CN104556481A - Treatment system and method for preparing high-hardness underground water into domestic drinking water - Google Patents
Treatment system and method for preparing high-hardness underground water into domestic drinking water Download PDFInfo
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- CN104556481A CN104556481A CN201410817310.2A CN201410817310A CN104556481A CN 104556481 A CN104556481 A CN 104556481A CN 201410817310 A CN201410817310 A CN 201410817310A CN 104556481 A CN104556481 A CN 104556481A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F2303/00—Specific treatment goals
- C02F2303/18—Removal of treatment agents after treatment
- C02F2303/185—The treatment agent being halogen or a halogenated compound
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a treatment system and method for preparing high-hardness underground water into domestic drinking water and belongs to the field of water treatment. The treatment system comprises a coagulation and sedimentation unit, an intermediate water pool, a membrane filtration and desalination unit and a mixed disinfection unit which are connected in sequence, wherein the membrane filtration and desalination unit is formed by connecting a ultra-filtration unit and a nano-filtration unit; a blended water supply pipe connected to the mixed disinfection unit is arranged at the water outlet end of the coagulation and sedimentation unit; the coagulation and sedimentation unit is provided with a high-hardness underground water inlet; the mixed disinfection unit is provided with a treated water outlet and a chlorine adding device. According to the treatment system, coagulation and sedimentation and membrane separation technologies are organically combined and exert respective advantages to remove the hardness of the underground water and produce the high-quality qualified domestic drinking water. On the premise of reducing the investment as much as possible, the comprehensive benefit of a municipal water supply plant is improved, and a technical support is provided for newly-built water plants and old water plants in high-hardness underground water regions in China; therefore, the economic benefits and the social benefits are good, and the market prospect is wide.
Description
Technical field
The present invention relates to water treatment field, particularly relate to treatment system and method that a kind of high rigidity underground water prepares Drinking Water.
Background technology
China is the country that extremely lacks of water resources per capita, and along with the growth of population and the increase of water consumption, mining of groundwater scale is also in continuous expansion.Because underground water has the features such as high rigidity usually, and current water technology is varied, how can process high rigidity underground water at lower cost, can demineralized water, the beneficial element such as potassium, sodium of needed by human body can be retained again, making the high rigidity underground water after process meet drinking water standard requirement, is the problem needing to solve.
Summary of the invention
Based on the problem existing for above-mentioned prior art, the invention provides treatment system and method that a kind of high rigidity underground water prepares Drinking Water, with lower cost, ground water hardness can be removed, and retain the beneficial element to needed by human body in water.
For solving the problems of the technologies described above, the invention provides the treatment system that a kind of high rigidity underground water prepares Drinking Water, comprising:
The coagulating sedimentation unit connected successively, intermediate pool, membrane filtration desalination unit and mixing disinfection unit;
Described membrane filtration desalination unit is formed by connecting by ultra filtration unit and nano-filtration unit;
The water side of described coagulating sedimentation unit be provided be connected to described mixing disinfection unit blend water supply pipe;
Described coagulating sedimentation unit is provided with high rigidity groundwater intake;
Described mixing disinfection unit is provided with the rear water outlet of process and chlorine throwing device.
The present invention also provides a kind of high rigidity underground water to prepare the treatment process of Drinking Water, adopts treatment system of the present invention, comprises the following steps:
High rigidity underground water enters coagulating sedimentation unit and carries out coagulating sedimentation pre-treatment, the pretreated outlet part of coagulating sedimentation is divided into membrane filtration desalination unit and carries out filtration desalting treatment, the pretreated water outlet of another part coagulating sedimentation enters sterilization mixed cell, the water outlet of filtering after desalting treatment enters sterilization mixed cell, mix with the pretreated water outlet of the coagulating sedimentation entered after disinfecting and add chlorine, the final tap water producing water and meet Drinking Water national standard.
Beneficial effect of the present invention is: the filtration process of coagulating sedimentation and membrane separation technique are organically combined, and both performances are advantage separately, reaches the desired result removing ground water hardness, produces the Drinking Water that high-quality is qualified.This system can under the investment prerequisite reduced as far as possible, improve the comprehensive benefit of municipal water supply factory, there is provided technical support to the newly-built water factory in China's high rigidity underground water area, old fish drugs, there is good economic benefit and social benefit, wide market.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The treatment system schematic diagram that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Figure 1 shows that a kind of high rigidity underground water that the embodiment of the present invention provides prepares the treatment system of Drinking Water, comprising: the coagulating sedimentation unit connected successively, intermediate pool, membrane filtration desalination unit and mixing disinfection unit (mixing disinfection pool can be adopted); Membrane filtration desalination unit is formed by connecting by ultra filtration unit and nano-filtration unit; The water side of coagulating sedimentation unit be provided be connected to mixing disinfection unit blend water supply pipe; Coagulating sedimentation unit is provided with high rigidity groundwater intake; Mixing disinfection unit is provided with the rear water outlet of process and chlorine throwing device (can adopt chlorinating machine).By the water side that coagulating sedimentation unit is set be provided be connected to mixing disinfection unit blend water supply pipe, make through the pretreated underground moisture of coagulating sedimentation unit be two portions, a part enters desalination unit, and another part enters mixing disinfection unit as blending water.As long as both ratios make the final product water of this system meet the requirement of Drinking Water national standard.
In above-mentioned treatment system, coagulating sedimentation unit adopts coagulative precipitation tank, and coagulative precipitation tank is provided with polymerize aluminum chloride and liquid chlorine throwing device and is located at the whipping appts in this coagulative precipitation tank pond body.Stir carry out coagulating sedimentation by adding medicament selective polymerization aluminum chloride and chlorine, tentatively can remove the impurity such as suspended substance, colloid contained in underground water.
In above-mentioned treatment system, ultra filtration unit is produced pond by ultra-filtration equipment and ultrafiltration and is connected in sequence; Ultra-filtration equipment is provided with clorox throwing device and sodium hydroxide throwing device and ultrafiltration washing unit, and the topping-up pump being provided with in pond and connecting nano-filtration unit is produced in ultrafiltration.
In above-mentioned treatment system, ultra-filtration equipment adopts the ultra-filtration equipment of dead-end filtration, the ultrafiltration membrane elements of ultra-filtration equipment PVDF material.
In above-mentioned treatment system, nano-filtration unit adopts nanofiltration membrane element to be the nanofiltration device of polyamide composite film, and nanofiltration device is provided with scale inhibitor feeding device and reductive agent throwing device and nanofiltration washing unit.
In above-mentioned treatment system, nanofiltration membrane element is greater than 95% to divalent salts ratio of desalinization, runs free chlorine residual and is less than 0.1ppm.
Above-mentioned nano-filtration unit also comprises: the filtering accuracy being located at nanofiltration device feed-water end is the nanofiltration cartridge filter of 5 μm.
In above-mentioned treatment system, the water side of pretreatment unit be provided be connected to mixing disinfection unit blend water supply pipe.
The present invention also provides a kind of high rigidity underground water to prepare the treatment process of Drinking Water, adopts above-mentioned treatment system, comprises the following steps:
High rigidity underground water enters coagulating sedimentation unit and carries out coagulating sedimentation pre-treatment, the pretreated outlet part of coagulating sedimentation is divided into membrane filtration desalination unit and carries out filtration desalting treatment, the pretreated water outlet of another part coagulating sedimentation enters sterilization mixed cell, the water outlet of filtering after desalting treatment enters sterilization mixed cell, mix with the pretreated water outlet of the coagulating sedimentation entered after disinfecting and add chlorine, the final tap water producing water and meet Drinking Water national standard.
In above-mentioned treatment process, it is polymerize aluminum chloride and liquid chlorine that coagulating sedimentation pre-treatment adds medicament.
In above-mentioned treatment process, enter the underground water of membrane filtration desalination unit, first filter through ultra-filtration equipment, remove the impurity such as suspended substance, colloid in water body further, protection subsequent film equipment safety runs; Ultrafiltration product water enters nanofiltration device by topping-up pump and carries out desalination, and general Water Sproading rate is 70 ~ 75%, and divalence and high price salt ratio of desalinization are more than 90%.Because the too low human body that do not meet of desalination unit part ion content drinks requirement, therefore mix with non-desalination underground water at mixing disinfection unit, make finally to produce water ion content while being better than drinking water water-quality guideline, also ensure that human body drinks the needs of health and safety.
Advantage of the present invention is as follows: (1) ultrafiltration and nanofiltration all adopt pressure as detachment dynamic, and stable equipment operation is reliable, and level of automation is high.(2) membrane separation technique is high for high rigidity total Hardness of The Underground Water removal effect, can adjust the water yield entering desalination unit flexibly flexibly according to influent quality data, makes finally to mix water outlet and meets the requirement of Drinking Water water quality standard; (3) medicine system regulates chemical feeding quantity automatically according to monitoring instrument, saves working cost; (4) film device facility compact, saves and takes up an area, and reduces investment cost.Treatment system of the present invention and method can for the flexible adjust operation parameters of different quality, satisfactory to the total hardness removal effect of high rigidity underground water.
Below in conjunction with specific embodiment, the invention will be further described.
Treatment system of the present invention and method are to reduce hardness for ultimate aim, and usual nano-filtration unit is removed hardness value and calculated by > 95%.In conjunction with drinking water sanitary standard (GB5749-2006) requirement, be the water yield that main basis is determined to need to enter film unit and carried out processing with hardness, finally check the indexs such as vitriol and whether meet standard-required.
At coagulating sedimentation unit, the flocculation agent through dissolving to be entered after distribution reservoir mixes with underground water by dosing pump and enters coagulative precipitation tank, and the chemical feeding quantity of flocculation agent is adjusted by test in place.The underground water adding flocculation agent reacts through abundant at coagulative precipitation tank, and the alumen ustum of generation carries the contamination precipitations such as silt, suspended substance, colloid, realizes by regular spoil disposal the object removing water body impurity.According to precalculating water yield blending ratio, produce water and enter mixing sterilization pool by a run by gravity part, the intermediate pool that another part enters desalination unit is for subsequent use.
Intermediate pool water outlet enters ultra-filtration equipment by lift pump and filters, and produces water and enter ultrafiltration product pond after filtering.Ultrafiltration is produced water and is entered nanofiltration cartridge filter by lift pump, prevents burst venture influence nanofiltration membrane element.The water outlet of nanofiltration cartridge filter enters nanofiltration device after improving pressure by topping-up pump and carries out desalination, and nanofiltration is produced water and entered mixing sterilization pool.For ensureing the stable and desalting effect of film device, therefore need to add corresponding medicament.For ultra-filtration equipment, clorox can be added according to membrane element pollution condition in the process of backwash and improve backwash effect, utilize pressurized air to clean simultaneously and recover ultrafiltration membrane elements permeant flux further.For nanofiltration device, need, to indexs such as water inletting monitoring ph, ORP, temperature, to add Scale inhibitors and reductive agent at run duration according to flooding quantity and redox potential index.
For the operation of ultra-filtration equipment, 45 ~ 60min is usually adopted to be a cycle of operation.Include in the cycle of operation and produce water, backwash, air bump rinse operation, just the step such as to wash, the time length of each step can adjust according to operation conditions.
For the operation of nanofiltration device, usually adopt and run continuously.Nanofiltration device is in constant current and runs to regulate nanofiltration service pump service discharge to ensure by frequency transformer.Nanofiltration device needs to produce water continuous flushing with ultrafiltration before start, and flush time is about 3 ~ 5min, the air that object is remover apparatus internal memory ponding and may enters.Device needs before shutting down to produce water continuous flushing with nanofiltration, and time controling is at 5 ~ 10min, and object is replaced completely by water dense in device.
Before nanofiltration device, arrange nanofiltration cartridge filter, in-built filtering accuracy is the filter core of 5 μm, occurs that particulate matter causes membrane element to damage for the protection of abnormal conditions.
When ultra-filtration equipment water production rate declines or transmembrane pressure reaches membrane element standard value, need to run ultrafiltration washing unit.Ultrafiltration washing unit is primarily of ultrafiltration scavenging pump, ultrafiltration cleaning water tank, sodium hypochlorite medicine adding device, electric heater, automatic valve and monitoring instrument composition.Cleaning adopts automatic program to complete to make up a prescription, liquid wash cycles, chemicals liquid discharge, the step such as flushing sequence, finally realize ultra-filtration equipment and resume operation.
When nanofiltration device water production rate declines or intersegmental pressure reduction reaches membrane element standard value, need to run nanofiltration washing unit.Nanofiltration washing unit is primarily of nanofiltration scavenging pump, nanofiltration cleaning water tank, nanofiltration cleaning cartridge filter, electric heater, manually-operated gate and monitoring instrument composition.The step sequences such as cleaning employing is manually made up a prescription, liquid wash cycles, chemicals liquid discharge, flushing, finally realize nanofiltration device and resume operation.
Nanofiltration product water through desalination mixes in sterilization pool with coagulative precipitation tank water outlet, carries out chlorination, guarantee that water body chlorine residue index meets Drinking Water national standard by chlorinating machine.
The present invention is by coagulating sedimentation and membrane separation technique organic assembling, and both performances are advantage separately, reaches the desired result removing ground water hardness, produces the Drinking Water that high-quality is qualified.Under the investment prerequisite reduced as far as possible, improve the comprehensive benefit of municipal water supply factory, provide technical support to the newly-built water factory in China's high rigidity underground water area, old fish drugs, there is good economic benefit and social benefit, wide market.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. high rigidity underground water prepares a treatment system for Drinking Water, it is characterized in that, comprising:
The coagulating sedimentation unit connected successively, intermediate pool, membrane filtration desalination unit and mixing disinfection unit;
Described membrane filtration desalination unit is formed by connecting by ultra filtration unit and nano-filtration unit;
The water side of described coagulating sedimentation unit be provided be connected to described mixing disinfection unit blend water supply pipe;
Described coagulating sedimentation unit is provided with high rigidity groundwater intake;
Described mixing disinfection unit is provided with the rear water outlet of process and chlorine throwing device.
2. a kind of high rigidity underground water as claimed in claim 1 prepares the treatment system of Drinking Water, it is characterized in that, described coagulating sedimentation unit adopts coagulative precipitation tank, the whipping appts that described coagulative precipitation tank is provided with polymerize aluminum chloride and liquid chlorine throwing device and is located in this coagulative precipitation tank pond body;
The lift pump that junctional membrane filters desalination unit is provided with in described intermediate pool.
3. a kind of high rigidity underground water as claimed in claim 1 or 2 prepares the treatment system of Drinking Water, it is characterized in that, described ultra filtration unit is produced pond by ultra-filtration equipment and ultrafiltration and is connected in sequence; Described ultra-filtration equipment is provided with clorox device and sodium hydroxide throwing device and ultrafiltration washing unit, and the topping-up pump being provided with in pond and connecting nano-filtration unit is produced in described ultrafiltration.
4. a kind of high rigidity underground water as claimed in claim 1 or 2 prepares the treatment system of Drinking Water, it is characterized in that, described ultra-filtration equipment adopts the ultra-filtration equipment of dead-end filtration, the ultrafiltration membrane elements of described ultra-filtration equipment PVDF material.
5. a kind of high rigidity underground water as claimed in claim 1 or 2 prepares the treatment system of Drinking Water, it is characterized in that, described nano-filtration unit adopts nanofiltration membrane element to be the nanofiltration device of polyamide composite film, and described nanofiltration device is provided with scale inhibitor feeding device and reductive agent throwing device and nanofiltration washing unit.
6. a kind of high rigidity underground water as claimed in claim 5 prepares the treatment system of Drinking Water, it is characterized in that, described nanofiltration membrane element is greater than 95% to divalent salts ratio of desalinization, runs free chlorine residual and is less than 0.1ppm.
7. a kind of high rigidity underground water as claimed in claim 5 prepares the treatment system of Drinking Water, and it is characterized in that, described nano-filtration unit also comprises: the filtering accuracy being located at nanofiltration device feed-water end is the nanofiltration cartridge filter of 5 μm.
8. a kind of high rigidity underground water as claimed in claim 1 or 2 prepares the treatment system of Drinking Water, it is characterized in that, the water side of described pretreatment unit be provided be connected to described mixing disinfection unit blend water supply pipe.
9. high rigidity underground water prepares a treatment process for Drinking Water, it is characterized in that, adopts the treatment system described in any one of claim 1 to 8, comprises the following steps:
High rigidity underground water enters coagulating sedimentation unit and carries out coagulating sedimentation pre-treatment, the pretreated outlet part of coagulating sedimentation is divided into membrane filtration desalination unit and carries out filtration desalting treatment, the pretreated water outlet of another part coagulating sedimentation enters sterilization mixed cell, the water outlet of filtering after desalting treatment enters sterilization mixed cell, mix with the pretreated water outlet of the coagulating sedimentation entered after disinfecting and add chlorine, the final tap water producing water and meet Drinking Water national standard.
10. a kind of high rigidity underground water as claimed in claim 9 prepares the treatment process of Drinking Water, it is characterized in that, it is polymerize aluminum chloride and liquid chlorine that described coagulating sedimentation pre-treatment adds medicament.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000726A (en) * | 2015-09-02 | 2015-10-28 | 波鹰(厦门)科技有限公司 | Method for treating and recycling high-salt oil-field wastewater |
| CN105859002A (en) * | 2016-04-26 | 2016-08-17 | 广州中国科学院先进技术研究所 | Device for removing disinfection byproducts in water |
| CN105858955A (en) * | 2016-04-26 | 2016-08-17 | 广州中国科学院先进技术研究所 | Method for removing disinfection by-products in water |
| CN106186429A (en) * | 2016-08-18 | 2016-12-07 | 成都振中电气有限公司 | A kind of desalination treatment system |
| CN106277491A (en) * | 2015-05-24 | 2017-01-04 | 陕西理工学院 | Micro-polluted lower water purification system |
| CN106746012A (en) * | 2016-12-30 | 2017-05-31 | 北京桑德环境工程有限公司 | A kind of municipal water supply advanced treatment system and method |
| CN107365002A (en) * | 2016-05-11 | 2017-11-21 | 昆明石林青龙矿泉饮料有限公司 | A kind of preparation method of cold boiled water water |
| CN108046376A (en) * | 2018-01-26 | 2018-05-18 | 常州大学 | A kind of method of drinking water production |
| CN110304778A (en) * | 2019-07-17 | 2019-10-08 | 青岛沃赛海水淡化科技有限公司 | A kind of bitter treatment process |
| CN111056666A (en) * | 2019-11-28 | 2020-04-24 | 中山公用水务有限公司 | Water purification treatment system |
| CN112250224A (en) * | 2020-11-10 | 2021-01-22 | 福州城建设计硏究院有限公司 | Water purification treatment device and water purification treatment method for desalinated brackish water |
| CN112830609A (en) * | 2019-11-25 | 2021-05-25 | 天津大学 | Drinking water purification system and method |
| CN113651461A (en) * | 2021-09-10 | 2021-11-16 | 安徽科博瑞环境科技有限公司 | Process for preparing drinking water by underground water advanced treatment |
| CN114804298A (en) * | 2022-04-07 | 2022-07-29 | 天津美天水环境科技有限公司 | Membrane-process tap water plant production wastewater treatment system and method |
| CN116621396A (en) * | 2023-07-21 | 2023-08-22 | 金科环境股份有限公司 | Water treatment system for delaying aluminum pollution and water treatment control method |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277491A (en) * | 2015-05-24 | 2017-01-04 | 陕西理工学院 | Micro-polluted lower water purification system |
| CN105000726A (en) * | 2015-09-02 | 2015-10-28 | 波鹰(厦门)科技有限公司 | Method for treating and recycling high-salt oil-field wastewater |
| CN105859002B (en) * | 2016-04-26 | 2019-01-18 | 广州中国科学院先进技术研究所 | Remove the device of disinfection by-products in water removal |
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| CN106186429A (en) * | 2016-08-18 | 2016-12-07 | 成都振中电气有限公司 | A kind of desalination treatment system |
| CN106746012A (en) * | 2016-12-30 | 2017-05-31 | 北京桑德环境工程有限公司 | A kind of municipal water supply advanced treatment system and method |
| CN108046376A (en) * | 2018-01-26 | 2018-05-18 | 常州大学 | A kind of method of drinking water production |
| CN110304778A (en) * | 2019-07-17 | 2019-10-08 | 青岛沃赛海水淡化科技有限公司 | A kind of bitter treatment process |
| CN112830609A (en) * | 2019-11-25 | 2021-05-25 | 天津大学 | Drinking water purification system and method |
| CN111056666A (en) * | 2019-11-28 | 2020-04-24 | 中山公用水务有限公司 | Water purification treatment system |
| CN112250224A (en) * | 2020-11-10 | 2021-01-22 | 福州城建设计硏究院有限公司 | Water purification treatment device and water purification treatment method for desalinated brackish water |
| CN113651461A (en) * | 2021-09-10 | 2021-11-16 | 安徽科博瑞环境科技有限公司 | Process for preparing drinking water by underground water advanced treatment |
| CN114804298A (en) * | 2022-04-07 | 2022-07-29 | 天津美天水环境科技有限公司 | Membrane-process tap water plant production wastewater treatment system and method |
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