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Objective The waste produced by the washing of bauxite is stored in isolated tanks that avoid any kind of harmful impact on the environment. This waste is in pulp form and the water that is removed is then used in that very process of washing. After dredging, the tanks are then prepared for the planting of seeds of species native to the region. Operating Structure The Project for the Revegetation of Waste Tanks includes the development of technology and monitoring of the tanks for revegetation purposes, involving the classification of the substrate, fauna, plants, phytosociology, nutritional state of the plants, microbe biomass, adaphic entomofauna, soil fertility, implementation of experiments involving nutrient pulses, selection of species of leguminous plants with a potential for use in the revegetation process. Results Obtained The
main results obtained in the revegetation of waste tanks so far have been the
feasibility of establishing a vegetable cover on non-consolidated waste (mud)
by means of the hydro sowing process, the establishment of a vegetable cover on
the waste using species that have been inoculated with fungi and bacteria, identification
of Rhizobium bacteria native to the region with good potential for use in the
revegetation of water tanks, identification of species of native plants that are
capable of establishing these symbiotic associations. By June 2000, sixty hectares
of waste tanks had already been reforested.
Investments
- Agreement |
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