Equipment for extracting hydrophobic fulvic acid in soil by adopting combination of two-stage resins

A fulvic acid and soil technology, which is applied in the preparation, sampling, and instrumentation of test samples, can solve the problems of large operation influence, low automation, and complicated operation process, and achieve convenient operation, high automation, and simple structure. Effect

Inactive Publication Date: 2017-05-24
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0024] The soil fulvic acid extraction method disclosed in the above invention mainly relies on the laboratory method to gradually extract the fulvic acid subcomponents in the soil, and prepare different grades of fulvic acid subcomponent fractionated samples; this method relies on the laboratory and a large number of The manual operation is complex and the degree of automation is low; in addition, the fulvic acid extraction method disclosed in the patent of the present invention is greatly affected by human influence and operation, and the extraction and comparison of a large amount of fulvic acid cannot be realized, and the implementability is not good.

Method used

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  • Equipment for extracting hydrophobic fulvic acid in soil by adopting combination of two-stage resins
  • Equipment for extracting hydrophobic fulvic acid in soil by adopting combination of two-stage resins

Examples

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Effect test

Embodiment 1

[0084] ginseng figure 1 as shown, figure 1 It is a structural schematic diagram of the first embodiment provided by the present invention; figure 1 Among them, the fulvic acid extraction unit includes a washing device 15a, an organic solvent medicament box 16a, a first adsorption-enrichment device 17a and a second adsorption-enrichment device 18a; wherein, the inlet of the first adsorption-enrichment device 17a is connected to the liquid storage 14 The outlet of the outlet is connected, and its outlet is connected with the inlet of the second adsorption enrichment device 18a; The inlet of 18a is connected; the bottom of the first adsorption enrichment device 17a and the bottom of the second adsorption enrichment device 18a are equipped with waste liquid discharge valves.

[0085] use figure 1 The process of extracting soil hydrophobic fulvic acid according to the structure diagram is as follows:

[0086] First turn on the main power supply and the start button to make the ...

Embodiment 2

[0102] ginseng figure 2 as shown, figure 2 It is a structural schematic diagram of the second embodiment of the present invention; figure 2 Among them, the fulvic acid extraction unit includes a washing device 15b, an organic solvent medicament box 16b and a primary adsorption enrichment device 17b, wherein the inlet of the primary adsorption enrichment device 17b is connected to the outlet of the liquid storage 14, and the washing device, The outlets of the organic solvent medicament box are respectively connected to the inlets of the primary adsorption enrichment device 17b; the bottom of the primary adsorption enrichment device 17b is provided with a waste liquid discharge valve.

[0103] The filtration of soil organic matter, the adjustment of pH and the rough extraction process of fulvic acid in this example are the same as in Example 1, the difference lies in the different extraction units of fulvic acid. In this example, the extraction process of fulvic acid is as f...

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Abstract

The invention provides equipment for extracting hydrophobic fulvic acid in soil by adopting combination of two-stage resins. The equipment comprises a reaction kettle, a pH regulating unit, a first filtering and purifying unit, an acidifying box, an acidity and alkalinity regulating unit, a second filtering and purifying unit, a liquid storage device, a fulvic-acid extracting unit and a main control system, wherein an inlet of the reaction kettle is connected with an outlet of the pH regulating unit, and an outlet of the reaction kettle is connected with an inlet of the first filtering and purifying unit; an inlet of the acidifying box is connected with an outlet of the first filtering and purifying unit and the acidity and alkalinity regulating unit, and an outlet of the acidifying box is connected with an inlet of the second filtering and purifying unit; an outlet of the second filtering and purifying unit is connected with an inlet of the liquid storage device, and an outlet of the liquid storage device is connected with an inlet of the fulvic-acid extracting unit; and the pH regulating unit and the acidity and alkalinity regulating unit are connected with the main control system. The equipment for extracting hydrophobic fulvic acid in soil provided by the invention has the advantages that the structure is simple and convenient, the automation degree is high and solution with needed concentration can be effectively extracted.

Description

technical field [0001] The invention relates to the field of fulvic acid extraction, in particular to equipment for extracting soil hydrophobic fulvic acid by using two-stage resin combination. Background technique [0002] Fulvic acid is a kind of polydisperse acidic natural organic substance, generally in brown or brownish yellow color, which is widely distributed in environmental media such as soil, water body and sediment, and is one of the main components of humus. Fulvic acid contains a large number of phenolic hydroxyl groups, carbonyl groups, etc., soluble in both acid and alkali, and can interact with metal ions and organic pollutants, thereby affecting the chemical degradation, photocatalytic degradation, biological absorption, migration and volatilization of pollutants. Fulvic acid can also improve soil compaction and affect soil fertility. Hydrophobic fulvic acid is more likely to interact with organic pesticides and persistent pollutants, and is currently the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/34G01N1/40
CPCG01N1/34G01N1/405
Inventor 白英臣吴丰昌廖海清魏源蒲生彦王国静潘波罗义常明汪浩
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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