CN111701969A - Turnover barrel cleaning and disinfecting process and device for production of barreled drinking water - Google Patents
Turnover barrel cleaning and disinfecting process and device for production of barreled drinking water Download PDFInfo
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- CN111701969A CN111701969A CN202010481775.0A CN202010481775A CN111701969A CN 111701969 A CN111701969 A CN 111701969A CN 202010481775 A CN202010481775 A CN 202010481775A CN 111701969 A CN111701969 A CN 111701969A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
- B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
- A61L2/186—Peroxide solutions
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Abstract
The invention discloses a cleaning and disinfecting process and a device for a turnover barrel for producing barreled drinking water, wherein the interior of the turnover barrel is cleaned and disinfected by using a cleaning and disinfecting process combining a hot sodium hydroxide solution and a peracetic acid solution at 12 stations, and the cleaning and disinfecting process is provided with the cleaning and disinfecting processes of hot sodium hydroxide solution high-pressure backwashing, water circulation high-pressure backwashing, draining, peracetic acid solution high-pressure backwashing, finished water high-pressure backwashing and draining. The inside of the turnover barrel is cleaned and disinfected by the combination of the hot sodium hydroxide solution and the peroxyacetic acid disinfectant, so that the turnover barrel has a very good sterilization effect; the problem of present barreled drinking water production turnover bucket cleaning and disinfecting technology not enough is solved, the problem that barreled drinking water microorganism seriously exceeds standard is also thoroughly solved, the quality of barreled drinking water is guaranteed to be qualified, and the healthy development of barreled drinking water production industry and the healthy of consumers are guaranteed.
Description
Technical Field
The invention belongs to the technical field of cleaning and disinfecting of barreled drinking water production, and particularly relates to a cleaning and disinfecting process and a cleaning and disinfecting device for a turnover barrel for producing the barreled drinking water.
Background
Along with the rapid development of national economy of China and the continuous improvement of the living standard of people, the barreled drinking water is favored by consumers due to the characteristics of convenience, rapidness and good taste, and the demand for the barreled drinking water is continuously increased, and the rapid development of the barreled drinking water industry is promoted and pulled. However, through the drinking water production industry, the development is unbalanced, production enterprises are more, the scales are different, national supervision and spot inspection finds that the bottled drinking water has high disqualification rate, wherein the disqualification rate of a pathogenic microorganism, namely the pseudomonas aeruginosa project is more than 20%, foreign data are searched, and the pseudomonas aeruginosa is an important pathogenic bacterium under water source and food source conditions, is widely distributed and has strong resistance to adverse environment, has various pathogenic factors, is a complete pathogenic bacterium causing acute intestinal diseases and skin inflammation of human beings, and is likely to cause diseases and have health risks if drinking water containing the pseudomonas aeruginosa for a long time. Through analytical research, the main reason why the pseudomonas aeruginosa is unqualified is that the cleaning and disinfection of the turnover barrel used in production are not thorough. Research finds that most barreled drinking water production enterprises use chlorine dioxide disinfectant flushing water for flushing at present, and the concentration, the disinfection time and the frequency of the disinfectant have no standard basis, and the process control is not strict, so that microorganisms in the barreled drinking water are unqualified. Experimental research proves that pathogenic microorganisms 'pseudomonas aeruginosa' cannot be thoroughly killed if low-concentration chlorine dioxide disinfectant is used for disinfection; if the high-concentration chlorine dioxide disinfectant is used for disinfection, the residual chlorine in the barreled drinking water is unqualified.
Disclosure of Invention
The invention aims to provide a cleaning and disinfecting process and a device for a turnover barrel for producing barreled drinking water, wherein the interior of the turnover barrel is cleaned and disinfected by using a cleaning and disinfecting process combining a hot sodium hydroxide solution and a peracetic acid solution at 12 stations, so that the cleaning and disinfecting process has a very good cleaning and disinfecting effect. The problem that the cleaning and disinfecting process of the turnover barrel for producing the barreled drinking water is insufficient at present is solved, the problem that microbial pathogenic bacteria of the barreled drinking water seriously exceed the standard is thoroughly solved, the quality of the barreled drinking water is qualified, and the healthy development of the production industry of the barreled drinking water and the health of consumers are guaranteed.
The invention has the main innovation points that: (1) the cleaning and disinfection process of the invention uses sodium hydroxide solution heated to a certain temperature for cleaning, which can not only effectively clean, but also thoroughly kill pathogenic microorganism 'pseudomonas aeruginosa'; (2) the cleaning and disinfecting process of the invention uses peracetic acid solution with a certain concentration for disinfection, can further kill alkali-resistant microorganisms, and keeps the aseptic state of the turnover barrel. (3) The cleaning and disinfecting process can thoroughly and effectively remove microorganisms in the turnover barrel and ensure the quality safety of the barreled water by the combined action of thermokalite and disinfectant and the arrangement of 12 stations.
The invention provides a cleaning and disinfecting process of a turnover barrel for producing barreled drinking water, which comprises the following process flows of hot sodium hydroxide solution high-pressure back washing twice → water circulation washing once → draining → peroxyacetic acid disinfectant high-pressure back washing four times → draining → finished water washing twice → draining.
In the process provided by the invention, the reason that the hot sodium hydroxide solution is back-flushed under high pressure twice is as follows: the microorganism 'pseudomonas aeruginosa' in the turnover barrel is mainly disinfected and sterilized according to the hot sodium hydroxide solution, and can be thoroughly sterilized twice through experimental research. The reason why the high-pressure back washing of the peroxyacetic acid disinfectant is set for four times is that: according to the fact that the peroxyacetic acid disinfectant has strong oxidizing property, other bacteria and fungi in the turnover barrel can be disinfected and sterilized, and through experimental research, the disinfection can be thoroughly carried out for four times.
The process specifically comprises the following steps:
(1) high-pressure backwashing of a hot sodium hydroxide solution:
1 sodium hydroxide solution storage tanks or tanks are integrated with the automatic cleaning and disinfecting device, and high-pressure back washing is carried out twice;
the sodium hydroxide storage solution tank or tank is arranged below the automatic cleaning and disinfecting device and is provided with an automatic heating and pressurizing device; the mass concentration of the hot sodium hydroxide solution is 0.2-0.5%, the temperature is 50-60 ℃, the pressure is more than 0.25 MPa, and the flushing time is 14-17s for each station.
(2) Water circulation flushing:
the water is a pre-filled finished product water which can be recycled, and 1 finished product water tank or tank is integrated with automatic filling equipment and is provided with an automatic heating and pressurizing device; washing once by water circulation; the water washing pressure is more than 0.25 MPa, and the washing time is 14-17 s; the purpose of this step is to flush the sodium hydroxide residual liquor.
(3) Draining:
and a chain transmission turnover bucket integrated with the automatic filling equipment is inverted for water control for 14-17s, so that residual water in the turnover bucket is drained.
(4) High-pressure backwashing of a peroxyacetic acid disinfectant:
2 peroxyacetic acid disinfectant storage tanks or tanks are integrated with automatic filling equipment, and high-pressure backwashing is carried out for four times;
the peroxyacetic acid disinfectant storage tank or tank is provided with an automatic heating and pressurizing device. The concentration of the peroxyacetic acid disinfectant is 600 mg/L-800 mg/L, the pressure is more than 0.25 MPa, and the flushing time is 14-17s for each station.
(5) Draining:
and a chain transmission turnover barrel integrated with the automatic filling equipment is inverted for water control for 14-17s, so that residual peracetic acid disinfectant in the turnover barrel is drained.
(6) Finished product water washing:
the water is pre-filled finished product water which can not be recycled, 1 storage water tank or tank is integrated with automatic filling equipment, and the automatic filling equipment is provided with an automatic heating and pressurizing device. Back washing twice with finished water under high pressure: the water washing pressure is more than 0.25 MPa, and the washing time is 14-17 s.
(7) Draining:
and a chain transmission turnover bucket integrated with the automatic filling equipment is inverted for water control for 14-17s, so that residual water in the turnover bucket is drained.
In the invention, after the inner brush and the outer brush are pre-cleaned, the turnover barrel is conveyed and lifted by the chain conveying device of the cleaning and sterilizing equipment integrated with the automatic filling equipment, so that the opening of the turnover barrel is downwards and vertically arranged in the clamping seat, the opening of the turnover barrel is kept to be vertically aligned with the nozzles of the used hot sodium hydroxide cleaning solution, water and peracetic acid disinfectant, and the control switch is started to perform internal cleaning and sterilizing on the turnover barrel. The parameters and methods of the cleaning and disinfecting process are shown in Table 1.
TABLE 1 cleaning and sterilizing Process parameters and methods
Based on the process, the invention provides a cleaning and disinfecting device for a turnover bucket for barreled drinking water production, which comprises 12 turnover bucket stations, wherein the first station and the second station are respectively communicated with a hot sodium hydroxide solution tank, the third station is connected with a first finished product water tank through a pump, and the third station and the fourth station are connected with the first finished product water tank through pipelines (circular washing); the fifth station, the sixth station, the seventh station and the eighth station are respectively connected with a peracetic acid disinfectant tank through pumps, the fifth station to the ninth station are connected with the peracetic acid disinfectant tank through pipelines (circularly flushed), the tenth station and the eleventh station are respectively connected with a second finished product water tank through pumps, and the tenth station, the eleventh station and the twelfth station are respectively connected with a wastewater discharge pipeline through pipelines.
The device mainly comprises 12 cleaning and disinfecting stations. The cleaning and disinfecting process flow is that hot sodium hydroxide solution high-pressure back washing 2 stations → water circulation washing 1 station → draining 1 station → peroxyacetic acid disinfectant high-pressure back washing 4 stations → draining 1 station → finished water washing 2 stations → draining 1 station.
The innovation of the invention is as follows:
(1) the combination of hot sodium hydroxide and peracetic acid: the hot sodium hydroxide solution or the peroxyacetic acid solution can not be used alone to stably and effectively ensure the thorough cleaning and disinfection of the turnover barrel, and the heated sodium hydroxide solution and the normal-temperature peroxyacetic acid solution are used in combination, so that the microorganisms can be thoroughly and effectively removed, and the quality safety of the barreled drinking water can be ensured.
(2) Cleaning and disinfecting temperature: the higher the temperature is usually, the better the cleaning and disinfection effect is, nevertheless from the aspect of influence and economic cost to the cleaning facility life, set for reasonable cleaning and disinfection temperature, can play the cleaning and disinfection effect, can not produce the damage to the turnover bucket again, can also practice thrift economic spending simultaneously.
(3) Concentration of the cleaning solution: the reasonable cleaning and disinfection concentration is set, and the cleaning and disinfection effect can be effectively ensured. The reasonable concentration range is selected from the aspects of ensuring the cleaning and disinfection effect and protecting the health and safety of production operators, so that the actual cleaning and disinfection effect can be achieved, and the health and safety damage to the operators can be reduced.
(4) Cleaning and disinfecting time: the longer the cleaning and disinfection time is, the better the cleaning and disinfection effect is, but the reasonable cleaning and disinfection time is set in consideration of the actual cleaning and disinfection effect and the production efficiency, so that the cleaning and disinfection effect can be ensured, and the production work efficiency can be improved.
(5) Cleaning and disinfecting pressure: under the action of certain cleaning pressure, the cleaning and disinfection degree is better. The cleaning and disinfecting functions can be further fully ensured to be exerted by selecting a certain cleaning and disinfecting pressure.
The invention has the beneficial effects that:
(1) the invention adopts the combination of the heated sodium hydroxide solution and the normal-temperature peracetic acid solution to clean and disinfect the turnover barrel, thoroughly and effectively eliminates microorganisms, and ensures the quality safety of barreled water;
(2) the cleaning and disinfecting process of the invention is integrated with the automatic filling equipment, the operation is simple and convenient, the production cost is low, and the disinfection and sterilization effect is good;
(3) the invention has important practical significance in promoting the quality improvement of barreled drinking water products, protecting the health of consumers and the like.
Drawings
Fig. 1 is a diagram of a cleaning and disinfecting device for a turnover barrel for producing barreled drinking water.
In the figure: 1. a turnover barrel; 2. a conveyor chain; 3. a nozzle; 4. a card slot; 5. a high pressure water pump; 6. a hot sodium hydroxide solution tank; 7. a heating device; 8. controlling a temperature point; 9. a first finished product tank; 10. a peracetic acid disinfectant tank; 11. a second finished product water tank; 12. a waste water discharge pipe; and 13 is a turnover barrel station.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples.
Example (b):
as shown in fig. 1, the cleaning and disinfecting device for the turnover barrel for producing the barreled drinking water comprises 12 turnover barrel stations 13, wherein a first station and a second station are respectively communicated with a hot sodium hydroxide solution tank 6, a third station is connected with a first finished product water tank 9 through a pump, and the third station and a fourth station are connected with the first finished product water tank 9 through a pipeline (circular washing); the fifth station, the sixth station, the seventh station and the eighth station are respectively connected with a peracetic acid disinfectant tank 10 through pumps, the fifth station to the ninth station are connected with the peracetic acid disinfectant tank 10 through pipelines (circular flushing), the tenth station and the eleventh station are respectively connected with a second finished product water tank 11 through pumps, and the tenth station, the eleventh station and the twelfth station are respectively connected with a wastewater discharge pipeline 12 through pipelines.
Through a large number of experimental verifications and practical application of production enterprises, the concentration of the hot sodium hydroxide solution for cleaning and disinfection is set to be 0.2-0.5%, the temperature is 50-60 ℃, the backwashing pressure is greater than 0.25 MPa, and the flushing time is 14-17s for each station; the concentration of the peroxyacetic acid disinfectant is 600 mg/L-800 mg/L, the flushing pressure is more than 0.25 MPa, and the flushing time is 14-17s, so that an ideal cleaning and disinfecting effect can be achieved.
Specific implementations are provided below:
a cleaning and disinfecting process of a turnover barrel for producing barreled drinking water comprises the following process flows of high-pressure back washing twice by hot sodium hydroxide solution → water circulation washing once → draining → high-pressure back washing four times by peroxyacetic acid disinfectant liquid → draining → finished water washing twice → draining; the method specifically comprises the following steps:
(1) high-pressure backwashing of a hot sodium hydroxide solution:
1 sodium hydroxide solution storage tanks or tanks are integrated with the automatic cleaning and disinfecting device, and high-pressure back washing is carried out twice;
the sodium hydroxide storage solution tank or tank is arranged below the automatic cleaning and disinfecting device and is provided with an automatic heating and pressurizing device; the mass concentration of the hot sodium hydroxide solution is 0.35%, the temperature is 55 ℃, the pressure is 0.28MPa, and the flushing time is 15s per station.
(2) Water circulation flushing:
the water is a pre-filled finished product water which can be recycled, and 1 finished product water tank or tank is integrated with automatic filling equipment and is provided with an automatic heating and pressurizing device; washing once by water circulation; the water washing pressure is 0.28MPa, and the washing time is 15 s; the purpose of this step is to flush the sodium hydroxide residual liquor.
(3) Draining:
the chain transmission turnover barrel integrated with the automatic filling equipment is inverted for water control for 15s, and the purpose is to drain residual water in the turnover barrel.
(4) High-pressure backwashing of a peroxyacetic acid disinfectant:
2 peroxyacetic acid disinfectant storage tanks or tanks are integrated with automatic filling equipment, and high-pressure backwashing is carried out for four times;
the peroxyacetic acid disinfectant storage tank or tank is provided with an automatic heating and pressurizing device. The concentration of the peroxyacetic acid disinfectant is 700mg/L, the pressure is 0.28MPa, and the flushing time is 15s for each station.
(5) Draining:
and a chain transmission turnover barrel integrated with the automatic filling equipment is inverted for water control for 15s, so that residual peracetic acid disinfectant in the turnover barrel is drained.
(6) Finished product water washing:
the water is pre-filled finished product water which can not be recycled, 1 storage water tank or tank is integrated with automatic filling equipment, and the automatic filling equipment is provided with an automatic heating and pressurizing device. Back washing twice with finished water under high pressure: the water washing pressure is 0.28MPa, and the washing time is 15 s.
(7) Draining:
the chain transmission turnover barrel integrated with the automatic filling equipment is inverted for water control for 15s, and the purpose is to drain residual water in the turnover barrel.
The cleaning and disinfecting effect verification of the embodiment is that the bottled drinking water coliform bacteria and pseudomonas aeruginosa filled after cleaning and disinfection are checked and verified according to the regulation of GB19298-2014 national standard package drinking water for food safety, and as a result, microorganisms are not detected. The cleaning and disinfecting effects are verified in table 2.
TABLE 2 verification of cleaning and sterilizing effects
Claims (8)
1. A cleaning and disinfection process of a turnover barrel for producing barreled drinking water is characterized in that: the cleaning and disinfecting process flow is that hot sodium hydroxide solution high-pressure back washing twice → water circulation washing once → draining → peracetic acid disinfectant high-pressure back washing four times → draining → finished water washing twice → draining.
2. The process of cleaning and disinfecting a turnover drum for producing barreled drinking water according to claim 1, wherein the process comprises the following steps: the method comprises the following steps:
(1) high-pressure backwashing of a hot sodium hydroxide solution:
1 sodium hydroxide solution storage tank or tank is integrated with the automatic cleaning and disinfecting device, and the turnover barrel is back-flushed for two times under high pressure;
the sodium hydroxide storage solution tank or tank is arranged below the automatic cleaning and disinfecting device and is provided with an automatic heating and pressurizing device;
(2) water circulation flushing:
the water is a pre-filled finished product water which can be recycled, and 1 finished product water tank or tank is integrated with automatic filling equipment and is provided with an automatic heating and pressurizing device; washing once by water circulation;
(3) draining:
the chain transmission turnover barrel integrated with the automatic filling equipment is inverted for water control for 14-17s, so that residual water in the turnover barrel is drained;
(4) high-pressure backwashing of a peroxyacetic acid disinfectant:
2 peroxyacetic acid disinfectant storage tanks or tanks are integrated with automatic filling equipment, and high-pressure backwashing is carried out for four times;
the peroxyacetic acid disinfectant storage tank or tank is provided with an automatic heating and pressurizing device;
(5) draining:
the chain transmission turnover barrel integrated with the automatic filling equipment is inverted for water control for 14-17s, so that residual peroxyacetic acid disinfectant in the turnover barrel is drained;
(6) finished product water washing:
the water is a pre-filled finished product water which cannot be recycled, 1 storage water tank or tank is integrated with automatic filling equipment, and the automatic filling equipment is provided with an automatic heating and pressurizing device; back washing twice with finished water under high pressure;
(7) draining:
and a chain transmission turnover bucket integrated with the automatic filling equipment is inverted for water control for 14-17s, so that residual water in the turnover bucket is drained.
3. The cleaning and disinfecting process of the turnover barrel for producing the barreled drinking water as claimed in claim 2, which is characterized in that: after the internal and external brushes are used for pre-cleaning the turnover barrel, the turnover barrel is conveyed and lifted through a chain conveying device of cleaning and sterilizing equipment integrated with automatic filling equipment, a barrel opening of the turnover barrel is downward and vertically arranged in a clamping seat, the barrel opening is kept to be vertically aligned with a nozzle of hot sodium hydroxide cleaning liquid, water and peroxyacetic acid disinfectant, a control switch is started, and internal cleaning and sterilizing are carried out on the turnover barrel.
4. The cleaning and disinfecting process of the turnover barrel for producing the barreled drinking water as claimed in claim 2, which is characterized in that: in the step (1), the mass concentration of the hot sodium hydroxide solution is 0.2-0.5%, the temperature is 50-60 ℃, the pressure is more than 0.25 MPa, and the flushing time is 14-17s per station.
5. The cleaning and disinfecting process of the turnover barrel for producing the barreled drinking water as claimed in claim 2, which is characterized in that: in the step (2), the water washing pressure is greater than 0.25 MPa, and the washing time is 14-17 s; the purpose of this step is to flush the sodium hydroxide residual liquor.
6. The cleaning and disinfecting process of the turnover barrel for producing the barreled drinking water as claimed in claim 2, which is characterized in that: in the step (3), the concentration of the peroxyacetic acid disinfectant is 600 mg/L-800 mg/L, the pressure is greater than 0.25 MPa, and the flushing time is 14-17s for each station.
7. The cleaning and disinfecting process of the turnover barrel for producing the barreled drinking water as claimed in claim 2, which is characterized in that: in the step (6), the water washing pressure is greater than 0.25 MPa, and the washing time is 14-17 s.
8. A cleaning and disinfecting device for a turnover barrel for barreled drinking water production is used for the cleaning and disinfecting process for the turnover barrel for barreled drinking water production, which is characterized in that: the device comprises 12 turnover barrel stations, a first station and a second station are respectively communicated with a hot sodium hydroxide solution tank, a third station is connected with a first finished product water tank through a pump, and the third station and a fourth station are connected with the first finished product water tank through pipelines; the fifth station, the sixth station, the seventh station and the eighth station are respectively connected with a peracetic acid disinfectant tank through pumps, the fifth station, the ninth station, the tenth station and the eleventh station are respectively connected with a second finished product water tank through pumps, and the tenth station, the eleventh station and the twelfth station are respectively connected with a wastewater discharge pipeline through pipelines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481775.0A CN111701969A (en) | 2020-06-01 | 2020-06-01 | Turnover barrel cleaning and disinfecting process and device for production of barreled drinking water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010481775.0A CN111701969A (en) | 2020-06-01 | 2020-06-01 | Turnover barrel cleaning and disinfecting process and device for production of barreled drinking water |
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| CN111701969A true CN111701969A (en) | 2020-09-25 |
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Application publication date: 20200925 |