Experiment apparatus for electrokinetic remediation and use method

A kind of experimental equipment and electrodynamic technology, applied in the direction of educational equipment, teaching models, instruments, etc., can solve the problems of inconvenient operation, inaccurate measurement, complicated equipment, etc., achieve uniform flow state, improve experimental safety, and good conductivity Effect

Active Publication Date: 2016-06-01
山东东明石化集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the fact that the current laboratory simulation equipment for saline-alkali soil cannot accurately measure the influence of various parameters, and there are problems such as complex equipment and inconvenient operation, the present invention proposes a laboratory simulation of saline-alkali soil intrusion by seawater, so that The research experiment is simplified, accurate, automated, miniaturized, and the experimental equipment and method of use for electrokinetic repair with low device cost

Method used

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  • Experiment apparatus for electrokinetic remediation and use method
  • Experiment apparatus for electrokinetic remediation and use method
  • Experiment apparatus for electrokinetic remediation and use method

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Embodiment 1

[0032] Embodiment 1 An experimental device for electrodynamic restoration according to the present invention is characterized in that it includes an experimental test unit 1, a flow-gas detection unit 2 and a power supply unit 3, and the experimental test unit 1 includes Test body 11, potential measurement probe 12 and electrode assembly 13, described test body 11 includes electrode chamber 111 at two ends and simulated soil filling chamber 112 in the middle, and described simulated soil filling chamber 112 is connected with two The electrode chamber 111 at the end is connected; the described simulated soil filling chamber 112 is provided with a plurality of jacks for inserting the potential measurement probe 12; Exhaust port 1113, each of the electrode chambers 111 is equipped with an electrode assembly 13; the anode of one of the electrode assemblies 13 is electrically connected to the positive pole of the power supply unit 3, and the anode of the other electrode assembly 13 ...

Embodiment 2

[0042] Embodiment 2 A kind of using method utilizing the experimental equipment described in embodiment 1, described using method comprises the following steps:

[0043] 1) Pretreatment of the fine sand used for filling: the simulated soil in the test is sand for construction, after being washed several times and dried, it is screened with a sieve with appropriate sieve holes;

[0044] 2) filling the clean fine sand particles treated in step 1) in the simulated soil filling chamber as simulated soil;

[0045] 3) Utilize the first test piece of the flow-gas test unit to perfuse the saturated NaCl solution used to simulate the land salinization problem caused by seawater intrusion into the test body;

[0046] 4) The flow and gas detection part mainly detects and controls the incoming flow rate, and measures and recovers the gas generated during the experiment; the power supply part can provide electric energy for the experiment under the condition of a stable voltage or steady f...

Embodiment 3

[0047] Example 3 The simulated soil in the test is construction sand, which is washed 7-8 times and then dried for 5 hours; it is first screened with a 0.9mm aperture sieve and then a 0.05mm aperture sieve. Pass a certain amount of 35g / L NaCl solution (saturated solution) into the screened fine sand, and use the electric restoration simulation device to simulate the restoration of NaCl-contaminated soil. In the experiment, the simulated soil filling chamber 1 and the potential measurement probe 12 The soil was squeezed and equally divided into 5 parts, and the electrokinetic restoration was determined by analyzing the voltage between different probes. The experiment can measure the salt concentration, water content, PH value, conductivity, etc. by controlling factors such as salt concentration, water content, applied current, and running time, and draw some conclusions through analysis, providing data and theoretical basis for related research.

[0048] It should be noted that...

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Abstract

The invention relates to an experiment apparatus for electrokinetic remediation and a use method. The experiment apparatus includes an experiment test unit, a flow-gas detection unit and a power supply unit; the experiment test unit includes a test body, potential measuring probes and electrode assemblies, wherein the anode of one of the electrode assemblies is electrically connected with the positive pole of the power supply unit, the cathode of the other electrode assembly is electrically connected with the negative pole of the power supply unit; and the flow-gas detection unit includes a first test piece for testing liquid flow and a second test piece used for testing gas flow. The method includes the following steps that: fine sand is preprocessed; a simulated soil filling chamber is filled with clean fine sand particles; perfusion of a saturated NaCl solution is carried out; and voltage change between the potential measuring probes is measured through controlling variables. With the experiment apparatus for electrokinetic remediation and the use method of the invention adopted, laboratorial simulation of salinized and alkalinized soil suffering from seawater intrusion can be realized, and an experiment can be simple, accurate, automated and miniaturized. The device is low in cost.

Description

technical field [0001] The invention relates to an experimental device for electrokinetic restoration and a use method, belonging to the field of saline-alkali land restoration. Background technique [0002] Soil salinization in coastal areas caused by seawater intrusion is a problem that cannot be ignored today, and electrodynamic restoration will play a very important role in preventing seawater intrusion, and has become one of the future research trends. [0003] Most of the analysis and research on seawater intrusion control technologies and methods in foreign countries are aimed at mitigating the harm of seawater intrusion, mainly through recharging or building hydraulic fences, that is, on the inland side located at the front of seawater intrusion, a coastline is arranged. series of wells, either by injecting water into the wells, or by reseeping through surface channels such as Figure 4 and Figure 5 They are schematic diagrams of normal groundwater and seawater bal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/40G09B23/00
CPCG09B23/00G09B23/40
Inventor 赵严董祥汤恺妮柳慧敏沈江南
Owner 山东东明石化集团有限公司
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