maximum value of the two times is selected as a target time.
Adding the sewage to the first microbial solution and the second microbial solution for decomposing the second substance, respectively, and discharging the sewage when the target time is reached.
The sponge urban rainwater purification system provided by the invention has the beneficial effects that: compared with the prior art, the sponge urban rainwater purification system is firstly provided with the first microorganism solution with specific concentration, in order to fit an accurate first curve graph, different amounts of the first substance are required to be dissolved, and the quantitative first microorganism solution is respectively added into a plurality of first substance solutions, so that the first curve graphs of different concentrations and required time of the first substance can be obtained due to different time required for decomposing different amounts of the first substance to the preset standard, and the second curve graph related to the second substance can be obtained according to the method.
In practical application, according to the concentrations of a first substance and a second substance in sewage, the first time and the second time which are needed can be respectively obtained in the first graph and the second graph, then the sewage is respectively introduced into the first microbial solution and the second microbial solution, when the maximum value of the first time and the second time is reached, the first substance and the second substance can be shown to be decomposed to be below a preset standard and the preset standard, and the sewage can be discharged at the moment. In this application, only need carry out once to sewage and detect and can determine and decompose the time that first material and second material are required in this sewage, very big reduction sewage treatment's time, reduced the number of times that detects the material, finally improved whole sewage treatment's efficiency.
In order to ensure the accuracy of the experiment, the microbial solution needs to be in a fixed volume and concentration when being mixed with the sewage. To illustrate in more detail, taking the first substance as an example, the first microbial solution needs to be mixed with the first substance solution when determining the first graph, and the concentration and the volume of the first microbial solution are both determined and fixed values. When mixing the first microbial solution with the wastewater, it is necessary to ensure that the concentration and volume of the first microbial solution added to the wastewater are the same as when the first graph is fitted. Meanwhile, the volume of the first substance solution is the same as that of the treated sewage, so that the accuracy of final data is ensured.
For convenience of operation, the first microbial solution and the second microbial solution may be provided in multiple portions having the same concentration and volume, and the sewage may be introduced into the first water storage tank, thereby ensuring that the volume and environment of the sewage treated each time are the same.
As a specific embodiment of the sponge urban rainwater purification system provided by the present invention, adding sewage into the first microbial solution and the second microbial solution for decomposing the second substance respectively comprises:
a second microbial solution configured to decompose a second substance.
A first attachment and a second attachment for adsorbing a first microorganism and a second microorganism are provided in the first decomposition tank and the second decomposition tank, respectively.
And circulating the sewage through the first attachment and the second attachment.
Since the first microorganism solution and the second microorganism solution are directly added to the sewage, although the number of operation steps is reduced, since the required environments are different between microorganisms, for example, aerobic and anaerobic microorganisms cannot be effectively cultured in the same environment, it is necessary to place each microorganism in a separate decomposition tank, and in order that the microorganisms do not flow along with the circulation of the sewage, a specific attachment for adsorbing the microorganisms is provided in each decomposition tank.
The zeolite has strong selective adsorption to ammonium nitrogen, can quickly retain the ammonium nitrogen in water, but cannot be used as a final path for removing the ammonium nitrogen, and is an ideal microbial carrier due to the huge specific surface area, so that ammoniating bacteria and nitrifying bacteria are fixed in the zeolite to further remove the ammonium nitrogen in practical application. The sepiolite wool is flocculent and belongs to phyllosilicate, and the total surface area of the sepiolite is 800-900 m calculated according to the structural model of Brown and Prisinge2Per g, internal surface area 500m2Per g, external surface area 400m2The water content of the sepiolite can reach 200-250% of the self weight at most, so that the hydraulic retention and the retention time are prolonged, the purification treatment procedure is prolonged, and the purification efficiency of biochemical reaction is improved. The zeolite has a particle size of 3-6 mm and boilsThe mixing ratio of the stone to the sepiolite wool is 1: microorganisms are attached to the surfaces of the zeolite, and the main purposes are to remove phosphorus in a water body and convert ammonia nitrogen in the water into nitrate substances for subsequent treatment. The particle size of the gravel is 5-20 mm; the gravel can stabilize the layer structure and play a role in adsorption and filtration, and further accelerate the nitrate nitrogen to rapidly enter a plurality of upper-layer ceramic grains.
The corresponding microbial community in this case comprises ammoniating bacteria and nitrifying bacteria. The main purposes of setting corresponding strains are to remove water P and convert N element in water into NO3-class N; in the course of purification treatment, ammoniated bacteria and nitrobacteria are formed as dominant microbial community, and the organic nitrogen is firstly converted into ammonia nitrogen NH by means of ammoniated bacteria4N and fixed by zeolites and subsequently converted again by nitrifying bacteria into nitrate nitrogen NO3N, nitrate nitrogen does not participate in any reaction at this stage.
As a specific embodiment of the sponge urban rainwater purification system provided by the invention, the circulating sewage through the first attachment and the second attachment comprises:
the first water storage tank storing the sewage is respectively communicated with the first decomposition tank and the second decomposition tank through communicating pipes.
And the sewage flowing through the first attachment and the second attachment flows back to the first water storage tank through the communicating pipe.
And the connection or disconnection between the first water storage tank and the first decomposition tank and between the first water storage tank and the second decomposition tank is controlled by a valve on the communicating pipe.
The main objective of this application lies in improving the treatment effeciency to whole sewage, reduces the material and detects the number of times and then reduce the acquisition cost, in order to carry out the quantization processing with sewage, other control factor all are in under a same state when needing to guarantee decomposing at every turn. Therefore, sewage can be fed into the water storage tank in batches, the volume of the sewage in the water storage tank is the same every time, a plurality of decomposition tanks are arranged according to the relevant data of local sewage, and attachments for attaching and cultivating microorganisms are arranged in each decomposition tank.
If the first microorganism is aerobic microorganism, a bubble generating device is arranged in the bottom of the first decomposition tank, if the second microorganism is anaerobic microorganism, a closed environment is arranged in the second decomposition tank, and when the oxygen content in the sewage is high, a heating device or a feeding device can be arranged on the water inlet side of the second decomposition tank, and a chemical reagent for reducing the oxygen content, such as sodium sulfite and the like, is added into the sewage by a physical heating method or directly through the feeding device to reduce the oxygen content.
Sewage is shunted and flows into a plurality of decomposers respectively, so communicating pipes need to be arranged between the water storage tanks storing the sewage and the decomposers, each communicating pipe is communicated with a valve, a return pipe is arranged between the bottom of each decomposer and the water storage tank, and a circulating and closed loop is formed by the communicating pipes and the return pipes.
Because only the water storage tank is communicated with one decomposing tank when the first curve graph and the second curve graph are fitted, and the water storage tank is communicated with a plurality of decomposing tanks when the decomposing tanks are actually decomposed, the flow rates of water flows introduced into the decomposing tanks need to be kept equal in order to ensure the referential performance of results.
As a specific embodiment of the sponge urban rainwater purification system provided by the present invention, adding sewage into the first microbial solution and the second microbial solution for decomposing the second substance respectively comprises:
and determining an Nth substance and decomposing the concentration of the Nth substance solution to an Nth curve corresponding to a preset standard.
And detecting the concentrations of the first substance, the second substance to the Nth substance in the sewage, and determining and sequencing the first time, the second time to the Nth time in the first graph, the second graph to the Nth graph.
An Nth decomposition tank and an Nth attachment for adsorbing the Nth substance are provided.
And (4) sequentially interrupting the corresponding decomposers and the first water storage tank according to the sequencing order.
Because the variety of the materials rich in the sewage is more, in order to reach the discharge standard, a plurality of materials need to be decomposed, so before the sewage is actually decomposed, a plurality of graphs of the materials need to be determined respectively, and each graph reflects the time required for decomposing the materials to the preset standard. When detecting sewage, can confirm first time, second time through a plurality of graphs until the Nth time, arrange these times in an order, begin when sewage lets in a plurality of decomposers simultaneously, isolate and carry out corresponding clearance with corresponding decomposer when reaching minimum time, carry out the purification of next water storage tank sewage promptly after the clearance is accomplished.
As a specific embodiment of the sponge urban rainwater purification system provided by the present invention, adding sewage into the first microbial solution and the second microbial solution for decomposing the second substance respectively comprises:
arranging an Mth water storage tank, and communicating the first water storage tank to the Mth water storage tank with the first decomposition tank, the second decomposition tank to the Nth decomposition tank; the plurality of water storage tanks are arranged in sequence.
When one decomposition tank is interrupted with one water storage tank, the decomposition tank is communicated with the next water storage tank after being cleaned and added with corresponding microorganism solution.
In order to increase the efficiency of the sewage and the accuracy of the final result, it is necessary that the amount of sewage per circulation is equal. Because in this application if once the sewage volume that needs to handle when great, in order to guarantee the accuracy of final treatment result, need carry out equally dividing with the voluminous sewage to every sewage needs to be handled by a plurality of decomposers jointly, and the rate that specific material in every decomposer decomposes sewage is different, will have certain decomposers to handle in advance and accomplish and be kept apart certainly. If only set up a water storage tank, need make a plurality of decomposers all can discharge the water in the water storage tank after accomplishing sewage treatment, and the decomposer that has been isolated before needs wait for certain time can just handle sewage again, and this just leads to the decomposer utilization ratio not high.
Therefore, the number of the water storage tanks arranged in the application is multiple, the multiple water storage tanks are communicated with the multiple decomposition tanks, when the device is in actual use, the water storage tanks are numbered firstly, sewage in the first water storage tank is introduced into the multiple decomposition tanks, and when a certain decomposition tank decomposes the concentration of a specific substance to a preset standard, the decomposition tank is cleaned, so that the accumulation of harmful impurities is avoided, and the accuracy of treatment time is ensured. After the inner wall of the decomposition tank and the attachments in the cavity are cleaned, the decomposition tank is communicated with the second water storage tank, and when sewage in the second water storage tank enters the cleaned decomposition tank, matched microbial solution is introduced into the decomposition tank, so that the sewage in the second water storage tank is treated. Through the design, the utilization rate of a plurality of decomposers can be greatly improved, and the treatment efficiency of the whole sewage is further improved.
In order to realize the treatment efficiency of sewage, M water storage tanks are arranged, each water storage tank is communicated with a plurality of decomposers, and after the sewage treatment in one water storage tank is completed, the sewage in the decomposers flows back and is discharged. Through the method, the efficient treatment of the sewage is realized.
As a specific embodiment of the sponge urban rainwater purification system provided by the present invention, the discharging sewage when the target time is reached comprises:
the time is counted from the time when the sewage flows into the first decomposition tank and the second decomposition tank, respectively.
And when the smaller of the first time and the second time is reached, the corresponding decomposition tank and the first water storage tank are interrupted.
The method comprises the steps that the sewage flows into a first decomposition tank and a second decomposition tank respectively, timing is started, the larger time is selected between the first time and the second time to serve as target time, when the time that the sewage flows into the first decomposition tank and the second decomposition tank reaches the target time, the first time serves as the target time, at the moment, the concentration of a first substance is decomposed to a preset standard, the concentration of a second substance is decomposed to a level lower than the preset standard, although the requirement of discharge is higher, the turnover frequency of the decomposition tanks is reduced, and the use efficiency of the first attachment and the corresponding structure cannot be improved. When the second time is reached, which indicates that the second substance has been decomposed to the predetermined level, the second decomposition tank is disconnected from the water storage tank, and then the second decomposition tank is cleaned, after which it is ready for the next decomposition of the substance.
As a specific implementation manner of the sponge urban rainwater purification system provided by the present invention, after the corresponding decomposition tank and the water storage tank are interrupted, the system further comprises:
the deposits in the interrupted decomposition tank are cleaned by distilled water.
For a specific area, the content and concentration of substances in the sewage are in a relatively stable state, and after the communication between a decomposition tank and a water storage tank is interrupted, if the next decomposition of the sewage is directly carried out without cleaning treatment, impurities which are not cleaned are inevitably accumulated, so that the decomposition result is influenced, and the content of heavy metals in the sewage is generally over-standard. If the deposits gradually build up on the attachments, the growth of microorganisms is affected, and for this reason, after the communication between the corresponding decomposition tank and the water storage tank is interrupted, the decomposition tank is cleaned by distilled water, thereby ensuring the accuracy of the final result.
As a specific embodiment of the sponge urban rainwater purification system provided by the present invention, adding sewage into the first microbial solution and the second microbial solution for decomposing the second substance respectively comprises:
the first microbial solution and the second microbial solution are continuously added to the first attachment and the second attachment, respectively, for a certain period of time.
Carry out the processing that circulates by the sewage of a plurality of decomposers in to the water storage tank in this application, because it is a endless process to handle sewage, sewage can contact with the microorganism on the attachment after carrying out the decomposer, need flow back to the water storage tank in again through the back flow after the contact is accomplished, export by the water storage tank after the initial mixing of water storage tank again. In order to prevent the sewage from washing the microorganisms from the attachments, the first microorganism solution and the second microorganism solution are uniformly added to the corresponding attachments at a certain rate during the actual decomposition.
In order to ensure that the first graph and the second graph are obtained in the same environment as the actual decomposition, the addition speed of the same microorganism solution is ensured to be the same at any time.
As a specific embodiment of the sponge urban rainwater purification system provided by the present invention, adding sewage into the first microbial solution and the second microbial solution for decomposing the second substance respectively comprises:
the first and second attachments are maintained at a temperature suitable for incubation of the first and second microorganisms during the decomposition process.
In the present application, it is necessary to decompose a corresponding specific substance by a plurality of microorganisms, and since there is a difference in the appropriate temperature of each microorganism solution, when there is a difference in the temperature in the decomposition tank and the appropriate temperature, the decomposition efficiency of the microorganisms is affected. Since a plurality of microorganisms are in a relatively closed space in the present application, temperature regulators may be independently provided for regulating the temperature in each decomposition tank to ensure the decomposition efficiency and the propagation of the microorganisms.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Sponge city rainwater clean system, its characterized in that includes:
determining a first substance and a first microorganism for decomposing the first substance, and preparing a first microorganism solution with a specific concentration;
dissolving different amounts of the first substance to prepare multiple first substance solutions with the same volume and different concentrations; adding a quantitative amount of the first microorganism solution to a plurality of portions of the first substance solution, respectively;
determining the time of the concentrations of the first substances in a plurality of first substance solutions until a preset standard is reached, and fitting a first curve chart according to the concentrations of the first substance solutions and the time required for decomposing the first substance solutions to the preset standard;
determining the concentration of the second substance solution according to the first curve graph and fitting a second curve graph according to the time required for decomposing the concentration of the second substance solution to a preset standard;
respectively detecting the concentration of the first substance and the concentration of the second substance in the sewage, determining a first time and a second time required for decomposing the first substance and the second substance in the first graph and the second graph, and selecting the maximum value of the two times as a target time;
and respectively adding the sewage into the first microbial solution and the second microbial solution for decomposing the second substance, and discharging the sewage when the target time is reached.
2. The sponge urban rainwater purification system of claim 1, wherein said adding said sewage separately to said first microbial solution and to a second microbial solution for decomposing said second substance comprises:
the second microbial solution configured to decompose the second substance;
respectively arranging a first attachment and a second attachment for adsorbing the first microorganism and the second microorganism in a first decomposition tank and a second decomposition tank;
and circulating sewage through the first attachment and the second attachment.
3. The sponge urban rainwater purification system of claim 2, wherein said circulating sewage through said first attachment and said second attachment comprises:
respectively communicating a first water storage tank storing sewage with the first decomposition tank and the second decomposition tank through communicating pipes;
enabling the sewage flowing through the first attachment and the second attachment to flow back to the first water storage tank through the communicating pipe;
and controlling the communication or the interruption between the first water storage tank and the first decomposition tank and the second decomposition tank through a valve on the communicating pipe.
4. The sponge urban rainwater purification system of claim 3, wherein said adding said sewage separately to said first microbial solution and to a second microbial solution for decomposing said second substance comprises:
determining an Nth substance and decomposing the Nth substance to an Nth curve graph corresponding to a preset standard;
detecting the concentrations of a first substance, a second substance to an Nth substance in the sewage, and determining and sequencing the first time, the second time to the Nth time in the first graph, the second graph to the Nth graph;
setting an Nth decomposition tank and an Nth attachment for adsorbing the Nth substance;
and sequentially interrupting the corresponding decomposers and the first water storage tank according to the sequencing order.
5. The sponge urban rainwater purification system of claim 4, wherein said adding said sewage separately to said first microbial solution and to a second microbial solution for decomposing said second substance comprises:
arranging an Mth water storage tank, and communicating the first water storage tank to the Mth water storage tank with the first decomposition tank, the second decomposition tank to the Nth decomposition tank; arranging a plurality of water storage tanks in sequence;
when one decomposition tank is interrupted with one water storage tank, the decomposition tank is communicated with the next water storage tank after being cleaned and added with corresponding microorganism solution.
6. The sponge urban rainwater purification system of claim 3, wherein said discharging sewage when said target time is reached comprises:
timing is started when sewage flows into the first decomposition tank and the second decomposition tank respectively;
and when the smaller of the first time and the second time is reached, the corresponding decomposition tank and the first water storage tank are interrupted.
7. The sponge urban rainwater purification system of claim 4, further comprising after said interrupting the corresponding decomposer and the water storage tank:
the deposits in the interrupted decomposition tank are cleaned by distilled water.
8. The sponge urban rainwater purification system of claim 2, wherein said adding said sewage separately to said first microbial solution and to a second microbial solution for decomposing said second substance comprises:
the first microbial solution and the second microbial solution are continuously added to the first attachment and the second attachment, respectively, for a certain time.
9. The sponge urban rainwater purification system of claim 2, wherein said adding said sewage separately to said first microbial solution and to a second microbial solution for decomposing said second substance comprises:
maintaining both said first attachment and said second attachment at a temperature suitable for incubation of said first microorganism and said second microorganism during decomposition.
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| WO2019239691A1 (en) * | 2018-06-15 | 2019-12-19 | 株式会社Ihi | Method for constructing model of cod change over time and method for predicting cod change over time |
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| AU6181896A (en) * | 1995-06-22 | 1997-01-22 | SFC Environmental Technologies PVT. LTD | Controlling wastewater treatment by monitoring oxygen utilisation rates |
| CN102914510A (en) * | 2012-09-25 | 2013-02-06 | 中国科学院生态环境研究中心 | Device and method for online measurement of dynamic chlorine demand of conditioning water |
| CN104787875A (en) * | 2015-04-14 | 2015-07-22 | 北京金控自动化技术有限公司 | Aeration control method and system adopting sequencing batch reactor activated sludge process |
| WO2019239691A1 (en) * | 2018-06-15 | 2019-12-19 | 株式会社Ihi | Method for constructing model of cod change over time and method for predicting cod change over time |
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