Heavy-Metal Elements Transfer, Distribution And Ecological Environment Impact By Mining In The Xiangsi River Area, Tongling

Though the exploitation and use of the mine is accelerating the development of the society and economy, simultaneously destroying the ecological environment and a great menace to the human health around the mining area. Some different types mine is exploiting or exploited around the Xiangsi river area, Tongling. Especially the Fenghuangshan copper mine in upriver and the Xinqiao pyrite mine in middle river have more great menace to ecological environment than others.Detailed information about the mine around the Xiangsi river was collected in this study. It is included the used or using pits, tailing reservoirs, discarded rocks heaps etc. The NP and AP of the two different types mine were tested via modified ABA test and analyzed the probability of AMD for them, consequently knew the Xinqiao pyrite mine has AMD. The Fortsner 5 sequential extraction method has been used to analyze heavy metal elements distribution and speciation state in the discarded rocks. The silicate state is primary, the next is reducible state, oxidizable state. The factors that control heavy metal elements transfer have been found. Then a comparative analysis that heavy metal elements content in soil, water, sediment between two types mine and assessment about the heavy metal elements were given. The result is that the heavy metal elements content in upriver is more than that in middle river.Finally, The cause and mechanism about the heavy metal distribution and pollution was analyzed. Some prevention and cure measures for cutting down heavy metal elements pollution was proposed. So this research has important academic and practical sense.