CN101585567A - Method for filtering field water for drinking - Google Patents
Method for filtering field water for drinking Download PDFInfo
- Publication number
- CN101585567A CN101585567A CNA2008101090917A CN200810109091A CN101585567A CN 101585567 A CN101585567 A CN 101585567A CN A2008101090917 A CNA2008101090917 A CN A2008101090917A CN 200810109091 A CN200810109091 A CN 200810109091A CN 101585567 A CN101585567 A CN 101585567A
- Authority
- CN
- China
- Prior art keywords
- water
- filter core
- drinking
- filtering field
- filtration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to the industry of water treatment, in particular to the depth-type filtration and purification of field drinking water. The invention discloses a method for filtering field water for drinking. Equipment for implementing the method comprises a filter element unit for filtration, a water pump device for pumping raw water, a germicidal lamp for sterilizing bacteria and viruses and a noncommercial power supply device, wherein the output circuit of the power supply device is connected with the germicidal lamp and the control circuit of the water pump device; the water pump device is connected to a raw water filtration and sterilization pipe formed by the filter element unit and an ultraviolet ray sterilizer. The equipment has the advantages of simple structure, convenient use, diversified water resources and capability for pretreatment, strong field environment suitability, applicability to emergency environments where accidents of natural disasters such as earthquake, flood, drought and the like occur, and contribution to the popularization and promotion of water purifiers.
Description
Technical field
The present invention is relevant with water treatment field, is specifically related to depth type filtration, the purification aspect of open-air tap water.
Background technology
At present, water purifier uses at home and has obtained popularizing to a certain degree.Under the lowered in field environment, when former water direct filtration such as lake water, rainwater, river, underground water are direct drinking water, adopt water purifier that impurity in the water etc. is carried out depth type filtration, protected user's health preferably.Yet along with the progressively popularization of portable water purification kit, they have also progressively come out in the defective and the deficiency of application facet.Because the diversity and the unpredictability of open-air physical environment, and suspended contaminant such as the bacterium that exists in the water, algae, insects, dust and particle, colloid, its water-quality guideline often is lower than tap water, make the junior low hydraulic pressure water purifier of filtering accuracy can not handle bacterium, virus, do not reach and drink raw requirement; And the higher filter core of filtering accuracy is very easy to stop up even lost efficacy.And, along with the impurity that filter core is retained down is more and more, tend to make this filter core impurity to become new " pollution " source, need more renew cartridge, cause filter element life very short.In addition, use the required electric main power supply of water purifier because field environment lacks, and for the micro-filtration level water purifier that does not need power supply, former current are difficult to pass through filter core again.And the aperture of no press filtration filter element filtering layer is bigger, and the bacterium that may exist in the water, virus can directly be passed through filter core, often can not directly drink water.Only adopting just can dam under nanofiltration membrane or the reverse osmosis membrane filter core situation bacterium and virus.But because the water purifier of employing nanofiltration membrane or the reverse osmosis membrane filter core product water time is long, the water yield is little, be difficult to satisfy a large amount of fast requirements of supplying water, and adopt nanofiltration membrane or reverse osmosis membrane filter core, and adopt in the water purifier lowered in field environment of ultraviolet germicidal device, can not move owing to lack mains supply.Therefore, in the severe environment, existing no mains supply water purifier can not guarantee the safety of made direct-drinking water in the open air, so that can not use under the environment that natural disasteies such as earthquake, flood, arid take place.Above-mentioned defective and not enough causing influence popularizing of water purifier.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of simple and practical method for filtering field water for drinking, to overcome above-mentioned defective and deficiency.
The present invention includes the pumping plant that is used for filtering filter core unit, is used to extract former water, be used for ultraviolet germicidal, also comprise non-mains supply device bacterium, viral disinfection; This supply unit output circuit connects ultraviolet germicidal, pumping plant pilot circuit; Described pumping plant is connected in raw water filtration that filter core unit and ultraviolet radiation for sterilizing and disinfecting device constitute, the decontamination duct network.Elementary filter core in the filter core unit can filter suspended contaminant such as larger-size colloid, particle and algae, insects, dust in the former water, has alleviated the filtration burden of follow-up filter element filtering, prevents to stop up follow-up filter core, prolongs life.KDF in the preposition filter core in the filter core unit, carbon leaching material can replace, adsorb the processing of damming to being dissolved in unnecessary composition of disinfecting drug in the former water and heavy metal, the organic impurities in the former water.The filter core unit both can be single fabric filter element; Also can be a plurality of split cartridge combination so that former water is carried out multistage, multi-filtering processing; It can also be many filtrates composite filter element.Pumping plant is connected in the filtration, purification pipeline, will carry out step by step in water suction filter core unit, filtration treatment successively.In view of bacterium and virus small-sized, can be by the situation of micro-filtration level filter core and general ultrafiltration level filter core, in the unitary outlet pipeline of filter core, be connected with the ultraviolet radiation for sterilizing and disinfecting device of forming by ultraviolet germicidal and quartz socket tube, and provide driving power to ultraviolet germicidal and water pump control circuit by non-mains supply device; Under the driving of non-mains supply device output power, water pump extracts that former water is unitary successively by filter core, filtration treatment step by step, through ultraviolet radiation for sterilizing and disinfecting device sterilization and disinfection, produces direct-drinking water capable of direct drinking again.
Described non-mains supply device is a DC power source unit; Described pumping plant is a DC water pump.
Described DC power source unit comprises that direct supply and direct current deliver stream transformer.Direct supply output is delivered stream transformer through direct current and is converted the electronic rectifier that corresponding alternating-current drives the control ultraviolet germicidal to.Comprise battery feed in the direct supply.
Described DC power source unit comprises that direct-current generator and direct current deliver stream transformer.
As a kind of pattern of direct-current generator, adopt the shaking direct-current generator.
Direct-current generator output circuit involved in the present invention can also link to each other with store battery when connecting water pump, charges a battery.
Described non-mains supply device is an alternator unit; Described pumping plant is to exchange water pump.
Described alternator unit is manual alternator.
Generator output end all can be furnished with voltage-stabilizing output circuit to drive the electronic rectifier and the pumping plant of control ultraviolet germicidal respectively in the pattern of above-mentioned employing generator.
Described filter core unit comprises elementary filter core, preposition filter core and ultra-filtration membrane filter core.Can dam bacterium with most of viral as the higher ultra-filtration membrane filter core of filtration grade, have certain water flow simultaneously again.The supporting use of ultra-filtration membrane filter core and ultraviolet germicidal, and, can make a large amount of direct-drinking waters at short notice with the pattern that medicine is handled former water sterilization and disinfection.Adopt pre-sterilizing sterilization pattern, make the direct-drinking water of producing under the small-sized water purifier lowered in field environment have very high security and practicality.
On the water purifier and the matching used pattern of ultraviolet germicidal basis that adopt the ultra-filtration membrane filter core, also can as required ultra-filtration membrane filter element filtering precision be reduced to micro-filtration level filter core, further strengthen water production rate.The filtered model of this moment is the robust fibre filter core, have the conventional filtration pattern that the processing filter core, fine-fibered filter core of KDF or gac constitute.
Described filter core unit comprises elementary filter core, preposition filter core and nanofiltration membrane filter core.
Described filter core unit comprises elementary filter core, preposition filter core and reverse osmosis membrane filter core.
As to pumping plant function expansion among the present invention, can utilize it in nanofiltration membrane filter core, reverse osmosis membrane filter core suction culvert, to form high hydraulic pressure, make former water penetrate filtering membrane, and bacterium and virus dammed at the filtering layer influent side, thereby further improve the security and the practicality of system water under the small-sized water purifier lowered in field environment.In the high-grade filter core unit combination pattern that adopts ultraviolet germicidal and nanofiltration membrane filter core, ultraviolet germicidal both can be arranged in its water purification outlet pipeline, also can be arranged on it and arrange in the dense pipeline, to obtain the two-way direct-drinking water.
In ultraviolet germicidal and the unitary integrated mode of reverse osmosis membrane filter core, ultraviolet germicidal is arranged on it and arranges in the dense pipeline, obtains the two-way direct-drinking water equally.
The present invention also comprises the water storage bag of band sealing water outlet, and this water storage bag water outlet is connected with movable sealing with the unitary elementary filter core suction culvert of filter core.Adopt the convenient system of water storage bag water intaking water process, this water storage bag both can be used as transferable tank use, direct-drinking water is produced in the strange land, can also be used with former water sterilization medicine, river, the rainwater of collecting staticly settled or the processing of medicine sterilization and disinfection.Former water after the processing is drawn in the water purifier by the unitary suction culvert of filter core by pumping plant, carries out follow-up filtration treatment.Adopt pre-sterilizing sterilization pattern, make the direct-drinking water of producing under the small-sized water purifier lowered in field environment have very high security and practicality.
Directly filter when producing direct-drinking water in the place of water intaking at needs, can be with unitary suction culvert of filter core and the disengagement of water storage bag, directly insert in the water and absorb water.
Pumping plant involved in the present invention both can be a DC water pump, also can be to exchange water pump.
The present invention compares with the filter method of existing water purifier and has the following advantages: simple in structure, easy to use; The water intaking variation also can be carried out pre-treatment, and field environment adaptability is strong, is particularly useful for taking place the emergency environment of natural disasteies such as earthquake, flood, arid; Help the penetration and promotion of water purifier.
Description of drawings
Accompanying drawing is a principle schematic of the present invention.
Embodiment
Accompanying drawing shows optimum embodiment of the present invention.Water storage bag 1 melts and sprays tubulose filter core 21 with the elementary robust fibre of filter core unit 2 and is connected with the flexible pipe movable sealing; The preposition filter core in the unitary second stage of filter core is that carbon leaching material and fine-fibered melt and spray the composite filter element 22 that the tubulose filter core is formed.The KDF filtrate can place in the tubular fiber melt-blown filter.Third stage fine filter core 23 adopts the ultra-filtration membrane filter core.Ultraviolet radiation for sterilizing and disinfecting device 6 by ultraviolet germicidal 61 and quartz socket tube 62 are formed is connected in the direct-drinking water outlet pipeline.Enter ultraviolet sterilizer 6 through the water after fine filter core 23 filtrations, ultraviolet germicidal 61 is launched ultraviolet light under the exciting of electronic rectifier, passes the water irradiation-sterilize sterilization that 62 pairs of silica tubes are flowed through.Two-way output in DC power source unit provides driving power to the electronic rectifier and the DC water pump pilot circuit that start ultraviolet germicidal 61 respectively; Comprise that as the DC power source unit of non-mains supply device 7 direct supply and direct current deliver stream transformer two portions, wherein, direct supply adopts battery feed.Under the driving of DC power source unit output power, DC water pump extract former water by filter core unit 2 successively, filtration treatment step by step, through ultraviolet germicidal lamp 7 sterilization and disinfection, produce direct-drinking water capable of direct drinking again.Pumping plant 5 is serially connected between the pipeline of preposition filter core 22 and fine filter core 23, and its pilot circuit links to each other with the DC power source unit output terminal.During operation, at first utilize water storage bag 1 to obtain a certain amount of former water after, disinfecting drug joined drops in the former water, former water such as the river collected, rainwater, underground water are carried out the medicine sterilization and disinfection handle.Water storage bag 1 is tightly connected with the water supply hose that first step robust fibre melts and sprays tubulose filter core 21.Former water is drawn into filter cores at different levels by DC water pump and carries out filtration treatment after passing through leaving standstill of certain hour or Chemical Pretreatment.KDF, carbon leaching material can replace, adsorb the processing of damming to being dissolved in unnecessary composition of disinfecting drug in the former water and heavy metal, the organic impurities in the former water.It is finly filtration that fine-fibered in the preposition filter core 22 melts and sprays the tubulose filter core, prevents to stop up the subsequent ultrafiltration membrane cartridge.The less ultra-filtration membrane cartridge systems in employing aperture also can be under no disinfecting drug situation, and direct filtration is removed protein, microorganism and most of germ.In addition, between fine filter core and ultraviolet radiation for sterilizing and disinfecting device, can connect mouthfeel that the subsidiary function filter core is used to improve direct-drinking water, increase mineral substance.Directly filter when producing direct-drinking water in the place of water intaking at needs, can be with elementary filter core suction culvert and the disengagement of water storage bag, directly insert in the water and absorb water.In addition, also adopt water storage bag and micro-filtration level filter core unit, ultraviolet germicidal combination, and with chemical sterilization disinfectant pattern, fast a large amount of potable water.
As improvement of the present invention, the unitary fine filter core 23 of filter core also can adopt the nanofiltration membrane filter core, with further raising clearance, thereby further improves the safe class of direct-drinking water.In ultraviolet germicidal 61 and nanofiltration membrane filter core unit combination pattern, ultraviolet germicidal 61 both can be arranged in its water purification outlet pipeline, also can be arranged on it and arrange in the dense pipeline.Ultraviolet germicidal 61 is arranged in the dense pipeline of row of nanofiltration membrane filter core, the most of former water conservancy of passing through preposition filtration, shunted out by the dense pipeline of row again can be used, and obtains the second road micro-filtration level direct-drinking water.
As improvement of the present invention, the unitary fine filter core 23 of filter core can also adopt the reverse osmosis membrane filter core, further improving clearance, thereby more improves the safe class of direct-drinking water.In ultraviolet germicidal 61 and reverse osmosis membrane filter core unit combination pattern, ultraviolet germicidal 61 is arranged in the dense pipeline of row of reverse osmosis membrane filter core, to utilize the overwhelming majority through the former water of preposition filtering shuntings, obtains the second road micro-filtration level direct-drinking water.
As second kind of embodiment of the present invention, non-mains supply device 7 adopts direct-current generators and direct current to deliver the stream transformer coupling and makes up, and provides the place of direct-drinking water on a large scale to adapt to needs under the urgent particular surroundings.
As a kind of pattern of direct-current generator, adopt the shaking direct-current generator.
Direct-current generator output circuit involved in the present invention can also link to each other with store battery when connecting water pump, charges a battery.
As the third embodiment of the present invention, non-mains supply device 7 adopts alternator, to meet the needs of the place that direct-drinking water is provided on a large scale.
As the 4th kind of embodiment of the present invention, for small-sized water purifier, corresponding employing is not with the shaking alternator of reverser provide power supply supporting with it.
The invention is not restricted to above-mentioned embodiment.No matter how method for filtering field water for drinking changes, all employing filter cores unit, pumping plant, ultraviolet germicidal, and non-mains supply device; And under the effect of non-mains supply device output power; pumping plant extracts former water and filters step by step; and all belong to the development of technical solution of the present invention through ultraviolet germicidal sterilization, disinfectant method for filtering field water for drinking, all drop within the protection domain of the present invention.
Claims (10)
1, a kind of method for filtering field water for drinking, comprise the pumping plant (5) that is used for filtering filter core unit (2), is used to extract former water, be used for ultraviolet germicidal (61), it is characterized in that also comprising non-mains supply device (7) bacterium, viral disinfection; This supply unit (7) output circuit connects ultraviolet germicidal (61), pumping plant (5) pilot circuit; Described pumping plant (5) is connected in raw water filtration that filter core unit (2) and ultraviolet radiation for sterilizing and disinfecting device (6) constitute, the decontamination duct network.
2, method for filtering field water for drinking as claimed in claim 1 is characterized in that described non-mains supply device (7) is a DC power source unit; Described pumping plant (5) is a DC water pump.
3, method for filtering field water for drinking as claimed in claim 2 is characterized in that described DC power source unit comprises that direct supply and direct current deliver stream transformer.
4, method for filtering field water for drinking as claimed in claim 3 is characterized in that described DC power source unit comprises that direct-current generator and direct current deliver stream transformer.
5, method for filtering field water for drinking as claimed in claim 4 is characterized in that described non-mains supply device (7) is an alternator unit; Described pumping plant is to exchange water pump.
6, method for filtering field water for drinking as claimed in claim 5 is characterized in that described alternator is manual alternator.
7, method for filtering field water for drinking as claimed in claim 1 is characterized in that described filter core unit (2) comprises elementary filter core (21), preposition filter core (22) and ultra-filtration membrane filter core.
8, method for filtering field water for drinking as claimed in claim 1 is characterized in that described filter core unit (2) comprises elementary filter core (21), preposition filter core (22) and nanofiltration membrane filter core.
9, method for filtering field water for drinking as claimed in claim 1 is characterized in that described filter core unit (2) comprises elementary filter core (21), preposition filter core (22) and reverse osmosis membrane filter core.
10,, it is characterized in that also comprising the water storage bag (1) of band sealing water outlet as claim 1,2,3,4,5,6,7,8 or 9 described method for filtering field water for drinking; This water storage bag (1) water outlet is connected with water inlet manifold road, filter core unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101090917A CN101585567A (en) | 2008-05-24 | 2008-05-24 | Method for filtering field water for drinking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101090917A CN101585567A (en) | 2008-05-24 | 2008-05-24 | Method for filtering field water for drinking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101585567A true CN101585567A (en) | 2009-11-25 |
Family
ID=41370025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101090917A Pending CN101585567A (en) | 2008-05-24 | 2008-05-24 | Method for filtering field water for drinking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101585567A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948190A (en) * | 2010-09-06 | 2011-01-19 | 杭州浙华水务有限公司 | Field emergency water treatment equipment |
| CN103608076A (en) * | 2011-05-30 | 2014-02-26 | 基础株式会社 | Filtration device |
| CN103964597A (en) * | 2014-05-29 | 2014-08-06 | 江苏羊城净水设备有限公司 | Efficient energy-saving water purification process |
| CN104058534A (en) * | 2014-06-25 | 2014-09-24 | 耿安朝 | Ultrafiltration and reverse osmosis combined water purifying equipment |
| CN104326589A (en) * | 2014-11-25 | 2015-02-04 | 国家海洋局天津海水淡化与综合利用研究所 | Portable water purifier |
| CN105439350A (en) * | 2015-12-08 | 2016-03-30 | 黄荣贵 | Breathing gas and drinking water shared purifying device |
| CN105439340A (en) * | 2015-12-08 | 2016-03-30 | 黄荣贵 | External respiratory air and drinking water alternate purification method |
| CN105540961A (en) * | 2015-12-08 | 2016-05-04 | 黄荣贵 | Method for co-purifying external breathing air and drinking water |
| ES2582014A1 (en) * | 2016-06-08 | 2016-09-08 | Hispano Vema, S.L. | Equipment for water treatment (Machine-translation by Google Translate, not legally binding) |
| CN107381900A (en) * | 2017-08-16 | 2017-11-24 | 无锡市日升机械厂 | The mountain-climbing knapsack of built-in water filtering device |
| WO2018019004A1 (en) * | 2016-07-26 | 2018-02-01 | 吴达镕 | Primary filtration and storage system |
| CN109437460A (en) * | 2018-12-12 | 2019-03-08 | 王星伟 | A kind of new-type field production and living water filtering device |
| CN109553230A (en) * | 2018-02-08 | 2019-04-02 | 佛山市雅洁源科技股份有限公司 | The water water supply device processed that field is quickly laid |
-
2008
- 2008-05-24 CN CNA2008101090917A patent/CN101585567A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948190A (en) * | 2010-09-06 | 2011-01-19 | 杭州浙华水务有限公司 | Field emergency water treatment equipment |
| CN103608076A (en) * | 2011-05-30 | 2014-02-26 | 基础株式会社 | Filtration device |
| CN103608076B (en) * | 2011-05-30 | 2015-07-15 | 基础株式会社 | Filtration device |
| CN103964597A (en) * | 2014-05-29 | 2014-08-06 | 江苏羊城净水设备有限公司 | Efficient energy-saving water purification process |
| CN104058534B (en) * | 2014-06-25 | 2016-04-27 | 耿安朝 | A kind of ultrafiltration and reverse osmosis composition type clear water equipment |
| CN104058534A (en) * | 2014-06-25 | 2014-09-24 | 耿安朝 | Ultrafiltration and reverse osmosis combined water purifying equipment |
| CN104326589A (en) * | 2014-11-25 | 2015-02-04 | 国家海洋局天津海水淡化与综合利用研究所 | Portable water purifier |
| CN105439340A (en) * | 2015-12-08 | 2016-03-30 | 黄荣贵 | External respiratory air and drinking water alternate purification method |
| CN105439350A (en) * | 2015-12-08 | 2016-03-30 | 黄荣贵 | Breathing gas and drinking water shared purifying device |
| CN105540961A (en) * | 2015-12-08 | 2016-05-04 | 黄荣贵 | Method for co-purifying external breathing air and drinking water |
| CN105540961B (en) * | 2015-12-08 | 2018-08-21 | 华赣景观建设集团股份有限公司 | Breathing gas and drinking water share purification method outside a kind of |
| CN105439350B (en) * | 2015-12-08 | 2018-10-30 | 江苏恬然环保科技发展有限公司 | A kind of breathing gas and drinking water share cleaning equipment |
| CN108928989A (en) * | 2015-12-08 | 2018-12-04 | 长泰品原电子科技有限公司 | A kind of purification method of cleaning equipment |
| CN105439340B (en) * | 2015-12-08 | 2018-12-14 | 绍兴市亿跃智能科技有限公司 | Breathing gas and drinking water replace purification method outside a kind of |
| ES2582014A1 (en) * | 2016-06-08 | 2016-09-08 | Hispano Vema, S.L. | Equipment for water treatment (Machine-translation by Google Translate, not legally binding) |
| WO2018019004A1 (en) * | 2016-07-26 | 2018-02-01 | 吴达镕 | Primary filtration and storage system |
| CN107381900A (en) * | 2017-08-16 | 2017-11-24 | 无锡市日升机械厂 | The mountain-climbing knapsack of built-in water filtering device |
| CN109553230A (en) * | 2018-02-08 | 2019-04-02 | 佛山市雅洁源科技股份有限公司 | The water water supply device processed that field is quickly laid |
| CN109437460A (en) * | 2018-12-12 | 2019-03-08 | 王星伟 | A kind of new-type field production and living water filtering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101585567A (en) | Method for filtering field water for drinking | |
| CN202173884U (en) | Ultrafiltration reverse osmosis double-effect water quality treater | |
| CN102115288A (en) | Method and equipment for recycling and treating vehicle cleaning and laundry wastewater | |
| RU76641U1 (en) | INTEGRATED MULTI-CIRCUIT MULTI-STAGE WATER TREATMENT AND WATER TREATMENT SYSTEM ON THE MOBILE PLATFORM | |
| CN204529547U (en) | Ultrapure water production unit | |
| CN201295568Y (en) | Field water filter | |
| CN202016921U (en) | Vehicle-mounted water purifying equipment | |
| CN201284277Y (en) | Small-sized water purifying appliance | |
| CN203999258U (en) | The integrated Sewage treatment systems in a kind of cement mill | |
| CN200958059Y (en) | Reverse osmose water purifier | |
| CN205501006U (en) | Filter core and have water purification unit of its filter core | |
| CN202519122U (en) | Emergency-integrated water purification station | |
| CN205500954U (en) | Domestic reverse osmosis water purifier | |
| CN101948190A (en) | Field emergency water treatment equipment | |
| CN201999822U (en) | Car and clothes washing waste water recycling processing device | |
| CN104743703A (en) | Unpowered emergency water purifier applicable to earthquake stricken areas | |
| CN105731701A (en) | Unattended low-cost environment-friendly drinking water purifying treatment system | |
| CN211770679U (en) | Water treatment system for realizing continuous cleaning by utilizing pressure ozone | |
| CN201864626U (en) | High purity water treatment device for laboratory | |
| CN205367983U (en) | Micro molecule group's hydrogenesis equipment | |
| CN208279391U (en) | Nanofiltration water system | |
| CN201296689Y (en) | Field water processor | |
| CN210193569U (en) | Modular combined water purifying device | |
| CN204508987U (en) | Two matter water purifier | |
| CN101585566A (en) | Method for purifying field water quality for drinking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091125 |