Zinc Recovery from Wastes
A Multilevel Sustainability Analysis of Zinc Recovery from Wastes Zinc is important transition metal which has wide range of applications in different fields of life. A specific amount of zinc is required to human body for healthy growth and its deficiency cam cause adverse effects to human health. Zinc is an important nutrient for plant growth. Deficiency of zinc in plants can results in discolouration of leafs and decreases in crop yield. Zinc is important element in steel coating (galvanising) due to its corrosion resistant properties. Zinc combines with other elements to form different alloys (like Bronze and Brass) which have various applications. Almost 50% of total zinc is utilised in galvanising, 17% is used for alloying such as die casting and similar percentage is used for making bronze and brass. Other applications include roofing, gutters and construction purposes (6%), as chemicals (6%) and miscellaneous (4%). The world consumption of zinc is increasing 4.7% per year