7
Oct

The value of Aluminium Waste Recycling.

Escrito el 7 octubre 2010 por Jesus Guerro en General

The recycling of materials with significant content in aluminum, high volume of waste coming from the automotive sector, is an industry whose  finality is the production and sale of alloys (secondary aluminum)  that, in majority of cases, return to the automotive industry for the manufacture of components or delivered to the Construction sector as second principal destination.
The mixture of water and impurities that are removed from the bauxite in the process of extracting the metal, is considered highly harmful by the Normative on waste at  international scope.
 
Unfortunately, last Monday, in Hungary, a tailings pond of an aluminum plant broke and caused the deaths of four people and more than a hundred injured in seven different locations.

The cleanup of the spill corrosive that drowns west of the country, will last at least one year and it will cost tens of millions of euros, according to the Hungarian Ministry of Environment. The Government has declared a state of emergency.

 The biggest concern now is trying to stop the red tide of toxic mud (which has come to reach 2m deep) before it reaches the Danube, causing a water pollution sweet unprecedented.
Many people have suffered burns and eye irritation caused by lead and other corrosive elements present in the sludge. Three others are still missing.

For every ton of aluminum produced, the process generates approximately 24 kg of waste. In most cases, only partially reused and the rest of cases, It is discharged, so contributing to the problem of saturation in landfills.
The Spanish company BEFESA, is a world leader in the treatment of not only aluminum but of secondary waste processing, aluminum oxide and salt cake. In this way the company belonging to Abengoa Group aims to reduce the contamination risk arising from these processes and to introduce new industrial materials from waste, never considered as raw material before.
During the past year 2009, BEFESA collected and processed in its plants 240,000 tons of waste. These residues were subsequently converted in full into useful raw materials for industry (aluminum salts and aluminum oxide fluxes). This activity of salt slag recycling has prevented the extraction of 267 100 t of non-renewable raw materials (oxides, salts and minerals), while avoiding the dumping of 224 200 t of hazardous waste.
The objective of this industry is therefore clear: to eliminate an entire medium-term disposal of solid waste that this industry generates, directly and indirectly.

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