CN112125406A - Small landscape water body water quality maintaining system and method - Google Patents
Small landscape water body water quality maintaining system and method Download PDFInfo
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- CN112125406A CN112125406A CN202010994521.9A CN202010994521A CN112125406A CN 112125406 A CN112125406 A CN 112125406A CN 202010994521 A CN202010994521 A CN 202010994521A CN 112125406 A CN112125406 A CN 112125406A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 229
- 210000000476 body water Anatomy 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 54
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 241000195493 Cryptophyta Species 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- 241000192700 Cyanobacteria Species 0.000 claims description 6
- -1 ammonia nitrogen ions Chemical class 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003818 cinder Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000009287 sand filtration Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 16
- 231100000719 pollutant Toxicity 0.000 abstract description 16
- 238000000746 purification Methods 0.000 description 11
- 241000251468 Actinopterygii Species 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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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
- C02F2209/005—Processes using a programmable logic controller [PLC]
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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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- C02F2209/14—NH3-N
-
- 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
- C02F2209/22—O2
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- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a small-sized landscape water body water quality maintaining system, which comprises a landscape water body and an intelligent monitoring system, wherein the intelligent monitoring system comprises a remote control end, a PLC central control module, an artificial water quality intervention module and a water quality parameter monitoring module arranged in the landscape water body, the landscape water body is connected with two circulating paths, one circulating path is connected with a vertical composite flow artificial wetland, the other circulating path is connected with the artificial water quality intervention module, water in the landscape water body is pumped into the vertical composite flow artificial wetland or the artificial water quality intervention module through a water pump, and the water quality parameter monitoring module comprises a water quality index automatic monitor, a storage module and a water quality parameter transmission module. The water quality maintaining system can not only maintain the water quality of the landscape water body by purifying internal pollutants through the artificial wetland, but also automatically purify sudden external pollutants through the intelligent monitoring system, and can greatly improve the pertinence of the water quality problem treatment of the landscape water body.
Description
Technical Field
The invention relates to the field of water purification, in particular to a small landscape water body water quality maintaining system and method.
Background
The small landscape water body is an important component of urban landscape, and the quality of landscape and environmental effects directly influences the physical and psychological health of residents. At present, most of small landscape water bodies are closed, the water bodies flow slowly or are static, and the self-purification capacity of the water bodies is poor. With the continuous entering of foreign pollutants, if the foreign pollutants can not be removed in time, the eutrophication of the water body is inevitably caused, and finally the water quality of the waterscape deteriorates, the ornamental value of the landscape is gradually lost, and the living environment of surrounding residents is seriously influenced. Meanwhile, aiming at the landscape water bodies of fishes and aquatic plants, the fishes and the plants are main sources for generating a large amount of endogenous pollution, and the fish excrement and the rotten leaves of dead branches of the plants can accelerate the deterioration of the water quality of the landscape water bodies, so that the turbidity of the water bodies and the like are greatly increased.
In the prior art, artificial wetlands or artificial monitoring and control equipment are generally used as main parts for landscape water purification, the artificial wetlands cannot control sudden external pollution events of a landscape pool, and the artificial monitoring and control equipment is high in cost and not beneficial to large-scale popularization and application.
Disclosure of Invention
The invention aims to solve the problems and provides a small landscape water quality maintaining system and a small landscape water quality maintaining method, which can not only maintain the landscape water quality by purifying internal pollutants through an artificial wetland, but also automatically purify sudden foreign pollutants through an intelligent monitoring system, can greatly improve the pertinence of the landscape water quality problem treatment, can provide very effective guarantee for maintaining higher water quality of landscape water, and effectively reduce the manual management cost.
The invention is realized by the following technical scheme:
a small-sized landscape water body water quality maintaining system comprises a landscape water body and an intelligent monitoring system, wherein the intelligent monitoring system comprises a remote control end, a PLC central control module, an artificial water quality intervention module and a water quality parameter monitoring module arranged in the landscape water body, the landscape water body is connected with two circulating paths, one circulating path is connected with a vertical composite flow artificial wetland, the other circulating path is connected with the artificial water quality intervention module, water in the landscape water body is pumped into the vertical composite flow artificial wetland or the artificial water quality intervention module through a water pump, the water quality parameter monitoring module comprises a water quality index automatic monitor, a storage module and a water quality parameter transmission module, and the artificial water quality intervention module comprises a nitrogen removal module, a phosphorus removal module and an algae removal module; the intelligent monitoring system stores water quality real-time monitoring data into the storage module through the water quality parameter monitoring module and transmits the data to the remote control end and the PLC central control module through the water quality parameter transmission module, and the PLC central control module can automatically control the opening and closing of the water pump according to the on-line water quality monitoring parameters and pump the water into the vertical combined flow artificial wetland or the artificial water quality intervention module.
The water quality maintaining system can not only maintain the water quality of the landscape water body by purifying internal pollutants through the artificial wetland, but also automatically purify sudden external pollutants through the intelligent monitoring system, can greatly improve the pertinence of the treatment of the water quality problems of the landscape water body, can provide very effective guarantee for maintaining higher water quality of the landscape water body, and effectively reduces the manual management cost. The invention monitors the water quality parameters in the landscape water body in real time, and under the condition that no external sudden pollution is monitored, after pollutants are generated in the water body, the water body flows into the vertical composite flow artificial wetland for conventional purification of the water quality; when the fact that external pollutants enter the landscape water body is monitored, the PLC central control module opens the water pump to enable water to be pumped into the manual water quality intervention module, and controls the denitrification module, the dephosphorization module and the algae removal module to treat the landscape water body, so that a good treatment effect is achieved. The running time of each module is intelligently judged by the PLC central control module, and meanwhile, remote monitoring is carried out through the remote control end.
A return pipe is connected between the vertical composite flow artificial wetland and the artificial water quality intervention module, and the landscape water treated by the artificial water quality intervention module can flow into the vertical composite flow artificial wetland through the return pipe.
The filler matrix of the vertical composite flow artificial wetland adopts one or more of zeolite, ceramsite, gravel, limestone, coal cinder and medical stone.
The time interval for carrying out on-line monitoring on the water quality parameters of the landscape water body by the water quality parameter monitoring module is 1 h.
The denitrification module performs denitrification by adopting a slow-release carbon source method; the dephosphorization module carries out dephosphorization by a shallow sand filtration method added with an artificial dephosphorization agent; the algae removal module removes algae through ultrasonic waves.
The automatic water quality index monitor can monitor parameters of water temperature, dissolved oxygen, pH value, conductivity, salinity, turbidity, blue-green algae, ammonia nitrogen ions and residual chlorine.
The area of the vertical composite flow artificial wetland accounts for 10-15% of the area of the water purification surface, and the area of the artificial water quality intervention module is about 4-6m2The vertical composite flow constructed wetland is planted with aquatic plants, so that the aesthetic property of the constructed wetland can be achieved, the dissolved oxygen in the constructed wetland can be improved, and the degradation of organic matters is facilitated.
A water quality keeping method for a small landscape water body is characterized in that a landscape water body water quality keeping system is installed in a landscape water body, a water quality parameter monitoring module monitors parameters of water temperature, dissolved oxygen, pH value, conductivity, salinity, turbidity, blue-green algae, ammonia nitrogen ions and residual chlorine in the landscape water body on line in real time, and stores water quality real-time monitoring data into a storage module; real-time data are transmitted to a remote control end and a PLC central control module through a water quality parameter transmission module, the PLC central control module controls the opening and closing of water pumps on two circulating paths according to the judgment of on-line water quality monitoring data, and the water in the landscape water body is pumped into a vertical composite flow artificial wetland for daily purification or an artificial water quality intervention module for sudden pollution purification.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the small landscape water quality maintaining system and the method thereof can not only maintain the landscape water quality by purifying internal pollutants through the artificial wetland, but also automatically purify sudden foreign pollutants through the intelligent monitoring system, and can greatly improve the pertinence of the landscape water quality problem treatment;
2. according to the small landscape water quality maintaining system and method, the intelligent water quality intervention module occupies a small area, can be used as an ecological circulating filtration system to provide functional complementation, provides an extremely effective guarantee for maintaining high water quality of landscape water, and can effectively reduce the manual management cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of the system of the present invention.
Reference numbers and corresponding part names in the drawings:
the system comprises a vertical composite flow constructed wetland, a landscape water body, a 3 artificial water quality intervention module, a 4 storage module, a 5 water quality parameter transmission module, a 6 remote control end, a 7 PLC central control module, a 8 denitrification module, a 9 dephosphorization module, a 10 algae removal module and a 11 water quality parameter monitoring module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1, a small landscape water quality maintaining system comprises a landscape water body 2 and an intelligent monitoring system, wherein the intelligent monitoring system comprises a remote control end 6 and a PLC central control module 7, an artificial water quality intervention module 3 and a water quality parameter monitoring module 11 arranged in the landscape water body 2, the landscape water body 2 is connected with two circulating paths, one circulating path is connected with a vertical composite flow artificial wetland 1, the other circulating path is connected with the artificial water quality intervention module 3, water in the landscape water body 2 is pumped into the vertical composite flow artificial wetland 1 or the artificial water quality intervention module 3 through a water pump, the water quality parameter monitoring module 11 comprises a water quality index automatic monitor, a storage module 4 and a water quality parameter transmission module 5, and the artificial water quality intervention module 3 comprises a denitrification module 8, a dephosphorization module 9 and an algae removal module 10; the intelligent monitoring system stores water quality real-time monitoring data into the storage module 4 through the water quality parameter monitoring module 11 and transmits the data to the remote control end 6 and the PLC central control module 7 through the water quality parameter transmission module 5, the PLC central control module 7 can automatically control the opening and closing of the water pump according to the on-line water quality monitoring parameters, and the water pump is pumped into the vertical composite flow artificial wetland 1 or the artificial water quality intervention module 3.
The water quality maintaining system can not only maintain the water quality of the landscape water body by purifying internal pollutants through the artificial wetland, but also automatically purify sudden external pollutants through the intelligent monitoring system, can greatly improve the pertinence of the treatment of the water quality problems of the landscape water body, can provide very effective guarantee for maintaining higher water quality of the landscape water body, and effectively reduces the manual management cost. As an arrow shown in figure 1 indicates a water flow direction, the system monitors water quality parameters in the landscape water body in real time, and under the condition that external sudden pollution is not monitored, after pollutants are generated in the water body, the water body flows into the vertical composite flow artificial wetland for conventional purification of water quality and then returns to the landscape water body through a water pump; when the fact that external pollutants enter the landscape water body is monitored, the PLC central control module opens the water pump to enable water to be pumped into the manual water quality intervention module, controls the three modules of the denitrification module, the dephosphorization module and the algae removal module to treat the water body of the landscape pool, and then returns the water body of the landscape pool to achieve a good treatment effect.
Preferably, a return pipe is connected between the vertical composite flow artificial wetland and the artificial water quality intervention module, and the landscape water body treated by the artificial water quality intervention module can flow into the vertical composite flow artificial wetland through the return pipe.
Preferably, the filler matrix of the vertical composite flow artificial wetland adopts one or more of zeolite, ceramsite, gravel, limestone, coal cinder and medical stone.
Preferably, the time interval for carrying out online monitoring on the water quality parameters of the landscape water body through the water quality parameter monitoring module is 1 h.
Preferably, the denitrification module performs denitrification by adopting a slow-release carbon source method; the dephosphorization module carries out dephosphorization by a shallow sand filtration method added with an artificial dephosphorization agent; the algae removal module removes algae through ultrasonic waves.
Preferably, the water quality index automatic monitor can monitor parameters of water temperature, dissolved oxygen, pH value, conductivity, salinity, turbidity, blue-green algae, ammonia nitrogen ions and residual chlorine.
Preferably, the area of the vertical composite flow artificial wetland accounts for 10-15% of the area of a water purification surface, and the surface of the artificial water quality intervention moduleA product of about 4-6m2And aquatic plants are planted in the vertical composite flow constructed wetland.
A water quality keeping method for a small landscape water body is characterized in that a landscape water body water quality keeping system is installed in a landscape water body, a water quality parameter monitoring module monitors parameters of water temperature, dissolved oxygen, pH value, conductivity, salinity, turbidity, blue-green algae, ammonia nitrogen ions and residual chlorine in the landscape water body on line in real time, and stores water quality real-time monitoring data into a storage module; real-time data are transmitted to a remote control end and a PLC central control module through a water quality parameter transmission module, the PLC central control module controls the opening and closing of water pumps on two circulating paths according to the judgment of on-line water quality monitoring data, and the water in the landscape water body is pumped into a vertical composite flow artificial wetland for daily purification or an artificial water quality intervention module for sudden pollution purification.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a small-size landscape water body water quality maintenance system, including landscape water body (2), a serial communication port, still include intelligent monitoring system, intelligent monitoring system includes remote control end (6), PLC central control module (7), water quality of labor intervenes module (3) and sets up water quality parameter monitoring module (11) in landscape water body (2), landscape water body (2) even has two circulation paths, one of them circulation path links to each other with perpendicular complex flow constructed wetland (1), another circulation path links to each other with water quality of labor intervenes module (3), landscape water body (2) normal water is gone into perpendicular complex flow constructed wetland (1) or water quality of labor intervenes module (3) through the pump, water quality parameter monitoring module (11) are including water quality index automatic monitoring appearance, storage module (4) and water quality parameter transmission module (5), water quality of labor intervenes module (3) including denitrogenation module (8), A dephosphorization module (9) and an algae removal module (10); the intelligent monitoring system stores water quality real-time monitoring data into the storage module (4) through the water quality parameter monitoring module (11) and transmits the data to the remote control end (6) and the PLC central control module (7) through the water quality parameter transmission module (5), the PLC central control module (7) can automatically control the opening and closing of the water pump according to the on-line water quality monitoring parameters, and the water pump is pumped into the vertical composite flow artificial wetland (1) or the artificial water quality intervention module (3).
2. The small landscape water quality maintaining system according to claim 1, characterized in that a return pipe is connected between the vertical complex flow artificial wetland (1) and the artificial water quality intervention module (3), and the landscape water treated by the artificial water quality intervention module (3) can flow into the vertical complex flow artificial wetland (1) through the return pipe.
3. The small landscape water body water quality maintaining system according to claim 1, wherein the filler matrix of the vertical composite flow artificial wetland (1) adopts one or more of zeolite, ceramsite, gravel, limestone, cinder and medical stone.
4. The small landscape water body water quality maintaining system according to claim 1, wherein the time interval for on-line monitoring of the landscape water body water quality parameters through the water quality parameter monitoring module (11) is 1 h.
5. The small landscape water body water quality maintaining system according to claim 1, wherein the denitrification module (8) performs denitrification by adopting a slow-release carbon source method; the phosphorus removal module (9) removes phosphorus by a shallow sand filtration method added with an artificial phosphorus removal agent; the algae removal module (10) removes algae through ultrasonic waves.
6. The system of claim 1, wherein the water quality index automatic monitor is capable of monitoring parameters of water temperature, dissolved oxygen, pH value, conductivity, salinity, turbidity, blue-green algae, ammonia nitrogen ions and residual chlorine.
7. The small landscape water body water quality maintaining system according to claim 1, wherein the area of the vertical combined flow artificial wetland (1) accounts for 10-15% of the area of a clean water surface, and the area of the artificial water quality intervention module (3) is about 4-6m2And aquatic plants are planted in the vertical composite flow constructed wetland (1).
8. A small-sized landscape water quality maintaining method is characterized in that the landscape water quality maintaining system as claimed in any one of claims 1 to 8 is installed in a landscape water body, a water quality parameter monitoring module monitors parameters of water temperature, dissolved oxygen, pH value, conductivity, salinity, turbidity, blue-green algae, ammonia nitrogen ions and residual chlorine in the landscape water body on line in real time, and stores water quality real-time monitoring data into a storage module (4); real-time data are transmitted to a remote control end (6) and a PLC central control module (7) through a water quality parameter transmission module (5), the PLC central control module (7) controls the opening and closing of water pumps on two circulating paths according to the judgment of on-line water quality monitoring data, and the water in the landscape water body is pumped into a vertical composite flow artificial wetland (1) to be purified daily or an artificial water quality intervention module (3) to be purified suddenly.
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| CN202010994521.9A CN112125406A (en) | 2020-09-21 | 2020-09-21 | Small landscape water body water quality maintaining system and method |
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| CN202010994521.9A CN112125406A (en) | 2020-09-21 | 2020-09-21 | Small landscape water body water quality maintaining system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772823A (en) * | 2021-09-16 | 2021-12-10 | 深圳市广汇源环境水务有限公司 | Water raising type oxygen charging ecological landscape restoration system |
| CN113860505A (en) * | 2021-09-15 | 2021-12-31 | 深圳市广汇源环境水务有限公司 | Water environment ecological improvement restoration system |
| CN113900407A (en) * | 2021-09-16 | 2022-01-07 | 深圳市广汇源环境水务有限公司 | Water environment treatment system |
| CN114590958A (en) * | 2022-02-24 | 2022-06-07 | 中国恩菲工程技术有限公司 | System and method for self-maintaining water quality of landscape water body |
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| CN1333190A (en) * | 2000-07-11 | 2002-01-30 | 中国科学院水生生物研究所 | Sewage treatment method and equipment thereof |
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| CN106396118A (en) * | 2016-11-14 | 2017-02-15 | 中国市政工程华北设计研究总院有限公司 | Low-pollution closed landscape water body circulating purification system |
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2020
- 2020-09-21 CN CN202010994521.9A patent/CN112125406A/en active Pending
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| CN1333190A (en) * | 2000-07-11 | 2002-01-30 | 中国科学院水生生物研究所 | Sewage treatment method and equipment thereof |
| CN101445300A (en) * | 2008-12-19 | 2009-06-03 | 同济大学 | Eutrophic water low-energy consumption mobility bed-constructed wetland combined treatment method |
| KR20170095532A (en) * | 2016-02-15 | 2017-08-23 | 한국농어촌공사 | A water-loop operating system for allocationing and supplying multy-water source using SD |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113860505A (en) * | 2021-09-15 | 2021-12-31 | 深圳市广汇源环境水务有限公司 | Water environment ecological improvement restoration system |
| CN113772823A (en) * | 2021-09-16 | 2021-12-10 | 深圳市广汇源环境水务有限公司 | Water raising type oxygen charging ecological landscape restoration system |
| CN113900407A (en) * | 2021-09-16 | 2022-01-07 | 深圳市广汇源环境水务有限公司 | Water environment treatment system |
| CN114590958A (en) * | 2022-02-24 | 2022-06-07 | 中国恩菲工程技术有限公司 | System and method for self-maintaining water quality of landscape water body |
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Application publication date: 20201225 |
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