Experimental system for detecting COD of water body based on ozone chemiluminescence method
A chemiluminescent method and experimental system technology, which is applied in the field of sewage treatment, can solve the problems of long sample analysis time period and achieve the effects of shortening sample analysis time, reducing consumption and facilitating maintenance
Pending Publication Date: 2022-01-21
BEIHUA UNIV
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The traditional COD detection process consumes many kinds of reagents, and the sample analysis time period is long
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[0032] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0033] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" ", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience o...
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The invention provides an experimental system for detecting COD of a water body based on an ozone chemiluminescence method, which belongs to the field of sewage treatment. The system comprises a micro-fluidic chip, an ozone preparation unit, a liquid sample introduction unit and a data acquisition unit. The ozone preparation unit comprises an ozone generator, an oxygen bottle, a primary pressure reducing valve, a precise air pressure regulator and a precise digital pressure gauge; the liquid sample introduction unit comprises a micro-injection pump and a standard injector; and the data acquisition unit comprises a photomultiplier, a data acquisition card and a computer. Ozone generated by the ozone preparation unit and a glucose solution in the liquid sample introduction unit enter the micro-fluidic chip through a pipeline and are subjected to chemiluminescence reaction in the micro-fluidic chip, and weak light generated in the reaction process is acquired by a photomultiplier in the data acquisition unit, converted by a data acquisition card and processed in a computer. The microchannel is adopted to solve the defect of large reagent consumption in the traditional detection means, and photomultiplication can detect the luminescence phenomenon in the reaction process in real time.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an experimental system for detecting water body COD based on an ozone chemiluminescence method. Background technique [0002] At present, my country's annual average sewage discharge is 70 billion cubic meters. Among the 411,107 groundwater monitoring points across the country, about 60% of them have poor or extremely poor water quality, and 38.3% of the key lakes controlled by the state have pollution-level water quality. Water pollution control is imminent. Traditional water quality monitoring methods mainly include potassium dichromate method, potassium permanganate method and coulometric titration method. The traditional COD detection process consumes many kinds of reagents, and the sample analysis time period is long. Contents of the invention [0003] The invention provides an experimental system for detecting water body COD based on the ozone chemiluminescence...
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Login to View More IPC IPC(8): G01N21/76G01N21/01B01L3/00
CPCG01N21/76G01N21/01B01L3/5027B01L2200/10
Inventor 孙丽霞宁宏阳李鹏张玉峰张其久王鑫洋徐赫男杨丰源程小祥田科王展岳杨天龙
Owner BEIHUA UNIV