A kind of sulfur-containing compound odor eliminating agent and its preparation method and application

The technology of an odor eliminator and a compound is applied in the field of odor eliminator and its preparation to achieve the effect of reducing peculiar smell disturbing people and improving satisfaction

Active Publication Date: 2022-06-14
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the combination of potassium permanganate and powdered activated carbon has not been applied to the elimination of soil odor

Method used

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  • A kind of sulfur-containing compound odor eliminating agent and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] At room temperature, 5kg of 100 mesh powder activated carbon was soaked in 50kg of potassium permanganate saturated aqueous solution for 2.5 hours by impregnation method, and 100 mesh potassium permanganate modified powder activated carbon was obtained by 100 mesh filtering and 90 °C drying.

[0032] 2kg of 200 mesh zeolite was soaked in 20kg of potassium permanganate saturated aqueous solution for 2.5 hours, and after 140 mesh filtration and 100 °C drying, 200 mesh potassium permanganate modified zeolite was obtained for backup;

[0033] The potassium permanganate modified powder activated carbon, potassium permanganate modified zeolite and 30kg of 170 mesh ferric chloride were solid-phase mixed at a speed of 50rmp, stirred for 2 hours to obtain the odor eliminator;

[0034] At the site of soil remediation engineering at a pesticide pollution site, select a construction exposure surface with a large odor, and spray the odor elimination agent of the present invention, with ...

Embodiment 2

[0036] At room temperature, 2.3kg of 200 mesh powdered activated carbon was soaked in 70kg of potassium permanganate saturated aqueous solution for 3 hours by impregnation method, and 100 mesh potassium permanganate modified powder activated carbon was obtained by 200 mesh filtering and 80 °C drying.

[0037] 0.7 kg of 100 mesh zeolite was soaked in 20kg of potassium permanganate saturated aqueous solution for 3 hours, and after 170 mesh filtering and 95 °C drying, 200 mesh potassium permanganate modified zeolite was obtained for backup;

[0038] The potassium permanganate modified powder activated carbon, potassium permanganate modified zeolite and 10kg of 100 mesh ferric chloride were solid-phase mixed, the speed was 200rmp, stirred for 1 hour to obtain the odor elimination agent;

[0039] In a pesticide pollution site soil remediation engineering site, select a large odor of the construction exposure surface, spray the odor elimination agent of the present invention, the dosage...

Embodiment 3

[0041] At room temperature, 2.5kg of 140 mesh powder activated carbon was soaked in 50kg of potassium permanganate saturated aqueous solution for 2 hours by impregnation method, and 170 mesh potassium permanganate modified powder activated carbon was obtained by 120 mesh filtering and 85 °C drying.

[0042] Soak 2 kg of 200 mesh zeolite in 30 kg of potassium permanganate saturated aqueous solution for 2 h; Filtered by 200 mesh and dried at 80 °C, potassium permanganate modified zeolite of 200 mesh was obtained for backup;

[0043] The potassium permanganate modified powder activated carbon, potassium permanganate modified zeolite and 20kg of 100 mesh ferric chloride were solid-phase mixed, the speed was 150rmp, stirred for 1.5 hours to obtain the odor eliminator;

[0044] In a pesticide pollution site soil remediation engineering site, select a large odor of the construction exposure surface, spray the odor elimination agent of the present invention, the dosage of 0.1kg / m 2 。

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Abstract

The invention provides a sulfur-containing compound odor remover and its preparation method and application, which is composed of the following raw materials in parts by weight: 2.3-7.0 parts of powdered activated carbon, 0.7-2.0 parts of zeolite, 70-100 parts of potassium permanganate saturated aqueous solution and 0-30 parts of ferric chloride. In the present invention, the odor elimination agent obtained by mixing potassium permanganate modified powder activated carbon, potassium permanganate modified zeolite and ferric chloride in solid phase and stirring can degrade odor substances and realize odor in the process of remediating pesticide-contaminated soil The source reduction, the elimination rate of peculiar smell is more than 90%, reduce the peculiar smell caused by secondary pollution and disturb the residents, and improve the satisfaction of surrounding residents with the restoration technology.

Description

Technical field [0001] The present invention relates to a odor eliminating agent and preparation method and application thereof, in particular to an adsorbed sulfur-containing compound odor eliminator and preparation method and application thereof. Background [0002] With the acceleration of the urbanization process, a large number of retired sites in China's chemical, pesticide, coking and other industries have entered the stage of restoration and development. In recent years, China has issued a series of laws and regulations in related fields of soil remediation, ensuring the benign development of China's soil remediation industry. However, in the process of soil in situ or ectopic remediation, especially in the process of soil excavation and contaminated soil remediation construction of pesticide-polluted sites, it is urgent to eliminate odor control technology on the foundation pit or surface soil formed after excavation, reduce the odor material with a low olfactory thresho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30B01J29/076B01D53/86B01D53/48B01D53/52B09C1/08
Inventor 王风贺车岳涵张胜田吕正勇赵志仁
Owner NANJING NORMAL UNIVERSITY
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