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Pollution of non-ferrous material |
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| Release time:2013-05-07 Source:admin Reads: | |
| Presently, metal, steel and cooper etc. are widely used in many industrial. Especially some non-ferrous scrap metal often can be recycled. The secondary materials in scrap are vital to the metallurgy industry, as the production of new metals often needs them. Some recycling facilities resmelt and recast non-ferrous materials; the dross is collected and stored onsite while the metal fumes are filtered and collected. Non-ferrous scrap metals are sourced from industrial scrap materials, particle emissions and obsolete technolog, for example, copper cables scrap. Precious non-ferrous materials are usually sourced from metal labels makers, jewelry, electronics and used industrial catalysts. Recycling non-ferrous materials can pose hazards due to exposure. Skin disorders, respiratory problems and poisoning have been reported as health hazards. Due to their rarity, these gold, silver and copper artifacts were treated as luxury items and handled with great care. The use of copper also heralded the transition from the Stone Age to the Copper Age. The Bronze Age, which succeeded the Copper Age, was again heralded by the invention of bronze, an alloy of copper with the non-ferrous metal tin. For some luxury bags, they usually choose to assemble with metal labels that made of copper. Maybe many people don’t know that the non-ferrous materials also can pollute the environment. In your daily life, you can see metals labels on bags, shoes and anywhere else. You can collect and make these labels recycled if possible. Though the pollution agents vary for each non-ferrous metal, they often include sulfur dioxide, particulates and various constituents such as fluorides. Sulfur dioxide is a known problem as most non-ferrous metals are extracted from sulfide ores. They can be recovered in high amounts and be sold as liquid sulfur oxide or sulfuric acid. Submicron metallic particulates are released in every aspect of the production of non-ferrous metals. These particulates may be removed through baghouses, electrostatic precipitators and drop scrubbers. Constituents such as fluorides vary from smelter to smelter and can be recovered or removed through special processes. |
