RESUMO
Vegetables and millet were grown to maturity in potted soil amended with 10% (by weight) of lignite fly ash. Analysis of the ash, soil, and crops for 40 elements showed Al, As, B, Mg, Mo, Rb, and Se to be absorbed at higher levels by the ash-grown plants than the controls in most instances. Selenium was of most concern, because of its toxicity and degree of plant uptake.
Assuntos
Carbono , Grão Comestível/análise , Elementos Químicos/análise , Fertilizantes , Resíduos Industriais , Panicum/análise , Verduras/análise , Cinza de Carvão , Material Particulado , Solo/análiseAssuntos
Ração Animal , Cádmio/análise , Esgotos , Ovinos/metabolismo , Silagem , Solo , Zea mays/metabolismo , Zinco/análise , Ração Animal/análise , Animais , Fígado/metabolismo , Silagem/análiseRESUMO
Sheep were fed a diet containing 30 per cent (dry weight) cabbage which had been grown on municipal sewage sludge from Syracuse, NY for 77 days. Slight increases were found in the concnetration of nickel in kidney, copper in liver and cadmium in certain animal organs as compared to those in sheep fed a control ration containing cabbage grown on soil. Polychlorinated biphenyls were also found at higher levels in the sludge-grown cabbage and in the livers of the respectively fed sheep as compared to controls. An increase in liver weight, proliferation of hepatic smooth endoplasmic reticulum and various degenerative changes were noted in the livers of the sheep fed the sludge-grown cabbage ration as compared to the controls.
