Real-time collection device and method for VSCs gas released on aeration dynamic water surface

Abstract

The invention discloses a real-time collection device and method for VSCs gas released on an aeration dynamic water surface, and relates to the technical field of sewage treatment. Comprising a box body system, a gas collecting system and a gas measuring system, the box body system comprises a gas collecting box, the gas collecting box is sleeved with a foam floater, a gas sample collecting opening is formed in the bottom of the gas collecting box, a gas outlet is formed in the side wall of the gas collecting box, and a connecting pipe is arranged at the gas outlet; and the Suma tank is communicated with the gas collecting box through a connecting pipe. According to the real-time collection device and method for the volatile sulfide gas, the VSCs gas naturally released from the aeration dynamic liquid level of a sewage treatment plant can be collected in real time, and the situation that natural release of the VSCs gas on the liquid level is interfered due to pressure change is avoided; meanwhile, a polytetrafluoroethylene connecting pipe-Suma tank inert collecting system reduces the situation that VSCs gas with active chemical properties is adsorbed by the device in the collecting process, and gas release rate, release flux, water discharge per ton and daily discharge parameters are accurately measured.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a device and method for real-time collection of VSCs gas released from a dynamic water surface by aeration. Background technique [0002] Urban sewage treatment plants play an important role in water pollution prevention and control. With the advancement of my country's urbanization process, my country's urban sewage treatment rate has increased year by year, and the number and scale of urban sewage treatment plants have continued to increase. At the same time, odor pollution in the process of sewage treatment is becoming a serious environmental problem. A large amount of malodorous gas released during the normal operation of sewage treatment plants will not only cause serious odor nuisance, but also have many potential hazards to human health. Determining the release rate, release flux, ton of water release and daily discharge of VSCs gas in each treatment unit of a se...

AI Technical Summary

Problems solved by technology

In this method, the shape of the gas-collecting air bag is controlled by the limit fixing component (fixed frame), and then the gas-collecting volume is controlled. In the actual gas-collecting process, the gas in the air bag will be pressurized due to the gravity of the air bag itself, and the air bag will be filled to the limit with gas. It is not easy to judge the critical state of the fixed component, and the adsorption of VSCs by the thin airbag itself leads to large errors in the analysis results.

[0004] At present, there are few studies on malodorous gases in sewage treatment plants, and the real-time collection devices and methods for calculating the release rate and release flux of VSCs gas released from the liquid surface of each structure unit in sewage treatment plants are relatively blank.

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