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Sulfur-containing compound peculiar smell eliminating agent as well as preparation method and application thereof

A technology of odor eliminators and compounds, applied in the field of odor eliminators and their preparation, to achieve the effect of reducing odor nuisance and improving satisfaction

Active Publication Date: 2019-05-03
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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  • Sulfur-containing compound peculiar smell eliminating agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] At normal temperature, 5 kg of 100 mesh powdered activated carbon was soaked in 50 kg of potassium permanganate saturated aqueous solution for 2.5 hours by impregnation method; filtered through 100 mesh and dried at 90°C, 100 mesh of potassium permanganate modified powdered activated carbon was obtained for subsequent use.

[0032] Soak the 200 mesh zeolite of 2kg in 20kg potassium permanganate saturated aqueous solution for 2.5 hours; filter through 140 mesh and dry at 100°C to obtain 200 mesh potassium permanganate modified zeolite for subsequent use;

[0033] The 170 order ferric chloride of described potassium permanganate modified powder activated carbon, potassium permanganate modified zeolite and 30kg is carried out solid-phase mixing, rotating speed 50rmp, obtain described odor eliminating agent after stirring for 2 hours;

[0034] At the site of a soil restoration project in a certain pesticide-contaminated site, select the larger construction exposure surface o...

Embodiment 2

[0036] At normal temperature, 2.3kg of 200 mesh powdered activated carbon was immersed in 70kg potassium permanganate saturated aqueous solution for 3 hours by impregnation method; filtered through 200 mesh and dried at 80°C, 100 mesh potassium permanganate modified powdered activated carbon was obtained for subsequent use.

[0037] Soak 0.7kg of 100-mesh zeolite in 20kg of potassium permanganate saturated aqueous solution for 3 hours; filter through 170-mesh and dry at 95°C to obtain 200-mesh potassium permanganate modified zeolite for use;

[0038] The 100 order ferric chloride of described potassium permanganate modified powder activated carbon, potassium permanganate modified zeolite and 10kg is carried out solid-phase mixing, rotating speed 200rmp, obtain described peculiar smell eliminating agent after stirring for 1 hour;

[0039] On the site of a certain pesticide-contaminated site soil remediation project, select the relatively large construction exposure surface of th...

Embodiment 3

[0041] At normal temperature, soak 2.5kg of 140 mesh powdered activated carbon in 50kg potassium permanganate saturated aqueous solution for 2 hours by impregnation method; filter through 120 mesh and dry at 85°C to obtain 170 mesh potassium permanganate modified powdered activated carbon for subsequent use.

[0042] Soak the 200 mesh zeolite of 2kg in 30kg potassium permanganate saturated aqueous solution for 2 hours; Filter through 200 mesh and dry at 80°C to obtain 200 mesh potassium permanganate modified zeolite for subsequent use;

[0043] The 100 order ferric chloride of described potassium permanganate modified powder activated carbon, potassium permanganate modified zeolite and 20kg is carried out solid-phase mixing, rotating speed 150rmp, obtain described peculiar smell eliminating agent after stirring for 1.5 hours;

[0044] At the site of a soil restoration project in a certain pesticide-contaminated site, select the larger construction exposed surface of the peculia...

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Abstract

The invention provides a sulfur-containing compound peculiar smell eliminating agent as well as a preparation method and application thereof, the sulfur-containing compound peculiar smell eliminatingagent comprises 2.3-7.0 parts of powdered activated carbon, 0.7-2.0 parts of zeolite, 70-100 parts of a potassium permanganate saturated aqueous solution and 0-30 parts of ferric chloride. The sulfur-containing compound peculiar smell eliminating agent is obtained by carrying out solid-phase mixing on potassium permanganate modified powder activated carbon, potassium permanganate modified zeoliteand the ferric chloride and stirring. The sulfur-containing compound peculiar smell eliminating agent is used for degrading peculiar smell substances, the source of peculiar smell in the remediation process of pesticide polluted soil is reduced, the removal rate of the peculiar smell is more than 90%, the peculiar smell disturbing residents caused by secondary pollution is reduced, and the satisfaction degree of surrounding residents on the repairing technology is improved.

Description

technical field [0001] The present invention relates to a peculiar smell eliminating agent and its preparation method and application, in particular to a peculiar smell eliminating agent which absorbs sulfur-containing compounds and its preparation method and application. Background technique [0002] With the acceleration of urbanization, a large number of decommissioned sites in the chemical, pesticide, coking and other industries in my country have entered the stage of restoration and development. In recent years, my country has promulgated a series of laws and regulations related to soil remediation to ensure the sound development of my country's soil remediation industry. However, in the process of in-situ or ex-situ remediation of soil, especially the soil excavation of pesticide-contaminated sites and the process of remediation of contaminated soil, there is a lot of odor. Odor control technology is urgently needed to eliminate the odor of the foundation pit or surfac...

Claims

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Application Information

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Patent Type & Authority Applications(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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