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A Method for Analyzing Factors Affecting the Interface Area of ​​Heavy Non-aqueous Phase Liquid and Water Phase

A technique of interfacial area and heavy non-aqueous phase, applied in surface tension analysis and other directions, can solve problems such as the inability to quantitatively analyze the influence of ionic strength

Active Publication Date: 2019-05-10
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

The interface area between heavy non-aqueous liquid and aqueous phase is of great significance in the remediation of organic pollution in groundwater, but the existing technology cannot quantitatively analyze the influence of ionic strength on the interface area between heavy non-aqueous liquid and aqueous phase

Method used

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  • A Method for Analyzing Factors Affecting the Interface Area of ​​Heavy Non-aqueous Phase Liquid and Water Phase
  • A Method for Analyzing Factors Affecting the Interface Area of ​​Heavy Non-aqueous Phase Liquid and Water Phase
  • A Method for Analyzing Factors Affecting the Interface Area of ​​Heavy Non-aqueous Phase Liquid and Water Phase

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[0040] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0041] Such as figure 1 As shown, a method for analyzing the influencing factors of the interface area between the heavy non-aqueous phase liquid and the water phase according to the embodiment of the present invention, the method for analyzing the influencing factors of the interface area between the heavy non-aqueous phase liquid and the water phase includes:

[0042] Step 101: Build a two-dimensional sand box.

[0043] Step 102: Determination of non-aqueous phase trichlorethylene and dodecyl dodecylbenzene sulfonate without Br- and sodium dodecylbenzenesulfonate containing Br- at different concentrations using a pull ring tensiometer Interfacial tension of sodium benzenesulfonate solution, and calculate the corresponding interfacial partition coeffic...

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Abstract

The invention provides a method for analyzing influence factors on the interfacial area between a dense non-aqueous phase liquid and an aqueous phase. The method comprises steps as follows: building a two-dimensional sand box; measuring interfacial tension of sodium dodecyl benzene sulfonate without Br- and sodium dodecyl benzene sulfonate with Br- in non-aqueous phase trichloro ethylene and sodium dodecyl benzene sulfonate solutions under different concentrations by a ring tension meter, and calculating corresponding interfacial distribution coefficient values; injecting calcium bromide and the sodium dodecyl benzene sulfonate solutions into the two-dimensional sand box for tracer experiment, and measuring adsorption background values of sand to sodium dodecyl benzene sulfonate; injecting non-aqueous phase trichloro ethylene into the sand box, and measuring the interfacial area between non-aqueous phase trichloro ethylene and the aqueous phase with an interfacial distribution tracer method. According to the method, the two-dimensional sand box is built, the corresponding interfacial distribution coefficient values are calculated, and the adsorption background values of the sand to sodium dodecyl benzene sulfonate and the interfacial area are measured, accordingly, influence of ion strength on the interfacial area between the dense non-aqueous phase liquid and the aqueous phase can be accurately analyzed, and reference is provided for studies on migration, distribution and in-situ oxidation restoration of the dense non-aqueous phase liquid.

Description

technical field [0001] The invention relates to the technical field of groundwater organic pollution, in particular to a method for analyzing factors affecting the interface area of ​​a heavy non-aqueous phase liquid and a water phase. Background technique [0002] In recent years, the interface area between Non-Aqueous Phase Liquid (NAPL) and water phase is an important parameter affecting the dissolution rate of NAPL, which is of great significance to the migration, distribution and remediation of organic pollutants in groundwater. The interface area between heavy non-aqueous liquid and aqueous phase is of great significance in the remediation of organic pollution in groundwater, but the existing technology cannot quantitatively analyze the influence of ionic strength on the interface area between heavy non-aqueous liquid and aqueous phase. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for analyzing ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N13/02
CPCG01N13/02
Inventor 李木子翟远征滕彦国王金生
Owner BEIJING NORMAL UNIVERSITY
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