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Passive enrichment equipment for trace organic matters in river and sampling method thereof

A technology for enrichment of organic matter, applied in the direction of measuring devices, sampling devices, radio wave measurement systems, etc., can solve the problems of difficult transportation of water samples, long time for on-site enrichment, etc., and achieve simple structure, high reusability, and easy operation Effect

Pending Publication Date: 2020-04-14
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the deficiencies in the prior art and provides a passive enrichment device for trace organic matter in rivers and a sampling method thereof. The basic principle of the device is based on the free flow of the detected substance from the sample to the passive sampler, The driving force of this free flow is the difference in chemical potential energy between the two different phases of the detected substance. This equipment can be placed in the wild river for a long time, and the organic matter in the river is adsorbed through the permeable membrane to realize the passive enrichment of the organic matter, effectively Solve the problems of difficult transportation of water samples and long time for on-site enrichment

Method used

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  • Passive enrichment equipment for trace organic matters in river and sampling method thereof
  • Passive enrichment equipment for trace organic matters in river and sampling method thereof
  • Passive enrichment equipment for trace organic matters in river and sampling method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Passive enrichment equipment for trace organic matter in rivers, including casings, fixing devices, positioning communication devices 7 and enrichment devices;

[0034] The shell includes a shell 2 and a shell cover 1, the shell 2 is an open hollow cylindrical container, and the liquid inlet 3 is evenly opened on the wall of the shell 2;

[0035] The fixing device includes a fixing ring 4, a fixing anchor 6 and a fixing wire 5, the fixing ring 4 is fixed on the top of the shell cover 1, the head end of the fixing wire 5 is fixedly connected with the fixing ring 4, and the tail end of the fixing wire 5 is connected with the fixing anchor 6;

[0036] The positioning communication device 7 includes a GPS positioning device and a wireless communication device, the GPS positioning device and the wireless communication device are installed in the shell cover 1, the position signal output end of the GPS positioning device is connected with the signal receiving end of the wirele...

Embodiment 2

[0042] On the basis of Embodiment 1, the number of permeable membrane fixed piles 8 is 4, the arrangement shape of permeable membrane fixed piles 8 is a square, the diameter of the surface micropores of permeable membrane 11 is 0.5-10nm, and the number of interlayer plates 9 is 1-3, the height of the permeable membrane fixing pile 8 is 3 / 4-5 / 6 of the height of the casing 2, and the radius of the interlayer plate 9 is 2 / 3-3 / 4 of the inner diameter of the casing 2.

Embodiment 3

[0044] The sampling method of passive enrichment equipment for trace organic matter in rivers follows the following steps:

[0045] Step 1. After adjusting the position of the adjustable nut according to the width of the permeable membrane, set the interlayer plate on the permeable membrane fixing pile, and then wrap the permeable membrane on the permeable membrane fixing pile. After installing the permeable membrane, cover the shell tight;

[0046] Step 2, put the passive enrichment equipment into the water area to be tested, and fix the anchors on the bottom of the water area to avoid the passive enrichment equipment from being washed away and cause loss, and turn on the GPS positioning device and wireless communication device to detect the water area in real time. device location status;

[0047] Step 3. After placing the passive enrichment equipment in the water area to be tested for a period of time, retrieve the passive enrichment equipment. If the passive enrichment eq...

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Abstract

The invention provides passive enrichment equipment for trace organic matters in a river and a sampling method of the passive enrichment equipment. A positioning communication device comprises a GPS positioning device and a wireless communication device, wherein the GPS positioning device and the wireless communication device are both mounted in a housing cover. The enrichment device comprises a reverse osmosis membrane fixing pile, a reverse osmosis membrane, an adjustable nut and an interlayer plate, wherein the reverse osmosis membrane fixing pile is fixedly arranged at the bottom end of the housing; threads are arranged on the reverse osmosis membrane fixing pile; the adjustable nut is in threaded connection with the reverse osmosis membrane fixing pile; a through hole corresponding tothe reverse osmosis membrane fixing pile is formed in the interlayer plate; the adjustable nut is used for adjusting the position of the interlayer plate on the reverse osmosis membrane fixing pile;and the reverse osmosis membrane is wound on the reverse osmosis membrane fixing pile. The organic matters in rivers are adsorbed by the reverse osmosis membrane, so that passive enrichment of the organic matters is realized, and the problems of difficulty in water sample transportation, overlong field enrichment time and the like are effectively solved.

Description

technical field [0001] The invention relates to the technical field of river water environment monitoring devices, in particular to a passive enrichment device for trace organic matter in rivers and a sampling method thereof. Background technique [0002] With the development of the economy and the advancement of urbanization, the impact of human activities has further increased, and more and more organic matter has been input into rivers. According to reports, there are currently 2,221 organic pollutants detected in water around the world, of which 765 exist in drinking water. They may have a certain relationship with the occurrence of certain human tumors and are considered to be important chemical substances that affect the health of the population. . The impact of organic pollutants in the water environment on human health has attracted more and more attention from environmental scientists in various countries. Therefore, the analysis and identification of trace organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10G01S19/14
CPCG01N1/10G01S19/14
Inventor 毛国柱李梦婕赵雨顺徐吉平李明民陈江运
Owner TIANJIN UNIV
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