SU1154215A1 - Device for automatic monitoring of waste and natural water quality - Google Patents

Abstract

DEVICE FOR AUTOMATIC CONTROL OF QUALITY OF WASTE AND NATURAL EQUIPMENT, containing pumps, a unit for the pretreatment of controlled water, a sensor unit for physical and chemical parameters of the control, and a reagent treatment unit with different topics. that, in order to increase the control accuracy, it additionally contains a block of heavy metal content sensors, connected to the sensor block of physical and chemical parameters of the controls through the water reagent treatment unit, and a fine water purification stage installed in front of the sensor block of physical and chemical parameters of the control. J J / 2 $ 2S 2 /, 4-JUV-- X.

Description

The image relates to devices for the automatic control of the quality of natural and waste waters during the purification process and can be used in water treatment. A device for automatic quality control of waste and natural waters is known, comprising an interconnected receiving filter, a pump, a measuring unit and sensors for monitoring water parameters ij. A disadvantage of this device is the limited number of monitored parameters. The design does not provide, for example, measurements of such characteristics as the content of chromium, cyanides. since this requires a higher degree of purification of the controlled water and a change in the pH values of the controlled one. water. The closest to the invention in technical essence and the achieved effect is an automatic device for quality control of waste and natural waters, containing pumps, a unit for preliminary purification of controlled water, a sensor unit for physical and chemical control parameters, and a reagent treatment unit 2j. However, in the known device it is not possible to create optimal conditions for the operation of various sensors, which reduces the accuracy of their work. In addition, the device design does not provide for the continuous monitoring of water vapor. The aim of the invention is to increase the control accuracy. The goal is achieved by the fact that a device containing pumps, a pretreated unit of controlled water, a sensor unit physically n chemical parameters and a pear unit of water treatment additionally contains a sensor block containing heavy metals connected to the sensor unit of physical and chemical parameters through a node reagent water treatment, and a stage of fine water purification installed in front of the sensor block of physical and chemical parameters of the control. The drawing shows a schematic diagram of the proposed device. In this embodiment, all sensors for monitoring water parameters are divided into three groups according to the principle of similarity of working conditions and placement in separate chambers separated by water purification steps. The device contains a camera 1 of sensors of physicomechanical parameters of water with a flow sensor 2 installed in it (in case of monitoring the quality of water in the discharge pipe), a turbidity sensor 3, an internal pump 4. Chamber 1 of sensors of physical and mechanical parameters is connected via a pump 4 and a hydrocyclone With a camera 6 sensors of physical and chemical parameters: sensor 7 of conductivity, sensor 8 of oil content and sensor 9 of temperature. The sensor chamber 6 is connected via a pump 10 and a filter 11 to a sensor chamber 12, consisting of cells 13-15 with sensors 16-18, respectively, with a pH value of 10, chromium content, and cyanide content. Dp to ensure the operation of the sensors 17 and 18, the cells 14 and 15 are equipped with water pH adjustment units consisting of a pH sensor 19, a converter 20, a potentiometer 21, an acid or alkali tank 22, a valve 23 with a servo motor. Cell 14 has a reducing agent bisulfate tank 24 and a unit 25 for a reagent dose. The sensor chambers are connected to the measuring and converting unit 26, the STATE of the independently included measuring and converting devices 27-34, respectively: turbidity, salt content, oil content, temperature, pH, cyanide content, chromium content, controlled water flow. The camera 1 of the sensor unit is mounted directly into the pipeline 35. The device operates as follows. The water flowing through the pipeline 35 enters the chamber I of the sensors of physical and mechanical parameters, where the water flow and turbidity are measured. By the submersible pump 4, water is pumped to the rough cleaning stage — a pressure hydrocyclone 5, and then to the chamber 6 of sensors 7–9, monitoring physical and chemical parameters, where the values of electrical conductivity, temperature and oil content are measured. From the chamber 6, the analyzed water is pumped 10 to the filter 11, where it is cleaned from

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oils and petroleum products, after which it flows into the cells 13-15 of the chamber 12.

Automatic devices of cells 14 and 15 support the necessary dp of sensors 17 and 18 for the pH of the analyzed water by dispensing acid or alkali from tank 22 to cells 1A and 15 by means of a valve with servomotor 23, depending on the performance of potentiometer 21, associated with converter 20 and sensor The cell 14 is dispensed from the tank 24. The reducing agent is a salt of sulfuric acid: for example sodium bisulfate, using the unit 25 of the reagent dose.

Measuring devices 27-34 of block 26 generate electrical signals by corresponding physicochemical parameters of water and convert them into graphical form. The water that passes the quality control sensors from each chamber and cells is discharged back into the pipeline 35.

The proposed device provides continuous monitoring of a greater number of water parameters, compared with the base object. If the known device allows to measure turbidity values.

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temperature, electrical conductivity, and pH values (over the water quality indicator), the proposed device additionally allows you to continuously measure the flow rate, the content of petroleum products, chromium and cyanides (a total of eight indicators). This ensures the accuracy of control due to the fact that

In the chambers and cells of the device, optimum conditions are created for the operation of the dp of all sensors.

The use of the plant allows continuous monitoring of the flow and concentration of wastewater and natural water pollution, determining the total amount of pollution discharged into the water body, makes it possible to prevent discharge into water bodies.

sewage with a concentration of pollutants exceeding the allowable values and, moreover, allows for correct calculations of wastewater dilution in water bodies and financial

calculations with enterprises - consumers of water.

The listed technical advantages are aimed at ensuring environmental protection and provide an environmental effect.

Claims (1)

(5? DEVICE FOR AUTOMATICALLY WHO WASTE QUALITY CONTROL AND NATURAL WATER, containing pumps, a unit for pre-treatment of controlled water, a unit of sensors for physical and chemical parameters of control and a unit for reagent treatment, characterized in that, in order to increase the accuracy of control, it additionally contains a block of sensors for the content of heavy metals connected to a block of sensors for physical and chemical control parameters through the reagent water treatment unit, and a stage for fine water purification, installed in front of the sensor block of physical and chemical control parameters.