AU2020103166A4 - Microcosmic experimental device for simulating pond ecosystem - Google Patents
Microcosmic experimental device for simulating pond ecosystem Download PDFInfo
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- AU2020103166A4 AU2020103166A4 AU2020103166A AU2020103166A AU2020103166A4 AU 2020103166 A4 AU2020103166 A4 AU 2020103166A4 AU 2020103166 A AU2020103166 A AU 2020103166A AU 2020103166 A AU2020103166 A AU 2020103166A AU 2020103166 A4 AU2020103166 A4 AU 2020103166A4
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Abstract
The present invention relates to a microcosmic experimental device for
simulating a pond ecosystem. The microcosmic experimental device is provided
with a weather simulation system, a periodic monitoring system, a reagent storage
and transmission system, a control system, a temperature control system and a
sewage treatment tank, can relatively truly simulate and restore the weather of
ponds in the natural environment by simulating the weather such as wind, rain,
thunder and lightning in the natural environment, can achieve real-time monitoring,
and enables experimental experts to choose different types and contents of
chemicals according to the own experimental subjects to carry out comprehensive
research on the influences of chemical substances on a simulated water ecological
environment from multiple angles. The control system enables the experimental
experts to better explore the influences of the chemical substances on the
ecological environment of waters by controlling reagent variables, so that the
control is more apparent. The temperature control system can be adopted to control
the temperature of each small simulated pond ecosystem, so that the microcosmic
environment is easier to be controlled. The sewage treatment tank can be adopted
to reduce the influences of experiments on the environment and achieve
environmental protection and no pollution.
Drawings of Description
311 23
23i 2
3232 233 1 3
4
311 312
31
Fig. 1
1
Description
Drawings of Description
311 23 23i 2 3232 233 1 3
4 311 312 31 Fig. 1
Description
Technical Field
The present invention relates to the technical field of ecotoxicology, in particular to a microcosmic experimental device for simulating a pond ecosystem.
Background
All chemical substances may eventually enter a water environment in different ways, and have a certain influence on a water ecosystem. With the increasing water pollution in recent years, what kind of influence the chemical substances will have on the water ecosystem has become one of the focuses of environmental scientists all over the world. Since the direct study of natural ecosystem effects is complicated, uneasy to be controlled, costly and difficult, ecologists have designed various model ecosystems to explore the influences of the chemical substances on the water environment. Microcosm refers to an experimental device for simulating a natural ecosystem. In recent years, the microcosmic technology has been widely used in ecological systems, wherein the pond microcosmic community has a simple structure and easily controlled conditions, thereby being widely applied. In conclusion, a microcosmic device capable of fully simulating and restoring ponds in the natural ecological environment is urgently needed, so as to effectively explore the micro-ecological effects under multiple conditions.
Summary
In view of the above problems, the present invention provides a microcosmic experimental device for simulating a pond ecosystem. The device can truly
Description
simulate the pond ecosystem and monitor the pond ecosystem in real time, so that experimental experts can explore influences of different factors on the ecosystem according to the own experimental requirements. Embodiments of the present invention provide a microcosmic experimental device for simulating a pond ecosystem. The device comprises three layers of structures from top to bottom. An upper layer structure is provided with at least one cross bar and a tank body. The tank body is located below the cross bar and is slidably connected with the cross bar through a sliding structure. A weather simulation system, a periodic monitoring system and a reagent storage and transmission system are arranged on the tank body. A middle layer structure is provided with a tray. A control system and a temperature control system are arranged on the tray; and a through hole is formed in the tray. The control system comprises at least two simulated ponds. Water inlet and outlet pipelines are arranged on side surfaces of the simulated ponds; and the water inlet and outlet pipelines are connected with control switches. The temperature control system comprises a temperature sensor and a temperature regulator. The temperature sensor is located inside or outside each simulated pond or on the other side of the tray corresponding to the bottom of each simulated pond; and the temperature regulator is located on the tray. A lower layer structure is provided with a sewage treatment tank which is connected with the through hole through a pipeline. Further, the weather simulation system comprises a thunder simulator, a wind simulator and an illumination lamp for providing illumination for the simulated ponds. The thunder simulator is formed by connecting a diode, a voice coil and a battery, wherein the voice coil is located at the bottom of the tank body and opposite to the middle layer structure.
Description
The wind simulator is formed by connecting a fan with a battery, wherein the fan is located at the bottom of the tank body and opposite to the middle layer structure. Further, the periodic monitoring system is a networked monitoring camera capable of monitoring all the simulated ponds. Further, the reagent storage and transmission system comprises reagent bottles, peristaltic pumps and transmission pipelines, which are arranged on the tank body and have the same number as the simulated ponds. One end of each peristaltic pump is connected with each reagent bottle, and the other end is connected with one end of each transmission pipeline. The other end of each transmission pipeline is located above the corresponding simulated pond by sliding the tank body on the cross bar. Further, bugles for placing a filter mesh is arranged on an inner wall of each simulated pond. Further, the sliding structure comprises a pulley arranged on the tank body and a sliding chute formed in the cross bar. Further, the tank body has a length of 90 cm, a width of 85 cm and a height of cm; and the tank body has an open upper surface and at least one open side surface. Further, the tank body is made of PVC materials. Further, the simulated ponds have a diameter of 20 cm and a height of 30 cm, is cylindrical, and has an open top and a hollow interior. Further, the simulated ponds are made of PVC materials. The technical solution provided by the embodiments of the present invention at least has the beneficial effects that: The microcosmic experimental device for simulating a pond ecosystem provided by the embodiments of the present invention is provided with the weather simulation system, the periodic monitoring system, the reagent storage and transmission system, the control system, the temperature control system and the sewage treatment tank, can truly simulate the pond ecosystem, achieve real-time
Description
monitoring, enables the experimental experts to explore the influences of different factors, such as the types and contents of reagents and the types and quantities of organisms, on the ecosystem according to the own experimental requirements, and can be adopted to treat the sewage to achieve environmental protection and no pollution. Other features and advantages of the present invention will be illustrated in the following description, and will be partially apparent from the description, or may be understood by the implementation of the present invention. The objects and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims and accompanying drawings. The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.
Description of Drawings
The accompanying drawings are used for providing a further understanding of the present invention, forming a part of the description, and illustrating the present invention together with the embodiments of the present invention, rather than limiting the present invention. In the accompanying drawings: Fig. 1 is a structural diagram of a microcosmic experimental device for simulating a pond ecosystem provided by the present invention; and Fig. 2 is a structural diagram of another microcosmic experimental device for simulating a pond ecosystem provided by the present invention. In the figures: 1. cross bar; 2. tank body; 21. weather simulation system; 211. thunder simulator; 212. wind simulator; 213. illumination lamp; 22. periodic monitoring system; 23. reagent storage and transmission system; 231. reagent bottle; 232. peristaltic pump; 233. transmission pipeline; 3. tray; 31. control system; 32. through hole; 311. simulated pond; 312. control switch; and 4. sewage treatment tank.
Description
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments illustrated herein. On the contrary, the embodiments are provided for more thoroughly understanding the present disclosure and fully conveying the scope of the present disclosure to those skilled in the art. The embodiments of the present invention provide a microcosmic experimental device for simulating a pond ecosystem, which will be described with reference to the accompanying drawings. Referring to Figs. 1-2, a supporting frame is used for fixing the whole device, and the device comprises three layers of structures from top to bottom. An upper layer structure is provided with at least one cross bar 1 and a tank body 2; and the tank body 2 is located below the cross bar 1 and is slidably connected with the cross bar 1 through a sliding structure, so that the tank body 2 can move axially along the cross bar 1. The tank body 2 is provided with a weather simulation system 21, a periodic monitoring system 22 and a reagent storage and transmission system 23. A middle layer structure is provided with a tray 3; a control system 31 and a temperature control system are arranged on the tray 3; and a through hole 32 is formed in the tray 3. The control system 31 comprises at least two simulated ponds 311; water inlet and outlet pipelines are arranged on side surfaces of the simulated ponds 311; and the water inlet and outlet pipelines are connected with control switches 312.
Description
The temperature control system comprises a temperature sensor and a temperature regulator; the temperature sensor is located inside or outside each simulated pond 311 or on the other side of the tray 3 corresponding to the bottom of each simulated pond 311; and the temperature regulator is located on the tray 3. A lower layer structure is provided with a sewage treatment tank 4 which is connected with the through hole 32 through a pipeline. For example, the overflowed water due to excessive water added into the simulated ponds or the water directly drained from a drain port at the bottoms of the simulated ponds during the experiment flows into the tray 3, and then flows into the sewage treatment tank 4 through the through hole 32 in the tray 3, for treatment before sewage discharge. The microcosmic experimental device for simulating the pond ecosystem provided by the embodiments of the present invention is mainly adopted to simulate a natural ecological pond, build an ecological platform, perform long-term simulation tracking experiments on different aquatic organisms, and explore micro-ecological effects under multiple conditions. The device mainly comprises the weather simulation system, the periodic monitoring system, the reagent storage and transmission system, the control system, the temperature control system and the sewage treatment tank, wherein the weather simulation system can relatively truly simulate and restore the weather of ponds in the natural environment by simulating the weather such as wind, rain, thunder and lightning in the natural environment; the periodic monitoring system can achieve real-time monitoring; the reagent storage and transmission system enables the experimental experts to choose different types and contents of chemicals according to the own experimental subjects to carry out comprehensive research on the influences of chemical substances on a simulated water ecological environment from multiple angles; the control system enables the experimental experts to better explore the influences of the chemical substances on the ecological environment of
Description
waters by controlling reagent variables, so that the control is more apparent; the temperature control system can be adopted to control the temperature of each small simulated pond ecosystem, so that the microcosmic environment is easier to be controlled; and the sewage treatment tank can be adopted to reduce the influences of experiments on the environment and achieve environmental protection and no pollution. Further, the simulated ponds can also be changed to adopt a circulating flow mode according to the needs of specific experiments. For example, a circulating water tank is added to the device, and a circulating water pump is arranged inside to continuously add water into the simulated ponds; meanwhile, an overflow port is formed in one side of each simulated pond, and the overflow port is connected with the circulating water tank; and a filter device is added to the circulating water tank to filter impurities in the water, such as sludge and biological feces. Further, the weather simulation system 21 comprises a thunder simulator 211, a wind simulator 212 and an illumination lamp 213 for providing illumination for the simulated ponds 311. The thunder simulator 211 is formed by connecting a diode, a voice coil and a battery; and the voice coil is located at the bottom of the tank body 2, opposite to the simulated pond 311 of the middle layer structure, and used for simulating a lightning phenomenon over the simulated pond 311. The wind simulator 212 is formed by connecting a fan with a battery and used for simulating a wind speed over the pond. The fan is located at the bottom of the tank body 2 and opposite to the simulated pond 311 of the middle layer structure. The battery can be located at the bottom of the tank body 2 or in the tank body 2. The illumination lamp 213 can simulate a day and night alternation phenomenon. Further, to conveniently record experimental processes and changes in a period, the periodic monitoring system 22 is also arranged at the bottom of the tank
Description
body; and the periodic monitoring system 22 is a networked monitoring camera capable of monitoring all the simulated ponds. Further, the reagent storage and transmission system 23 comprises reagent bottles 231, peristaltic pumps 232 and transmission pipelines 233, which are arranged on the tank body 2 and have the same number as the simulated ponds 311. One end of each peristaltic pump 232 is connected with each reagent bottle 231, and the other end is connected with one end of each transmission pipeline 233. The other end of each transmission pipeline 233 is located above the corresponding simulated pond 311 by sliding the tank body 2 on the cross bar 1, to facilitate the addition of reagents used in the experiments. Further, bugles for placing a filter mesh is arranged on an inner wall of each simulated pond 311. For example, a plurality of bulge parts are arranged on the same horizontal plane of the inner wall of the simulated pond 311 for supporting the filter mesh; and the height of the filter mesh can be adjusted according to different heights of the bulge parts. For example, isolated swimming organisms (such as fish) are used for the extinct predation of planktonic microorganisms (such as daphnia) at different stages of a microcosm system. In addition, the swimming organisms and the planktonic microorganisms can be conveniently classified and counted in a test counting period. Further, the sliding structure comprises a pulley arranged on the tank body 2 and a sliding chute arranged on the cross bar 1; and the tank body can axially move along the cross bar through the sliding structure, so that the transmission pipeline 233 can be conveniently moved above the corresponding simulated pond 311 for adding the reagents.
Description
Specific embodiments: the device provided by the present invention, for example, has an overall size of 240 cmx85 cmx200 cm, and as shown in Fig. 1, is mainly structurally divided into an upper layer, a middle layer and a lower layer. 1: The upper layer is provided with four stainless steel tanks with a length of 240 cm; and the lower layer is provided with a cuboid tank, which has a length of 90 cm, a width of 85 cm and a height of 40 cm, has an open upper side and an open long side, is made of PVC materials and is connected with the four stainless steel tanks through pulleys, thereby facilitating movement and operation. The cuboid tank contains three systems as follows. ( Weather simulation system The weather simulation system comprises a thunder simulator, a wind simulator and an illumination lamp for simulating normal weather such as wind, rain, lightning, thunder, day and night, wherein the thunder simulator is formed by connecting four diodes and a voice coil with AA batteries; the wind simulator is formed by connecting small fans with a radius of 3 cm on both sides of the bottom with AA batteries; the illumination lamp is formed by connecting two diodes with a length of 40 cm with AA batteries; the batteries can be placed in the middle of the two diodes; and four AA batteries can be placed in total. The device breaks through the problem that the model is inconsistent with the natural ecosystem environment, and reduces the influences on the experimental results due to the inconsistency of the ecological environment. @ Periodic monitoring system The periodic monitoring system is a monitoring camera. For example, the monitoring camera has a monitoring pixel of 5 million, has a three-proofing function, can clearly show the conditions of the ecosystem located in the middle layer, can be networked, and enables the conditions of a microcosm to be observed
Description
anytime and anywhere. The equipment has high image memory capable of retaining images for a long time. @ Reagent storage and transmission system As shown in Fig. 1, the reagent storage and transmission system is provided with three reagent bottles with a diameter of 15 cm and a height of 20 cm for storing reagents, and is further provided with three peristaltic pumps and three transmission pipelines, wherein the peristaltic pumps are controllable in transmission rate and transmission time and are used for quantitatively transmitting the reagents to the ecosystem of the simulated pond in the middle layer, thereby making the experiments more convenient and accurate and reducing errors caused by human factors. 2: The middle layer has two systems as follows. ( Control system The middle layer structure is provided with a cuboid tray with a size of 240 cmx85 cmx40 cm. Six PVC cylinders with a diameter of 20 cm and a height of 30 cm and a water conveyance pipeline controllable in water conveyance rate are placed in the tray; a pond ecosystem in nature is simulated in each cylinder; different organisms and reagents can be added into each cylinder to explore the influences of different factors on the ecosystem; the water conveyance pipeline is responsible for quantitatively conveying water into each cylinder; a round hole is further formed in one side of the bottom of the tray and is connected with the sewage treatment tank in the lower layer structure for sewage treatment. For example, sediments can be added into the above-mentioned simulated ponds, to observe the sediments in the simulated ponds, research the influences of sediments on the migration of pollutants, and research the influences of the water pollutants on the toxicity of benthos.
Description
In addition, a filter mesh system adjustable in height can be added into the simulated pond, so that isolated swimming organisms (such as fish) can be used for the extinct predation of planktonic microorganisms (such as daphnia) at different stages of a microcosm system. The swimming organisms and the planktonic microorganisms can also be conveniently classified and counted in a test counting period. @ Temperature control system The temperature control system is arranged under the tray, and is composed of a temperature sensor and a temperature regulator. The temperature sensor is responsible for detecting the water temperature and transmitting a signal to the temperature regulator; and the temperature regulator is responsible for regulating the water temperature. 3: The lower layer is provided with a sewage treatment tank. For example, a sewage treatment tank with a size of 100 cmx85 cmx40 cm is connected with the ecosystem of the middle layer, and is used for treating the water drained from the microcosm experiment so that the drained water meets the discharge standard, thereby reducing the influences of the experiments on the environment and achieving environmental protection and no pollution. The test processes of the microcosmic experimental device for simulating the pond ecosystem provided by the present invention will be described below through a specific embodiment: The simulation of potential influences of triclosan on the pond water ecosystem is taken as an example. Three concentration groups are set for the simulated ponds; each group comprises three simulated ponds; the first group is a blank control group, the second group is a concentration A group, and the third group is a concentration B group.
Description
Firstly, the same amount of test water is placed into 9 simulated ponds of the simulated water ecosystem and the same simulated natural conditions are set. Then, fishes (such as Oryzias latipes sinensis), algae (such as Scenedesmus obliquus) and daphnia (such as Daphnia magna) are placed; a triclosan reserve solution is added when the simulated pond ecosystem reaches a steady state, making the concentration of triclosan in the simulated water environment reach 0 mg/L (i.e., the first group or the control group), 0.01 mg/L (the second group) and 0.5 mg/L (the third group); after exposing for a certain time (such as 30-365 days), the population conditions of the fishes, algae and daphnia are monitored, such as the number of adults, the number of larvae and population structures; and the influences of the pollutant triclosan on the population fluctuation relationship and population structure of the fishes, algae and daphnia, and the influences on the primary productivity of the algae are researched. In addition, the migration and transformation of triclosan in the simulated pond water ecosystem, such as sediments and organisms, can also be researched. The device provided by the present invention is a microcosmic device integrating water conveyance, reagent transmission, natural weather simulation, monitoring, temperature control and sewage treatment, enables ecologists to research aquatic organisms and micro-ecology from multiple angles, can be adopted to more conveniently research the influences of the chemical substances on the pond water environment, will promote the progress of related researches, and has scientific research values. Meanwhile, the device reduces the influences of experiments on the environment and has certain social benefits. Apparently, those skilled in the art can make various modifications and variations on the present invention without departing from the spirit and scope of the present invention. Therefore, if these modifications and variations of the present invention fall within the scope of the claims and equivalent technologies of
Description
the present invention, the present invention is also intended to include these modifications and variations.
Claims (5)
1. A microcosmic experimental device for simulating a pond ecosystem, comprising three layers of structures from top to bottom, wherein an upper layer structure is provided with at least one cross bar and a tank body; and the tank body is located below the cross bar and is slidably connected with the cross bar through a sliding structure; a weather simulation system, a periodic monitoring system and a reagent storage and transmission system are arranged on the tank body; a middle layer structure is provided with a tray; a control system and a temperature control system are arranged on the tray; and a through hole is formed in the tray; the control system comprises at least two simulated ponds; water inlet and outlet pipelines are arranged on side surfaces of the simulated ponds; and the water inlet and outlet pipelines are connected with control switches; the temperature control system comprises a temperature sensor and a temperature regulator; the temperature sensor is located inside or outside each simulated pond or on the other side of the tray corresponding to the bottom of each simulated pond; and the temperature regulator is located on the tray; a lower layer structure is provided with a sewage treatment tank which is connected with the through hole through a pipeline.
2. The device according to claim 1, wherein the weather simulation system comprises a thunder simulator, a wind simulator and an illumination lamp for providing illumination for the simulated ponds; the thunder simulator is formed by connecting a diode, a voice coil and a battery, and the voice coil is located at the bottom of the tank body and opposite to the middle layer structure; the wind simulator is formed by connecting a fan with a battery; and the fan is located at the bottom of the tank body and opposite to the middle layer structure.
3. The device according to claim 1, wherein the periodic monitoring system is a networked monitoring camera capable of monitoring all the simulated ponds.
Claims
4. The device according to claim 1, wherein the reagent storage and transmission system comprises reagent bottles, peristaltic pumps and transmission pipelines, which are arranged on the tank body and have the same number as the simulated ponds; one end of each peristaltic pump is connected with each reagent bottle, and the other end is connected with one end of each transmission pipeline; the other end of each transmission pipeline is located above the corresponding simulated pond by sliding the tank body on the cross bar.
5. The device according to claim 1, wherein bugles for placing a filter mesh is arranged on an inner wall of each simulated pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103166A AU2020103166A4 (en) | 2020-11-02 | 2020-11-02 | Microcosmic experimental device for simulating pond ecosystem |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103166A AU2020103166A4 (en) | 2020-11-02 | 2020-11-02 | Microcosmic experimental device for simulating pond ecosystem |
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| Publication Number | Publication Date |
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| AU2020103166A4 true AU2020103166A4 (en) | 2021-01-14 |
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| AU2020103166A Ceased AU2020103166A4 (en) | 2020-11-02 | 2020-11-02 | Microcosmic experimental device for simulating pond ecosystem |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607906A (en) * | 2021-08-02 | 2021-11-05 | 北华航天工业学院 | Water benthonic primary productivity measuring instrument |
| CN116338131A (en) * | 2023-05-23 | 2023-06-27 | 中交第一航务工程局有限公司 | Test device and method for simulating microbial water quality restoration under different hydrodynamic conditions |
-
2020
- 2020-11-02 AU AU2020103166A patent/AU2020103166A4/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607906A (en) * | 2021-08-02 | 2021-11-05 | 北华航天工业学院 | Water benthonic primary productivity measuring instrument |
| CN113607906B (en) * | 2021-08-02 | 2024-06-14 | 北华航天工业学院 | Primary productivity measuring instrument for benthonic water body |
| CN116338131A (en) * | 2023-05-23 | 2023-06-27 | 中交第一航务工程局有限公司 | Test device and method for simulating microbial water quality restoration under different hydrodynamic conditions |
| CN116338131B (en) * | 2023-05-23 | 2023-08-22 | 中交第一航务工程局有限公司 | Test device and method for simulating microbial water quality restoration under different hydrodynamic conditions |
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