Closed underground water solute migration simulation experimental device

A technology for simulating experimental devices and solute migration, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of unapplicable, simple structure and low universal applicability, lack of airtight protection devices, etc.

Inactive Publication Date: 2014-12-24
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these experimental devices are designed for specific polluting solutes, with simple structures and low universal applicabili

Method used

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  • Closed underground water solute migration simulation experimental device
  • Closed underground water solute migration simulation experimental device
  • Closed underground water solute migration simulation experimental device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0064] Example 1

[0065] The device of the present invention is used to carry out parallel experiments of chlorobenzene dechlorination under constant flow conditions. Three groups of parallel experimental columns are used, marked as No. 1, No. 2 and No. 3 columns. Each column has five sampling ports. 1. The third and fifth sampling ports (labeled as A, B and C sampling ports respectively) are used for sampling and testing.

[0066] (1) Preparation of experimental materials

[0067] According to the configuration of 100000μg / L 1,2-dichlorobenzene solution (add proper amount of methanol to promote dissolution), close the outlet tube of one of the liquid supply bottles (liquid supply bottle No. 1), and fill the liquid supply bottle No. 1 For the 1,2-dichlorobenzene solution, close the vent pipe of the No. 1 liquid supply bottle and set it aside; another liquid supply bottle (No. 2 liquid supply bottle) contains part of deionized water, and close the vent pipe of the No. 2 liquid suppl...

Example Embodiment

[0081] Example 2

[0082] The specific operation method of using the device of the present invention to carry out parallel experiments of soil desalination (NaCl) under constant flow conditions (four groups of experimental soil columns, three groups of medium-fine sand and one group of silt-fine sand respectively) are as follows:

[0083] (1) Preparation of experimental materials

[0084] The two liquid supply bottles are filled with deionized water, the vent pipe of the liquid supply bottle is closed, all the flow control valves are closed after the air in the flow controller is discharged, and it is set aside; the experiment soil (10 liters of medium-fine sand, fine powder) 4 liters of sand) was rinsed with deionized water for 3 times, respectively soaked in salt water with a concentration of 0.035g / L for 48 hours, set aside; three kinds of gravel (2~3mm, 0.5~2mm and 0.05~0.5mm) ) Rinse with pure water, put them in a container and soak in deionized water for later use; calculate t...

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Abstract

The invention discloses a closed underground water solute migration simulation experimental device which comprises a liquid supply unit, a parallel experimental unit, a liquid waste recovery unit, a closed combined cabinet and a waste gas recovery unit, wherein the liquid supply unit provides a solution for the parallel experimental unit, and the flow of effluent or a water head can be controlled; the parallel experimental unit is used for an underground water solute migration simulation parallel experiment, and the experimental solute migration process is monitored through sampling; and the liquid waste recovery unit is used for recovering wastewater generated by the experiment. A closed space is formed by the closed combined cabinet, toxic volatile polluted solute gas is prevented from diffusing, the waste gas recovery unit is used for collecting volatile solutes in the experimental process, and atmospheric pollution is avoided. The experimental device disclosed by the invention is suitable for a simulation experiment of volatile or semi-volatile polluted solutes and has the characteristics of sustainability and high stability. Meanwhile, the experimental equipment is simplified, the experimental cost is saved, and the uniformity of the water head or flow conditions during the parallel experiment is guaranteed, so that comparative analysis of the parallel experiment results is facilitated.

Description

technical field [0001] The invention belongs to the fields of environmental engineering and agricultural engineering, and in particular relates to a closed underground water solute migration simulation experiment device, which is suitable for indoor soil column experiments for underground water solute migration simulation, and can be used for volatile or semi-volatile pollution solute migration simulation experiments. Background technique [0002] The groundwater environment is relatively fragile. Once the pollution has serious consequences and lasts for a long time, it is difficult to control, especially various soluble pollutants (solutes) continue to migrate, attenuate, absorb, decompose and interact with the groundwater, which will bring great harm to the groundwater pollution control. Come very difficult. Accurately grasping the migration and movement of polluting solutes with groundwater is of great significance to the control of groundwater environmental pollution and...

Claims

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Application Information

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IPC IPC(8): G01N13/04
Inventor 赵忠伟吕辉华国芬金光球陶小虎陈斌
Owner HOHAI UNIV
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