CN209961753U - Device for simulating influence of environmental factors on release of pollutants in water source reservoir sediments - Google Patents

Device for simulating influence of environmental factors on release of pollutants in water source reservoir sediments Download PDF

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Publication number
CN209961753U
CN209961753U CN201920639579.4U CN201920639579U CN209961753U CN 209961753 U CN209961753 U CN 209961753U CN 201920639579 U CN201920639579 U CN 201920639579U CN 209961753 U CN209961753 U CN 209961753U
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water
tank
probe
release
sediment
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CN201920639579.4U
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彭程
吴雪飞
姜蕾
童鸿
王先云
刘茵
袁鹏
陈蕾
金磊
姜巍巍
胡涛
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SHANGHAI CITY WATER RESOURCES DEVELOPMENT AND UTILIZATION NATIONAL ENGINEERING CENTER Co Ltd
Donghua University
National Dong Hwa University
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SHANGHAI CITY WATER RESOURCES DEVELOPMENT AND UTILIZATION NATIONAL ENGINEERING CENTER Co Ltd
Donghua University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment

Abstract

The utility model relates to a water pollution simulation and control technical field, for the device of simulation environmental factor to pollutant release influence in water source reservoir deposit, reserve mouthful, water sample collection mouth, deposit collection mouth, sampling water valve by heating and lighting system, cuboid basin, adjustable speed peristaltic pump, aqueduct, the case of intaking, play water tank, water inlet, delivery port, baffle, pH, DO, ORP and temperature on-line probe and constitute. During static simulation, the pH probe, the DO probe, the ORP probe and the temperature probe are arranged in a reserved opening of the pH probe, the DO probe, the ORP probe and the temperature probe for real-time monitoring, water is guided into a water tank through a speed-adjustable peristaltic pump and a water guide pipe, and a heating system and an illumination system are adjusted; during dynamic simulation, the water inlet and outlet speed and the water quantity of the adjustable peristaltic pump are changed for observation. The utility model discloses the accessible simulation is different seasons, is replaced round the clock and is reached the water conservancy disturbance, researches different environmental factor and to the influence of endogenous pollutant static state and dynamic release in the deposit.

Description

Device for simulating influence of environmental factors on release of pollutants in water source reservoir sediments
Technical Field
The utility model relates to a water pollution simulation and control technical field especially relate to the research device of endogenous pollutant release in simulation water source reservoir deposit.
Background
In order to prevent the excessive exploitation of urban underground water, reservoirs have gradually become the main water supply source of cities in China, and the endogenous pollution caused by reservoir sediments is a prominent problem of the current water source reservoirs.
The water source reservoir has the characteristics of deeper water depth, poor fluidity, longer water retention time, serious oxygen deficiency at the bottom of the water body, lower temperature and the like. When the environmental conditions are suitable, a large amount of nutrient salts such as nitrogen and phosphorus, heavy metals, odor substances and the like in the reservoir sediments are released into the overlying water body, so that the transparency and the pH value of the water body are reduced, the chromaticity and the odor of the water body are increased, the water quality of a water source is polluted and the like, and the urban safe water supply is influenced. Wherein, the material exchange between the endogenous pollutants in the sediment and the overlying water body mainly occurs on the water body-sediment interface. Environmental conditions such as temperature, pH, oxidation-reduction potential (Eh), Dissolved Oxygen (DO) concentration, etc. all affect physical, chemical, biological reactions at the interface, and ultimately affect the homing of elements in natural circulation. Therefore, the influence of the release of endogenous pollutants in the sediment of the water source reservoir on the water quality of the water source and the migration and transformation of endogenous pollutants in a water body-sediment interface are concerned, and the method has great significance for effectively controlling endogenous pollution and ensuring water quality safety.
At present, reservoir sediment research is mostly carried out by devices such as beakers, reagent bottles and small-scale experimental columns, the capacity is limited, the device system is unstable, and the device system is easy to be interfered by thought factors. Most of experimental devices are made of transparent glass or organic glass, sensory indexes of water and sediments are easy to observe, but the combination form of part of endogenous pollutants in the sediments and the living environment of microorganisms, animals and plants in the sediments can be changed by direct illumination of light. In actual environment, a certain illumination gradient exists in a water body-sediment system under the vertical irradiation of sunlight, and the illumination of a sediment part is generally weak.
The heating facility in the simulation test device usually heats directly from the bottom or heats in a water bath, and the temperature distribution of the system is more uniform; in actual environment, the reservoir heat source mainly comes from overhead solar radiation, the temperature distribution of the reservoir-sediment system is uneven, and a temperature gradient in the vertical direction exists.
The water in the simulation experiment device is almost completely static; in actual environment, the water source reservoir has intermittent water inlet and outlet processes, and the water body is not completely static. The transport effect of the water flow on the particles can cause different composition characteristics of the sediments at the upstream and downstream of the bottom of the reservoir, and the release capacity of endogenous pollutants in the sediments is determined to a great extent. The current simulation experiment device can not be accurately attached to the actual reservoir environment, so that errors exist in research of a water source reservoir.
Disclosure of Invention
The utility model provides a device of pollutant release influence in simulation environmental factor is to water source reservoir deposit, the technical scheme who adopts as follows:
an apparatus for simulating the effects of environmental factors on the release of contaminants from water source reservoir sediment, comprising:
a rectangular water tank is arranged in the water tank,
a heating and lighting system is arranged above the cuboid water tank,
one side of the rectangular water tank is provided with a water inlet, a reserved port of a pH, DO, ORP and temperature online probe,
the other side of the cuboid water tank is provided with a water outlet, a water sample collecting port, a sediment collecting port and a sampling water valve;
the water inlet tank is positioned on one side of the water inlet; the water outlet tank is positioned on one side of the water outlet;
the adjustable-speed peristaltic pump is connected to the water inlet tank and the water outlet tank;
the water guide pipe is used for respectively connecting the water inlet tank and the water outlet tank to respective speed-adjustable peristaltic pumps; and
the two baffles divide the bottom space of the cuboid water tank into an upstream, a midstream and a downstream from near to far according to the distance from the water inlet.
The device for simulating the influence of environmental factors on the release of pollutants in the sediments of the water source reservoir is characterized in that three online probe reserved openings for pH, DO, ORP and temperature are arranged in parallel in the length direction of a central line at the middle water-sediment interface on one side of the rectangular water tank.
The device for simulating the influence of environmental factors on the release of pollutants in the water source reservoir sediment is characterized in that three water sample collecting ports are arranged in parallel in the length direction of the central line at the middle water body-sediment interface on the other side of the rectangular water tank.
The device for simulating the influence of the environmental factors on the release of pollutants in the water source reservoir sediment is characterized in that three sediment collecting ports are arranged in parallel on the middle water body-sediment interface on the same side of the water sample collecting port along the length direction of the central line.
The device for simulating the influence of environmental factors on the release of pollutants in the sediments of the water source reservoir is characterized in that the water sample collecting port is positioned at the upper part of a water body-sediment interface.
An apparatus for simulating the effect of environmental factors on the release of pollutants from the sediment of a water source reservoir as described above, wherein said sediment collection port is located below the water-sediment interface.
The device for simulating the influence of the environmental factors on the release of the pollutants in the sediments of the water source reservoir is characterized in that the water sample collection port and the sediment collection port are respectively provided with a sampling valve.
The device for simulating the influence of the environmental factors on the release of pollutants in the water source reservoir sediment is characterized in that the cuboid water tank is made of organic glass, five surfaces of the cuboid water tank are enclosed, the cuboid water tank is hollow inside, and the surface of the cuboid water tank is covered by tinfoil.
The device for simulating the influence of the environmental factors on the release of the pollutants in the sediments of the water source reservoir is characterized in that the heating and lighting system consists of a bathroom heater, a temperature controller, a lighting controller and a timer.
Compared with the prior art, the beneficial effects of the utility model are that: the simulation device is more fit for the actual environment, can be used for researching the influence of different environmental factors on the static and dynamic release of endogenous pollutants in the sediment, and can also be used for mainly researching the release process of endogenous pollutants in the water body-sediment interface of the water source reservoir. The light environment of reservoir sediments in the natural environment is simulated by covering the surface of the water tank with tinfoil; the temperature and the illumination intensity of the reaction system are controlled to simulate different seasons and day and night alternation; simulating hydraulic disturbance by controlling water inlet and outlet speeds; and monitoring the environmental conditions on the water body-sediment interface of the reservoir through a pH probe, an ORP probe, a DO probe and a temperature probe.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
FIG. 1 is a schematic structural diagram of an apparatus for simulating the effect of environmental factors on the release of pollutants from water source reservoir sediments;
fig. 2 is a left side view of the water tank of the present invention;
fig. 3 is a right side view of the water tank of the present invention.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and the specific embodiments. In order to make the measures, creation features, achievement purposes and effects of the technical implementation of the present invention easy to understand and understand, the present invention is further explained below with reference to the specific drawings.
As shown in fig. 1, a device for simulating the influence of environmental factors on the release of pollutants in the sediments of a water source reservoir mainly comprises: the device comprises a heating and illumination system 1, a cuboid water tank 2, a water inlet tank 3, a water outlet tank 10, a water inlet 6, a water outlet 7, a water guide pipe 8, a pH, DO, ORP and temperature online probe reserved port 11, a sampling gate valve 12, a water sample collecting port 13, a sediment collecting port 14, a sampling water valve 15 and a baffle 16.
The heating and lighting system 1 is positioned above the cuboid water tank 2, namely the top of the device for simulating the influence of environmental factors on the release of pollutants in the sediment of the water source reservoir; the heating and lighting system 1 is composed of a bath heater, a temperature controller, a lighting controller and a timer.
One side of the cuboid water tank 2 is provided with a water inlet 6, a pH, DO, ORP and temperature online probe reserved port 11; the water inlet 3 is positioned above a reserved port 11 of the pH, DO, ORP and temperature online probe;
the other side of the cuboid water tank 2 is provided with a water outlet 7, a water sample collection port 13, a sediment collection port 14 and a sampling water valve 15; the water outlet is positioned above the water sample collecting port 13, the sediment collecting port 14 and the sampling water valve 15;
the bottom of the cuboid water tank 2 is provided with two baffle plates 16, and the bottom space is divided into an upstream, a midstream and a downstream from near to far according to the distance from the water inlet.
The water inlet 6 is connected with the water inlet tank 3 through the speed-adjustable peristaltic pump 4, wherein a water guide pipe 5 is arranged between the water inlet 6 and the speed-adjustable peristaltic pump 4; similarly, the water outlet 7 is connected with the water outlet tank 10 through the speed-adjustable peristaltic pump 9, wherein the aqueduct 8 is arranged between the water outlet 7 and the speed-adjustable peristaltic pump 9.
The cuboid water tank 2 is made of organic glass, and the surface of the cuboid water tank is covered by tinfoil so as to simulate the light environment of reservoir sediments in the natural environment; the cuboid water tank 2 is used for containing collected sediments and water samples.
Fig. 2 is a left side view of a rectangular parallelepiped water tank 2 in an apparatus for simulating the release of pollutants from the sediments in a source reservoir. Three online pH, DO, ORP and temperature probe reserved ports 11 are arranged in parallel on the water-sediment interface in the middle of the cuboid water tank 2 along the length direction of a central line, and a pH probe, a DO probe, an ORP probe and a temperature probe are inserted into the reserved ports before the device is operated and are used for monitoring the change conditions of pH, Eh, DO and temperature on the water-sediment interface in real time.
As shown in fig. 3, a right side view of a rectangular parallelepiped water tank 2 in an apparatus for simulating the release of pollutants from the sediments in a source reservoir is shown. Three groups of sampling ports are arranged in parallel on the water body-sediment interface in the middle of the rectangular water tank 2 along the length direction of a central line, and each group of sampling ports consists of a water sample collecting port 13 and a sediment collecting port 14; the sampling port at the upper part of the water body-sediment interface is a water sample collecting port 13, and the sampling port at the lower part of the water body-sediment interface is a sediment collecting port 14.
According to fig. 1, fig. 2 and fig. 3, the utility model has the following specific application method:
during static simulation, fresh sediments collected from the upstream, the middle and the downstream of a water source reservoir are paved on the upper part, the middle part and the lower part of the bottom of the cuboid water tank 2, and a certain thickness is kept. Three pH, DO, ORP and temperature online probe reserved ports 11 are respectively inserted into a pH probe, a DO probe, an ORP probe and a temperature probe to a water body-sediment interface at the upper, middle and downstream positions. The speed-adjustable peristaltic pump 4 connected with the water inlet tank 6 is operated to slowly guide fresh water covering water on the water source reservoir into the cuboid water tank 2 from the water inlet tank 6 through the speed-adjustable peristaltic pump 4 and the water guide pipe 5, so that the sediment is prevented from being resuspended. The heating and lighting system 1 is adjusted according to the actual conditions required, and the release research of endogenous pollutants in the sediments of the water source reservoir can be carried out after the adjustment is finished.
The water sample collection port 13 is provided with a sampling valve 12, and the sediment collection port 14 is provided with a sampling valve 15; when the sample is not taken, the sampling valve 12 and the sampling valve 15 are both in a closed state; during sampling, the sampling valve 12 and the sampling valve 15 are opened, and a water sample and a mud sample are respectively extracted by using the injector.
During dynamic simulation, after the static device is completed, the water inlet speed and the water quantity are controlled by changing the speed-adjustable peristaltic pump 4, the water outlet speed and the water quantity are controlled by changing the speed-adjustable peristaltic pump 9, so that the sediments are resuspended, and the influence of hydraulic disturbance caused by the water inlet and outlet processes of the reservoir on the release of endogenous pollutants in the sediments of the reservoir is researched.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. Device of simulation environmental factor to pollutant release influence in water source reservoir deposit, its characterized in that includes:
a rectangular water tank is arranged in the water tank,
a heating and lighting system is arranged above the cuboid water tank,
one side of the cuboid water tank is provided with a water inlet, a reserved port of a pH, DO, ORP and temperature online probe,
the other side of the cuboid water tank is provided with a water outlet, a water sample collecting port, a sediment collecting port and a sampling water valve;
the water inlet tank is positioned on one side of the water inlet; the water outlet tank is positioned on one side of the water outlet;
the adjustable-speed peristaltic pump is connected to the water inlet tank and the water outlet tank;
the water guide pipe is used for respectively connecting the water inlet tank and the water outlet tank to respective speed-adjustable peristaltic pumps; and
the two baffles divide the bottom space of the cuboid water tank into an upstream, a midstream and a downstream from near to far according to the distance from the water inlet.
2. The apparatus for simulating the effect of environmental factors on the release of pollutants from the sediments in a water source reservoir of claim 1, wherein three of said pH, DO, ORP and temperature in-line probe reserves are arranged in parallel along the length direction of the central line at the middle water-sediment interface at one side of the rectangular water tank.
3. The apparatus according to claim 2, wherein three water sampling ports are arranged in parallel along the length direction of the central line at the middle water-sediment interface at the other side of the rectangular water tank.
4. The apparatus according to claim 3, wherein three of said sediment collection openings are arranged side by side along the length direction of the central line at the same side of said water sample collection opening as the water-sediment interface.
5. The apparatus for simulating the effects of environmental factors on the release of pollutants from the sediments in water supply reservoirs of claim 4, wherein said water sampling port is located at the upper portion of the water-sediment interface.
6. The apparatus for simulating the effects of environmental factors on the release of pollutants from the sediments in a reservoir of a water supply of claim 5 wherein said sediment collection port is located below the water-sediment interface.
7. The apparatus for simulating the effects of environmental factors on the release of pollutants from the sediments in a reservoir of a water supply as recited in claim 6, wherein said water sampling port and said sediment sampling port are each provided with a sampling valve.
8. The apparatus for simulating the effect of environmental factors on the release of pollutants from the sediments in water reservoirs of water sources according to claim 1 or 7, wherein said rectangular water tank is made of plexiglass, is enclosed by five surfaces, is hollow inside and has its surface covered by tinfoil.
9. The apparatus for simulating the effects of environmental factors on the release of pollutants from the sediments in water supply reservoirs of claim 8, wherein said heating and lighting system is comprised of a bath heater, a temperature controller, a lighting controller and a timer.
CN201920639579.4U 2019-05-07 2019-05-07 Device for simulating influence of environmental factors on release of pollutants in water source reservoir sediments Active CN209961753U (en)

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Application Number Priority Date Filing Date Title
CN201920639579.4U CN209961753U (en) 2019-05-07 2019-05-07 Device for simulating influence of environmental factors on release of pollutants in water source reservoir sediments

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112051383A (en) * 2020-08-27 2020-12-08 上海交通大学 Simulation experiment device for migration and transformation of pollutants in underground water level fluctuation zone
CN112520865A (en) * 2020-11-18 2021-03-19 中国市政工程华北设计研究总院有限公司 Method and device for measuring release amount of water body litter pollutants
CN114814131A (en) * 2022-03-14 2022-07-29 中国环境科学研究院 Intelligent simulation device and experimental method for bottom sediment pollution process and control

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112051383A (en) * 2020-08-27 2020-12-08 上海交通大学 Simulation experiment device for migration and transformation of pollutants in underground water level fluctuation zone
CN112051383B (en) * 2020-08-27 2022-09-06 上海交通大学 Simulation experiment device for migration and transformation of pollutants in underground water level fluctuation zone
CN112520865A (en) * 2020-11-18 2021-03-19 中国市政工程华北设计研究总院有限公司 Method and device for measuring release amount of water body litter pollutants
CN114814131A (en) * 2022-03-14 2022-07-29 中国环境科学研究院 Intelligent simulation device and experimental method for bottom sediment pollution process and control

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