Abstract
In order to study the effect of water on the oxidation activity of residual coal in goaf, FTIR experiment was used to analyze the effect of water quality on the oxidation functional groups of coal under different soaking time; The experimental results show that based on the change trend of oxidation functional groups of coal in acidic and alkaline environment, the change of acidity and alkalinity of water will lead to the increase of - Oh peak area of coal sample; With the increase of soaking time of weak alkaline mine water, the content of Oh in coal sample is higher; The peak area of main oxidation functional groups of coal first increases and then decreases with the increase of soaking time.
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