Deodorant prepared by using organic solid waste and application thereof

A technology of organic solids and deodorants, applied in the field of deodorants, can solve the problems of consuming large adsorbents, and achieve the effects of facilitating ventilation, increasing nutrient content, and reducing the risk of secondary pollution

Active Publication Date: 2015-08-05
BEIJING BUILDING MATERIALS ACADEMY OF SCI RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only need to consume a large amount of adsorbent, but also need to build biological treatment facilities

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The present embodiment prepares deodorant by following steps:

[0035] A. Sorting: The domestic waste is separated into two major components, organic and inorganic, through a two-stage vibrating screening machine and a magnetic separator to remove inorganic impurities;

[0036] B. Crushing: After sorting the domestic waste, the organic part and agricultural and forestry waste are respectively broken to 20mm~50mm;

[0037] C. Mixing: Mix crushed household garbage, agricultural and forestry waste and sludge into a mixture. The mixing mass ratio is: domestic garbage: agricultural and forestry waste: sludge=1~5:5~10:10~15;

[0038] D. Activation: Dry the prepared mixture in an oven at 80-100 degrees until the moisture content is below 10%, and soak it in 5% KOH solution for 20-30 hours according to the mass ratio of 2-8%. Then put it into 10% ferrous sulfate solution and soak for 20-30 hours to form a soaked substance;

[0039] Among them: KOH and ferrous sulfate can m...

Embodiment 2

[0050] Further improvement on the basis of Example 1.

[0051] The food waste is separated into organic and inorganic components by passing through a two-stage vibrating screening machine and a magnetic separator to remove inorganic impurities. The organic components are crushed to 20mm~50mm; the crushed food waste, rice husk and sludge are prepared into an organic mixture, wherein, food waste: rice husk: sludge = 5:10:15; the prepared The mixture is dried, according to the mass addition ratio of 5%, soaked in 5% KOH solution for 24 hours, and then soaked in 10% ferrous sulfate solution for 24 hours. After centrifuging at a speed of 3000r / min, remove the supernatant, dry the remaining solids, and place them in a steam atmosphere at 650°C for 2.5 hours of carbonization, then rinse with 0.1% dilute hydrochloric acid for 10 times, and then use Soak in distilled water for 2 hours, take it out and dry it, put it into a plant pulverizer and crush it to obtain the finished deod...

Embodiment 3

[0053] The domestic waste is divided into two major components, organic and inorganic, through a two-stage vibrating screening machine and a magnetic separator to remove inorganic impurities. Crush the organic components to 20mm~50mm; add straw and sludge crushed to 30mm to prepare an organic mixture, of which, ordinary domestic waste: straw: sludge = 5:5:15; dry the prepared mixture, press The addition ratio of 6% is soaked in 5% KOH solution for 26 hours and then soaked in 10% ferrous sulfate solution for 24 hours. , remove the supernatant, dry the remaining solids and place them at 650°C, CO 2 Carbonize under atmosphere for 2.5 hours, then rinse with 0.1% dilute hydrochloric acid repeatedly for 15 times, then soak in distilled water for 2 hours, take it out and dry it, put it into a plant pulverizer and crush it to obtain the finished deodorant. The pore volume of the finished deodorant is 0.37cm 3 / g, the pore diameter is 2.5nm, and the specific surface area is 623.11m ...

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PUM

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Abstract

The invention provides a deodorant prepared by using organic solid waste and an application thereof. The deodorant is prepared by using solid wastes such as kitchen garbage, common household garbage, sludge, garden waste, and agricultural vegetable fiber waste, A preparation method is characterized in that household garbage, agricultural waste and sludge are fragmented and mixed according to mass ratio of 1-5: 5-10: 10-15, then activated, anhydrated, carbonized, flushed, and dried to obtain mesoporous and microporous composite structures. According to the deodorant, pore volume can reach more than 0.3cm<3>/g, aperture is 1-3nm, and specific surface area is greater than 600m<2>/g. The deodorant is used for biological treatment or exhaust gas processing for solving the offensive odor processing problem in city, using waste to process the waste, and reducing the discharge amount of atmosphere PM 2.5 substance.

Description

technical field [0001] The invention relates to the field of solid waste reuse, especially for odor control and resource reuse technologies involving combustible solid waste such as sludge, domestic waste, kitchen waste, and garden waste, and specifically relates to a method for utilizing organic solid waste The prepared deodorant and its application. Background technique [0002] With the continuous expansion of city scale, the increasing urban population and the continuous improvement of people's living standards, the generation of urban domestic waste is gradually increasing. As early as 1996, the volume of urban waste removal in China had reached 100 million tons, and it was growing at a rate of 8% to 10% every year. The annual accumulation of garbage has reached more than 6 billion tons, and more than 200 cities across the country have been surrounded by garbage, and the land area occupied by garbage accumulation has reached more than 500 million square meters. Garbag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
Inventor 李春萍黄乐田梦笔杨飞华郝利炜
Owner BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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