Groundwater Pollution Evaluation based on Entropy Value-Fuzzy Conprehensive Evaluation Method——Taking a Typical Garbage Dump in Henan province as an Example
In order to fully understand the pollution situation of the garbage dump site,combined with the actual situation of the garbage dump,investigation,surveys and laboratory analysis were conducted on the sewage of the garbage dump site and the downstream water plant.The DRASTIC model was used to evaluate the anti-pollution performance of the garbage dump and the surrounding plots.The results show that the region has moderate anti-fouling performance.There is a certain risk of pollution.Based on the entropy value-fuzzy comprehensive evaluation method,combined with the single index index,Nemero index pollution evaluation method,the groundwater quality of garbage disposal sites and water plants is evaluated.The landfill leachate pollution to the first layer of groundwater is obtained.The results indicate that the groundwater in the garbage site has been contaminated by leachate from the garbage.GW1 water quality is good,while GW2 and GW3 water quality are poor.GW4 in the water plant has not been contaminated,and the groundwater quality is good.pollution prevention and control measures should be taken for garbage disposal sites,as well as active treatment of groundwater,to avoid any impact on the daily water use of residents in the area.
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