CN115448540A - In-situ ecological restoration device for improving water quality of deep water lakes and reservoirs - Google Patents
In-situ ecological restoration device for improving water quality of deep water lakes and reservoirs 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
- 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
-
- 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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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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
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses an in-situ ecological restoration device for improving water quality of deep-water lakes and reservoirs, which belongs to the technical field of environmental protection and comprises a floating submerged plant platform, an ultrasonic algae inhibiting instrument and a high polymer sustained-release particle loader. The technology is suitable for the water body with ecological damage caused by excessive algae proliferation, especially the water body with larger requirements on ecological restoration and water quality improvement of the deep water lake reservoir, breaks through the technical problem that the submerged plant restoration is difficult to implement in the current deep water lake reservoir, and has important social and economic benefits and application values.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to an in-situ ecological restoration device for eutrophication development of deep-water lakes and reservoirs, which is suitable for the ecological restoration fields of algae control, water quality improvement, submerged plant restoration and the like of deep-water lakes and reservoirs.
Background
Water is the source of life, and a good water environment is an important foundation for the construction of sustainable development according to a living city. A series of water environment quality improvement works such as black and odorous water body treatment, sponge city construction and the like are successively implemented in China from 2015, and the water environment of China is greatly improved. However, after the remediation of the black and odorous water is finished, the transparency of the water is greatly improved, and under the condition that the nutrient salt is generally higher, the algae obtain good growth conditions, so that the proportion of eutrophic water in China is still high, and the eutrophic water is intensively expressed as cyanobacterial bloom. After the algae grows, COD in the water body is continuously increased, and dissolved oxygen in the water body is continuously reduced, so that a large amount of aquatic animals such as submerged plants, fishes, shrimps and shellfishes are killed, and the damage to an ecological system of the water body is further aggravated. But the situation is more serious in the water body without a sound ecosystem. However, the eutrophication problem of algae lacks a rapid, systematic, low-energy-consumption, environmentally-friendly treatment technique, which limits the recovery of ecosystems such as submerged plants.
Improvement of water quality and recovery of algae and submerged plants are always research hotspots in the aspect of water environment, physical, chemical and biological methods also obtain certain breakthrough progress, but the physical method is too high in energy consumption, the chemical method is easy to cause secondary pollution, and the biological method mainly recovers the submerged plants, but does not have the submerged plant recovery condition in deep water lakes and reservoirs, so that paradox is achieved. In 2020, ecological environment protection provides that 'beautiful rivers and lakes are in memory of common people, but not in an expert index system', necessary environment-friendly measures need to be taken to realize the good ecological environment of 'rivers with water, water with grass, grass with fish' of the water environment of China, the current industrial technical problems of overproof nutritive salt, excessive algae proliferation and incapability of recovering submerged plants are faced by deep-water lakes and reservoirs, and the exploration and development of water quality improvement, algae control and submerged plant recovery suitable for the deep-water lakes and reservoirs have important strategic significance on water quality guarantee of drinking water sources in western China and ultra-large cities.
Disclosure of Invention
Aiming at the technical bottlenecks and actual requirements, the invention provides an original ecological restoration device integrating three core action centers of a floating submerged plant platform, an ultrasonic algae inhibiting instrument and a high polymer sustained-release particle loader, which shows rapid nitrogen and phosphorus removal, algae control and submerged plant restoration of deep-water lakes and reservoirs and provides a new technology and a new process for treatment of the deep-water lakes and reservoirs.
The invention provides the following technical scheme, which comprises the following steps:
an in-situ ecological restoration device for improving water quality of deep-water lakes and reservoirs, which comprises a floating submerged plant platform, an ultrasonic algae inhibiting instrument and a high polymer slow-release particle loader, and is characterized in that: the control of algae is realized by destroying the growth environment of algae through the vibration of the ultrasonic algae inhibiting instrument, and simultaneously, the polymer organic carbon is released by the polymer sustained-release particle loader to activate the nitrogen and phosphorus removal in the water body and the bacteria around the algae to realize the improvement of water quality, and the algae is further controlled.
Preferably, the in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs adopts an integrated technology of an ultrasonic algae suppressor, a high polymer sustained-release particle loader and a floating submerged plant platform, improves the transparency of a water body by utilizing the functions of algae control and water quality improvement, and provides a habitat condition for the submerged plant recovery of the floating submerged plant platform.
Preferably, the in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs has the advantages that the frequency range of the ultrasonic algae inhibiting instrument is 28 KHz-80 KHz, the frequency and the action time are set according to the biomass of algae in the water body, when chlorophyll is more than 50 mug/L, the ultrasonic algae inhibiting instrument runs at 80KHz for 8h/d, and the algae can be controlled within 48 hours; when the chlorophyll is 30-50 mu g/L, the ultrasonic algae inhibiting instrument is operated at 42-60 KHz and 8h/d, and the algae can be controlled within 48 hours; when the chlorophyll is 10-30 mug/L, the ultrasonic algae inhibiting instrument operates at 28-42 KHz for 8h/d, and the algae can be controlled within 48 hours.
Preferably, the high polymer sustained-release particle loader slowly releases high polymer organic carbon in a water body, the sustained-release period is 180 days, COD (chemical oxygen demand) of a target water body in the sustained-release process reaches 80mg/L, natural degradation is completed within 7 days, no pollution is caused to the water body, the sustained-release organic carbon is a microbial metabolite, is non-toxic and harmless, and can specifically activate nitrogen and phosphorus removal microorganisms of the water body, and the reduction of nitrogen and phosphorus reaches 85-92% within 24 hours.
Preferably, the floating type submerged plant platform has the loading capacity and the floating capacity from the water surface to the water bottom, can submerge from 0m on the water surface to 3.5m underwater, can recover a submerged plant community with a developed root system, realizes the enrichment effect on microorganisms, protozoa and metazoan by hanging the nanofiber membrane, further recovers the ecological environment around the platform, and assists in improving water quality and controlling algae.
Preferably, according to the in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs, further, the in-situ ecological restoration device is provided with ejectors arranged in four directions at the position of 1.0m underwater, the ejection range is 15-20 m, and the expansion and extension of the action range of the device are realized by means of the ejection.
Preferably, according to the in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs, the in-situ ecological restoration device is powered by solar energy, is low-carbon, environment-friendly and free of energy consumption, is provided with a large-capacity lithium battery pack, and meets the equipment power supply requirement in the continuous 3-day rainy weather.
Preferably, the in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs is further provided, and the in-situ ecological restoration device can realize the control effects of total nitrogen being less than or equal to 0.5mg/L, total phosphorus being less than or equal to 0.025mg/L and chlorophyll a being less than or equal to 3mg/L and keep the control effects for a long time.
Preferably, the in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs can realize remote control and automatic control.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention discloses a non-toxic, pollution-free, low-carbon and efficient deep-water lake and reservoir ecological restoration device, which can efficiently and quickly realize algae control and water quality improvement so as to restore submerged plants, provides a solution for the current difficult effective treatment measures of deep-water lakes and reservoirs, and makes a prominent contribution to the industry development.
2. The cost of the technology related by the invention is 68% lower than that of the existing physical technology and 35% lower than that of the chemical technology, and the invention has good economic benefit.
3. The method is not only suitable for algae control and submerged plant restoration in deep water lakes and reservoirs, but also is especially suitable for algae control and water quality improvement of water intakes of drinking water source areas of ultra-large cities in China, and has important strategic significance.
Drawings
Fig. 1 is a schematic layout view of an in-situ ecological restoration device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the following embodiments, referring to fig. 1, an original ecological restoration device integrating three core action centers of a floating submerged plant platform, an ultrasonic algae inhibiting instrument and a high polymer sustained-release particle loader displays rapid nitrogen and phosphorus removal, algae control and submerged plant recovery of deep water lakes and reservoirs, provides a new technology and a new process for treatment of the deep water lakes and reservoirs, and has the following specific implementation steps:
(1) The technical process firstly identifies the biomass and the species of the algae in the target water body before the treatment, and when the microcystis of the water body is more than 35 percent, the water body is suitable for the technology.
(2) Further monitoring the chlorophyll a content in the water body, determining the frequency range of the ultrasonic algae inhibiting instrument according to the chlorophyll a content, setting the frequency and the action time according to the biomass of algae in the water body, and when the chlorophyll is more than 50 mug/L, operating the ultrasonic algae inhibiting instrument at 80KHz and 8h/d for 48 hours to realize the control of the algae; when the chlorophyll is 30-50 mu g/L, the ultrasonic algae inhibiting instrument is operated at 42-60 KHz and 8h/d, and the algae can be controlled within 48 hours; when the chlorophyll is 10-30 mu g/L, the ultrasonic algae inhibiting instrument is operated at 28-42 KHz and 8h/d, and the algae can be controlled within 48 hours; finally, the frequency range of the ultrasonic wave algae inhibiting instrument can be determined to be 28 KHz-80 KHz.
(3) After the project is developed, firstly operating the ultrasonic algae inhibiting instrument and the high polymer sustained-release particle loader for a week, detecting the chlorophyll a content and the microbial abundance in the water body after a week, and when the chlorophyll a is reduced by 25% and the transparency is improved by 20cm, beginning to cultivate the submerged plant on the floating submerged plant platform.
(4) The floating submerged plant platform is set to an initial draft of about 25cm and then lowered 15cm per week to the set target water area.
(5) And when the transparency of the water area in the center of the device reaches 1.0m and the leaves of the submerged plants are clearly visible, starting the 4-direction jet device to realize the water body restoration of the radiation area.
(6) Under the general condition, the radiation effect of the device in a static water body reaches 5-8 mu, and after the water body stays for 25-30 days, the integral device is dragged to the adjacent water body to carry out ecological restoration work.
(7) The working conditions are described as 6-9 months, the water temperature is higher than 25 ℃, the algae growth in the rest months is less, and the ultrasonic algae inhibiting instrument can be closed.
When the total nitrogen of the target water body is reduced to 1.5mg/L and the total phosphorus is reduced to 0.2mg/L, the high polymer slow-release particle loader can be closed.
In addition, the in-situ ecological restoration device for improving the water quality of the deep-water lake reservoir, which is described in the steps, can be provided with ejectors in four directions at the position of 1.0m underwater of the in-situ ecological restoration device, the range of the jet flow is 15 m-20 m, and the expansion and extension of the action range of the device are realized by means of the jet flow.
In addition, the in-situ ecological restoration device for improving the water quality of the deep-water lake reservoir comprises a solar panel arranged on a top plate (an upper cover plate) of the device, a large-capacity storage battery is input after the solar panel generates electricity, and the storage battery is connected to each electricity utilization unit of the device through an electric wire. The device can rely on solar energy power supply promptly, and low carbon environmental protection does not have energy resource consumption to dispose large capacity lithium cell group, the equipment power supply demand of the continuous 3 days overcast and rainy weather of guarantee.
In addition, the in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs in the steps can achieve the control effects of total nitrogen being less than or equal to 0.5mg/L, total phosphorus being less than or equal to 0.025mg/L and chlorophyll a being less than or equal to 3mg/L, and can keep the control effects for a long time.
In addition, the in-situ ecological restoration device for improving the water quality of the deep-water lake reservoir comprises the integrated circuit board arranged in the control room of the device, the circuit board comprises the GPS signal transmission device, the circuit board can be connected with the mobile phone app, and the circuit board can control the opening and closing of equipment. The purpose of remote control is to enable the equipment to be separated from field manual management, maintenance cost is reduced, meanwhile, the running state of the equipment can be checked through the app, the equipment is started and stopped at any time, and daily running time of the equipment can be adjusted at any time. Thus realizing remote control and automatic control.
The integrated circuit board containing the GPS signal transmission device is a GPS navigation board product in the prior art.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (9)
1. An in-situ ecological restoration device for improving water quality of deep-water lakes and reservoirs comprises a floating submerged plant platform, an ultrasonic algae inhibiting instrument and a high polymer sustained-release particle loader, and is characterized in that: the control of algae is realized by destroying the growth environment of algae through the vibration of the ultrasonic algae inhibiting instrument, and simultaneously, the polymer organic carbon is released by the polymer sustained-release particle loader to activate the nitrogen and phosphorus removal in the water body and the bacteria around the algae to realize the improvement of water quality, and the algae is further controlled.
2. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to claim 1, which is characterized in that: the method adopts an integrated technology of an ultrasonic algae inhibitor, a high polymer slow-release particle loader and a floating type submerged plant platform, improves the transparency of a water body by utilizing the functions of algae control and water quality improvement, and provides a habitat condition for the submerged plant recovery of the floating type submerged plant platform.
3. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to claim 2, which is characterized in that: the frequency range of the ultrasonic algae inhibiting instrument is 28 KHz-80 KHz, the frequency and the action time are set according to the biomass of algae in the water body, when chlorophyll is more than 50 mug/L, the ultrasonic algae inhibiting instrument runs at 80KHz and 8h/d, and the algae can be controlled within 48 hours; when the chlorophyll is 30-50 mug/L, the ultrasonic algae inhibiting instrument operates at 42-60 KHz for 8h/d, and the algae can be controlled within 48 hours; when the chlorophyll is 10-30 mug/L, the ultrasonic algae inhibiting instrument operates at 28-42 KHz for 8h/d, and the algae can be controlled within 48 hours.
4. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to claim 2, which is characterized in that: the high polymer sustained-release particle loader slowly releases high polymer organic carbon in a water body, the sustained-release period is 180 days, COD (chemical oxygen demand) of a target water body in the sustained-release process reaches 80mg/L, the target water body is naturally degraded within 7 days without polluting the water body, the sustained-release organic carbon is a microbial metabolite, is non-toxic and harmless, specifically activates nitrogen and phosphorus removal microorganisms of the water body, and the reduction of nitrogen and phosphorus reaches 85-92% within 24 hours.
5. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to claim 2, which is characterized in that: the floating type submerged plant platform has the loading and floating capacity from the water surface to the water bottom, can submerge to 3.5m underwater from 0m on the water surface, can recover submerged plant communities with developed root systems, can realize the enrichment effect on microorganisms, protozoa and metazoans by hanging the nanofiber membrane, further recovers the ecological environment around the platform, and assists water quality improvement and algae control effects.
6. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to any one of claims 1 to 5, which is characterized in that: the jet devices are arranged in four directions at the position of 1.0m underwater of the in-situ ecological restoration device, the jet range is 15 m-20 m, and the expansion and extension of the action range of the device are realized by means of jet.
7. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to any one of claims 1 to 5, which is characterized in that: the in-situ ecological restoration device is powered by solar energy, is low-carbon, environment-friendly and free of energy consumption, is provided with a large-capacity lithium battery pack, and meets the power supply requirement of equipment in continuous 3-day rainy days.
8. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to any one of claims 1 to 5, which is characterized in that: the in-situ ecological restoration device can realize the control effects that the total nitrogen is less than or equal to 0.5mg/L, the total phosphorus is less than or equal to 0.025mg/L and the chlorophyll a is less than or equal to 3mg/L, and the control effects are kept lasting.
9. The in-situ ecological restoration device for improving the water quality of the deep-water lakes and reservoirs according to any one of claims 1 to 5, which is characterized in that: the in-situ ecological restoration device can realize remote control and automatic control.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402472A (en) * | 2008-11-17 | 2009-04-08 | 陈伟东 | Aquatic ecology renovation machine |
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Application publication date: 20221209 |