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Device for extracting water-repellent humic acid from soil

A humic acid and soil technology, applied in the direction of organic chemistry, can solve the problems of unsuitability for large-scale sample collection, low humic acid extraction, poor implementability, etc., and achieve simple structure, high degree of automation, and prevent Effect of foreign particles mixed into the sample

Inactive Publication Date: 2017-06-30
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0027] The soil humic acid extraction method disclosed in the above invention mainly utilizes the adsorption properties of XAD-8 resin to adsorb small molecule humic acid onto the XAD-8 resin at a specific pH value, and then through analysis, ion exchange, and freezing Dried to finally obtain small molecule humic acid, this method relies on the laboratory and a large number of manual operations, the process is complex, the degree of automation is low, the amount of humic acid extracted is small, and the method is not suitable for large-scale sample collection bad sex

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  • Device for extracting water-repellent humic acid from soil

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Embodiment Construction

[0068] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0069] ginseng figure 1 as shown, figure 1 It is a process flow diagram of a device for extracting soil hydrophobic humic acid provided by the present invention. The device for extracting soil hydrophobic humic acid provided by the present invention comprises a reaction kettle 1, a pH adjustment unit, a filter purification unit, a first acidification tank 8, a first pH adjustment unit, an adsorption enrichment unit, a second acidification tank 22, a first Two pH adjustment unit, humic acid extraction unit and total control system 6; wherein, the reaction kettle 1 is provided with a soil storage room 2, a support 3, an agitator, a liquid level sensor and a pH sensor, and the soil storage room 2 is supported by a support 3 And located in the reaction kettle 1, the outer wall of the soil storage chamber 2 is provided with a plural...

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Abstract

The invention provides a device for extracting water-repellent humic acid from soil. The device comprises a reaction kettle, a pH regulating unit, a filtering and purifying unit, a first acidification tank, a first pH value regulating unit, an adsorption and enrichment unit, a second acidification tank, a second pH value regulating unit, a humic acid extraction unit and a total control unit. The device for extracting the water-repellent humic acid from the soil, provided by the invention, is simple in structure, convenient to operate and high in automation degree, can separate the water-repellent humic acid and other impurities conveniently and effectively, and can obtain a high-concentration water-repellent dissolved humic acid solution.

Description

technical field [0001] The invention relates to the field of humic acid extraction, in particular to a device for extracting soil hydrophobic humic acid. Background technique [0002] Humic acid is an organic mixture formed by animal and plant residues through complex physicochemical and biological processes, accounting for about 60-80% of the total organic matter in soil. [0003] Humic acid plays an important role in agriculture and the environment. According to current research, humic acid can stimulate the growth of crops, improve the soil pH environment, and reduce soil compaction. Humic acid is a carbon source for microorganisms. In addition, humic acid can interact with toxic heavy metal ions and organic pollutants in the environment, changing the environmental behavior of pollutants. In particular, the combination of hydrophobic humic acid and persistent organic pollutants such as PAHs is more stable, controlling its migration and transformation rules and biologic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07G99/00C08H99/00
CPCC08H99/00C07G99/00
Inventor 白英臣吴丰昌王彬魏源傅平青马燕孙可冯伟莹赵天慧孟徐菁华
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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