Sediment-water interface dissolved oxygen and pH automatic measuring device
A technology for measuring devices and water interfaces, applied in measuring devices, testing water, sustainable biological treatment, etc., to achieve the effects of avoiding adhesion, high data accuracy, and improving data accuracy
Active Publication Date: 2022-06-10
ZHEJIANG UNIV
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Problems solved by technology
Although sediments are the final destination of these pollutants, since these pollutants are usually difficult to degrade and participate in various biogeochemical cycles, even if the content is extremely low, it will cause disastrous consequences to the environment
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[0046] The first connecting pipe body 431 is sleeved in the second connecting pipe body 432, and the water outlet end of the first connecting pipe body 431 is provided with a first sealing plate 433, and a through hole 434 is provided on the first sealing plate 433; The inside of the pipe body 432 is provided with a drainage matrix 435, which is a cylindrical structure, and the axis of the drainage matrix 435 is arranged along the flow direction of the water flow; one end of the drainage matrix 435 communicates with the through hole 434, and the other end of the drainage matrix 435 is closed. A plurality of flow guide outlets 436 are arranged in a circumferential array on the side wall of the base body 435 .
[0047] The fluid entering the first connecting pipe body 431 passes through the first sealing plate 433 and then enters the cylindrical drainage base 435 through the through hole 434. Under the guidance of the drainage base 435, the fluid cannot directly flow along the se...
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The invention discloses a sediment-water interface dissolved oxygen and pH automatic determination device. A culture substrate is matched with an optical fiber dissolved oxygen sensor, a pH detection sensor, an air pump, a first peristaltic pump and a second peristaltic pump, and a stirring assembly is arranged in the culture substrate; the culture substrate is connected with the circulating pipe body to form an annular passage, the circulating pipe body is communicated with an upper-layer water body in the culture substrate, and a circulating pump and a temperature control assembly are arranged on the circulating pipe body; auxiliary pipes are arranged on the two sides of the bottom of the culture medium body, and the two auxiliary pipes communicate with the deposition layer in the culture medium body and communicate with the circulating pipe body and the temperature control assembly correspondingly; and the operation of the plurality of electric appliance parts is controlled by the industrial personal computer. Water circulation is achieved through the circulating pipe body, and natural water flow is simulated; the temperature of the sedimentary layer is controlled through the auxiliary pipe, the geothermal condition of the natural environment is simulated to control the temperature of the sedimentary layer, and the data accuracy is improved.
Description
technical field [0001] The invention belongs to the technical field of water resource environment monitoring, and in particular relates to a sediment-water interface dissolved oxygen and pH automatic measuring device. Background technique [0002] As an environmental boundary with significant differences in physical, chemical, and biological characteristics, the sediment-water interface is an important area where the coupling of biogeochemical cycles and ecosystems occurs. The material exchange process between the sediment and the overlying water body is very complex, including biological cycle, early diagenesis, adsorption and desorption of dissolved substances, precipitation and dissolution, etc. The sediment-water interface constitutes the interface between the overlying water body and the sediment, and the composition of particulate matter and soluble matter, the distribution of chemical phases, pH value, redox potential, and biological activity characteristics of this i...
Claims
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IPC IPC(8): G01N21/17G01N33/18
CPCG01N21/17G01N33/18Y02W10/10
Inventor 王奎
Owner ZHEJIANG UNIV