The Combined Effects Of Phytoremediation And Bioremendiation On Lead And Zinc Tailings

Mining development in the community make a significant contribution to economicdevelopment has also created a lot of tailings pile, not only account for a large number ofland pressure, but also the local heavy metal pollution may be deep each year. Mine andsurrounding land also pose a threat to the ecological environment and enormouseconomic losses, threatening the sustainable development of the mining industry.The study took the lead and zinc tailings in Guo Jiatun, Longhua, Chengde as theexample. It will study the different treatment of the arbuscular mycorrizal funguseffectthe growth of Loium pernne L, Tall fescue, Sedum spectabile Boreau andSetcreaseallidacv.Purple, mycorrhizal colonization rate and the uptake of heavy metals（lead, zinc cooper and cadmium） through the interior soil culture experiments. We willsummarize the potential capacity of the plants and arbuscular mycorrhizalfungusrepairing the heavy metal pollution in lead and zinc tailings.Research shows that Loium pernne L, Tall fescue, Sedum spectabile andSetcreaseallidacv.Purple can be able to survive without improved conditions in the lead-zinc tailings, and does not appear poisoning in the growth process. In the result ofreducing the lead, Loium pernne L> Setcreaseallidacv.Purple> tall fescue>Sedumspectabile. Boreau. Loium pernne L absorbed up to668.8μg·pot^-1. Boreau. In the resultof reducing the zinc, Loium pernne L> Tall fescue> Setcreaseallidacv.Purple>Sedumspectabile. Boreau. Loium pernne L absorbed the Zinc up to841.4μg·pot^-1. Loiumpernne L which is a local herb, can absorb the heavy metal of lead-zinc tailings wellaccording adding the vaccination G.mosseae.In the condition of lead-zinc complex pollution, the study designed differentconcentrations of G.mosseae on plants. The effect of absorbing lead and zinc weredifferent. The better treatment of absorbing Lead in Loium pernne L, tall fescue, Sedumspectabile Boreau and Setcreaseallidacv.Purple are followed by CK,2.5%,5%and2.5%,respectively the absorption of Loium pernne L, tall fescue, Sedum spectabile Boreau andSetcreaseallidacv.Purple are followed by668.8,3.3,257.1�'�648.4μg·pot^-1. The bettertreatment of absorbing zinc in Loium pernne L, Tall fescue, Sedum spectabile Boreauand Setcreaseallidacv.Purple are followed by5%, CK,1%and2.5%, respectively the absorption of Zinc in Loium pernne L, Tall fescue, Sedum spectabile Boreau andSetcreaseallidacv.Purple are followed by841.4、577.0、230.9�'�331.2μg·pot^-1. Indifferent improvement of G.mosseae, suitable content treatment can expand the area ofinfection, plants uptake the heavy metal in tailings well.The study shows that plant and microbial technology can effectively promote lead-zinc tailings ecological reconstruction and recovery to promote the economy sustainabledevelopment of mining and mine environment governance.