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Date: 30-3-2019
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Date: 14-10-2018
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Date: 11-10-2018
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Recycling: tin and lead
Recycling of tin and lead, particularly the latter, takes place on a huge scale. The tin used to coat steel cans is recovered using specialized detinning processes. In Europe, about one-third of tinplate produced is currently recycled, while in the US in 2001, 58% of tin-plated steel cans were recycled. Lead–acid storage batteries represent a major source of metal that is recovered. In 2001, ≈78% of refined Pb manufactured in the US originated from recycled metal, much of it (_1 Mt) coming from spent batteries from vehicle and industrial sources.
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هل يمكن أن تكون الطماطم مفتاح الوقاية من السرطان؟
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اكتشاف عرائس"غريبة" عمرها 2400 عام على قمة هرم بالسلفادور
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جامعة الكفيل تقيم ندوة علمية عن الاعتماد الأكاديمي في جامعة جابر بن حيّان
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