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A method for adsorption and catalytic degradation of atrazine in water

A technology of atrazine and catalytic degradation, applied in chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve problems such as entering soil and water environment, soil and groundwater pollution, harming beneficial organisms, etc. Achieve the effect of solving environmental pollution, simple and easy process, and good adsorption performance

Active Publication Date: 2021-05-25
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the low utilization rate of pesticides, only a small part acts on the target, and most of them enter the soil and water environment, causing soil and groundwater pollution, endangering the beneficial organisms in the soil and water, and affecting the ecological environment

Method used

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  • A method for adsorption and catalytic degradation of atrazine in water
  • A method for adsorption and catalytic degradation of atrazine in water
  • A method for adsorption and catalytic degradation of atrazine in water

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Effect test

Embodiment 1

[0030] Preparation of Moso bamboo remains Fe / Mn composites:

[0031] (1) Cut the moso bamboo into pieces and dry it, then peel off the dense surface structure and set aside.

[0032] (2) Configure dilute ammonia water with a concentration of 5% by volume as the impregnated body remover.

[0033] (3) Dissolving manganese chloride and ferric nitrate in a 1:1 ethanol-ultrapure water mixed solvent with a volume ratio of 4:1 to obtain an iron-manganese compound salt with a total molar concentration of 1.2mol / L solution as a precursor solution.

[0034](4) Put the product obtained in step (1) into the impregnated body remover prepared in step (2), and soak for 6 hours at 100° C. to complete the extraction pretreatment.

[0035] (5) The product obtained in step (4) was washed with ultrapure water, and dried in an oven at 80° C. for 24 hours.

[0036] (6) Submerge the product obtained in step (5) in the precursor solution obtained in step (3), and keep it in a water bath at 60°C fo...

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Abstract

The invention discloses a method for absorbing and catalytically degrading atrazine in water. Using dilute ammonia water as the cooking agent, the mixed salt solution prepared by ferric nitrate and manganese chloride was used as the precursor solution to prepare the Fe / Mn composite material in the bamboo state, and the Fe / Mn composite material in the bamboo state was controlled by clever preparation process design. Selective adsorption characteristics, and through the adsorption process of adsorbent particle size, static adsorption pH value, stirring speed and the use of persulfate (PMS) catalyst control, to obtain a method for the adsorption and catalytic degradation of atrazine in water, A new approach and method have been found for the transformation of moso bamboo resources into treasures and the purification and degradation of organochlorine pesticide atrazine. The method of the invention has a good removal effect on atrazine, the preparation of the adsorption material is simple and easy, and the raw materials are abundant. After purification, it can be recovered and reused by external magnetic force, which is of great significance for solving environmental pollution and promoting waste reuse.

Description

technical field [0001] The invention belongs to the technical field of environmental materials, in particular to an adsorption and catalytic degradation method for atrazine in water. Background technique [0002] my country is a large agricultural country, and agricultural production plays an important role in the national economy. Pesticides are widely used in agricultural production. In recent years, the total amount of pesticides put into farmland in my country is about 10,000 tons every year. Organochlorine pesticides are one of the main pollution sources causing soil pesticide pollution. Although some organochlorine pesticides have ceased to be produced and sold worldwide, their detection rate in soil and agricultural products is still very high due to their length, residue and refractory degradation. high. Atrazine is a triazine herbicide. Experiments have shown that if people are affected by low doses of atrazine for a long time, it may induce chromosome rupture an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F1/72C02F101/36
CPCB01J20/20C02F1/283C02F1/725C02F2101/306C02F2101/36
Inventor 朱宗强陈海儿程燕朱义年高莹莹刘桂凤张立浩闵彬彬江长楠阎起明刘杰何豪
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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