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ALUMINUM CYCLE

ALUMINUM CYCLE . ALUMINUM AND MINING INDUSTRY. MINERALS Al-silicates Nonsilicates feldspars Al(OH) 3 gibbsite

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ALUMINUM CYCLE

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  1. ALUMINUM CYCLE ALUMINUM AND MINING INDUSTRY MINERALS Al-silicates Nonsilicates feldsparsAl(OH)3 gibbsite micas AlPO4*2H2O variscite kaolines alunite basaluminite PLANT-AVAILABLE ALUMINUM Al3+ AlOH 2+ Al(OH)2+ Al(OH)4- Al-organic chelates “Al13” polymers Acid rains Acidification, pH < 5.5 Acid rains Weathering SOILS Acid rains; dust (Water and food) Alkaline decomposition, pH > 7 Acid r rains; dust Carboxylate and phenolic complexes Accumulation Adsorption ORGANIC MATTER Accumulation Adsorption HUMANS CULTIVATED PLANTS Food Root, Shoots and germination impairment; Reduced P and K uptake and impaired Ca2+ transport Seafood FORESTS Meat Neuro- toxicity Embrio- toxicity Milk Neuro- toxicity Embrio- toxicity DOMESTIC ANIMALS Forage Die-backs WILD ANIMALS OCEAN Embrio-and neurotoxicity; accumulation in algae, fish and animals

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