Accurate monitoring and evaluation method for petroleum hydrocarbons in organic contaminated site

A technology of organic pollution and petroleum hydrocarbons, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems that cannot meet the requirements of polluted site investigation and degradation assessment

Inactive Publication Date: 2018-09-18
INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
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Problems solved by technology

This grouping method has made great progress compared with the traditional method, but it still cannot meet the requirements of polluted site investigation and degradation assessment.

Method used

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  • Accurate monitoring and evaluation method for petroleum hydrocarbons in organic contaminated site
  • Accurate monitoring and evaluation method for petroleum hydrocarbons in organic contaminated site
  • Accurate monitoring and evaluation method for petroleum hydrocarbons in organic contaminated site

Examples

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specific Embodiment

[0043] Specific Example: Monitoring and Evaluation of Volatile Petroleum Hydrocarbons in Contaminated Sites

[0044] 1) Main instruments and main reagents used

[0045] Instruments: purge and trap instrument and automatic purge sampler (purge and trap instrument model: 4660, produced by OI Company in the United States, equipped with 4552 automatic purge sampler), gas chromatography-mass spectrometry (Japan Island Jin company, model GCMS QP2010plus), special chromatographic column Rtx-624 for volatile organic compounds, specification 30m×0.25mm×1.40μm.

[0046] Standards and reagents: 56 kinds of VOC mixed standards (HJ 639-2012 / HJ 810-2016 Determination of Volatile Organic Compounds in Water Quality Item No.: CDGG-120778-03-02 Concentration: 2000mg / L) standard (USA o2si company); The gas is helium: the purity is above 99.999%, filtered through a helium filter, the oxygen content is less than 5.0μL / L, and the hydrogen content is less than 1.0μL / L. Sweeping gas: nitrogen, puri...

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Abstract

The invention discloses an accurate monitoring and evaluation method for volatile petroleum hydrocarbons in an organic contaminated site, and the accurate monitoring and evaluation method comprises the following steps: a. qualitative analysis and grouping of major petroleum hydrocarbon pollutants in the contaminated site; b. selecting of a representative contaminated site internal standard (RICCS)and indoor internal standard (IS), and quantification of the contaminated site internal standard; c, use of a RICCS area normalization method to determine the content of each group of the petroleum hydrocarbon; d, calculation of correction factors during the selecting of the contaminated site internal standard and RICCS switching; e, comparison with the contaminated site internal standard, calculation of the concentration content of each group of each series point in turn according to the method of the step c, and drawing of a standard curve; and f, determining of the contents of different carbons of the petroleum hydrocarbons and calculation of the content of the total petroleum hydrocarbons. The evaluation method system can accurately determine the contents of different carbons (C3-C11)of the petroleum hydrocarbons in the volatile petroleum hydrocarbons and also calculate the exact content of total volatile petroleum hydrocarbons.

Description

technical field [0001] The invention belongs to the field of environmental monitoring, and relates to an accurate analysis method for petroleum substances, in particular to an accurate monitoring and evaluation method for petroleum hydrocarbons in organic polluted sites. Background technique [0002] Petroleum pollution accounts for a very large proportion of environmental pollution sites worldwide, which is directly related to the exploitation and utilization of petroleum resources. The petrochemical industry is one of the most important basic industries in the world. It can provide energy and basic raw materials for the operation of the national economy. Therefore, various related industries in this field are also highly concerned by many countries. As an important strategic resource, petroleum can be widely used in chemical industry, pharmaceutical, energy, aerospace, agriculture and other aspects. With the increasing use of petroleum resources by human beings, the harm ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/8854
Inventor 桂建业张晶刘菲
Owner INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
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