CN105174407A - Heavy metal precipitator and preparation method therefor and application thereof - Google Patents
Heavy metal precipitator and preparation method therefor and application thereof Download PDFInfo
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- CN105174407A CN105174407A CN201510433855.8A CN201510433855A CN105174407A CN 105174407 A CN105174407 A CN 105174407A CN 201510433855 A CN201510433855 A CN 201510433855A CN 105174407 A CN105174407 A CN 105174407A
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- heavy metal
- potassium hydroxide
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 55
- 239000012716 precipitator Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical class [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 82
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 78
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 54
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000292 calcium oxide Substances 0.000 claims abstract description 27
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 27
- WREDNSAXDZCLCP-UHFFFAOYSA-N methanedithioic acid Chemical compound SC=S WREDNSAXDZCLCP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims description 11
- 239000003607 modifier Substances 0.000 claims description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 21
- 230000001376 precipitating effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a heavy metal precipitator and a preparation method therefor and application thereof. The heavy metal precipitator comprises sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithiocarboxylic acid and nano sodium carbonate, wherein relative to 100 parts of sodium hydroxide, the content of nano calcium oxide is 1-10 parts by weight, the content of modified potassium hydroxide is 20-30 parts by weight, the content of dithiocarboxylic acid is 1-10 parts by weight and the content of nano sodium carbonate is 1-10 parts by weight. The heavy metal precipitator prepared by the method in actual use in heavy metal containing water can be used for effectively precipitating heavy metals in sewage so as to effectively improving the water quality of sewage, so that the pollution on a water body is greatly reduced.
Description
Technical Field
The invention relates to the field of water treatment materials, in particular to a heavy metal precipitator and a preparation method and application thereof.
Background
In daily production and life, water plays an extremely important role as a human necessity, but with the continuous improvement of living standard and technology, the pollution to water quality in the current society is extremely serious, and in many cases, the generated sewage and the like are not treated manually but are directly discharged into the nature, thereby bringing great pollution to the nature.
Therefore, the invention provides a heavy metal precipitator capable of effectively precipitating heavy metals in sewage and better treating water quality so as to achieve the purposes of effectively protecting water sources and the like and a preparation method thereof, and aims to solve the problems in urgent need.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the problems that the quality of life is influenced because water is easily polluted by sewage generated in daily production and life and a lot of sewage is directly discharged without being treated in the prior art, thereby providing the heavy metal precipitator which can effectively precipitate heavy metal in the sewage and better treat the water quality so as to effectively protect water sources and the like and the preparation method thereof.
In order to achieve the above object, the present invention provides a heavy metal precipitator, wherein the heavy metal precipitator comprises sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate; wherein,
relative to 100 parts by weight of sodium hydroxide, the content of nano calcium oxide is 1-10 parts by weight, the content of modified potassium hydroxide is 20-30 parts by weight, the content of dithioformic acid is 1-10 parts by weight, and the content of nano sodium carbonate is 1-10 parts by weight.
The invention also provides a preparation method of the heavy metal precipitator, wherein the preparation method comprises the steps of mixing sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate to prepare the heavy metal precipitator; wherein,
relative to 100 parts by weight of sodium hydroxide, the using amount of the nano calcium oxide is 1-10 parts by weight, the using amount of the modified potassium hydroxide is 20-30 parts by weight, the using amount of the dithioformic acid is 1-10 parts by weight, and the using amount of the nano sodium carbonate is 1-10 parts by weight.
The invention also provides an application of the heavy metal precipitator in water treatment.
According to the technical scheme, potassium hydroxide is modified, then sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate are mixed according to a certain proportion, and then the heavy metal precipitator prepared by mixing the proportion and the raw materials can effectively precipitate heavy metals in sewage when the heavy metal precipitator is actually used in water containing the heavy metals, so that the water quality of the sewage is effectively improved, and the pollution of the sewage to a water body is greatly reduced.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a heavy metal precipitator, wherein the heavy metal precipitator comprises sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate; wherein,
relative to 100 parts by weight of sodium hydroxide, the content of nano calcium oxide is 1-10 parts by weight, the content of modified potassium hydroxide is 20-30 parts by weight, the content of dithioformic acid is 1-10 parts by weight, and the content of nano sodium carbonate is 1-10 parts by weight.
The design is that potassium hydroxide is modified, then sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate are mixed according to a certain proportion, and then the heavy metal precipitator prepared by mixing the proportion and the raw materials can effectively precipitate the heavy metal in the sewage when the heavy metal precipitator is actually used in the water containing the heavy metal, so that the water quality of the sewage is effectively improved, and the pollution of the heavy metal to the water body is greatly reduced.
In order to make the prepared heavy metal precipitator more effective in precipitating heavy metals in sewage by further improving water quality when the heavy metal precipitator is practically used in sewage, in a preferred embodiment of the present invention, the content of the nano calcium oxide is 3 to 7 parts by weight, the content of the modified potassium hydroxide is 22 to 27 parts by weight, the content of the dithioformic acid is 3 to 7 parts by weight, and the content of the nano sodium carbonate is 3 to 7 parts by weight, based on 100 parts by weight of the sodium hydroxide.
The modified potassium hydroxide may be prepared according to a preparation method conventional in the art, for example, in a preferred embodiment of the present invention, the modified potassium hydroxide may include potassium hydroxide and a modifier, and the amounts of the potassium hydroxide and the modifier may be adjusted according to actual circumstances, for example, in a preferred embodiment of the present invention, the modifier is contained in an amount of 1 to 10 parts by weight with respect to 100 parts by weight of the potassium hydroxide.
The modifier may be of the type conventionally used in the art, for example, the modifier is a silane coupling agent.
The invention also provides a preparation method of the heavy metal precipitator, wherein the preparation method comprises the steps of mixing sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate to prepare the heavy metal precipitator; wherein,
relative to 100 parts by weight of sodium hydroxide, the using amount of the nano calcium oxide is 1-10 parts by weight, the using amount of the modified potassium hydroxide is 20-30 parts by weight, the using amount of the dithioformic acid is 1-10 parts by weight, and the using amount of the nano sodium carbonate is 1-10 parts by weight.
Similarly, in order to make the prepared heavy metal precipitator more effective in precipitating heavy metals in sewage by further improving water quality when the heavy metal precipitator is practically used in sewage, in a preferred embodiment of the present invention, the nano calcium oxide is used in an amount of 3 to 7 parts by weight, the modified potassium hydroxide is used in an amount of 22 to 27 parts by weight, the dithioformic acid is used in an amount of 3 to 7 parts by weight, and the nano sodium carbonate is used in an amount of 3 to 7 parts by weight, relative to 100 parts by weight of the sodium hydroxide.
The modified potassium hydroxide and the modifier are as described above and are not described herein in detail.
The invention also provides an application of the heavy metal precipitator in water treatment.
The present invention will be described in detail below by way of examples. In the following examples, the sodium hydroxide, the nano calcium oxide, the potassium hydroxide, the dithioformic acid and the nano sodium carbonate are conventional commercially available products, and the silane coupling agent is a commercially available product with a trade mark of KH 570.
Example 1
Mixing 100g of potassium hydroxide and 1g of silane coupling agent to prepare modified potassium hydroxide; 100g of sodium hydroxide, 3g of nano calcium oxide, 22g of modified potassium hydroxide, 3g of dithioformic acid and 3g of nano sodium carbonate are mixed to prepare the heavy metal precipitator A1.
Example 2
Mixing 100g of potassium hydroxide and 10g of silane coupling agent to prepare modified potassium hydroxide; 100g of sodium hydroxide, 7g of nano calcium oxide, 27g of modified potassium hydroxide, 7g of dithioformic acid and 7g of nano sodium carbonate are mixed to prepare the heavy metal precipitator A2.
Example 3
Mixing 100g of potassium hydroxide and 5g of silane coupling agent to prepare modified potassium hydroxide; 100g of sodium hydroxide, 5g of nano calcium oxide, 25g of modified potassium hydroxide, 5g of dithioformic acid and 5g of nano sodium carbonate are mixed to prepare the heavy metal precipitator A3.
Example 4
Mixing 100g of potassium hydroxide and 1g of silane coupling agent to prepare modified potassium hydroxide; 100g of sodium hydroxide, 1g of nano calcium oxide, 20g of modified potassium hydroxide, 1g of dithioformic acid and 1g of nano sodium carbonate are mixed to prepare the heavy metal precipitator A4.
Example 5
Mixing 100g of potassium hydroxide and 10g of silane coupling agent to prepare modified potassium hydroxide; 100g of sodium hydroxide, 10g of nano calcium oxide, 30g of modified potassium hydroxide, 10g of dithioformic acid and 10g of nano sodium carbonate are mixed to prepare the heavy metal precipitator A5.
Comparative example 1
The preparation was carried out according to the preparation method of example 3 except that the modified potassium hydroxide was used in an amount of 10 parts by weight, to obtain heavy metal precipitant D1.
Comparative example 2
The preparation was carried out according to the preparation method of example 3, except that the nano calcium oxide was used in an amount of 20 parts by weight, the modified potassium hydroxide was used in an amount of 50 parts by weight, the dithioformic acid was used in an amount of 20 parts by weight, and the nano sodium carbonate was used in an amount of 20 parts by weight, to obtain a heavy metal precipitator D2.
Test example
A plurality of groups of 1kg of sewage are respectively taken, 10g of the A1-A5, the D1 and the D2 are respectively taken and placed in the sewage, the sewage is filtered after being placed for 2 hours, and the weight of the sediment is measured, and the obtained results are shown in Table 1.
TABLE 1
| Numbering | Weight of deposit (g) |
| A1 | 16.8 |
| A2 | 16.3 |
| A3 | 15.7 |
| A4 | 10.2 |
| A5 | 8.9 |
| D1 | 3.1 |
| D2 | 3.2 |
As can be seen from Table 1, the heavy metal precipitator prepared within the scope of the present invention has good precipitation effect, but the heavy metal precipitator prepared outside the scope of the present invention does not have the good use performance, and the heavy metal precipitator prepared within the preferred scope of the present invention has better precipitation effect in actual use, so that the heavy metal in the sewage is effectively removed, and the sewage has good purification effect.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. The heavy metal precipitator is characterized by comprising sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate; wherein,
relative to 100 parts by weight of sodium hydroxide, the content of nano calcium oxide is 1-10 parts by weight, the content of modified potassium hydroxide is 20-30 parts by weight, the content of dithioformic acid is 1-10 parts by weight, and the content of nano sodium carbonate is 1-10 parts by weight.
2. The heavy metal precipitator according to claim 1, wherein the nano calcium oxide is contained in an amount of 3 to 7 parts by weight, the modified potassium hydroxide is contained in an amount of 22 to 27 parts by weight, the dithioformic acid is contained in an amount of 3 to 7 parts by weight, and the nano sodium carbonate is contained in an amount of 3 to 7 parts by weight, with respect to 100 parts by weight of the sodium hydroxide.
3. A heavy metal precipitant according to claim 1 or 2, wherein the modified potassium hydroxide comprises potassium hydroxide and a modifier, and the modifier is contained in an amount of 1 to 10 parts by weight with respect to 100 parts by weight of the potassium hydroxide.
4. A heavy metal precipitant according to claim 3, wherein the modifying agent is a silane coupling agent.
5. The preparation method of the heavy metal precipitator is characterized by comprising the steps of mixing sodium hydroxide, nano calcium oxide, modified potassium hydroxide, dithioformic acid and nano sodium carbonate to prepare the heavy metal precipitator; wherein,
relative to 100 parts by weight of sodium hydroxide, the using amount of the nano calcium oxide is 1-10 parts by weight, the using amount of the modified potassium hydroxide is 20-30 parts by weight, the using amount of the dithioformic acid is 1-10 parts by weight, and the using amount of the nano sodium carbonate is 1-10 parts by weight.
6. The preparation method according to claim 5, wherein the nano calcium oxide is used in an amount of 3 to 7 parts by weight, the modified potassium hydroxide is used in an amount of 22 to 27 parts by weight, the dithioformic acid is used in an amount of 3 to 7 parts by weight, and the nano sodium carbonate is used in an amount of 3 to 7 parts by weight, relative to 100 parts by weight of the sodium hydroxide.
7. The preparation method according to claim 5 or 6, wherein the modified potassium hydroxide is obtained by mixing potassium hydroxide and a modifier; wherein,
the modifier is used in an amount of 1 to 10 parts by weight, relative to 100 parts by weight of the potassium hydroxide.
8. The production method according to claim 7, wherein the modifier is a silane coupling agent.
9. Use of a heavy metal precipitator according to any of claims 1-4 in water treatment.
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| CN201510433855.8A CN105174407A (en) | 2015-07-21 | 2015-07-21 | Heavy metal precipitator and preparation method therefor and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015774A (en) * | 2018-01-09 | 2019-07-16 | 中国石油天然气股份有限公司 | Rapid petrochemical wastewater treatment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495589A (en) * | 2013-09-18 | 2014-01-08 | 广西丽桂环保科技有限公司 | Electroplating waste slag recycling method |
| CN103523950A (en) * | 2013-09-24 | 2014-01-22 | 中国有色集团（广西）平桂飞碟股份有限公司 | Deep purification method of tungsten smelting wastewater |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495589A (en) * | 2013-09-18 | 2014-01-08 | 广西丽桂环保科技有限公司 | Electroplating waste slag recycling method |
| CN103523950A (en) * | 2013-09-24 | 2014-01-22 | 中国有色集团（广西）平桂飞碟股份有限公司 | Deep purification method of tungsten smelting wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015774A (en) * | 2018-01-09 | 2019-07-16 | 中国石油天然气股份有限公司 | Rapid petrochemical wastewater treatment method |
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Application publication date: 20151223 |