CN110877939A - Technology for comprehensively utilizing reverse osmosis wastewater of direct drinking water - Google Patents
Technology for comprehensively utilizing reverse osmosis wastewater of direct drinking water Download PDFInfo
- Publication number
- CN110877939A CN110877939A CN201811038891.4A CN201811038891A CN110877939A CN 110877939 A CN110877939 A CN 110877939A CN 201811038891 A CN201811038891 A CN 201811038891A CN 110877939 A CN110877939 A CN 110877939A
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- Prior art keywords
- water
- reverse osmosis
- wastewater
- flushing
- quartz sand
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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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by 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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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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
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a direct drinking water reverse osmosis wastewater comprehensive utilization technology, which is a water treatment technology for corresponding to corresponding treatment modes under different water quality conditions so as to comprehensively utilize the wastewater, and the system comprises: the system for collecting and storing the concentrated water generated by the reverse osmosis membrane filter operation, the connecting structure of the concentrated water tank, the quartz sand and activated carbon filtering and flushing system, and the wastewater reclaimed water recycling system connected with the quartz sand, activated carbon flushing system and the reverse osmosis cleaning system.
Description
Technical Field
The invention relates to a reverse osmosis water production system, in particular to a technology for comprehensively utilizing reverse osmosis wastewater of direct drinking water.
Background
The traditional reverse osmosis water production system for direct drinking water involves more wastewater discharge during operation, and the wastewater has different pollution degrees, for example, the most discharged water is concentrated water during the operation of a reverse osmosis membrane filtration system, and the concentrated water is subjected to pretreatment links such as quartz sand, activated carbon and the like, so that the content of soluble substances is increased during the reverse osmosis membrane filtration treatment, and the cleanness degree of the concentrated water is enough to meet the conventional cleaning requirement; the chemical cleaning wastewater filtered by the reverse osmosis membrane contains more pollutants, but can be collected to be used as a water source of a reclaimed water recycling system.
In the water preparation system is directly drunk to tradition, the washing process of quartz sand, active carbon system, its water source generally chooses the running water for use, and it needs to adjust according to each filter pollution condition to wash frequency and length of operation, has to pollute the accumulation too much unable washing recovery to and wash the condition that too frequent waste water and filter material wearing and tearing with higher speed.
Disclosure of Invention
The invention aims to solve the problems, the invention uses the collected concentrated water which has the maximum discharge amount and higher cleanliness and is discharged during the reverse osmosis membrane filtration treatment as a washing water source of quartz sand and an active carbon filter, and uses the effective volume of a concentrated water tank as an important design basis of the washing frequency and the operation duration of the quartz sand and the active carbon filter; and collecting the wastewater discharged by all other systems as a water source of a reclaimed water reuse system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the direct drinking water reverse osmosis waste water comprehensive utilization technology comprises: the system comprises a system for collecting and storing concentrated water generated by reverse osmosis operation, a connecting structure of a concentrated water tank and a quartz sand filtering and flushing system, and a wastewater collecting and reclaimed water recycling system, wherein the concentrated water tank and the quartz sand filtering and flushing system are connected with a quartz sand, activated carbon flushing system and a reverse osmosis cleaning system; the concentrated water collecting system of the reverse osmosis membrane filtration system comprises a concentrated water tank which is independently arranged, and the concentrated water tank is connected with a liquid level control system and an overflow device; the effective volume of the concentrated water tank is set according to the water consumption for completing the single flushing process of the quartz sand and the activated carbon filter, a high liquid level monitoring device is arranged, incoming water exceeding the effective volume is discharged through an overflow device, and a low liquid level control system is arranged to start the flushing process when water shortage is avoided.
Furthermore, the flushing process of the quartz sand and activated carbon filters in the system is started by stopping the water production flow, the triggering of the high liquid level monitoring by the water level in the concentrated water tank is used as an initial condition, the concentrated water in the concentrated water tank is used as a flushing water source, a tap water source is used as supplement, the conventional flushing time and process design are related to the effective volume of the concentrated water tank, the frequency can be properly improved, and the flushing intensity and duration can be properly reduced.
Furthermore, after the flushing wastewater of the quartz sand and the activated carbon filter and the activation regeneration discharge wastewater of the softener are collected in a wastewater tank, the chemical cleaning discharge wastewater of the reverse osmosis membrane filtration system is simply precipitated in the tank, the precipitate is periodically discharged, and after the chlorine-containing disinfectant is periodically added, the precipitate is used as a reclaimed water source and enters a reclaimed water recycling system to complete the final water resource utilization.
Furthermore, the washing process is backwashing and positive washing.
Compared with the prior art, the invention has the beneficial effects that: the start of the flushing process of the quartz sand and activated carbon filters in the system is stopped by a water production flow, the water level in the concentrated water tank triggers high liquid level monitoring to serve as an initial condition, the concentrated water in the concentrated water tank serves as a flushing water source, a tap water source can be used as supplement if necessary, the conventional flushing time and process design are related to the effective volume of the concentrated water tank, the frequency can be properly improved, and the flushing intensity and duration can be properly reduced.
The flushing wastewater of quartz sand and activated carbon filters in the system is activated and regenerated by a softener to discharge wastewater, and the chemical cleaning wastewater discharged by a reverse osmosis membrane filtration system is collected in a wastewater tank, is simply precipitated in the tank, is periodically discharged, is periodically added with a chlorine-containing disinfectant and then enters a reclaimed water recycling system as a reclaimed water source to complete the final utilization of water resources.
Drawings
FIG. 1 is a drawing of the present invention: the direct drinking water reverse osmosis wastewater comprehensive utilization technology system structure block diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in figure 1, quartz sand, an activated carbon filter, a reverse osmosis membrane filtration system, a concentrated water tank, a waste water tank and a reclaimed water recycling system are connected in sequence according to the figure.
When a reverse osmosis water production system of direct drinking water normally runs, concentrated water of a reverse osmosis membrane filtration system is collected into a concentrated water tank, the effective volume of the concentrated water tank is set according to the water consumption of a single flushing process (comprising backwashing, positive flushing and other processes) of quartz sand and an activated carbon filter, a high liquid level monitoring device is arranged, but the effective volume of incoming water is not controlled by intercepting the incoming water, incoming water exceeding the effective volume is discharged by an overflow device (the concentrated water discharged by overflow directly enters a reclaimed water recycling system), and the flushing process is started when the low liquid level control system is set to prevent water shortage.
The start of the washing process of the quartz sand and activated carbon filter is stopped by a normal water production process, the water level in the concentrated water tank triggers high liquid level monitoring to serve as an initial condition, the concentrated water in the concentrated water tank serves as a washing water source, a tap water source can be used as supplement if necessary, the washing frequency can be properly increased to once after the normal water production process is finished every 2-4 times, and the washing intensity and duration can be properly reduced.
The washing wastewater of the quartz sand and the activated carbon filter, the activation regeneration discharge wastewater of the softener, and the chemical cleaning discharge wastewater of the reverse osmosis membrane filtration system are collected in a wastewater tank, are simply precipitated in the tank, are periodically discharged, and are used as a reclaimed water source to enter a reclaimed water recycling system after being periodically added with a chlorine-containing disinfectant, so that the final water resource utilization is completed.
The kit moving device is reasonable in design, simple to manufacture, convenient to move the kit, free of time delay, capable of avoiding the situation that experimental articles are splashed to hurt people in the process of directly moving the kit, capable of adjusting the square frame in an up-and-down mode, convenient to use, suitable for fixedly placing various different kits and wide in application range due to the fact that the two semicircular rings are adopted for clamping the kit.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. Direct drinking water reverse osmosis waste water comprehensive utilization technique is including collecting the system that stores reverse osmosis operation production dense water, and the connection structure of flushing system is filtered with quartz sand to dense water tank, its characterized in that: the concentrated water tank and the quartz sand filtering and washing system are connected with the quartz sand, the activated carbon washing system and the reverse osmosis cleaning system through a wastewater collection and reclaimed water recycling system; the concentrated water collecting system of the reverse osmosis membrane filtration system comprises a concentrated water tank which is independently arranged, and the concentrated water tank is connected with a liquid level control system and an overflow device; the effective volume of the concentrated water tank is set according to the water consumption for completing the single flushing process of the quartz sand and the activated carbon filter, a high liquid level monitoring device is arranged, incoming water exceeding the effective volume is discharged through an overflow device, and a low liquid level control system is arranged to start the flushing process when water shortage is avoided.
2. A direct drinking water reverse osmosis wastewater comprehensive utilization technology as claimed in claim 1, wherein: the start of the flushing process of the quartz sand and activated carbon filters in the system is stopped by a water production flow, the triggering of a high liquid level monitoring by the water level in the concentrated water tank is used as an initial condition, the concentrated water in the concentrated water tank is used as a flushing water source, a tap water source is used as a supplement, the conventional flushing time and process design are related to the effective volume of the concentrated water tank, the frequency can be properly improved, and the flushing intensity and duration can be properly reduced.
3. A direct drinking water reverse osmosis wastewater comprehensive utilization technology as claimed in claim 1, wherein: the washing wastewater of the quartz sand and the activated carbon filter, the activation regeneration discharge wastewater of the softener, and the chemical cleaning discharge wastewater of the reverse osmosis membrane filtration system are collected in a wastewater tank, are simply precipitated in the tank, are periodically discharged, and are used as a reclaimed water source to enter a reclaimed water recycling system after being periodically added with a chlorine-containing disinfectant, so that the final water resource utilization is completed.
4. A direct drinking water reverse osmosis wastewater comprehensive utilization technology as claimed in claim 1, wherein: the washing process is backwashing and positive flushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038891.4A CN110877939A (en) | 2018-09-06 | 2018-09-06 | Technology for comprehensively utilizing reverse osmosis wastewater of direct drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038891.4A CN110877939A (en) | 2018-09-06 | 2018-09-06 | Technology for comprehensively utilizing reverse osmosis wastewater of direct drinking water |
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| Publication Number | Publication Date |
|---|---|
| CN110877939A true CN110877939A (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811038891.4A Pending CN110877939A (en) | 2018-09-06 | 2018-09-06 | Technology for comprehensively utilizing reverse osmosis wastewater of direct drinking water |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841485A (en) * | 1972-05-08 | 1974-10-15 | Permutit Co Inc | Automatically backwashed gravity filter |
| CN1138649A (en) * | 1995-06-15 | 1996-12-25 | 吴伟伦 | Flush apparatus |
| CN101475278A (en) * | 2009-02-03 | 2009-07-08 | 江阴市虎跑环保科技有限公司 | Full-automatic reclaimed water recycling machine |
| CN202089809U (en) * | 2011-06-20 | 2011-12-28 | 内蒙古电力勘测设计院 | Backwashing system of filter |
| CN202460231U (en) * | 2011-11-29 | 2012-10-03 | 郑安犁 | Gravity hydraulic self-control single-valve filter |
-
2018
- 2018-09-06 CN CN201811038891.4A patent/CN110877939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841485A (en) * | 1972-05-08 | 1974-10-15 | Permutit Co Inc | Automatically backwashed gravity filter |
| CN1138649A (en) * | 1995-06-15 | 1996-12-25 | 吴伟伦 | Flush apparatus |
| CN101475278A (en) * | 2009-02-03 | 2009-07-08 | 江阴市虎跑环保科技有限公司 | Full-automatic reclaimed water recycling machine |
| CN202089809U (en) * | 2011-06-20 | 2011-12-28 | 内蒙古电力勘测设计院 | Backwashing system of filter |
| CN202460231U (en) * | 2011-11-29 | 2012-10-03 | 郑安犁 | Gravity hydraulic self-control single-valve filter |
Non-Patent Citations (3)
| Title |
|---|
| 宋瑞: "《基础制药设备》", 30 June 2015 * |
| 环境保护部科技标准司编: "《中国环境保护标准全书 2010-2011年 上》", 30 November 2011 * |
| 田军: "《日常节能环保知识问答》", 31 December 2006 * |
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Application publication date: 20200313 |