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Nano zero-valent iron bubbles and application thereof

A technology of nano-zero-valent iron and nano-iron, which is applied in gas treatment, auxiliary pretreatment, membrane technology, etc., can solve the problems of inability to purify with outdoor air, small air purification area, etc., and achieve the effect of reducing surface tension

Active Publication Date: 2018-04-06
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the air purification area of ​​the prior art is small and cannot be used for outdoor air purification, and to provide a nano-zero-valent iron bubble that can be used outdoors and has a large purification area.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A nano-zero-valent iron bubble, made of the following raw materials in proportion by weight: 60 parts of water, 8 parts of nano-iron suspension, 4 parts of sodium polyacrylate, 3 parts of cocamidopropylamine oxide, and 1 part of white vinegar , 1 part of Kathon, 2 parts of glycerin and 3 parts of modified methylcellulose.

[0024] Wherein, the preparation method of nano-iron suspension comprises the following steps:

[0025] (1) Add the dried chrysanthemum into deionized water, heat to 70°C, the volume ratio of chrysanthemum mass to water is 10g / L, then add ethanol, the volume ratio of water to ethanol is 1:0.15, stir and soak for 1h , to obtain primary chrysanthemum solution;

[0026] (2) filter the primary chrysanthemum solution with a filter screen, the mesh number of the filter screen is 250 mesh, obtain the primary filtrate, then carry out secondary filtration with the vacuum negative pressure on the primary filtrate, obtain the extract of chrysanthemum;

[0027]...

Embodiment 2

[0033] A nano-zero-valent iron bubble, made of the following raw materials in proportion by weight: 65 parts of water, 9 parts of nano-iron suspension, 5 parts of sodium polyacrylate, 3 parts of cocamidopropylamine oxide, and 1 part of white vinegar , 1 part of Kason, 2 parts of glycerin and 4 parts of modified methyl cellulose.

[0034] Wherein, the preparation method of nano-iron suspension comprises the following steps:

[0035] (1) Add the dried chrysanthemum into deionized water, heat to 72°C, the volume ratio of the mass of chrysanthemum to water is 15g / L, then add ethanol, the volume ratio of water to ethanol is 1:0.16, stir and soak for 1.2 h, obtain primary chrysanthemum solution;

[0036] (2) filter the primary chrysanthemum solution with a filter screen, the mesh number of the filter screen is 260 orders, and obtain the primary filtrate, and then carry out secondary filtration of the primary filtrate with vacuum negative pressure to obtain the extract of chrysanthe...

Embodiment 3

[0043] A nano-zero-valent iron bubble, made of the following raw materials in proportion by weight: 70 parts of water, 10 parts of nano-iron suspension, 5.5 parts of sodium polyacrylate, 4 parts of cocamidopropylamine oxide, and 1.5 parts of white vinegar , 2 parts of Kason, 3 parts of glycerin and 5 parts of modified methyl cellulose.

[0044] Wherein, the preparation method of nano-iron suspension comprises the following steps:

[0045] (1) Add the dried chrysanthemum into deionized water, heat to 75°C, the volume ratio of the mass of chrysanthemum to water is 20g / L, then add ethanol, the volume ratio of water to ethanol is 1:0.17, stir and soak for 1.5 h, obtain primary chrysanthemum solution;

[0046] (2) filter the primary chrysanthemum solution with a filter screen, the mesh number of the filter screen is 270 orders, and obtain the primary filtrate, and then carry out secondary filtration of the primary filtrate with vacuum negative pressure to obtain the extract of chr...

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PUM

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Abstract

The invention relates to the technical field of environmental protection and discloses nano zero-valent iron bubbles and an application thereof. The nano zero-valent iron bubbles are prepared from rawmaterials in parts by weight as follows: 60-80 parts of water, 8-12 parts of a nano iron suspension, 4-7 parts of sodium polyacrylate, 3-5 parts of cocamidopropyl dimethylamine oxide, 1-2 parts of white vinegar, 1-3 parts of Casson, 2-4 parts of glycerin and 3-7 parts of modified methyl cellulose. The nano zero-valent iron bubbles can remove large-area haze particulate matter in the air.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a nanometer zero-valent iron bubble used for removing and washing smog in the air. Background technique [0002] Smog is the result of the interaction between specific climatic conditions and human activities. The social and production activities of a high-density population will emit a large amount of fine particulate matter PM2.5 and harmful chemical gases into the air that exceed the atmospheric circulation capacity and carrying capacity. When the emitted gas pollutants form secondary particulate matter, the contribution to PM2.5 is fine. Particulate matter concentrations will continue to build. At this time, if affected by the static and stable weather, it is very easy to have large-scale smog. Haze also contains a lot of toxins, such as carbon monoxide, carbon dioxide, hydrocarbons, organic nitrogen compounds and sulfur dioxide. Usually, people can add sa...

Claims

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Application Information

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IPC IPC(8): B01D49/00B01D51/00B01D51/04B01D53/10B01D53/72B01D45/02B22F9/24
CPCB01D45/02B01D49/00B01D51/00B01D51/04B01D53/10B01D53/72B01D2257/60B01D2258/06B22F9/24
Inventor 张海龙
Owner ZHEJIANG OCEAN UNIV
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