Monitoring test system for burying gas and leachate transmit process

Abstract

The invention discloses a test system for monitoring the process of land fill gas and leachate transmission, comprising a pulsation-free pump, an air compressor, a pressure earth column, a rainfall earth column, a temperature control earth column, a natural earth column and a computer, wherein, a pressure transducer, a liquid volume metering vessel, a temperature pickup and a pair of scales are respectively connected with the computer; a valve is respectively connected with the air compressor and a filter; a gas mass flowmeter is respectively connected with the pair of scales and the computer; the pressure earth column is respectively connected with a piston and the valve; the rainfall earth column is respectively connected with the piston and the valve; the temperature control earth column is respectively connected with a piston heating bath and a piston cooling bath; the natural earth column is connected with the valve; a piston vessel is connected with the valve. The invention is simple in structure, convenient in operation and accurate in test data with shortened test period, high precision of test data and quick automatic data acquisition.

Description

technical field [0001] The present invention relates to a monitoring test system, more specifically to a monitoring test system for the transmission process of landfill gas and leachate, which is mainly used for quantitative dynamic monitoring of landfill gas and leachate in multiple fields (temperature-moisture-pressure) ) coupling, not only can be used for the monitoring and research of pollutants in urban waste landfills, but also for the water-gas two-phase flow test in geotechnical engineering, the transmission test of oil pollutants in petroleum engineering, water conservancy The penetration test of rock and soil in hydropower engineering, the nuclide migration test in the geological treatment of nuclear waste, and the leaching test of coal gangue in mining engineering also have extensive application value. Background technique [0002] Environmental pollution caused by landfill pollutants has become one of the most prominent environmental problems at present and in th...

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Problems solved by technology

[0005] (1) None of the equipment can realize the test simulation of the three-field coupling effect of temperature-moisture-pressure, but can only perform test simulation for a single field (only considering the effects of pressure, moisture or temperature)

[0006] (2) In terms of test process control and data collection, most of the previous equipment was manually operated and recorded, and some equipment used computer-aided data recording, but it was unable to track, control and monitor the test process in real time, which easily caused human resources. Waste and over-discrete test data will adversely affect the test accuracy

[0007] (3) Most of the equipment has only a single and fixed interface, which makes it impossible to expand the equipment to meet the further needs of the research

Moreover, it is impossible to reasonably replace the instrument, resulting in low expandability and flexibility of the equipment, and single function

[0008] (4) Existing equipment has a long period of experimental research under different environmental conditions, which cannot solve the problem of simultaneous orthogonal experimental research for multiple sets of equipment

The monitoring test system for landfill gas and leachate transmission process was developed to solve the problems of difficult system coupling analysis, inaccurate data monitoring and difficult control of test conditions.

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