KR20200036125A - Method for environment monitoring to the illegal discharge of waste water - Google Patents

Abstract

The present invention relates to an environment monitoring method for illegal wastewater discharge, which comprises the following steps of: (a) allowing a pipe network diagram construction module to construct a pipe network diagram of a storm sewer and a combined sewer system of a target area in a geographic information system (GIS); (b) allowing a pipeline management module to manage section in a GIS pipe network diagram of the target area by each pipeline connected to each discharge hole or open channel based on the discharge hole or open channel which is a discharge facility; (c) allowing a control module to form a database with past uncovered illegal discharges cases and status of each business site within the target area to store the database in a storage device; (d) allowing a statistical analysis module to analyze relevancy in the identical time slot between a real-time measurement item and an item difficult to be measured in rotational through statistical analysis using a Z score and multivariate analysis; and (e) allowing an output module to provide a manager in real time with a list of business sites on a pipeline connected to the discharge hole or open channel which is the discharge facility and a list of business sites expected to perform illegal discharge based on real-time relevancy analysis within the corresponding area. Accordingly, when an illegal discharge occurs in the discharge facility, an illegal discharge area and company can be quickly checked based on pipeline information, such as a pipe network diagram and the like, constructed in advance.

Description

{Method for environment monitoring to the illegal discharge of waste water}

The present invention relates to an environmental monitoring method for unauthorized discharge, and more specifically, when an unauthorized discharge occurs through a discharge facility, it is possible to promptly check the unauthorized discharge area and company based on pipeline information such as a pipe network diagram that has been established in advance. It is related to the environmental monitoring method for discharge.

In general, pollutants, such as heavy metals or organic substances in sewage and wastewater discharged to water systems, are monitored by direct or indirect measurement methods using various measuring instruments. You can check the status in real time.

Sewage and wastewater must be discharged or discharged by treating them below the emission allowance standards specified by the Water Environment Conservation Act through physico-chemical treatment methods. In small-scale workplaces, there are cases of unauthorized discharge into the river to reduce treatment costs. Is necessary. In particular, wastewater containing heavy metals has a fatal effect by accumulating on the human body and ecosystems through the food chain, so precautionary measures are required.

In recent years, by using a remote automatic water quality measuring device (TMS) for water quality management purposes, the water pollution measuring instrument automatically measures water quality continuously and manages the measured values in the control room without taking samples directly by manpower. Although it is measuring water quality, monitoring devices for environmental monitoring, such as unauthorized discharge of sewage and industrial wastewater, have many components to be measured and are expensive, making it difficult to commercialize. In particular, monitoring of heavy metal components has a very large impact on the environment, but it is difficult to measure individual items, and it is difficult to install an automatic measuring device due to high cost.

Furthermore, more specifically, in recent years, a continuous automatic measuring device attached to a discharge outlet is connected to a sewage and wastewater treatment facility and a wastewater discharge workplace more than a certain size online to the remote control center for water quality, and the discharge status of pollutants is always 24 hours. The water quality management is strengthened by implementing the TMS to be monitored, but the water quality TMS effectively prevents industrial wastewater that is discharged without permission into the water system because it is too expensive to install and maintain in small-scale pollutant discharge facilities and has difficulty in maintenance. There is a need for a way to monitor and control.

In addition, most of the existing methods of cracking down on companies that discharge pollutants into water systems are systems that uncover unauthorized companies based on manpower, such as the experience of the crackdown, so it is difficult to realistically crack down unless they are spotted, and scientific and systematic management Is a difficult situation.

Korean Patent Registration No. 10-1586650 (published on Jan. 19, 2016), which is a prior art, is a water intake means arranged for each river requiring water quality management and extended to be able to supply water from the water in the river, and supplied through the intake means A collection unit comprising a collection chamber for collecting sample water and storing sample water; An equipment controller configured to input and set operating conditions for performing the water collecting function of the water collecting unit to control individual water collecting chambers; A central control unit for controlling the equipment controller and the water collection unit; The water collection chamber, a chamber case having a facility space therein, a pump installed in the chamber case to supply water through the water intake means, connected to one side of the pump, water flows in and out and flows water to the opposite side It includes a main water supply pipe forming a possible path, a distribution pipe communicating with the main water supply pipe and forming a plurality of paths through which sample water can flow, and a water collecting bottle for storing water moved along the distribution pipe, Disclosed is a water collection system for pollution monitoring consisting of a single cap integrated with a plurality of the water collection bottles.

Republic of Korea Patent Registration No. 10-1586650 (published on January 19, 2016, title of the invention: water collection system for pollution monitoring)

In the above-mentioned conventional technology, it is difficult to select a range of companies that are expected to have unauthorized discharge due to lack of pipeline and branch information connected to the discharge facility, and it takes a lot of time to identify unauthorized discharge companies according to the discharged water quality information. There are problems that can result.

The present invention was devised to solve the above problems, and an object of the present invention is to promptly identify unauthorized areas and companies based on pipeline information, such as a pipe network, which is pre-built when unauthorized discharge occurs through a discharge facility. , To provide an environmental monitoring method for unauthorized discharge.

Another object of the present invention is to provide a list of discharge companies according to the basic data and discharged water quality information collected in advance so as to reduce the scope of unauthorized discharge control and to solve the fear of evidence destruction.

In order to achieve the above object, the present invention comprises the steps of: (a) constructing a pipe network construction module in a geographic information system (GIS), constructing a pipe network of rainwater pipes and confluence pipes in a target area; (b) the management module for each pipeline divides and manages zones by pipelines connected to each earthway or waterway on the basis of a discharge facility, a waterway or waterway, in the GIS network map of the target area; (c) the control module, in the target area, the step of storing the cases of unauthorized discharge of sewage and the status of each business site into a DB and storing it in a storage device; (d) Statistical analysis module analyzes correlation between real-time measurement items and items that are difficult to measure in real time through statistical analysis using Z score and multivariate variance analysis, and (e) output module is a discharge facility Basic features include providing a list of business sites on a pipeline connected to an indigo or waterway and a business site predicted to be released by real-time correlation analysis in real time to a manager in a corresponding area by a connected pipeline. Is done.

In addition, in the step (c) of the present invention, the current status of each business site is a business purpose, a business site list, and a discharge water property including a discharge item and a discharge concentration.

In addition, in the step (d) of the present invention, the real-time measurement items by real-time measuring instruments installed in a discharge facility, a tow or a waterway are DO, water temperature, PH, electrical conductivity, and TOC.

In addition, in the step (d) of the present invention, items that are difficult to be measured in real time are BOD, COD, and heavy metals, which are collected and analyzed in advance by regularly collecting sewage directly from a discharge facility.

In addition, Z score = (x-mean) / standard deviation in step (d) of the present invention.

In addition, the correlation analysis in the step (d) of the present invention, if an item of a standard value or more among real-time measured items is received through a wired / wireless communication network in real time, any item that is difficult to be measured in real time is continuously discharged through a water pit or a water channel. You can predict in real time.

In addition, in the step (e) of the present invention, the basic data that is the basis for providing a list of business sites include the network maps of the excellent pipes and conduit pipes in the target area, GIS including discharge facilities, earthworks or waterways, and business sites divided by discharge facilities. List, examples of past sewage uncovered in the target area and the status of each business site.

As described above, the environmental monitoring method for the unauthorized discharge of the present inventor can promptly check the unauthorized discharge area and company based on the pipeline information such as the pipe network, which is pre-built when the unauthorized discharge occurs through the discharge facility, and the collected basic basis By providing a list of discharge companies according to data and discharged water quality information, it is possible to reduce the scope of unauthorized discharge control and thereby solve the concerns about the destruction of evidence.

1 is a block diagram showing an embodiment of a system related to an environmental monitoring method for unauthorized discharge according to the present invention.
Figure 2 is a flow diagram of an environmental monitoring method for unauthorized discharge according to the present invention.
3 is an exemplary view of constructing a pipe network in an environmental monitoring method for unauthorized discharge according to the present invention.
Figure 4 is an exemplary view of zone management by pipeline in the environmental monitoring method for unauthorized discharge according to the present invention.
5 is a graph showing an example of comparing the water quality analysis result and the Z score analysis in the environmental monitoring method for unauthorized discharge according to the present invention.

If described in detail with reference to the accompanying drawings, preferred embodiments of the present invention configured as described above are as follows. It should be noted that the accompanying drawings and the description with reference to the drawings are exemplified for easy understanding by those skilled in the art with respect to the present invention, and are not intended to limit the spirit and scope of the present invention. Will have to.

1 is a block diagram showing an embodiment of a system related to an environmental monitoring method for unauthorized discharge according to the present invention, Figure 2 is a view showing a flow diagram of an environmental monitoring method for unauthorized discharge according to the present invention, Figure 3 Is an exemplary view of constructing a pipe network diagram in an environmental monitoring method for unauthorized discharge according to the present invention, FIG. 4 is an exemplary view of zone management for each pipeline in an environmental monitoring method for unauthorized discharge according to the present invention, and FIG. 5 is the present invention It is a graph showing an example of comparing the water quality analysis result and the Z score analysis in the environmental monitoring method for unauthorized discharge according to.

In FIG. 1, the unauthorized discharge monitoring tool 10 of the present invention is a software installed in an IT device including a computer, for example, a server computer or a desktop PC, a notebook PC, a tablet or a smartphone, that is, an application program. (Application). The unauthorized discharge monitoring tool (10) is for promptly checking the unauthorized discharge area and company based on the pipeline information such as the pipe network that has been established in advance when an unauthorized discharge occurs through the discharge facility. It is to grasp the correlation between real-time measurement items and difficult-to-measure items through analysis.

The unauthorized discharge monitoring tool (10) is a geographic information system for constructing a pipe network diagram of a pipe and a conduit pipe of a target region in the geographic information system. Management module (12) for each pipeline, control module (13), data receiving module (14), statistical analysis module (15) that analyzes the correlation between real-time measurement items and items that are difficult to measure in real time through statistical analysis, and output modules ( 16) and the like. In addition, various data for information processing of the unauthorized discharge monitoring tool 10 are input / output and stored in the storage device 20. The storage device 20 may be internal or external to the IT device. And the information stored in the storage device 20 will be able to share data remotely through a wired or wireless communication network in real time.

2, the series of processes of the present invention will be described in detail as follows.

First, the pipe network construction module 11 of the unauthorized discharge monitoring tool 10 is a complex geographic information system (hereinafter referred to as 'GIS') that enables to search and analyze related information such as underground facilities along with terrain information such as a general map. ', Geographic Information System) to construct a pipe network of rainwater pipes and confluence pipes in the target area to which the present invention is applied (FIG. 3, S10). Even if the pipe network is mechanically constructed, it is necessary to modify it if it is necessary to modify the pipe network diagram for the purpose of the present invention. The GIS may be installed in the storage device 20 and the pipe network DB may also be input to the storage device 20.

In addition, when the storm water pipe and the conduit type pipe are connected to the discharged water, the discharge facility, such as a tow or waterway, which is a discharging facility, must be input and displayed when constructing the GIS network. It is an important facility for environmental monitoring. The earth or waterway DB may also be input to the storage device 20, and the input earthwork or waterway and business site include GPS coordinates.

Next, the management module 12 for each pipeline of the unauthorized discharge monitoring tool 10 is discharged from the GIS network map of the target area to which the present invention is applied when construction of the GIS network diagram including the earthwork or waterway is completed. Alternatively, zone management is performed by dividing the pipelines connected to each earth pit or waterway based on the waterway (hereinafter, the waterway is limited to a rainwater conduit and a conduit type conduit according to the purpose of the present invention) (FIG. 4, S20). For example, the sewage discharged from the first and second toes in the target area is discharged from different workplaces or homes. Therefore, it is possible to divide the business site by each discharge facility by managing the area according to the connection of the pipeline.

In addition, it is necessary to collect cases of unauthorized discharge of sewage in the target area to which the present invention is applied. This is to construct the business data without unauthorized discharge of sewage as one of the basic data that can be used in the present invention. The unauthorized discharge detection DB may be input to the storage device 20.

Next, the current status of each business site in the target area to which the present invention is applied should be collected, wherein the business status of each business site includes the purpose of the business and the characteristics of the discharged water including the emission item and the discharge concentration. The emission items should be specific, for example, heavy metals and organic substances, and the emission concentration may be data measured in the past or data reported by a business site as the concentration of the emission items. The status DB for each business site may also be input to the storage device 20.

The above contents are constructed and utilized as the basic data of the present invention. In summary, the basic data that should be constructed include: a network map of a rainwater pipe and a consolidated pipe in a target area and a GIS including a discharge facility, a pit or a waterway, as a web server or It will be installed in the user terminal, and to improve the environmental monitoring efficiency of the target area, it will be classified into DBs for each discharge facility by dividing it into pipelines connected to earthworks or waterways, and control modules of the unauthorized discharge monitoring tool 10 ( 13) DB is also stored in the storage device (20) by making a DB of the cases of unauthorized discharge of past sewage and the status of each business site in the target area (S30). It is desirable to build a list of business sites in the target area in advance.

Next, various measuring instruments 30 for real-time water quality measurement are installed in a culvert or waterway that is a discharge facility for each zone by a connected pipeline. For real-time measurement, the instruments 30 must be capable of wired / wireless communication, and items measured in real time by the real-time instruments 30 may be DO, water temperature, PH, electrical conductivity, TOC, and the like. The measured values of the items measured in real time by the real-time measuring instruments 30 are also stored in the storage device 20 in real time by the data receiving module 14 of the unauthorized discharge monitoring tool 10.

On the other hand, items that are difficult to be measured in real time, such as BOD, COD, and heavy metals, are collected and analyzed in advance by regularly collecting sewage directly from the discharged water pit or waterway (for example, several times a month). Is accumulated and DB is stored in the storage device 20 by the control module 13 of the unauthorized discharge monitoring tool 10. Therefore, in the present invention, real-time measurement through a wired / wireless communication network is made only by a water quality meter installed in a water pit or waterway, and real-time measurement can be continuously measured at a time or constant cycle desired by an administrator, so that sewage is regularly discharged from a water pit or waterway. The time zone when collecting directly can correspond to the same time zone in real-time measurement.

For example, when the lead, which is a heavy metal, is detected by analyzing and measuring sewage collected directly, real-time measurement items (DO, water temperature, PH, electrical conductivity, TOC, etc.) at the same time as the collection time of the sample for which lead was detected are detected. Load data from the storage device and analyze the correlation between real-time measurement items and items that are difficult to measure in real time through statistical analysis by the statistical analysis module 15 of the unauthorized discharge monitoring tool 10 as a data mining process. The result is DB and stored in the storage device 20 (S40). That is, since it is possible to compare items between the same place (together or waterway) and the same time zone, it is to analyze the cross-correlation between items that are difficult to measure in real time and items that are measured in real time by the real-time instruments 30.

Here, the statistical analysis may analyze the effect that one of the items that is difficult to measure in real time affects many of the items that are measured in real time by real-time instruments, and many of the items that are difficult to measure in real time may be analyzed in real time You can also analyze the impact on one of the items being measured. Here, a multivariate variance analysis, which will be described later, is required.

Meanwhile, in the present invention, the statistical analysis utilizes a Z score (Z score) and a multivariate variance analysis.

Here, the Z score is also referred to as a standard score (standard score), and is obtained by Z score = (x-mean) / standard deviation from the standard normal distribution. That is, how many times the standard deviation of the random variable x is from the mean is expressed as the Z score, and the standardized Z score represents the position of the score related to the mean of the distribution using standard deviation as the unit of measurement. It can play a role in making the displayed values comparable.

For example, as shown in Fig. 5, the correlation between the correlation and the correlation cannot be determined by the water quality analysis results, but the Z score analysis shows similar patterns according to conductivity, such as Pb, CODcr, and As, which can be judged to be correlated. .

The multivariate variance analysis (MANOVA) is a statistical technique that tests differences between groups with differences in the mean vector of dependent variables when there are two or more dependent variables. Multivariate ANOVA analyzes the differences between groups with respect to the mean of one dependent variable. It can be said that the analysis of variance (ANOVA) is a generalized method by testing the differences between groups for a plurality of dependent variables. That is, it is a statistical technique that compares multiple group means at the same time. Multivariate variance analysis reflects not only the effect of comparing multiple dependent variables at the same time, but also the correlation between dependent variables in data analysis when multiple dependent variables are correlated. It is also used to select a plurality of dependent variables as a smaller number of factors, and to select a dependent variable that discriminates between groups from among the plurality of dependent variables. Even if multiple dependent variables are independent of each other, multivariate ANOVA has the effect of controlling the level of the first class error at the level set by the researcher.

Looking at the analysis procedure of the multivariate analysis of variance, first, whether there is a correlation between the dependent variables or not, if there is no correlation, ANOVA tests the variables individually and, conversely, prepares a MANOVA. Second, we investigate the multivariate normal distribution and equidispersity, which are the basic assumptions of variables. Third, test whether the average vectors of all factor levels are the same. Fourth, if the null hypothesis that all mean vectors are equal is adopted, the test ends here, and if the null hypothesis is rejected and all mean vectors are not necessarily the same, examine the variables individually to see how different the variables are and what the difference means. Find out what it is.

Going back to the future, the more frequently collected and analyzed data is collected by collecting sewage directly from the discharge or waterway, which is a discharge facility, the higher the reliability of cross-correlation between items measured by real-time instruments 30 will increase. When real-time measured items are received over the wired / wireless communication network in real time, it is possible to predict in real time which of the items that are difficult to be measured in real time by means of pre-analyzed correlations are being released through the earth or waterway. will be. That is, the real-time measuring instrument 30 can predict items that are difficult to measure in real time and monitor unauthorized discharge. Further, a device capable of automatically collecting in real time for securing evidence may be provided in the corresponding pit or waterway that is discharged unauthorizedly above the reference value.

The list of business sites on the pipeline connected to each pit or waterway and the discharged items predicted in real time are relentlessly discharged. Based on the included basic data, the output module 16 of the unauthorized discharge monitoring tool 10 can be provided to an administrator together with an alarm (S50).

Meanwhile, the series of processes is performed by a program that directly codes an algorithm through a programming language to perform it on a computer.

Therefore, in the present invention, when an unauthorized discharge occurs through a discharge facility, it is possible to promptly identify an unauthorized discharge area and a company based on pipeline information such as a pipe network, which is pre-built, and discharge according to the basic data collected in advance and discharged water quality information. By providing a list of companies, it is possible to reduce the scope of unauthorized discharge control, thereby addressing the concerns about the destruction of evidence.

10: Unauthorized discharge monitoring tool 11: Pipe network construction module
12: Management module for each pipeline 13: Control module
14: data receiving module 15: statistical analysis module
16: Output module 20: Storage device
30: multiple instruments

Claims (7)

(a) The pipe network construction module 11 comprises: constructing a pipe network diagram of a rainwater pipe and a confluence pipe of a target region in a geographic information system (GIS);
(b) the management module 12 for each pipeline comprises the steps of dividing and managing zones for each pipeline that is connected to each earth or waterway based on the discharged water or waterway that is a discharge facility in the GIS network map of the target area;
(c) the control module 13 is a step in which the case of the unauthorized discharge of past sewage in the target area and the status of each business site are DB and stored in the storage device 20;
(d) The statistical analysis module 15 analyzes the correlation in the same time zone between real-time measurement items and items that are difficult to measure in real time through statistical analysis using Z score and multivariate variance analysis, and
(e) The output module 16 manages the list of business sites on the pipeline connected to the discharge facility, pit or waterway, and the list of business sites predicted to be unauthorized by real-time correlation analysis in real time in the relevant area by the connected pipeline. Environmental monitoring method for unauthorized discharge, including the step of providing to the.
According to claim 1,
In the step (c), the current status of each business site is a business purpose, a business site list, and a discharge method including discharge items and discharge concentration, characterized by environmental monitoring for unauthorized discharge.
According to claim 1,
In the step (d), the real-time measurement items by real-time measuring instruments 30 installed in a discharge facility, a tow or waterway, are DO, water temperature, PH, electrical conductivity, TOC, environmental monitoring for unauthorized discharge Way.
According to claim 1,
In step (d), items that are difficult to be measured in real time are BOD, COD, and heavy metals, characterized by preliminarily analyzing and measuring sewage directly from a discharge facility, and measuring environmentally.
According to claim 1,
Z score = (x-mean) / standard deviation in the step (d), characterized in that the environmental monitoring method for unauthorized discharge.
According to claim 1,
In the step (d), the correlation analysis is performed in real time which of the items that are difficult to be measured in real time is continuously discharged through a pit or a water channel when items exceeding a reference value among items measured in real time are received through a wired / wireless communication network in real time. The environmental monitoring method against unauthorized discharge that can be predicted.
According to claim 1,
In the above step (e), the basic data that is the basis for providing a list of business sites include the network map of stormwater pipes and conduit pipes in the target area, GIS including discharge facilities, earth and water channels, and a list of business sites classified by discharge facilities, within the target area. Environmental monitoring method for unauthorized discharge, characterized by past sewage detection cases and status by site.

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