Automatic sampling and monitoring device for underground water in refuse landfill

Abstract

The invention discloses an automatic sampling and monitoring device for underground water in a refuse landfill. The automatic sampling and monitoring device comprises a water level gauge and an underground water sampling pipe which are placed underwater in a monitoring well; the water level gauge is connected to a multi-parameter online monitor through a transmission line; the underground water sampling pipe is connected to an online monitoring tank, sampling bottles and a well-flushing water collecting tank through an underground water sampling pump; the length of the underground water sampling pipe is controlled through an extension winch; a working power supply is provided by a solar cell panel and a storage battery or a generator; the operation of each part is controlled by a control transmission device; the control transmission device is connected to a remote terminal through the Ethernet and receives the signal transmitted by the remote terminal. According to the automatic sampling and monitoring device, the functions of automatic well washing, automatic layered sampling and the like of the underground water monitoring well of the refuse landfill can be achieved, the indexessuch as the water level, the conductivity, the temperature and the pH of underground water can be monitored on line, and therefore the pollution conditions of the underground water at different depthscan be reflected, and an objective reference basis is provided for monitoring and early warning of the underground water of the refuse landfill.

Description

technical field [0001] The invention relates to sampling of groundwater monitoring wells in landfill sites and groundwater quality monitoring technology, in particular to an automatic sampling and monitoring device for groundwater in landfill sites. Background technique [0002] With the advancement of science and technology and the improvement of the degree of industrialization, the urbanization process is getting faster and faster, and the amount of garbage generated has increased sharply. Environmental problems caused by landfills have received more and more attention. Garbage is fermented for a certain period of time after deep burial, coupled with the erosion and infiltration of rainwater to form landfill leachate. Landfill leachate usually contains high concentrations of BOD, COD, TOC, TSS, TDS, refractory organic pollutants, ammonium salts, sulfides, humus, etc. Once these pollutants are released into the environment, especially the soil and groundwater, it will cause...

AI Technical Summary

Problems solved by technology

[0003] Common groundwater sampling techniques often do not consider the layered distribution of pollutants in groundwater, which leads to misjudgment of the real pollution status of groundwater in landfill sites in many cases

Groundwater monitoring of landfill sites is usually achieved through regular sampling and analysis, which not only requires a lot of manpower and material resources, but also cannot guarantee the real-time monitoring of pollution

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