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Cyclic extraction type groundwater quality detection equipment

A technology for water quality testing and groundwater, applied in testing water, measuring devices, material inspection products, etc., can solve the problems of inability to pick up, consume manpower, affect secondary sampling, etc., to reduce disturbance, facilitate sampling, and ensure the effect of water level

Inactive Publication Date: 2018-11-02
ZHONGKE DINGSHI ENVIRONMENTAL ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small diameter of the sampling well, it is difficult to place equipment in the well for automatic monitoring of water quality, and the water can only be manually extracted from the sampling well for sampling
This sampling method is relatively labor-intensive, and the data is not continuous, so it is impossible to accurately obtain the law of the quality change of polluted groundwater.
And due to the different soil permeability, some soil sites with low permeability, the water level in the well cannot rise for a long time after sampling, which affects the secondary sampling

Method used

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  • Cyclic extraction type groundwater quality detection equipment
  • Cyclic extraction type groundwater quality detection equipment
  • Cyclic extraction type groundwater quality detection equipment

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Embodiment 1

[0035] Embodiment 1: A specific embodiment is used to illustrate the actual use of this method.

[0036] In an online water quality monitoring project of a groundwater contaminated site, a total of four sampling wells 2 were designed, and the three parameters of water quality in each sampling well 2 were pH, oxidation reduction potential (ORP) and dissolution. Oxygen (DO). Therefore, the above three types of water quality parameter sensors 12 are used, a total of 12 sensors. According to the number of sensors, a total of 23, 12 sensor controllers and 25 18-port data loggers are provided. According to figure 2 The way to connect. The water quality parameter sensor 12 has the same shape, with a diameter of 25.6mm, and the pipe thread is upper and lower 3 / 4NPT pipe threads, the thread length is 26.2mm, and the thread bottom sensor length is 152.4mm. The water tank 13 is made of aluminum alloy, and the observation window is made of acrylic material, bonded with waterproof glue. Th...

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Abstract

The invention provides a cyclic extraction type groundwater quality detection equipment system. The system comprises an extraction pipe, a self-priming pump, a water inlet pipe, a water tank, a watertank outlet pipe and a water return pipe, wherein the lower end of the extraction pipe extends into a sampling well; an inlet of the self-priming pump is connected with the upper end of the extractionpipe; the water inlet pipe is connected with an outlet of the self-priming pump; a water inlet of the water tank is communicated with the water inlet pipe, and a plurality of water quality parametersensors with different indexes are distributed in the water tank; the water tank outlet pipe is communicated with a water outlet of the water tank; the upper end of the water return pipe is connectedwith the water tank outlet pipe, and the lower end extends into the position, below the groundwater level and close to the water surface, of the sampling well. A water sample is extracted from the bottom of the sampling well, water quality is detected by detection equipment on the ground, meanwhile, the water sample is not reserved, the extracted groundwater is reinjected into the upper water level layer of the same sampling well in real time, groundwater sampling is facilitated for a technician while groundwater quality is monitored on line, disturbance to quality of sampling water from the well bottom is reduced to the greatest extent, and water level in the well is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of online monitoring, in particular to a circulating extraction type groundwater quality detection equipment. Background technique [0002] In the process of groundwater pollution control, the monitoring of groundwater quality changes is of great significance, and the results can guide the adjustment of groundwater pollution control methods and the revision of process parameters. However, due to the limitations of the actual conditions of the site and to avoid excessive interference with the groundwater, sampling wells with a diameter of less than 100mm are usually used to sample the groundwater. Due to the small diameter of the sampling well, it is difficult to place equipment in the well for automatic monitoring of water quality, and it is only possible to manually extract water from the sampling well for sampling. This sampling method is more labor intensive, and the data is not continuous, and it is impossib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18G01N1/14
CPCG01N33/1886G01N1/14
Inventor 金程张文杨勇殷晓东黄海
Owner ZHONGKE DINGSHI ENVIRONMENTAL ENG CO LTD
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