Demonstrative project of an innovative system to p.. (VOCFREE)
Demonstrative project of an innovative system to prevent the voc emissions generated by the industry
Date du début: 30 nov. 1999,
Date de fin: 31 déc. 2002
The use of organic solvents at the NOVEON Spain, S.L. plant, can produce emissions of volatile organic compounds (VOCs). These emissions cause different environmental impacts: they contribute to the formation of photochemical oxidants in the upper layer of the atmosphere, causing harm to the environment and to human health; and the reaction of VOCs with NOx and solar radiation generates photochemical oxidants, which damage human health and the environment.
The main aim of the project was to develop an innovative process for capturing, conducting and eliminating, by catalytic oxidation, VOC emissions, derived from the use of organic solventsâ compounds. This preventive activity would help avoid damage to the environment and to human health.
The objectives can be summarised as follows:
ï§ To replace the present technology (scrubbers) by an innovative process.
ï§ To ensure total cover of the factory to isolate and control all VOC emissions from both leakage and from the actual manufacturing process.
ï§ To drastically Reduce VOC emissions.
ï§ To prevent and to eliminate the direct and indirect effects of VOC emissions on the environment, and the potential hazard on human health.
ï§ To fully comply with the Directive 1999/13/CE, which permits a threshold of 150 mg/NmÂ³. This new technology was expected to reduce output to a lower level.
ï§ To reduce discharge of water from the scrubbers, which were then treated by an authorised waste manager (approximately 100 tonnes per year).
The project reported the following successful results:
ï§ VOC elimination efficiency of 98.5%, reaching values of 99.5%.
ï§ VOC emissions to between 4.7 and 14.4 mg/NmÂ³., while the acceptable maximum is 150 mg/NmÂ³ (according to the Directive 1999/13/CE).
ï§ Energy savings of 993,486 kWh per year.
ï§ Water savings of 25 mÂ³ per year.
ï§ Minimisation of waste generation: the new process produces 140 tonnes per year less than with the previous technology.
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