After 12 years, woody vegetation now covers the upper part of the rehabilitated area, offering a green visual landscape to the inhabitants of the village. However, in the lower part of the pile the vegetation shows excessive levels of cadmium, leading the researchers to propose an alternative technique to rehabilitate waste piles by classifying and selectively managing the mine waste.
Click here for original story, Evaluating the rehabilitation of an old mine waste rock pile
Source: Phys.org