Soil lead pollution source identification method based on stable isotope and multi-element characteristic analysis

A stable isotope and feature analysis technology, applied in the direction of material analysis, character and pattern recognition, material analysis through electromagnetic means, etc., to achieve the effect of accurate identification

Active Publication Date: 2021-01-05
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the shortcomings of the existing lead pollution source identification technology, the present invention provides a soil lead pollution source identification method based on stable isotope and multi-element feature analysis, which can effectively improve the accuracy and reliability of lead pollution source identification results

Method used

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  • Soil lead pollution source identification method based on stable isotope and multi-element characteristic analysis
  • Soil lead pollution source identification method based on stable isotope and multi-element characteristic analysis
  • Soil lead pollution source identification method based on stable isotope and multi-element characteristic analysis

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Carry out technical research on pollution source analysis, select the farmland soil polluted by the wastewater discharged from the electroplating factory as typical research areas of industrial pollution, and according to the pollution characteristics of the research area, along the sewage discharge ditch, at a distance of about 100 meters, 200 meters, and 500 meters from the electroplating factory 1,000 meters to collect 0-20 cm surface farmland soil next to the ditch, and at the same time collect pollution source samples (industrial waste, factory sewage, soil parent material, organic fertilizer, chemical fertilizer, organic-inorganic compound fertilizer, plastic film).

[0057] The stable isotope ratio ( 208 Pb / 206 Pb, 207 Pb / 206 Pb) and lithium, beryllium, boron, sodium, magnesium, aluminum, potassium, calcium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, arsenic, selenium, strontium, molybdenum, tin, antimony, barium , phosphoru...

Embodiment 2

[0069] Carry out pollution source analysis technology research, select the farmland soil polluted by the Xian mine as the typical research area of ​​mining pollution, and according to the pollution characteristics of the research area, collect 0- 20 cm surface farmland soil, and mine waste (ore, tailings), etc. were collected in the mine, and samples of pollution sources such as rainwater from washing tailings, chemical fertilizers, compound fertilizers, and soil-forming parent materials were collected at the same time.

[0070] The stable isotope ratio ( 208 Pb / 206 Pb, 207 Pb / 206 Pb) and lithium, beryllium, boron, sodium, magnesium, aluminum, potassium, calcium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, arsenic, selenium, strontium, molybdenum, tin, antimony, barium , phosphorus, sulfur, chlorine, silicon 28 kinds of mineral element content. According to the lead isotope ratio in the lead pollution source soil and risk source samples, th...

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Abstract

The invention relates to the technical field of environmental detection, and discloses a soil lead pollution source identification method based on stable isotope and multi-element characteristic analysis. The method comprises the steps of 1) determining an investigation area of a lead pollution source; 2) carrying out environment investigation on the determined lead pollution source investigationarea; 3) according to an environmental survey result, arranging sampling points according to different conditions, and collecting a risk source sample; 4) analyzing and determining the lead isotope ratio and the contents of various mineral elements in the lead-polluted soil and the risk source sample; and 5) identifying the lead pollution source based on stable isotope and multi-element characteristic fingerprint in combination with principal component clustering analysis. Based on a lead pollution source identification technology combining lead stable isotope, multi-element characteristics and multivariate statistics, a soil heavy metal lead pollution source can be accurately discriminated and identified, and a scientific basis is provided for soil lead pollution prevention and control work.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a soil lead pollution source identification method based on stable isotope and multi-element feature analysis. Background technique [0002] As one of the "five poisonous" elements (mercury, cadmium, lead, chromium and arsenic), lead has attracted worldwide attention because of its non-biodegradability and long biological half-life, as well as its ability to accumulate through the food chain and affect human health. extensive attention. Lead in the environment comes from a wide range of sources, such as vehicle exhaust, coal combustion, mining, and various industrial production activities. In order to accurately find the source of pollution, cut off the pollution route in time, and reduce the probability of harm, it is particularly important to trace the source of lead pollution. [0003] Stable isotope research is a classic research method in the field of geoch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62G06K9/62
CPCG01N27/626G06F18/23G06F18/2135
Inventor 肖文丹叶雪珠张棋赵首萍陈德
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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