Risk assessment method and system for refuse landfill polluted groundwater

Abstract

The invention relates to a risk assessment method for refuse landfill polluted groundwater. The method comprises the following steps of: acquiring a landfill risk parameter, an aeration zone anti-pollution property parameter, an aquifer vulnerability parameter, an evaluation object exposure parameter and a groundwater value level parameter; calculating the weight of an evaluation index by an analytic hierarchy process according to the weight and expert grading value of a calculation index, and obtaining a landfill polluted groundwater risk comprehensive assessment result by using the weight of the evaluation index and the expert grading value of the calculation index through a comprehensive index method mathematical theory; performing multi-stage early warning by combining the landfill polluted groundwater risk comprehensive assessment result, and proposing measures, which are needed to be improved, strengthened and monitored, in landfill management; and predicting the risk level of the landfill polluted groundwater after a treatment scheme is implemented according to the level of risk early warning by combining the proposed landfill treatment measure and implementation scheme, and checking the scientificity and reasonableness of the landfill treatment scheme. The invention also provides a risk assessment system for the refuse landfill polluted groundwater.

Description

technical field [0001] The invention belongs to the field of environmental management, and in particular relates to a risk assessment method for groundwater pollution by landfill sites. [0002] The invention also relates to an evaluation system for implementing the above method. technical background [0003] Due to random landfilling, non-standard use, imperfect management measures and many other factors in the landfill, landfill leachate leaks and pollutes the groundwater, and the groundwater has the characteristics of slow flow, weak degree of alternation, and low self-purification ability. It is difficult to effectively repair the pollution. In recent years, domestic and foreign incidents of groundwater pollution by landfills have occurred from time to time, and the risk management of groundwater pollution by landfills has attracted widespread attention from all over the world. At present, domestic and foreign research focuses on landfills. Research on anti-seepage mat...

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Problems solved by technology

[0003] Due to many factors such as random landfilling, non-standard use, and imperfect management measures, landfill landfills cause landfill leachate to leak and pollute groundwater, and groundwater has the characteristics of slow flow, weak alternation, and low self-purification ability. Difficult to repair if contaminated

In recent years, domestic and foreign incidents of groundwater pollution by landfills have occurred from time to time, and the risk management of groundwater pollution by landfills has attracted widespread attention from all over the world. Research on anti-seepage materials and landfill leachate treatment technology. With the continuous development of the computer software industry, it has become a trend to use computer software to manage the risk of landfill pollution to groundwater. There is no mature risk assessment system for groundwater pollution by landfills, which cannot accurately reflect the level of pollution risk of landfills to groundwater systems

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