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Monitoring of Environmental Parameters

Worldwide, as well at all our sites in Brazil, we are monitoring our emissions, both fulfilling legal requirements and at the same time complying with our internal guidelines.

More precisely, the following environmental items are monitored: water usage, waste water treatment, metals in waste water effluents (inorganic + organic), air emission (e.g. Carbon dioxide, Methane, Laughing Gas) and waste volume.

Effluent treatment  

At our site in Porto Feliz, where water is collected from the Tietê river, the water used in the production process is returned to the river only after treatment, following strict parameters. In our retro-washing project in 2007 the whole water collection and treatment was reviewed in detail and made more efficient.

In 1985, LANXESS in Duque de Caxias was one of the first companies in Rio de Janeiro State to build a primary physical and chemical treatment station for its liquid wastes. This station was expanded in 1992 through the addition of a secondary (biological) treatment stage. Since then, it has endeavored to ensure that its output complies constantly with legal standards.

The capacity of the LANXESS’s Industrial Wastewaters Treatment Station at Duque de Caxias was expanded by 30%, with 120% of its liquid waste equalization capacity, installing a third liquid waste treatment phase that consists of two stabilization ponds.

The modern industrial plant at Cabo de Santo Agostinho, Pernambuco State, uses technology in solution, instead of emulsion, which produces a negligible amount of waste materials. The liquid wastes are treated at a biological station. The Triunfo plants use the liquid wastes treatment plant run by this Petrochemical Complex.

Solid waste

Solid waste amount at our site in Porto Feliz has been continuously reduced. Between 2004 and 2007 alone waste fell by 40%. At the whole site, waste is separated by type in recycling containers.

Through its innovative solid waste beneficiation program implemented in 1997, by 2002 LANXESS had eliminated all environmental liabilities built up during forty years in operation. Thanks to their high calorie power, these solid wastes were included in the energy matrix of a cement plant, burned in its furnaces during the co-processing stage.

Through these efforts, the company was awarded the 1999 Ecology Prize by the National Confederation of Industries (CNI - Confederação Nacional da Indústria) at the State level, in the Solid Waste Management category.

In 1997 these solid waste were transferred to the Plastimassa plant in the Magé municipal district (Rio de Janeiro State), where they were processed as fuel for the cement plants furnaces in Minas Gerais State.

In 2001, at the Duque de Caxias unit, a total of 40,000 tons were disposed off, bringing its environmental liability down to zero. The areas where this waste was dumped are being steadily reclaimed, as there was no contamination of the water table.

At Cabo de Sanoa Agostinho plant, all waste and garbage are separated at their points of origin, ensuring correct collection and disposal without overloading the final waste disposal system. The quality of this water table is also monitored through piezometric wells.

The solid waste produced by the synthetic rubber SSBR, in Triunfo plant, is treated at this petrochemical complex. Today its environmental liabilities have been reduced to 1,500 tons, with final disposal already defined. The plant in Triunfo constantly cleans up and monitors the water table.

Atmospheric emissions

The emissions generated in all production processes of the Porto Feliz site are filtered. State-of-the-art technology is used to comply with the environmental requirements.

The boilers at the LANXESS industrial plant in Duque de Caxias have been adapted to burn natural gas, cutting costs and making its energy generation process more efficient.

Additionally, sulfur dioxide emissions into the atmosphere were eliminated, while curtailing discharges of carbon dioxide and particulate matter.

Together with other enterprises in the Campos Elíseos Industrial Complex in Duque de Caxias, LANXESS has been installing an air monitoring network, consisting of five stations fitted with the latest-generation on-line meters that forward data to the Rio de Janeiro State Environment Bureau (Feema) in real time, allowing this entity to monitor these emissions more effectively.