Method for evaluating underground water pollution source intensity

A technology of pollution source intensity and evaluation method, applied in special data processing applications, instruments, electrical and digital data processing, etc. reasonable effect

Inactive Publication Date: 2015-12-23
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

[0004] Although my country has made great progress in the risk assessment of groundwater pollution, in general, the level of research on the risk assessment of groundwater pollution in my country is relatively low. Increase support for risk assessment research, gradually establish and improve technical documents such as guideline

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  • Method for evaluating underground water pollution source intensity
  • Method for evaluating underground water pollution source intensity
  • Method for evaluating underground water pollution source intensity

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Embodiment

[0108] The landfill in Beitangtang area is located on the east bank of Yongding River, 150-400m east of Beitangtang Village, and the thickness of the Quaternary system gradually increases from west to east to 30-40m. The 4-8m below the surface near the Beitiantang landfill is composed of medium and fine sand; below it is a sandy gravel layer, with a thin layer of fine sand or sub-sandy soil lens in the middle, and the thickness of the sandy gravel layer is 18-22m. The buried depth of groundwater in this area is 25m~30m. The main recharge of groundwater comes from atmospheric precipitation infiltration, followed by upstream lateral runoff recharge, river infiltration recharge and agricultural irrigation return recharge. Groundwater flows from west to east. The permeability coefficient of the vadose zone is 5m / d. The annual rainfall is 160mm.

[0109] The second zone of the informal landfill in the North Paradise area is selected, with a landfill volume of 1,550,000m 3 , the ...

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Abstract

A method for evaluating underground water pollution source intensity comprises the steps of determining pollution source characteristic indexes according to underground water pollutant types, characteristics and positions and the like; determining vadose zone characteristic indexes according to vadose zone mediums, underground water depth and permeability coefficient and the like; determining an underground water pollution source intensity evaluation index system in combination with pollution source characteristic indexes and vadose zone characteristic indexes; causing the system to analyze underground water pollution source intensity evaluation indexes, establishing a hierarchical structure matrix, and utilizing an analytic hierarchy process to perform weight assignment on the underground water pollution source intensity evaluation indexes; establishing an underground water pollution source intensity grading evaluation method, and evaluating the underground water pollution source intensity. According to the evaluating method, pollution source characteristics and vadose zone characteristics are considered comprehensively, the underground water pollution source intensity is reflected accurately, underground water is protected; the scientific basis can be provided, and the underground water protection and management are more scientific and more rational.

Description

technical field [0001] The invention relates to the field of water environment protection, in particular to a method for evaluating the strength of groundwater pollution sources. Background technique [0002] The evaluation method of groundwater pollution source intensity needs to establish an evaluation index system and technical method suitable for the actual situation of groundwater pollution source intensity in my country according to the type, distribution, pollutant composition, hydrogeological conditions, and environmental impact characteristics of groundwater pollution sources. , the control of groundwater pollution, and the overall planning and management of economic regions provide a scientific basis. [0003] Many scholars have studied the evaluation methods of groundwater pollution. Zhou Changsong et al. used the DRASTIC model to establish the PCSM-AHP evaluation system to evaluate the groundwater in the Jingsheng Basin. Lei Jing and Zhang Sicong conducted an ev...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 席北斗吕宁磬李娟杨洋李鸣晓李翔贾文飞党秋玲
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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