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A device and method for simulating the influence of different light levels on nutrients in water bodies

A nutrient salt and water body technology, applied in the field of lake water environment research, can solve the problems of unclear migration and transformation mechanism, complex photochemical behavior mechanism, etc.

Inactive Publication Date: 2017-09-29
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the complex photochemical behavior mechanism of nitrogen and phosphorus organic matter pollutants in lake water, their migration and transformation mechanism is still unclear.

Method used

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  • A device and method for simulating the influence of different light levels on nutrients in water bodies
  • A device and method for simulating the influence of different light levels on nutrients in water bodies
  • A device and method for simulating the influence of different light levels on nutrients in water bodies

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] This embodiment provides a device for simulating the influence of light on nutrients in water, such as figure 1 with figure 2 As shown, it is mainly composed of two parts: the container part and the water body online monitoring system. Specifically include:

[0079] More than one container 10 for experiments is a cylindrical shell; in order to reduce the interference to the experiment, the inwall of the container 10 is made of plexiglass; the top of the container is provided with an exhaust port 11 and a sample inlet 12. The side wall is wrapped with an interlayer 20, the interlayer 20 is provided with a water inlet 20a and a water outlet 20b, and the water inlet 20a and the water outlet 20b are respectively connected to the circulating water bath device 40; the light source 13 is installed on the top of the container 10; the illuminance controller 45 Connect and be used for controlling the illuminance of light source 13; Aeration device 32 (can adopt aeration head) ...

Embodiment 2

[0090] This embodiment is another form adopted on the basis of the device in Embodiment 1.

[0091]The aeration device of this embodiment includes: the bottom end of the rotating shaft is connected to the air guide plate, and two air guide rods are respectively extended downwards along the lower end surface of the air guide plate, and the two air guide rods are arranged symmetrically in the circumferential direction of the air guide plate , and each air guiding rod is set close to the inner wall of the container, and the distance between each air guiding rod and the inner wall in this embodiment is between 1-2 cm.

[0092] The device of this embodiment is also provided with: a fixed rod, arranged along the axis of the rotating shaft, and fixedly connected with the top plate of the container at the same time, the lower end of the fixed rod passes through the center of the air guide plate and extends to the bottom of the air guide plate; the installation plate, and The lower end...

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Abstract

The invention discloses a device for simulating the influence of different illumination conditions on water body nutritive salt. An exhaust opening and a sample inlet are formed in the top end of a container, a light source is mounted at the top inside the container, the side wall of the container is provided with multiple sample taking openings and wrapped by an interlayer, an aeration device is arranged in the container, a rotating shaft is connected with a stirring paddle, and blades of the stirring paddle are of hollow structures and provided with air outlets; an illuminance controller is connected with the light source in the container; a circulating water bath device is connected with a water inlet and a water outlet of the container respectively; a temperature controller is connected with a temperature probe in the container, and the temperature controller is connected with the circulating water bath device simultaneously; a dissolved oxygen controller is connected with a nitrogen-oxygen gas mixture conveying device and controls the nitrogen-oxygen gas mixture conveying device to conduct aeration on a water sample in the container through the rotating shaft and the aeration device; the dissolved oxygen controller is connected with a dissolved oxygen detector; a nitrogen-phosphorus detector is used for detecting the nitrogen-phosphorus concentration of the water sample in the container; a pH value controller is connected with a pH value detector.

Description

technical field [0001] The invention belongs to the field of lake water environment research, and in particular relates to an experimental device for simulating the influence of different light on nutrient components of water body. [0002] The present invention also relates to a method for performing an experiment using the above-mentioned experimental device. Background technique [0003] In recent years, with the development of social economy and the progress of agricultural and industrial technology, the nitrogen and phosphorus-based nutrients and organic matter entering lakes or urban inland waters have continued to increase, resulting in the proliferation of algae and other aquatic organisms, the decline in water quality, and the decline in function. , resulting in varying degrees of eutrophication of the water body. The sources of pollutants such as nitrogen, phosphorus, and organic matter in natural water bodies such as lakes mainly include exogenous input and contr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18
CPCG01N33/1826
Inventor 张莉王圣瑞杨嘉春
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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