Goa in India is a mining belt and there are piles of mining wastes dumped
also vast land which are to be reclaimed by technological means.
similar waste lands must have been there in the whole world. it is to know in this direction more about the global technologies and systematic efforts done in this direction.
There are several methods of reclamation of mine waste lands. Physical, chemical and biological methods. For ecological services physical followed by biological methods of re-vegetation seems to me to be perfect for clean up of environment. You can get several publications in context in my profile. If you get trouble to download please mail me at my mail id: [email protected]. Best wishes.
There are several methods of reclamation of mine waste lands. Physical, chemical and biological methods. For ecological services physical followed by biological methods of re-vegetation seems to me to be perfect for clean up of environment. You can get several publications in context in my profile. If you get trouble to download please mail me at my mail id: [email protected]. Best wishes.
Land reclamation can be achieved with a number of different methods. The simplest method involves simply filling the area with large amounts of heavy rock and/or cement, then filling with clay and dirt until the desired height is reached. The process is called "infilling" and the material used to fill the space is generically called "infill". Draining of submerged wetlands is often used to reclaim land for agricultural use. Deep cement mixing is used typically in situation in which the material displaced by either dredging or draining may be contaminated and hence needs to be contained.
I also go with land reclamation, one can level the waste land, add clay so as to prevent the entry of oxygen and water which might cause oxydation of sulphides presents in the waste material. After addition of a considerable layer of clay, one can then introduce vegetation (species which grows faster and have a dense coverage).
In most metallic mines the wastes are very acidic from sulphides in the ore. These can be neutralized with crushed limestone or calcite. I recently visited a limestone mine whose production is directed partly towards land reclamation. Apparently, the reclaimed land is being returned to agriculture.
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