Sampling method and device for sewage from black and odorous rivers

Abstract

The invention discloses a black-odor urban river wastewater sampling method and device. Firstly, by means of a built-in gas and liquid dual-sampling mechanism, not only can black-odor urban river wastewater be sampled, but also air above a black-odor urban river can be sampled, follow-up detection of the wastewater and the air of the black-odor urban river is facilitated, and a researcher can know whether ambient air of the black-odor urban river is affected by the wastewater; secondly, under the action of an oxygen concentration detection alarm, oxygen content can be detected and alarmed, a worker is prevented from being in an oxygen-deficient environment, and sampling safety of the worker is improved; finally, by means of a lifting mechanism, wastewater in upper layer, middle layer or lower layer of the water area can be specifically sampled as required, and accuracy of detection research is improved. With adoption of the scheme, the researcher can know the contamination status of the black-odor urban river compressively, and follow-up water pollution control is facilitated.

Description

technical field [0001] The invention relates to the technical field of water pollution sampling, in particular to a method and a device for sampling black and odorous river sewage. Background technique [0002] At present, the urban river water environment ecosystem in my country is generally in an unbalanced state. The water body is black and smelly, the landscape effect is poor, and the pollution is serious. The root cause is that the amount of organic pollutants discharged into the river greatly exceeds the capacity of the water environment. Therefore, in order to better supervise and protect water quality, it is necessary to conduct regular sampling and testing of water areas. [0003] According to the above, the current sampling device for sewage is too simple and can only extract the sewage in the water area. This single sampling method cannot realize the sampling of the air around the water area, which in turn affects subsequent researchers' understanding of the surrou...

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Problems solved by technology

[0002] At present, my country's urban river water environment ecosystem is generally in an unbalanced state. The water body is black and smelly, the landscape effect is poor, and the pollution is serious. The root cause is that the amount of organic pollutants discharged into the river greatly exceeds the capacity of the water environment. Therefore, in order to better monitor and protect water quality, it is necessary to conduct regular sampling and testing of water areas

[0003] According to the above, the current sampling device for sewage is too simple and can only extract the sewage in the water area. This single sampling method cannot realize the sampling of the air around the water area, which in turn affects subsequent researchers' understanding of the surrounding environment of black and smelly rivers. At the same time, the existing sampling devices are generally only able to extract the upper layer of sewage in the water area. Therefore, it will have a great impact on the subsequent comprehensive research on water quality. In addition, due to the high concentration of carbon dioxide in some water areas, the oxygen content It is extremely rare. When researchers sample sewage, it is easy to cause hypoxia, which also brings great safety hazards to sampling. In view of the above defects, it is necessary to design a black and odorous river sewage sampling method and its device.

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