KR100387362B1 - Integrated water management system for real-time monitoring and automatic sampling of wastewater in remote sites - Google Patents

Abstract

The present invention measures the concentration and content of organic or suspended matter dissolved or suspended in an aqueous solution in real time using a water pollution measuring instrument that directly or indirectly measures water pollution, and transmits the measured electrical signal or data. It transmits to the control device and sets a standard that exceeds a certain concentration and content so that the discharged sample is automatically collected in the sample storage box in real time when it discharges the pollutant that exceeds the set standard value, so that it can be stored at room temperature or low temperature. The present invention relates to an integrated water quality management and automatic sample collection system that monitors and manages effluent quality from a distance without distributing field personnel at low cost by sending data to the general manager to check the abnormal condition of effluent discharged in real time.

The present invention can monitor the pollutant discharged randomly into the water system with a water pollution meter at all times and perform sampling for the discharge of the pollutant, so that the pollutant can be monitored for compliance with the water quality, and the situation of the site. Since there is no need for a permanent manpower to monitor the pollutants, the cost of monitoring pollutant sources can be significantly reduced and it can be used as an effective management technique to reduce unnecessary legal disputes about pollutant discharge activities.

Description

Integrated water management system for real-time monitoring and automatic sampling of wastewater in remote sites}

The present invention relates to an integrated water quality management and automatic sample collection system that constantly monitors the water quality of wastewater discharged to the water system, performs sampling during discharge of pollutants, and checks the abnormal state of the discharged water in real time to manage water quality. It also relates to an integrated water quality management and automatic sample collection system that can significantly reduce the cost of pollutant monitoring because there is no need for permanent personnel to constantly monitor the situation at the site.

In general, when polluted water is discharged to the general water system through the final outlet, the polluted water is discharged from the outlet through the final outlet through the treatment of contaminated water from a source of water pollution with a certain treatment facility scale, such as a wastewater treatment plant, a general sewage treatment plant or a small settlement. The water quality of the incoming water must be maintained at all times and measured for the concentration of the pollutant that represents the discharge water quality.

In order to prevent water pollution in the river or water system, it is necessary to maintain the water quality under a certain regulated concentration at all times because it is controlled by concentration regulation. Therefore, water quality management must be based on objective criteria, not only in terms of the facilities operating and maintaining the pollutant treatment plant, but also in all assessments to measure the quality of the treated effluent.

In particular, in order to ensure objectivity for the task of checking the pollution level of discharged water quality, the accuracy and economical efficiency of water pollution measuring instruments that measure pollution levels are required due to the nature of fluctuating water quality. Strong credibility and objectivity of the evaluation results between the water and water quality managers are required.

In general, in order to measure the quality of discharged water, the water discharged from the outlet must be collected by the general personnel who manage it on-site, and the management items are measured and recorded according to the nationally recognized process test method.

However, this self-management method is difficult to recognize the reliability and objectivity from the sampling stage, so that the water quality is managed by randomly or permanently visited by the government-approved accredited institution to collect the water from the outlet.

The management method by artificial sampling is required to manage separately to meet the timing of sampling and to eliminate various subjective interpretations during sampling. Therefore, it has been a waste of time and management cost. Makes it difficult.

In recent years, continuous water pollution meters such as BOD, nitrogen, phosphorus and COD, and turbidity can be used to continuously measure the discharged water quality without having to collect samples directly by manpower. In order to ensure objectivity of discharged water quality.

In the case of managing the discharge water quality using the continuous water pollution measuring instrument, it manages the output measured value of the water pollution measuring instrument and collects the water quality of the site directly, and performs the experiment based on the process test method in the laboratory. This is because the reliability of the water quality measurement may be caused by the mechanical error of the continuous water pollution measuring instrument because the mechanical measurement value and the actual measurement value according to the field sampling may be different.

However, most of these continuous water pollution measuring instruments require the preparation and periodic management of chemicals according to the continuous measurement, and because of their high price, they are difficult to install in general small pollutant discharge facilities. In addition, when the pollutant discharge facility is dispersed or installed at a long distance, it is difficult for the environmental management specialist to stay on site and difficult to manage the facility, and thus it is difficult to achieve a management purpose for maintaining the equipment or securing the discharge water quality of the treatment plant.

Therefore, the discharged water discharged from the outlet should be managed without the help of a professional manager, and if there is a problem such as unauthorized discharge or discharged by improper treatment, or if you want to check the average concentration of polluted discharged water, It is necessary to exclude the sampling by the sample, to ensure objectivity of the sampling method and to ensure the adequacy of the collected sample.

Accordingly, in the present invention, the discharged water quality is monitored unattended by various kinds of pollutant discharge sources by the water pollution measuring instrument, and the discharge of the pollutant source of the water source is monitored under unattended conditions by measuring the exact time point at which the quality of the discharged or discharged water is deteriorated. By collecting the discharged samples on-site in real time to ensure the prescribed water quality during discharge, water quality management and automatic sample collection can confirm mutual verification between the source discharger and the discharge manager and secure objective data. The purpose is to provide an integrated system.

In particular, the purpose of innovatively improving the collection system of collected samples for measuring the discharge water quality of pollutant sources by collecting samples discharged from pollutant sources at random at random and real time by storing them in storage containers for a long time. There is this.

Accordingly, in the present invention, to monitor the discharge water quality of the pollutant source that causes water pollution in an unattended state, to secure the discharge water in real time during the unauthorized discharge of the pollutant source, to collect the discharge water periodically to always evaluate the discharge water quality of the pollutant source. To provide an effective water quality monitoring device, a real-time effluent collection device and its associated peripheral related devices.

In addition, in the present invention, when the water quality discharged to the water system exceeds a certain pollution concentration, it automatically checks the fact of the contamination at a distance or on the spot automatically, and collects and manages the sample in real time to manage the water quality and automatic sample collection. We want to provide an integrated system.

1 is a block diagram of the integrated water quality management and automatic sample collection system of the present invention.

2 is a block diagram of a signal transmission control apparatus in the present invention.

Hereinafter, the water quality management and automatic sample collection integrated system of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram showing the present invention, and FIG. 2 is a schematic diagram of a signal transmission control apparatus according to the present invention. The present invention relates to a water pollution measuring instrument for continuously measuring water pollution of discharged water, and When the water quality of the discharged water measured by the pollution meter exceeds the set value, it is composed of a sampler operated by receiving an electrical signal from the water pollution meter, and a sample storage box for long-term storage of the collected sample. It is connected to a signal transmission control device which is controlled or driven by an electric signal.

In particular, the water pollution measuring instrument representing the pollution level of the water of the present invention is a device in which the measured output signal is represented by an electrical signal such as 4-20 mA or -10 to +10 mV, or in units of ppm or g / l, which is an actual pollution concentration. It consists of a device that can be calibrated to have a constant measurement value by a direct indicating device, and the measurement value of the pollution concentration of the water pollution measuring instrument is transmitted electrically as an output signal of digital or analog type. It is sent to a signal transmission control device with an automatic control logic to ensure that it is connected directly to the sampler and other drives.

Signal transmission control device is a signal processor that connects water pollution measuring instrument, sampler, and various driving motors and pumping devices. It connects to microprocessor using interface card and controls various components based on preset operation logic. All signals are connected to the communication link of 4-20 mA or RS232 and RS485 so that they can be controlled by the signals output from the controller. The signals are outputted and operated by a computer or PLC corresponding to a PC.

The sampler is manufactured as a unit component independent of the water pollution measuring instrument, and is operated by a signal transmission control device according to an electrical signal sent from the water pollution measuring instrument or by a signal input in advance to a program of a computer or a PLC to have a certain operating mode. Therefore, the pumping device, the electric stirrer motor, and the shut-off valve are operated, and all the operation principles of the sampling device have a basic logic to collect a quantity of sample at a desired time for the water sample to be collected at the site.

The sampler consists of a sample container containing a single container or multiple containers ranging from several liters to several thousand liters for storing a sample, and a sample distributor connected to the sample container, and the sample distributor is a source water source for storing effluent in real time. Alternatively, a water pollution meter connected to a pumping device installed at the main position of the water channel to be measured or in the case of a water pollution meter without a chemical reaction is installed at the outlet of the water pollution meter.

In particular, the sample distributor has the function of storing the sample by each different storage containers for each sampling unit so as to prevent contamination between samples, and configured to vary the storage unit rotation rate or opening and closing rate of the dispenser according to the quantity of connected storage containers. do. The electric stirrer motor for controlling the rotation rate and the opening / closing rate of the sample distributor is primarily connected to a water pollution measuring instrument, and is controlled to be rotated or opened or closed for each storage unit by an electrical signal of the water pollution measuring instrument or to have a constant rotation or opening / closing function. Driven by a signal, the sample can be taken at any time.

The pumping device is composed of a continuous operation pump for continuously transporting the effluent to be measured, and a discontinuous operation pump that is driven only when necessary and transfers the effluent to the sample distributor. Alternatively, a method of transporting the sample to the sample distributor may be adopted by installing a control valve having two transfer paths in one continuous pumping device connected to the water quality measurement and opening and closing as necessary. These pumping devices and on / off valves are configured to be controlled in accordance with certain logic preconfigured by the signal transmission control device.

The storage container connected to the sample distributor is configured to have a reverse flow prevention function to prevent the replacement or dilution of the contents inside the storage container, and can be installed at least one to several tens depending on the required quantity.

In addition, the cold storage of the sample can be configured as a single-piece sample storage box and a separate type storage unit is attached to the refrigeration apparatus, if necessary, stored at room temperature. At this time, the temperature of the storage vessel is connected to the signal transmission control device so that the change of the temperature change is recorded. Storage containers are made of various kinds of products such as PVC, PE, glass, stainless steel, etc., which prevent impurities from being extracted when measuring water pollution even after storing samples for a long time.

The sample storage box is configured to have a space for storing one or more storage containers of various sizes having a capacity of several tens of milliliters to several tens of liters, and to ensure the control of the opening and closing of the sample storage box and to be controlled. . Of course, during the random opening and closing of the lock, the presence or absence of the opening and closing is automatically transmitted to the signal transmission control device to confirm.

The water pollution meter and sampler configured by the above devices monitor the site in real time. When the pollutant is discharged from the pollutant source, the signal from the water pollution meter is connected to various remote control devices, and it is connected to an alarm device or telephone network and the high speed. It is delivered to the manager of the management room through various communication networks such as the Internet. Accordingly, it is possible to monitor and manage the water pollution emission status of the site unattended by transmitting the pollutant emission facts about the emission time and pollution concentrations as signals or data and collecting the source of pollution from the site in real time. To make it possible.

The present invention monitors the pollutant discharged from the water source from the source in real time to confirm the discharge point and concentration of the pollutant and automatically obtains an objective sample for lab analysis of the treated water quality, thereby complying with the water quality regulation for the pollutant discharger. It is effective to make surveillance for unmanned system.

As a result, the time and management cost for sampling can be reduced, and the objectivity of water quality management can be achieved, and the dispute caused by any sampling or analyzer error can be prevented.

Therefore, the management system of the present invention can prevent unauthorized discharge of the pollutant source and can effectively perform the water quality management of the pollutant discharger and the water system.

In particular, even in the case of managing water pollution far from the site, it is possible to secure the objectivity through remote analysis network by the water pollution measuring instrument and comparative analysis according to the actual field sample. have.

Claims (4)

It includes a water pollution measurement device for measuring the water pollution of the water system, a sampler for automatically collecting and storing the sample, and a signal transmission control device for controlling all components including the water pollution measurement device and the sampler. The sampler may include a pumping device for collecting a sample, a sample distributor for distributing the collected sample to each storage container, and a sample storage box having a storage container connected to the sample distributor and storing the sample. Integrated real-time water quality management and automatic sample collection system for remote water pollution sources. According to claim 1, wherein when the water quality of the discharged water measured by the water pollution measuring instrument exceeds a certain pollution concentration or more through the signal transmission control device the sampler is driven to collect the water sample by receiving an electrical signal. Integrated real-time water quality management and automatic sample collection system for remote water pollution sources. The system of claim 1, wherein the sampler sets an arbitrary time zone to automatically collect a predetermined amount of sample every set time. 8. The method according to claim 1, further comprising a signal processing method in which a sampler is driven according to a measured value of a water pollution measuring instrument, and a signal processing method in which a sampler is driven at an arbitrary time to automatically collect a predetermined amount of sample. Real-time water quality management and automatic sample collection integrated system of a remote water pollution source.