10 April 2012 23:26 [Source: ICIS news]
SAO PAULO (ICIS)--Brazil’s water consumption for chemical production dropped 23% from 2004 to 2010, while other environmental figures for the chemical sector are improving, Brazil’s chemical association Abiquim said on Tuesday.
According to Abiquim, that means that for the same production volume, the domestic industry currently uses 23% less water than it did in 2004, the association said.
Also, Brazil’s chemical industry increased the volume of recycled and reused effluents to 31.3%, from 29.9%, reducing the amount of effluents released into the environment to 1.62 cubic metres/tonne of product, from 2.31 cubic metres/tonne in 2004.
The use of renewable fuel sources increased from 2.1 kg/tonne to 6.3 kg/tonne, while the use of non-renewable fuels dropped from 32.8 kg/tonne to 17.8 kg/tone of product.
According to the association, the generation of residues was effected by the 2008 global crisis. Between 2004 and 2008, the generation of solid residues had been stable (around 8.5 kg/tonne of product). However, after 2008, several plants had unscheduled stoppages, increasing the amount of solid residues generated to 9.8 kg/tonne of product in 2010.
“Unscheduled stoppages result in the release of a larger volume of residues that are settled at the distillation tower and reactors. During cleaning and maintenance, the residues are displaced and released, which increases the volume measured. Abiquim believes this figure will drop as plants are now operating without major stoppages,” said Abiquim’s regulatory issues manager Nicia Mourao, in Portuguese.
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