CN113845249A - System and process for treating tap water for ceramic membrane-based tap water plant - Google Patents
System and process for treating tap water for ceramic membrane-based tap water plant Download PDFInfo
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- 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
- C02F1/5281—Installations for water purification using chemical agents
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F2303/14—Maintenance of water treatment installations
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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
- C02F2303/16—Regeneration of sorbents, filters
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
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- Engineering & Computer Science (AREA)
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- Water Supply & Treatment (AREA)
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a system and a process for treating tap water for a tap water plant based on a ceramic membrane, which relate to the field of tap water treatment and comprise an ozone generator, wherein the ozone generator is connected with an ozone dissolving area through a gas pipe, the ozone dissolving area is connected with a pressure type charcoal sand pretreatment area, the pressure type charcoal sand pretreatment area is connected with a ceramic membrane filtering area, and the ceramic membrane filtering area is connected with a clear water area. Compared with the prior art, the invention has the beneficial effects that: the process flow is short, the treatment efficiency is high, and the operation and maintenance cost of a water plant is reduced.
Description
Technical Field
The invention relates to the field of tap water treatment, in particular to a system and a process for treating tap water for a ceramic membrane-based tap water plant.
Background
Water is an important natural resource, is an economic resource, and is an indispensable component for production and life of people. Tap water plants are direct sources of water for residents, and the key to converting water resources which cannot be directly drunk into drinkable water is the water supply treatment technology. At present, most water supply plants in China adopt a conventional treatment process, the main processes of the conventional treatment process comprise coagulation, precipitation, filtration, ozone activated carbon (or ultrafiltration, reverse osmosis) and disinfection, a water purification process adopts a single coagulant, the components comprise aluminum sulfate, polyaluminium chloride and the like, the single coagulant has higher medicament cost, a precipitation structure of a large and medium-sized water plant is a horizontal flow type precipitation tank, the occupied area is large, the retention time is long, a common fast filter or siphon filter is also adopted in the filter, the biological leakage risk exists, and the filtering effect is also related to the production management of the water plant. Most of the disinfectants are disinfected by chlorine, and part of rural and town water supply plants are disinfected by disinfectant tablets.
The pollution problem of water resources cannot be ignored, and the traditional water purification process is insufficient for treating some new water quality problems and cannot meet the requirements of the current social development, so that a ceramic membrane-based short-flow process is adopted for replacing the conventional feed water treatment process of coagulation, precipitation, filtration, ozone activated carbon (or ultrafiltration, reverse osmosis) and disinfection aiming at a surface water source. The process flow is shorter, the treatment efficiency is higher, ozone dissolved gas passes through the pressure type carbon sand pretreatment area, the advantages of ozone oxidation on removal of chromaticity, odor substances, algae, organic matters and the like can be exerted, the filter capacity of the ceramic membrane is matched, the adaptability to water quality change is stronger, the operation and maintenance cost of a water plant can be reduced, and the safety of drinking water is ensured.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the system and the process for treating the tap water for the ceramic membrane-based tap water plant, which have the advantages of short process flow, high treatment efficiency and reduced operation and maintenance cost of the water plant.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a system for handle running water based on ceramic membrane water works, includes ozone generator, ozone generator passes through the gas union coupling ozone dissolved gas district, the ozone dissolves the gas district and connects pressure type charcoal sand preliminary treatment district, pressure type charcoal sand preliminary treatment district connects the ceramic membrane filtering area, the clear water district is connected to the ceramic membrane filtering area.
Ozone dissolves gas district and includes dissolved air pump/other gas devices that dissolve, dissolved air pump/other gas devices that dissolve connect inlet tube and pressure type charcoal sand preliminary treatment district, set up the flowmeter on the inlet tube.
The pressure type charcoal sand pretreatment area comprises a reaction box, the reaction box is communicated with a water inlet valve and a water discharge valve, a water distribution system is arranged at the bottom end inside the reaction box, a sand layer is arranged at the top end of the water distribution system, a charcoal layer is arranged at the top end of the sand layer, a water collector is arranged at the top end of the reaction box, and the reaction box is communicated with a gas discharge valve, a water outlet valve, a pressure gauge and a water level gauge.
The ceramic membrane filtering area comprises a filtering box, a ceramic microfiltration membrane is arranged in the filtering box, and the filtering box is connected with a drain valve, a water outlet valve a, a pressure gauge a, a water inlet valve a, a release valve and a water flushing valve.
The device is characterized by further comprising a tail gas destruction device, wherein the ozone gas dissolving area, the pressure type carbon sand pretreatment area and the ceramic membrane filtering area are all connected with the tail gas destruction device.
The pressure type carbon sand pretreatment area is connected with a back washing unit of the pressure type carbon sand pretreatment area.
The ceramic membrane filtering area is connected with a backwashing unit of the ceramic membrane filtering area.
A process for treating tap water for a ceramic membrane-based tap water plant, comprising the steps of:
s1 calculating ozone demand according to flow (g/h is 1.06 factor x g/m)3X water amount m3H), starting an ozone flowmeter and adjusting parameters;
s2, opening a water inlet valve a, a water outlet valve a, a pressure reducing valve and a pressure gauge a of the ceramic membrane filtering area;
s3, starting to feed water, and opening the tail gas destruction device and the ozone generator;
s4 operating the air dissolving pump/other air dissolving device;
s5, detecting the effluent turbidity of the pressure type carbon sand pretreatment device every 2-5h, and performing backwashing when the effluent turbidity is higher than 1 NTU;
s6, feeding the treated water into a clear water area, and supplementing chlorine to the outlet water of the clear water area according to the water quality requirement;
s7 backwashing the pressure type charcoal sand pretreatment area;
s8 backwashing the ceramic membrane filtration zone.
When the effluent turbidity of the pressure type carbon sand pretreatment area exceeds 1NTU, or the pressure type carbon sand pretreatment area continuously runs for 24-48h, the pressure type carbon sand pretreatment area needs to be backwashed, and the backwashing of the pressure type carbon sand pretreatment area comprises the following steps:
s1, closing a water inlet valve of the pressure type charcoal sand pretreatment area to be washed, closing a water outlet valve of the pressure type charcoal sand pretreatment area, and opening a water discharge valve of the pressure type charcoal sand pretreatment area;
s2, adjusting a three-way valve arranged in the pressure type charcoal sand pretreatment area, switching on a back flushing unit of the pressure type charcoal sand pretreatment area, operating the back flushing unit of the pressure type charcoal sand pretreatment area, and starting back flushing operation;
after the backwashing of the S3, stopping running the backwashing unit of the pressure type charcoal sand pretreatment area, adjusting a three-way valve of the pressure type charcoal sand pretreatment area, and disconnecting the backwashing unit connected with the pressure type charcoal sand pretreatment area;
s4, closing the drain valve of the pressure type charcoal sand pretreatment area, opening the water outlet valve and opening the water inlet valve of the pressure type charcoal sand pretreatment area.
The backwashing ceramic membrane filtering zone comprises the following steps:
s1, when the filtered water yield is obviously reduced under the same pressure, the backwashing is started, and the water inlet valve a and the water outlet valve a of the ceramic membrane filtering area are closed;
s2, opening a water flushing valve and a drain valve of the ceramic membrane filtering area, and operating a backwashing unit of the ceramic membrane filtering area;
and (5) after the S3 backwashing is finished, stopping running the backwashing unit of the ceramic membrane filtering area, and closing the water flushing valve and the drain valve of the ceramic membrane filtering area.
Compared with the prior art, the invention has the beneficial effects that:
1. in the ozone gas dissolving area, an ozone flowmeter is adopted to control the flow ratio of ozone, and ozone is dissolved into the inlet water through a gas dissolving pump/other gas dissolving devices to directly oxidize organic matters in the water;
2. in the pressure type carbon sand pretreatment area, the sand layer and the carbon layer have a cutting effect on ozone bubbles, the sand layer at the water inlet end serves as a primary filtering and ozone reaction area, and the carbon layer behind the primary filtering and ozone reaction area adsorbs micromolecular organic matters after ozone oxidation, so that ozone oxidation can be performed, and great advantages are provided for removing chroma, odor substances, algae, organic matters and the like;
3. the ceramic membrane filtering area has the functions of membrane filtration and advanced ozone oxidation, generates finer ozone microbubbles and further removes SS, algae, microorganisms and the like in water;
4. the clear water area has the regulation function of a common clear water tank, can be used as a reaction area of residual ozone and a chlorination disinfection area, volatilizes and decomposes the residual ozone in water by regulating the standing time, and supplements chlorine according to the requirement to meet the water quality requirement of drinking water;
5. residual ozone generated by the system is introduced into the clean water area, and if residual ozone exists after reaction, the residual ozone enters the tail gas destructor to be decomposed and destroyed through the tail gas destructor, so that the environment is prevented from being polluted;
drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural diagram of a pressure type carbon sand pretreatment area device of the present invention;
FIG. 3 is a schematic structural diagram of the ceramic membrane filtration zone apparatus of the present invention.
Reference numerals shown in the drawings:
1. a reaction box; 2. a water inlet valve; 3. a drain valve; 4. a water distribution system; 5. a sand layer; 6. a carbon layer; 7. a deflation valve; 8. a water outlet valve; 9. a pressure gauge; 10. a water level gauge; 11. a water collector; 12. a filter box; 13. a ceramic microfiltration membrane; 14. a drain valve a; 15. a water outlet valve a; 16. a pressure gauge a; 17. a water inlet valve a; 18. a deflation valve; 19. and (4) flushing the valve with water.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The water inlet pipe is connected with an overrunning pipeline, the water inlet pipeline is provided with two branches, one branch is connected with a pressure type charcoal sand pretreatment area, the other branch is connected with an ozone gas dissolving area, the switch of the overrunning pipeline is controlled by a gate valve on the overrunning pipeline, a partial treatment area can be overtaken according to the condition of water quality of water inlet, various process forms are formed, the treatment time of tap water is saved, the work efficiency is improved, and the system can be suitable for treatment of different water qualities.
The first embodiment is as follows:
the surpassing pipeline is not opened, and the process forms of ozone, pressure type charcoal sand pretreatment and ceramic membrane filtration are formed.
The method comprises the following steps:
s1 calculating ozone demand according to flow (g/h is 1.06 factor x g/m)3X water amount m3H), starting an ozone flowmeter and adjusting parameters;
s2, opening a water inlet valve a17, a water outlet valve a15, a pressure reducing valve and a pressure gauge a16 of a ceramic membrane filtering area, wherein the ceramic membrane filtering area has membrane filtering and ozone advanced oxidation functions, generates finer ozone microbubbles, and further removes SS, algae, microorganisms and the like in water;
s3, starting to feed water, and opening the tail gas destruction device and the ozone generator;
s4 operating the air dissolving pump/other air dissolving device;
s5, detecting the effluent turbidity and the pH value of the pressure type charcoal sand pretreatment device every 2-5h, cutting ozone bubbles by a sand layer and a charcoal layer, using the sand layer at the water inlet end as a primary filtering and ozone reaction area, adsorbing micromolecule organic matters after ozone oxidation by the charcoal layer, and exerting the advantages of ozone oxidation on removing chromaticity, odor substances, algae, organic matters and the like;
and (4) allowing the water treated by the S6 to enter a clear water area, volatilizing and decomposing residual ozone in the water by adjusting standing time, and supplementing chlorine according to water quality requirements to meet the water quality requirements of drinking water.
When the effluent turbidity of the pressure type carbon sand pretreatment area exceeds 1NTU, or the pressure type carbon sand pretreatment area continuously runs for 24-48h, the pressure type carbon sand pretreatment area needs to be backwashed, and the backwashing of the pressure type carbon sand pretreatment area comprises the following steps:
s1, closing the water inlet valve 2 of the pressure type charcoal sand pretreatment area to be washed, closing the water outlet valve 8 of the pressure type charcoal sand pretreatment area, and opening the water discharge valve 3 of the pressure type charcoal sand pretreatment area;
s2, adjusting a three-way valve arranged in the pressure type charcoal sand pretreatment area, switching on a back flushing unit of the pressure type charcoal sand pretreatment area, operating the back flushing unit of the pressure type charcoal sand pretreatment area, and starting back flushing operation;
after the backwashing of the S3, stopping running the backwashing unit of the pressure type charcoal sand pretreatment area, adjusting a three-way valve of the pressure type charcoal sand pretreatment area, and disconnecting the backwashing unit connected with the pressure type charcoal sand pretreatment area;
s4, closing the drain valve 3 of the pressure type charcoal sand pretreatment area, opening the water outlet valve 8, and opening the water inlet valve 2 of the pressure type charcoal sand pretreatment area.
The backwashing ceramic membrane filtering zone comprises the following steps:
s1, when the filtered water yield is obviously reduced under the same pressure, the backwashing is started, and the water inlet valve a17 and the water outlet valve a15 of the ceramic membrane filtering area are closed;
s2, opening the water flushing valve 19 and the drain valve 14 of the ceramic membrane filtering area, and operating the backwashing unit of the ceramic membrane filtering area;
and (5) after the S3 backwashing is finished, stopping running the backwashing unit of the ceramic membrane filtering area, and closing the water flushing valve 19 and the drain valve 14 of the ceramic membrane filtering area.
Example two:
surpass the pressure type carbon sand pretreatment area to form the ozone and ceramic membrane filtration process.
Trial example three:
surpassing the ozone gas dissolving area and the pressure type carbon sand pretreatment area to form a ceramic membrane filtration process.
Example four:
the front end of the dissolved air pump/other dissolved air devices is provided with a flocculating agent dosing port, the clear water area is provided with a chlorine supplementing dosing port, the dosing amount is judged according to the water quality condition after treatment and the sanitary Standard for Drinking Water (GB 5749-2006), and the dosing is not required to be carried out in advance, so that the system has the characteristics of less dosing and no dosing.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the features described above have similar functions to (but are not limited to) those disclosed in this application.
Claims (10)
1. The utility model provides a system for handle running water based on ceramic membrane water works which characterized in that: the ozone generator is connected with an ozone dissolving area through a gas pipe, the ozone dissolving area is connected with a pressure type charcoal sand pretreatment area, the pressure type charcoal sand pretreatment area is connected with a ceramic membrane filtration area, and the ceramic membrane filtration area is connected with a clear water area.
2. The system for treating tap water for ceramic membrane based water works according to claim 1, wherein: ozone dissolves gas district and includes dissolved air pump/other gas devices that dissolve, dissolved air pump/other gas devices that dissolve connect inlet tube and pressure type charcoal sand preliminary treatment district, set up the flowmeter on the inlet tube.
3. The system for treating tap water for ceramic membrane based water works according to claim 1, wherein: pressure type charcoal sand preliminary treatment district includes reaction box (1), reaction box (1) intercommunication water intaking valve (2) and drain valve (3), the inside bottom of reaction box (1) sets up water distribution system (4), water distribution system (4) top sets up sand bed (5), sand bed (5) top sets up charcoal layer (6), reaction box (1) top sets up water collector (11), reaction box (1) intercommunication bleed valve (7), outlet valve (8), manometer (9) and fluviograph (10).
4. The system for treating tap water for ceramic membrane based water works according to claim 1, wherein: the ceramic membrane filtering area comprises a filtering box (12), a ceramic micro-filtration membrane (13) is arranged in the filtering box (12), and the filtering box is connected with a drain valve (14), a water outlet valve a (15), a pressure gauge a (16), a water inlet valve a (17), a release valve (18) and a water flushing valve (19).
5. A system for treating tap water for ceramic membrane based water works according to any one of claims 1 to 4, wherein: the device is characterized by further comprising a tail gas destruction device, wherein the ozone gas dissolving area, the pressure type carbon sand pretreatment area and the ceramic membrane filtering area are all connected with the tail gas destruction device.
6. A system for treating tap water for ceramic membrane based water works according to any one of claims 1 to 4, wherein: the pressure type carbon sand pretreatment area is connected with a pressure type carbon sand pretreatment area backwashing unit, and the pressure type carbon sand pretreatment area backwashing unit is connected with the clear water area.
7. A system for treating tap water for ceramic membrane based water works according to any one of claims 1 to 4, wherein: the ceramic membrane filtering area is connected with a ceramic membrane filtering area backwashing unit, and the ceramic membrane filtering area is connected with the ceramic membrane filtering area backwashing unit and is connected with the clean water area.
8. A process for treating tap water for a ceramic membrane-based tap water plant is characterized by comprising the following steps:
s1 calculating ozone demand according to flow (ozone demand g/h is 1.06 factor x ozone adding amount g/m)3X water amount m3H), starting an ozone flowmeter and adjusting parameters;
s2, opening a water inlet valve (2) and a water outlet valve (8) of the pressure type carbon sand pretreatment area, and opening a water inlet valve a (17), a water outlet valve a (15), a pressure reducing valve and a pressure gauge a (16) of the ceramic membrane filtration area;
starting water feeding in the S3 ceramic membrane filtering area, and opening a tail gas destruction device and an ozone generator;
s4 operating the air dissolving pump/other air dissolving device;
s5, detecting the effluent turbidity of the pressure type carbon sand pretreatment device every 2-5h, and performing backwashing when the effluent turbidity is higher than 1 NTU;
and (4) allowing the water treated by the S6 to enter a clear water area, and supplementing chlorine to the outlet water of the clear water area according to the water quality requirement.
9. The process for treating tap water for a ceramic membrane-based water works as claimed in claim 8, wherein the pressure type sand pre-treatment zone is backwashed when the turbidity of the effluent exceeds 1NTU or the pressure type sand pre-treatment zone is continuously operated for 24-48h, and the pressure type sand pre-treatment zone is backwashed, wherein the pressure type sand pre-treatment zone comprises the following steps:
s1, closing a water inlet valve (2) of the pressure type charcoal sand pretreatment area to be washed, closing a water outlet valve (8) of the pressure type charcoal sand pretreatment area, and opening a water discharge valve (3) of the pressure type charcoal sand pretreatment area;
s2, adjusting a three-way valve arranged in the pressure type charcoal sand pretreatment area, switching on a back flushing unit of the pressure type charcoal sand pretreatment area, operating the back flushing unit of the pressure type charcoal sand pretreatment area, and starting back flushing operation;
after the backwashing of the S3, stopping running the backwashing unit of the pressure type charcoal sand pretreatment area, adjusting a three-way valve of the pressure type charcoal sand pretreatment area, and disconnecting the backwashing unit connected with the pressure type charcoal sand pretreatment area;
s4, closing the drain valve (3) of the pressure type charcoal sand pretreatment area, opening the water outlet valve (8) and opening the water inlet valve (2) of the pressure type charcoal sand pretreatment area.
10. A process for treating tap water for ceramic membrane based water works according to claim 8 or 9, wherein backwashing the ceramic membrane filtration zone comprises the steps of:
s1, when the filtered water yield is obviously reduced under the same pressure, the backwashing is started, and the water inlet valve a (17) and the water outlet valve a (15) of the ceramic membrane filtering area are closed;
s2, opening a water flushing valve (19) and a drain valve (14) of the ceramic membrane filtering area, and operating a backwashing unit of the ceramic membrane filtering area;
and (3) after the S3 backwashing is finished, stopping running the backwashing unit of the ceramic membrane filtering area, and closing the water flushing valve (19) and the drain valve (14) of the ceramic membrane filtering area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111117164.9A CN113845249A (en) | 2021-09-23 | 2021-09-23 | System and process for treating tap water for ceramic membrane-based tap water plant |
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| CN202111117164.9A CN113845249A (en) | 2021-09-23 | 2021-09-23 | System and process for treating tap water for ceramic membrane-based tap water plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116924631A (en) * | 2023-09-01 | 2023-10-24 | 珠海九通水务股份有限公司 | Short-flow high-quality water treatment device and water treatment method |
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2021
- 2021-09-23 CN CN202111117164.9A patent/CN113845249A/en active Pending
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| JP2002059194A (en) * | 2000-08-23 | 2002-02-26 | Nippon Steel Corp | Treatment method of raw water |
| CN103420519A (en) * | 2012-05-14 | 2013-12-04 | 上海市政工程设计研究总院（集团）有限公司 | Combined processing technology for slightly polluted raw water |
| CN207708595U (en) * | 2017-04-13 | 2018-08-10 | 广州衡茂环保科技有限公司 | A kind of backwashing system of sand carbon filter |
| CN107628702A (en) * | 2017-09-25 | 2018-01-26 | 广东粤港供水有限公司 | A kind of ozone ceramics dual-membrane process water treatment facilities and method for treating water |
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| 中央爱国卫生运动委员会办公室主编: "《下水道设施设计指南与解说 1984年版》", pages: 334 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116924631A (en) * | 2023-09-01 | 2023-10-24 | 珠海九通水务股份有限公司 | Short-flow high-quality water treatment device and water treatment method |
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