Wettability of coalmine spoils in northwestern new mexico
1977
The wettability of coal-mine spoils in the Fruitland formation of northwestern New Mexico was studied for its effect on water infiltration. Water drop penetration and capillary rise tests were used to evaluate wettability of graded spoils, crushed overburden, and coal samples. Laboratory infiltration tests were used for verification. Results indicate: 1) spoils composed of coal fragments are poorly wettable or water-repellent; 2) organic matter in coal, especially in shiny high-grade coal, is a probable source of poor wettability; and 3) poor wettability reduces water infiltration into coaly spoils. Sodic-ity and spoil textures also play significant roles governing infiltration into spoils of this formation.
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