| Résumé : |
While manufacturing leather, it is inevitable that the facility will produce air emissions that will enter the environment. Responsible facilities will be concerned about that environmental impact and will mitigate, prevent, or substitute chemicals (or alter) production to lower their impacts. The air emissions fall into the following groupings :
1. Boiler incinerator emissions (oxides of nitrogen, NON ; oxides of sulphur, SOI ; 2.5 pm particulate matter, PM2 5 ; 10 pm particulate matter, PMI°, dioxins, and furans).
2. Beamhouse emissions (hydrogen sulphide, H2S ; ammonia, NH3 ; chlorine dioxide, C102, and SOI).
3. Dry-cleaning emissions (dichloromethane, tetrachloromethane/ perchloroethylene, and trichloroethane/ trichloroethylene).
4. Surface coating emissions (volatile organic compounds, (VOCs), listed later, and monomeric polymers).
5. Waste emissions (carbon monoxide, CO ; carbon dioxide, CO2 ; methane, CH4 ; ozone, 03; NON, water vapour, H2O ; nitrogen, N2, H25, and SOI).
Many of the emissions given above will be classified as greenhouse gases which means that as the enter the earth's atmosphere, they increase the global warming ability of the air (through their alteration of the radiative effects of these substances in the atmosphere). The most notable direct gases emitted by tanneries can be listed as greenhouse gases are : CO2, CH4, 03, nitrous oxide, N20, and H2O. |
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Ajouter le résultat dans votre panier Affiner la recherche2023 FAO methane report in INTERNATIONAL LEATHER MAKER (ILM), N° 62 (11-12/2023)
