The Regional Directorate for that Environment, Planning and Housing (Dreal) notes, for its part, in an opinion issued around August [read below] that it will be necessary to verify this “in situ”. The group promises that you will have only a few “traces” around the outlet. In the long-term, is it really more expensive than the consequences with regard to image of a national meadow, in an agglomeration that relies heavily on tourism plus the sea?
The park has attached its notice to your meeting requirement every five ages. The industrial will have that will expose the measures or processes implemented “according on the evolution of the technologies” to improve the grade of its effluents, specifies Didier Réault, preside (UMP) in the park. He admits that processes could possibly be envisaged to further reduce pitfalls, but they are very really expensive and uncertain. This gives the “bauxaline”, inert material that the provider recycles by marketing it for your building, for embankment, the bulkheads of landfills, or, he explains, for any remediation of mine sites. And the actual French-American group HIG, which succeeded in August 2012 to a Franco-Australian group, asked May 19 last extension belonging to the authorization, with some notable improvements. Once in these filters under high pressure, the solid residues will be fully recovered as an alternative to going to sea as “red mud”. According to him a “precipitate” would form connected with seawater, “trapping” heavy mining harvests.
HIG could implement “pretreatments” that further reduce chemical releases.Consequently, the polluting factory has changed twice as owner. A “filter press” dehydrates and compacts the red sludge and two more should be installed.. In case of non-compliance because of the operator of its commitments, the park may ask the prefect for your supplementary order limiting or suspending this authorization to pollute.
There remains the lake treatment, loaded with a tiny soda and heavy metals.
After the ministerial reluctance regarding 1995, the group began for taking better account of its residues