By S. Vigneron
The aim of the symposium used to be to offer contemporary advances in characterization and keep an eye on of odour and unstable natural compound emissions within the surroundings, and to give a contribution to the cutting-edge of dimension and sampling instruments, effect prediction equipment and abatement concepts. issues lined have been: Legislative elements; Emission characterization; Abatement applied sciences, either recuperative and harmful; and aid equipment. except the worldwide difficulties of weather, all points on the subject of the office setting and reputable laws are mentioned.
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G. printing industry) up to 60 per cent reductions. A 25 per cent reduction is expected from the production of paints and surface coating. Recovery of evaporative losses 21 from large storage facilities by installing vapour recovery systems (stage I) for new installations starting in 1990 and for existing ones by 1995 will result in additional reductions of about 11 per cent of current VOC emissions in this sector. These measures affect, in particular, volatile halogenated hydrocarbon emissions.
Installing best available technology for motor vehicles could achieve VOC reductions of more than 60 per cent by the year 2000. 26 Table 6 Available VOC control techniques, efficiencies and costs Technique Thermal Incineration' Catalytic Incineration' Adsorption3 (activated carbon filters) Absorption (waste gas washing) Condensation3 Biofiltration Note: Efficiency (per cent) Cost (ECU/t) Application' 95 80-90 80-90 150-500 150-500 150-500 broad, for high concentration flows for lower concentration flows broad for low concentration flows 95 150-500 broad for high concentration flows 150 150 only for high concentration flows mainly low concentration flows 80-90 804 ') lower Concentrations 3 g/m3, (in many cases 1 g/m3); higher concentrations 5 g/m3.
Thus, it can be concluded that both the setting of emission standards and ambient air quality stundards, are important policy instruments to assess pollution levels and to reinforce additional source control measures in case of non-attainment of the environmental standards. Finally, pollution prevention efforts, emphasising process changes and substitutions rather than end-of-pipe pollution control techniques, have lead to substantial financial savings and benefits through careful and more efficient use of resources and materials.
Characterization and Control of Odours and VOC in the Process Industries by S. Vigneron