CN111066812A - Sodium hypochlorite disinfectant for drinking water and preparation method thereof - Google Patents
Sodium hypochlorite disinfectant for drinking water and preparation method thereof Download PDFInfo
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- CN111066812A CN111066812A CN201911080470.2A CN201911080470A CN111066812A CN 111066812 A CN111066812 A CN 111066812A CN 201911080470 A CN201911080470 A CN 201911080470A CN 111066812 A CN111066812 A CN 111066812A
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- sodium hypochlorite
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Dentistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Inorganic Chemistry (AREA)
- Agronomy & Crop Science (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the field of disinfectant, and particularly relates to a sodium hypochlorite disinfectant for drinking water and a preparation method thereof, wherein the following solutions are provided, the sodium hypochlorite disinfectant comprises a main material and an auxiliary material, the main material comprises water, a sodium hydroxide solution and liquid chlorine, the auxiliary material comprises chlorine, a sodium carbonate solution and a calcium hydroxide solution, and the main material and the auxiliary material are prepared from the following components in parts by weight: 80-120 parts of water, 6-10 parts of sodium hydroxide solution, 2-4 parts of liquid chlorine, 1-3 parts of chlorine, 2-5 parts of sodium carbonate solution and 3-6 parts of calcium hydroxide solution. Prepare through adding liquid chlorine and chlorine, slowly add liquid chlorine and chlorine under microthermal condition, can obtain more sodium chlorate, guarantee the quality of sodium chlorate, avoided the situation that sodium hypochlorite probably appears decomposing simultaneously under lower temperature, under the lower situation of atmospheric pressure in the sealed tank, can accelerate going on of reaction, incessant stirring simultaneously mixes, can obtain the sodium hypochlorite of maximize.
Description
Technical Field
The invention relates to the technical field of disinfectant, in particular to a sodium hypochlorite disinfectant for drinking water and a preparation method thereof.
Background
The disinfectant is used for killing pathogenic microorganisms on a transmission medium, so that the requirement of harmlessness is met, the pathogenic microorganisms are killed out of a human body, the transmission path of infectious diseases is cut off, and the purpose of controlling the infectious diseases is achieved. The high-efficiency disinfectant can kill all bacteria propagules (including mycobacteria), viruses, fungi, spores thereof and the like, has a certain killing effect on bacterial spores, meets the requirement of high-level disinfection, and comprises chlorine-containing disinfectant, ozone, methyl hydantoin compounds, double-chain quaternary ammonium salt and the like. The intermediate disinfectant can only kill microbes such as mycobacteria, fungi, viruses, bacterial propagules and the like, meets the disinfection requirement and comprises iodine-containing disinfectant, alcohol disinfectant, phenol disinfectant and the like. The low-efficiency disinfectant can only kill bacterial propagules and lipophilic viruses, and meets the requirement of the disinfectant.
At present, disinfectant is frequently added into drinking water in daily life to remove bacilli in the water and ensure the cleanness and sanitation of the drinking water, but the content proportion of sodium hypochlorite in the existing sodium hypochlorite disinfectant in the production process is low, so that a good sterilization effect cannot be achieved, and therefore, the invention of the sodium hypochlorite disinfectant for drinking water and the preparation method thereof is necessary.
Disclosure of Invention
The sodium hypochlorite disinfectant for drinking water and the preparation method thereof provided by the invention solve the problems that the content and specific gravity of sodium hypochlorite in the existing sodium hypochlorite disinfectant in the production process are low, and a good sterilization effect cannot be achieved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the sodium hypochlorite disinfectant for drinking water comprises main materials and auxiliary materials, wherein the main materials comprise water, a sodium hydroxide solution and liquid chlorine, the auxiliary materials comprise chlorine gas, a sodium carbonate solution and a calcium hydroxide solution, and the main materials and the auxiliary materials adopt the following proportions in parts by mass: 80-120 parts of water, 6-10 parts of sodium hydroxide solution, 2-4 parts of liquid chlorine, 1-3 parts of chlorine, 2-5 parts of sodium carbonate solution and 3-6 parts of calcium hydroxide solution.
Preferably, the preparation method of the sodium hypochlorite disinfectant for drinking water specifically comprises the following preparation steps:
the method comprises the following steps: adding water into a double-layer sealed tank, connecting an air pump and a refrigerator outside the sealed tank, refrigerating and depressurizing liquid in the sealed tank, and then slowly adding a sodium hydroxide solution into the water;
step two: continuously stirring the liquid in the sealed tank, slowly dripping liquid chlorine in the stirring process, continuously stirring for 30min after finishing dripping, slowly filling chlorine in the sealed tank in the dripping process, and then standing for 2-4 h;
step three: adding a sodium carbonate solution and a calcium hydroxide solution into the sealed tank, stirring the liquid in the reaction tank at a speed of 20r/min after the addition is finished, obtaining a sodium hypochlorite disinfectant after the stirring is finished, and filtering the sodium hypochlorite disinfectant for use.
Preferably, the seal tank in the first step is arranged in a double-layer mode, the inner cavity of the seal tank is filled with a refrigerant, the refrigerator cools the refrigerator in the inner cavity at the outer side and then cools liquid in the seal tank, the top of the seal tank is communicated with the air pump and the material through hole, and the stirring device is arranged inside the seal tank.
Preferably, the stirring speed in the second step is 30r/min, and the dropping speed of the liquid chlorine is 50-150 kg/h.
Preferably, the preparation is carried out by keeping the temperature in the sealed tank at 18-28 ℃ and the air pressure in the sealed tank at 1.9-2.6kPa during the preparation process.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the preparation is carried out by adding the liquid chlorine and the chlorine gas, the liquid chlorine and the chlorine gas are slowly added under the condition of low temperature, more sodium chlorate can be obtained, the quality of the sodium chlorate is ensured, the condition that the sodium hypochlorite is possibly decomposed is avoided at lower temperature, the reaction can be accelerated under the condition that the air pressure in the sealed tank is lower, and meanwhile, the uninterrupted stirring and mixing are carried out, so that the maximized sodium hypochlorite can be obtained;
2. in the present invention, Ca can be produced by adding a sodium carbonate solution and a calcium hydroxide solution, and a small amount of the sodium hydroxide solution and the sodium carbonate solution may be in contact with the remaining incompletely reacted chemicals in the liquid and then react2CO3And precipitating, and slowly forming a sodium hypochlorite solution after the sodium hypochlorite solution is reduced to the bottom of the sealing tank, so that the content of the sodium hypochlorite is ensured, and more sodium hypochlorite solution is obtained at low cost.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The first embodiment is as follows:
the sodium hypochlorite disinfectant for drinking water comprises main materials and auxiliary materials, wherein the main materials comprise water, a sodium hydroxide solution and liquid chlorine, the auxiliary materials comprise chlorine gas, a sodium carbonate solution and a calcium hydroxide solution, and the main materials and the auxiliary materials adopt the following proportions in parts by mass: 80 parts of water, 6 parts of sodium hydroxide solution, 2 parts of liquid chlorine, 1 part of chlorine, 2 parts of sodium carbonate solution and 3 parts of calcium hydroxide solution.
A preparation method of sodium hypochlorite disinfectant for drinking water is provided, wherein the temperature in a sealed tank is kept at 18 ℃ and the air pressure in the sealed tank is kept within 1.9kPa during the preparation process, and the preparation method specifically comprises the following preparation steps:
the method comprises the following steps: adding water into a double-layer sealing tank, wherein an air pump and a refrigerator are connected to the outer side of the sealing tank, refrigerating and depressurizing liquid in the sealing tank, the sealing tank is arranged in a double-layer mode, a refrigerant is filled in an inner cavity of the sealing tank, the refrigerator refrigerates the liquid in the sealing tank after refrigerating the refrigerator in the inner cavity at the outer side, the top of the sealing tank is communicated with the air pump and a material through hole, a stirring device is arranged inside the sealing tank, and then sodium hydroxide solution is slowly added into the water;
step two: continuously stirring the liquid in the sealed tank, slowly dripping liquid chlorine in the stirring process, wherein the stirring speed in the second step is 30r/min, continuously stirring for 30min after the dripping is finished, slowly filling chlorine gas into the sealed tank in the dripping process, wherein the dripping speed of the liquid chlorine is 50kg/h, and then standing for 2 h;
step three: adding a sodium carbonate solution and a calcium hydroxide solution into the sealed tank, stirring the liquid in the reaction tank at a speed of 20r/min after the addition is finished, obtaining a sodium hypochlorite disinfectant after the stirring is finished, and filtering the sodium hypochlorite disinfectant for use.
Example two:
the sodium hypochlorite disinfectant for drinking water comprises main materials and auxiliary materials, wherein the main materials comprise water, a sodium hydroxide solution and liquid chlorine, the auxiliary materials comprise chlorine gas, a sodium carbonate solution and a calcium hydroxide solution, and the main materials and the auxiliary materials adopt the following proportions in parts by mass: 120 parts of water, 10 parts of sodium hydroxide solution, 4 parts of liquid chlorine, 3 parts of chlorine, 5 parts of sodium carbonate solution and 6 parts of calcium hydroxide solution.
A preparation method of sodium hypochlorite disinfectant for drinking water is provided, wherein the temperature in a sealed tank is kept at 28 ℃ and the air pressure in the sealed tank is kept within 2.6kPa during the preparation process, and the preparation method specifically comprises the following preparation steps:
the method comprises the following steps: adding water into a double-layer sealing tank, wherein an air pump and a refrigerator are connected to the outer side of the sealing tank, refrigerating and depressurizing liquid in the sealing tank, the sealing tank is arranged in a double-layer mode, a refrigerant is filled in an inner cavity of the sealing tank, the refrigerator refrigerates the liquid in the sealing tank after refrigerating the refrigerator in the inner cavity at the outer side, the top of the sealing tank is communicated with the air pump and a material through hole, a stirring device is arranged inside the sealing tank, and then sodium hydroxide solution is slowly added into the water;
step two: continuously stirring the liquid in the sealed tank, slowly dripping liquid chlorine in the stirring process, wherein the stirring speed in the second step is 30r/min, continuously stirring for 30min after the dripping is finished, slowly filling chlorine gas into the sealed tank in the dripping process, wherein the dripping speed of the liquid chlorine is 150kg/h, and then standing for 2-4 h;
step three: adding a sodium carbonate solution and a calcium hydroxide solution into the sealed tank, stirring the liquid in the reaction tank at a speed of 20r/min after the addition is finished, obtaining a sodium hypochlorite disinfectant after the stirring is finished, and filtering the sodium hypochlorite disinfectant for use.
Example three:
the sodium hypochlorite disinfectant for drinking water comprises main materials and auxiliary materials, wherein the main materials comprise water, a sodium hydroxide solution and liquid chlorine, the auxiliary materials comprise chlorine gas, a sodium carbonate solution and a calcium hydroxide solution, and the main materials and the auxiliary materials adopt the following proportions in parts by mass: 100 parts of water, 8 parts of sodium hydroxide solution, 3 parts of liquid chlorine, 2 parts of chlorine gas, 4 parts of sodium carbonate solution and 4 parts of calcium hydroxide solution.
A preparation method of sodium hypochlorite disinfectant for drinking water is provided, wherein the temperature in a sealed tank is kept at 23 ℃ and the air pressure in the sealed tank is kept within 2.3kPa during the preparation process, and the preparation method specifically comprises the following preparation steps:
the method comprises the following steps: adding water into a double-layer sealing tank, wherein an air pump and a refrigerator are connected to the outer side of the sealing tank, refrigerating and depressurizing liquid in the sealing tank, the sealing tank is arranged in a double-layer mode, a refrigerant is filled in an inner cavity of the sealing tank, the refrigerator refrigerates the liquid in the sealing tank after refrigerating the refrigerator in the inner cavity at the outer side, the top of the sealing tank is communicated with the air pump and a material through hole, a stirring device is arranged inside the sealing tank, and then sodium hydroxide solution is slowly added into the water;
step two: continuously stirring the liquid in the sealed tank, slowly dripping liquid chlorine in the stirring process, wherein the stirring speed in the second step is 30r/min, continuously stirring for 30min after the dripping is finished, slowly filling chlorine gas into the sealed tank in the dripping process, wherein the dripping speed of the liquid chlorine is 100kg/h, and then standing for 3 h;
step three: adding a sodium carbonate solution and a calcium hydroxide solution into the sealed tank, stirring the liquid in the reaction tank at a speed of 20r/min after the addition is finished, obtaining a sodium hypochlorite disinfectant after the stirring is finished, and filtering the sodium hypochlorite disinfectant for use.
Example four:
according to the sodium hypochlorite disinfectant for drinking water prepared in the embodiment, a sterilization test is carried out within the range of 10.6-11.0% of available chlorine, a test strain is escherichia coli, meanwhile, a common drinking water disinfectant in the current market is selected for a comparison test, the comparison test is carried out for 3 times at the temperature of 20 ℃, and the specific data after averaging are as follows:
according to the data, the sodium hypochlorite disinfectant for drinking water provided by the invention has the advantages that the sterilization effect is obvious in a short time, no bacterial strain can grow and propagate, the sterilization effect is good, and the efficiency is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a sodium hypochlorite antiseptic solution for drinking water, includes major ingredient and auxiliary material, its characterized in that, the major ingredient includes water, sodium hydroxide solution and liquid chlorine, the auxiliary material includes chlorine, sodium carbonate solution and calcium hydroxide solution, each component adopts following ratio according to the part by mass in major ingredient and the auxiliary material: 80-120 parts of water, 6-10 parts of sodium hydroxide solution, 2-4 parts of liquid chlorine, 1-3 parts of chlorine, 2-5 parts of sodium carbonate solution and 3-6 parts of calcium hydroxide solution.
2. A preparation method of a sodium hypochlorite disinfectant for drinking water is characterized by comprising the following preparation steps:
the method comprises the following steps: adding water into a double-layer sealed tank, connecting an air pump and a refrigerator outside the sealed tank, refrigerating and depressurizing liquid in the sealed tank, and then slowly adding a sodium hydroxide solution into the water;
step two: continuously stirring the liquid in the sealed tank, slowly dripping liquid chlorine in the stirring process, continuously stirring for 30min after finishing dripping, slowly filling chlorine in the sealed tank in the dripping process, and then standing for 2-4 h;
step three: adding a sodium carbonate solution and a calcium hydroxide solution into the sealed tank, stirring the liquid in the reaction tank at a speed of 20r/min after the addition is finished, obtaining a sodium hypochlorite disinfectant after the stirring is finished, and filtering the sodium hypochlorite disinfectant for use.
3. The method for preparing sodium hypochlorite disinfectant for drinking water as claimed in claim 2, wherein in the first step, the sealed tank is arranged in a double-layer manner, the inner cavity of the sealed tank is filled with refrigerant, the refrigerator cools the liquid in the sealed tank after cooling the refrigerator in the inner cavity at the outer side, the top of the sealed tank is communicated with the air pump and the material inlet, and the sealed tank is internally provided with the stirring device.
4. The method for preparing sodium hypochlorite disinfectant solution for drinking water as claimed in claim 2, wherein in the second step, the stirring speed is 30r/min, and the dropping speed of the liquid chlorine is 50-150 kg/h.
5. The method for preparing sodium hypochlorite disinfectant solution for drinking water as claimed in claim 2, wherein the temperature in the sealed tank is maintained at 18-28 ℃ and the pressure in the sealed tank is maintained at 1.9-2.6kPa during the preparation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080470.2A CN111066812A (en) | 2019-11-07 | 2019-11-07 | Sodium hypochlorite disinfectant for drinking water and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911080470.2A CN111066812A (en) | 2019-11-07 | 2019-11-07 | Sodium hypochlorite disinfectant for drinking water and preparation method thereof |
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| CN111066812A true CN111066812A (en) | 2020-04-28 |
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| CN201911080470.2A Pending CN111066812A (en) | 2019-11-07 | 2019-11-07 | Sodium hypochlorite disinfectant for drinking water and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100393A (en) * | 2021-11-25 | 2022-03-01 | 吉林省益能科技有限公司 | Preparation method of sodium hypochlorite composite solution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101683970A (en) * | 2008-09-26 | 2010-03-31 | 天津市黎虹化工有限公司 | Alkali liquid chlorination method for producing sodium hypochlorite solution with high concentration |
| CN101683968A (en) * | 2008-09-26 | 2010-03-31 | 天津市黎虹化工有限公司 | Self-cooling method for producing sodium hypochlorite solution |
| CN102701157A (en) * | 2012-06-19 | 2012-10-03 | 北京万水净水剂有限公司 | Method and device for producing sodium hypochlorite |
| CN103342345A (en) * | 2013-07-15 | 2013-10-09 | 天津市郁峰化工有限公司 | Method for producing calcium hypochlorite by using sodium method |
-
2019
- 2019-11-07 CN CN201911080470.2A patent/CN111066812A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101683970A (en) * | 2008-09-26 | 2010-03-31 | 天津市黎虹化工有限公司 | Alkali liquid chlorination method for producing sodium hypochlorite solution with high concentration |
| CN101683968A (en) * | 2008-09-26 | 2010-03-31 | 天津市黎虹化工有限公司 | Self-cooling method for producing sodium hypochlorite solution |
| CN102701157A (en) * | 2012-06-19 | 2012-10-03 | 北京万水净水剂有限公司 | Method and device for producing sodium hypochlorite |
| CN103342345A (en) * | 2013-07-15 | 2013-10-09 | 天津市郁峰化工有限公司 | Method for producing calcium hypochlorite by using sodium method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100393A (en) * | 2021-11-25 | 2022-03-01 | 吉林省益能科技有限公司 | Preparation method of sodium hypochlorite composite solution |
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