Method for measuring emission flux of unorganized surface source gas

A gas emission and measurement method technology, applied in the field of measurement and testing, can solve the problems of quantitative monitoring that is difficult to accurately detect the emission flux, and achieve the effect of satisfying convenience and improving accuracy

Pending Publication Date: 2022-06-21
EVERBRIGHT ENVIRONMENTAL TECH CHINA CO LTD +3
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Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies of the above-mentioned background technology, to provide a method for measuring the discharge flux of fugitive surface source gas, adopting the conventional flux box method to sample gas samples, and using the discharge flux calculation formula considering the temperature and pressur

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  • Method for measuring emission flux of unorganized surface source gas
  • Method for measuring emission flux of unorganized surface source gas
  • Method for measuring emission flux of unorganized surface source gas

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Embodiment Construction

[0020] The technical solutions of the invention will be described in detail below with reference to the accompanying drawings.

[0021] The present invention is based on a portable and feasible box-type sampler for accurate gas sampling and working condition parameter recording, and can be applied to the measurement of fugitive gas emission flux on various solid surfaces or non-aerated water surfaces. Common non-organized emission sources in the waste industry: landfill piles and non-aerated water treatment tanks, and the three most significant and common gases with the most significant greenhouse gas effect: carbon dioxide (CO 2 ), methane (CH 4 ), nitrous oxide (N 2 O), to explain. Other similar surface source conditions or gas conditions can be referred accordingly.

[0022] The landfill body and the non-aerated water treatment tank are all surface sources with stable surface. The main difference is that the landfill body is the solid phase release surface, and the non-a...

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Abstract

The invention discloses a method for measuring emission flux of unorganized surface source gas, and belongs to the technical field of measurement and testing. According to the method, the temperature and the pressure in a box body of the sampler are collected through the box body type sampler, the concentration of a gas sample collected at each sampling time is detected, and an emission flux calculation formula considering temperature and pressure changes in the box body of the sampler is deduced according to an ideal gas state equation; fitting and calculating a regression equation according to a value of a combined variable consisting of the temperature and the pressure in the box body recorded at each sampling time and the concentration of the gas sample collected at each sampling time and a time value; and substituting the slope of the regression equation into an emission flux calculation formula to obtain a monitoring result of the emission flux of the unorganized non-point source emission gas, so that the measurement precision of the emission flux of the unorganized non-point source gas is effectively improved.

Description

technical field [0001] The invention discloses a method for measuring the discharge flux of unorganized surface source gas, and belongs to the technical field of measurement and testing. Background technique [0002] At present, for the unorganized emission of greenhouse gases from non-organized sources such as the surface of the landfill body and the surface of non-aerated water bodies, the technologies for monitoring the emission flux of unorganized non-point sources of greenhouse gases at home and abroad mainly include qualitative monitoring and quantitative monitoring. Qualitative monitoring methods such as simple field observations, thermal infrared surveys and grid scanning cannot obtain precise and specific emission results. Quantitative monitoring methods such as flux box method, micro-meteorological method, mass balance method / section method, tracer gas plume method, and gas plume method are used to obtain the daily or annual emission flux of greenhouse gases. Micr...

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Application Information

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IPC IPC(8): G01N33/00G01K13/00G01L11/00G01N1/22
CPCG01N33/0004G01N1/2273G01K13/00G01L11/00
Inventor 王天娇李敏王乾李义华赵彬
Owner EVERBRIGHT ENVIRONMENTAL TECH CHINA CO LTD
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