CN111099685A - Heavy metal stabilizer for water quality treatment - Google Patents
Heavy metal stabilizer for water quality treatment Download PDFInfo
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- CN111099685A CN111099685A CN201811255240.0A CN201811255240A CN111099685A CN 111099685 A CN111099685 A CN 111099685A CN 201811255240 A CN201811255240 A CN 201811255240A CN 111099685 A CN111099685 A CN 111099685A
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- heavy metal
- sodium hydroxide
- metal stabilizer
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a heavy metal stabilizer for water quality treatment, which is prepared from the following components in parts by weight: acrylic acid monomer: 35-60g, distilled water: 400-800ml, isopropyl alcohol (IPA): 25-50ml, dodecyl mercaptan: 10-15ml, sodium hydroxide (NaOH): 18-28ml, ammonium sulfate ((NH 4)2SO 4): 10-18g, sodium chloride (NaCl): 50-80ml, the balance being ethylene propylene rubber (EPM) and inevitable impurities, the content of distilled water is not more than 800ml, the content of Isopropanol (IPA) is not more than 50ml, and the content of sodium hydroxide (NaOH) is not more than 28 ml. The invention has the beneficial effects that: according to the heavy metal stabilizer, an acrylic monomer, sodium hydroxide, ammonium sulfate and sodium chloride are adjusted according to a certain proportion, dodecyl mercaptan is added as a chain transfer agent, so that a novel heavy metal stabilizer is prepared, and the biological effectiveness and the mobility of the heavy metal stabilizer in a water quality environment are reduced through a series of reactions such as adsorption, complexation, precipitation, ion exchange, redox and the like.
Description
Technical Field
The invention relates to a heavy metal stabilizer, in particular to a heavy metal stabilizer for water quality treatment.
Background
The heavy metal stabilizer is suitable for treating sewage containing heavy metals such as Cr, Ni, Pb, Cu, Hg, Cd and the like in the industries such as electroplating, electronics, metallurgy and the like. For sewage which can not reach the standard by adopting a conventional alkali neutralization method, the medicament can reach national and industrial standards. And the treatment process is not influenced by the pH of raw water, and simultaneously, heavy metal salts can be separated and recovered, so that the resource treatment is finally realized.
Disclosure of Invention
The invention aims to provide a heavy metal stabilizer for water quality treatment, which solves the problems in the background technology.
In order to solve the technical problems, the invention provides a heavy metal stabilizer for water quality treatment, which comprises the following components in percentage by weight: acrylic acid monomer: 35-60g, distilled water: 400-800ml, isopropyl alcohol (IPA): 25-50ml, dodecyl mercaptan: 10-15ml, sodium hydroxide (NaOH): 18-28ml, ammonium sulfate ((NH 4)2SO 4): 10-18g, sodium chloride (NaCl): 50-80ml, and the balance of ethylene propylene rubber (EPM) and inevitable impurities.
The content of the acrylic acid monomer is not more than 60g, the content of the distilled water is not more than 800ml, the content of the Isopropanol (IPA) is not more than 50ml, the content of the dodecyl mercaptan is not more than 15ml, the content of the sodium hydroxide (NaOH) is not more than 28ml, the content of the ammonium sulfate ((NH 4)2SO 4) is not more than 18g, the content of the sodium chloride (NaCl) is not more than 80ml, and the contents of the ethylene propylene rubber (EPM) and the inevitable impurities are not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, a sufficient amount of acrylic acid monomer, isopropyl alcohol (IPA), dodecyl mercaptan, 30% sodium hydroxide (NaOH), ammonium sulfate ((NH 4)2SO 4), and sodium chloride (NaCl) solution were prepared. Firstly, placing an acrylic monomer in a melting furnace, heating to 70-80 ℃; after heating for 1.5 hours, the mixture was stirred by a tungsten rod until the acrylic monomer was completely melted into a liquid.
The second step is that: then placing the acrylic acid liquid into a three-neck flask, adding 50ml of distilled water, continuously stirring by a tungsten rod, keeping the temperature at 70-80 ℃, dropwise adding a proper amount of Isopropanol (IPA) after 20 minutes, placing for 20 minutes, neutralizing by a sodium hydroxide aqueous solution with a certain concentration to be neutral, stopping the reaction, and obtaining a product which is a light yellow transparent viscous liquid.
The third step: sequentially adding dodecyl mercaptan and 30% sodium hydroxide (NaOH) into the light yellow transparent viscous liquid, continuously heating to stabilize the temperature at 180-250 ℃, maintaining the temperature for 2.5 hours, then adding ammonium sulfate ((NH 4)2SO 4) and sodium chloride (NaCl) into the mixed solution, keeping the temperature at 200-250 ℃ for 3-6 hours, and cooling to obtain the suitable heavy metal stabilizer.
The invention has the beneficial effects that: according to the heavy metal stabilizer, an acrylic monomer, sodium hydroxide, ammonium sulfate and sodium chloride are adjusted according to a certain proportion, dodecyl mercaptan is added as a chain transfer agent, so that a novel heavy metal stabilizer is prepared, and the biological effectiveness and the mobility of the heavy metal stabilizer in a water quality environment are reduced and the reduction rate of the content of heavy metal elements in water quality is increased through a series of reactions such as adsorption, complexation, precipitation, ion exchange, redox and the like.
Detailed Description
The following further description is provided in conjunction with the detailed description, but the detailed description below should not be construed as limiting the invention. Various modifications and variations obvious to those skilled in the art, which can be made on the basis of the present invention, should be within the scope of the present invention.
Example 1:
the invention provides a heavy metal stabilizer for water quality treatment, which comprises the following components in percentage by weight: acrylic acid monomer: 35-60g, distilled water: 400-800ml, isopropyl alcohol (IPA): 25-50ml, dodecyl mercaptan: 10-15ml, sodium hydroxide (NaOH): 18-28ml, ammonium sulfate ((NH 4)2SO 4): 10-18g, sodium chloride (NaCl): 50-80ml, and the balance of ethylene propylene rubber (EPM) and inevitable impurities.
The content of the acrylic acid monomer is not more than 60g, the content of the distilled water is not more than 800ml, the content of the Isopropanol (IPA) is not more than 50ml, the content of the dodecyl mercaptan is not more than 15ml, the content of the sodium hydroxide (NaOH) is not more than 28ml, the content of the ammonium sulfate ((NH 4)2SO 4) is not more than 18g, the content of the sodium chloride (NaCl) is not more than 80ml, and the contents of the ethylene propylene rubber (EPM) and the inevitable impurities are not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, a sufficient amount of acrylic acid monomer, isopropyl alcohol (IPA), dodecyl mercaptan, 30% sodium hydroxide (NaOH), ammonium sulfate ((NH 4)2SO 4), and sodium chloride (NaCl) solution were prepared. Firstly, placing an acrylic monomer in a melting furnace, heating to 70-80 ℃; after heating for 1.5 hours, the mixture was stirred by a tungsten rod until the acrylic monomer was completely melted into a liquid.
The second step is that: then placing the acrylic acid liquid into a three-neck flask, adding 50ml of distilled water, continuously stirring by a tungsten rod, keeping the temperature at 70-80 ℃, dropwise adding a proper amount of Isopropanol (IPA) after 20 minutes, placing for 20 minutes, neutralizing by a sodium hydroxide aqueous solution with a certain concentration to be neutral, stopping the reaction, and obtaining a product which is a light yellow transparent viscous liquid.
The third step: sequentially adding dodecyl mercaptan and 30% sodium hydroxide (NaOH) into the light yellow transparent viscous liquid, continuously heating to stabilize the temperature at 180-250 ℃, maintaining the temperature for 2.5 hours, then adding ammonium sulfate ((NH 4)2SO 4) and sodium chloride (NaCl) into the mixed solution, keeping the temperature at 200-250 ℃ for 3-6 hours, and cooling to obtain the suitable heavy metal stabilizer. Example 2:
the invention provides a heavy metal stabilizer for water quality treatment, which comprises the following components in percentage by weight: acrylic acid monomer: 35-60g, distilled water: 400-800ml, isopropyl alcohol (IPA): 25-50ml, dodecyl mercaptan: 10-15ml, sodium hydroxide (NaOH): 18-28ml, ammonium sulfate ((NH 4)2SO 4): 10-18g, sodium chloride (NaCl): 50-80ml, and the balance of ethylene propylene rubber (EPM) and inevitable impurities.
The content of the acrylic acid monomer is not more than 60g, the content of the distilled water is not more than 800ml, the content of the Isopropanol (IPA) is not more than 50ml, the content of the dodecyl mercaptan is not more than 15ml, the content of the sodium hydroxide (NaOH) is not more than 28ml, the content of the ammonium sulfate ((NH 4)2SO 4) is not more than 18g, the content of the sodium chloride (NaCl) is not more than 80ml, and the contents of the ethylene propylene rubber (EPM) and the inevitable impurities are not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, a sufficient amount of acrylic acid monomer, isopropyl alcohol (IPA), dodecyl mercaptan, 40% sodium hydroxide (NaOH), ammonium sulfate ((NH 4)2SO 4), and sodium chloride (NaCl) solution were prepared. Firstly, placing an acrylic monomer in a melting furnace, heating to 80-90 ℃; after heating for 2.5 hours, the mixture was stirred by a tungsten rod until the acrylic monomer was completely melted into a liquid.
The second step is that: then placing the acrylic acid liquid into a three-neck flask, adding 50ml of distilled water, continuously stirring by a tungsten rod, keeping the temperature at 80-90 ℃, dropwise adding a proper amount of Isopropanol (IPA) after 30 minutes, placing for 30 minutes, neutralizing by a sodium hydroxide aqueous solution with a certain concentration to be neutral, stopping reaction, and obtaining a product which is a light yellow transparent viscous liquid.
The third step: sequentially adding dodecyl mercaptan and 30% sodium hydroxide (NaOH) into the light yellow transparent viscous liquid, continuously heating to stabilize the temperature at 250-350 ℃, maintaining the temperature for 3.5 hours, then adding ammonium sulfate ((NH 4)2SO 4) and sodium chloride (NaCl) into the mixed solution, keeping the temperature at 250-350 ℃ for 6-9 hours, and cooling to obtain the suitable heavy metal stabilizer. Example 3:
the invention provides a heavy metal stabilizer for water quality treatment, which comprises the following components in percentage by weight: acrylic acid monomer: 35-60g, distilled water: 400-800ml, isopropyl alcohol (IPA): 25-50ml, dodecyl mercaptan: 10-15ml, sodium hydroxide (NaOH): 18-28ml, ammonium sulfate ((NH 4)2SO 4): 10-18g, sodium chloride (NaCl): 50-80ml, and the balance of ethylene propylene rubber (EPM) and inevitable impurities.
The content of the acrylic acid monomer is not more than 60g, the content of the distilled water is not more than 800ml, the content of the Isopropanol (IPA) is not more than 50ml, the content of the dodecyl mercaptan is not more than 15ml, the content of the sodium hydroxide (NaOH) is not more than 28ml, the content of the ammonium sulfate ((NH 4)2SO 4) is not more than 18g, the content of the sodium chloride (NaCl) is not more than 80ml, and the contents of the ethylene propylene rubber (EPM) and the inevitable impurities are not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, a sufficient amount of acrylic acid monomer, isopropyl alcohol (IPA), dodecyl mercaptan, 45% sodium hydroxide (NaOH), ammonium sulfate ((NH 4)2SO 4), and sodium chloride (NaCl) solution were prepared. Firstly, placing an acrylic monomer in a melting furnace, heating to 90-100 ℃; after heating for 3.5 hours, the mixture was stirred by a tungsten rod until the acrylic monomer was completely melted into a liquid.
The second step is that: then placing the acrylic acid liquid into a three-neck flask, adding 50ml of distilled water, continuously stirring by a tungsten rod, keeping the temperature at 100-120 ℃, dropwise adding a proper amount of Isopropanol (IPA) after 40 minutes, placing for 40 minutes, neutralizing by a sodium hydroxide aqueous solution with a certain concentration to be neutral, stopping the reaction, and obtaining a product which is a light yellow transparent viscous liquid.
The third step: sequentially adding dodecyl mercaptan and 30% sodium hydroxide (NaOH) into the light yellow transparent viscous liquid, continuously heating, stabilizing the temperature at 350-400 ℃, maintaining the temperature for 4.5 hours, then adding ammonium sulfate ((NH 4)2SO 4) and sodium chloride (NaCl) into the mixed solution, keeping the temperature at 350-400 ℃ for 9-12 hours, and cooling to obtain the suitable heavy metal stabilizer.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (3)
1. A heavy metal stabilizer for water quality treatment is characterized by comprising the following components in percentage by weight: acrylic acid monomer: 35-60g, distilled water: 400-800ml, isopropyl alcohol (IPA): 25-50ml, dodecyl mercaptan: 10-15ml, sodium hydroxide (NaOH): 18-28ml, ammonium sulfate ((NH 4)2SO 4): 10-18g, sodium chloride (NaCl): 50-80ml, and the balance of ethylene propylene rubber (EPM) and inevitable impurities.
2. A heavy metal stabilizer for water quality treatment according to claim 1, characterized in that: the content of the acrylic acid monomer is not more than 60g, the content of the distilled water is not more than 800ml, the content of the Isopropanol (IPA) is not more than 50ml, the content of the dodecyl mercaptan is not more than 15ml, the content of the sodium hydroxide (NaOH) is not more than 28ml, the content of the ammonium sulfate ((NH 4)2SO 4) is not more than 18g, the content of the sodium chloride (NaCl) is not more than 80ml, and the contents of the ethylene propylene rubber (EPM) and the inevitable impurities are not more than 0.0013.
3. A method for preparing a heavy metal stabilizer for water quality treatment according to any one of claims 1 to 2, characterized in that: the method comprises the following steps:
the first step is as follows: firstly, preparing sufficient acrylic monomer, Isopropanol (IPA), dodecyl mercaptan, 30% sodium hydroxide (NaOH), ammonium sulfate ((NH 4)2SO 4) and sodium chloride (NaCl) solution; firstly, placing an acrylic monomer in a melting furnace, heating to 70-80 ℃; heating for 1.5 hours, and continuously stirring by a tungsten rod until the acrylic monomer is completely melted into liquid;
the second step is that: then placing the acrylic acid liquid into a three-neck flask, then adding 50ml of distilled water, continuously stirring by a tungsten rod, keeping the temperature at 70-80 ℃, after 20 minutes, dropwise adding a proper amount of Isopropanol (IPA), placing for 20 minutes, neutralizing by using a sodium hydroxide aqueous solution with a certain concentration to be neutral, stopping the reaction, and obtaining a product which is a light yellow transparent viscous liquid;
the third step: sequentially adding dodecyl mercaptan and 30% sodium hydroxide (NaOH) into the light yellow transparent viscous liquid, continuously heating to stabilize the temperature at 180-250 ℃, maintaining the temperature for 2.5 hours, then adding ammonium sulfate ((NH 4)2SO 4) and sodium chloride (NaCl) into the mixed solution, keeping the temperature at 200-250 ℃ for 3-6 hours, and cooling to obtain the suitable heavy metal stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811255240.0A CN111099685A (en) | 2018-10-26 | 2018-10-26 | Heavy metal stabilizer for water quality treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811255240.0A CN111099685A (en) | 2018-10-26 | 2018-10-26 | Heavy metal stabilizer for water quality treatment |
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| CN111099685A true CN111099685A (en) | 2020-05-05 |
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| CN201811255240.0A Pending CN111099685A (en) | 2018-10-26 | 2018-10-26 | Heavy metal stabilizer for water quality treatment |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040082744A1 (en) * | 1999-08-27 | 2004-04-29 | Reinhold Klipper | Process for preparing monodisperse ion exchangers having chelating functional |
| CN103497267A (en) * | 2013-09-04 | 2014-01-08 | 南京理工大学 | Narrow-distribution middle-low-molecular-weight sodium polyacrylate preparation method |
-
2018
- 2018-10-26 CN CN201811255240.0A patent/CN111099685A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040082744A1 (en) * | 1999-08-27 | 2004-04-29 | Reinhold Klipper | Process for preparing monodisperse ion exchangers having chelating functional |
| CN103497267A (en) * | 2013-09-04 | 2014-01-08 | 南京理工大学 | Narrow-distribution middle-low-molecular-weight sodium polyacrylate preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 丁建果: "低分子量聚丙烯酸钠合成研究及其应用", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
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Application publication date: 20200505 |