Multi-parameter collection and detection device for landfill gas

Abstract

The invention discloses a multi-parameter collection and detection device for landfill gas, which comprises a gas collection module, a gas detection module, and a gas recovery module. The gas collection module includes a shaft tube, a six-port ventilation seat, a suction tube, a suction head, a dryer, a filter, a first air pump, and a gas storage tank; a threaded joint is arranged on the bottom end of the shaft tube; the six-port ventilation seat is connected to the shaft tube; the suction tube is arranged in the shaft tube; the dryer is connected to the top of the suction tube; the filter isconnected above the dryer; the first air pump is connected to the filter; the gas storage tank is connected above the first air pump; a photoionization sensor is arranged in the gas storage tank; andthe gas detection module includes a first gas flow meter, a second air pump, a detection chamber, and a detection terminal connected by wireless. The multi-parameter collection and detection device for the landfill gas, which can be economical, efficient, rapid, and engineering-scale applied, meets actual usage requirements.

Description

technical field [0001] The invention relates to a multi-parameter collection and detection device for gas in a garbage landfill site, which belongs to the technical field of environmental rock and soil. Background technique [0002] With the rapid development of my country's economy and the improvement of urbanization level, the output of municipal solid waste has increased sharply. Sanitary landfill is the main means of waste disposal in my country at present. With the large-scale construction of landfill, after domestic waste is landfilled, the organic matter in the waste degrades and produces a large amount of gas. Landfill gas is a poisonous and foul-smelling gas. Flammable and explosive gas, often containing CH 4 , CO 2 , N 2 , NH 3 、H 2 S, H 2 Domestic and foreign studies have shown that the composition of landfill gas is constantly changing, and the proportion of each component is closely related to the degradation rate of domestic waste. Real-time monitoring of ...

AI Technical Summary

Problems solved by technology

At present, indoor testing is the main method of landfill gas testing. Since the composition of landfill gas is a dynamic change process, it is difficult to analyze in real time in indoor testing. In addition, due to the difference in the detection range and detection conditions of each detection electrode, it is difficult to perform multiple measurements on the same gas. The parameters are detected at the same time, and the electrodes may interfere with each other, reducing the accuracy of the data

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