| Co and Cu mine waste dump was investigated on Shilu, Changjiang county, Hainan province of China. The ore, soils, waste water, river water and plant in the waste dump were analyzed for environmental evaluation. The results indicated that the soil in the dump and around the dump was seriously polluted by As and Cu as well as other heavy metals. After mine wastewater had passed the dump for precipitation absorption reaction, the concentrations of SS, As, Cu, Co and Fe were dropped to keep pollutant carrying Shilu river had good water quality. The plants of Acorus Calamus Linn and Phyllostachys Heteroclada Oliver were polluted by the heavy metals in the mine waste dump. The concentration of Cr and Pb in the Saccharum Sinensis Roxb grown in the dump was higher than national food standard limits to show the soil was inadvisable to grow edible plants for both people and animals. |
