Capacity Of Phosphorus Load
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Aplicação do modelo QUAL2Kw para avaliação da capacidade de assimilação de cargas pontuais no Rio Itapanhaú. / Application of the model QUAL2Kw for assessment of point sources at Itapanhaú River.
The presence of point sources in rivers and streams implicates in downstream impacts that can commit their respective future uses. For this reason, the mathematical modeling comes as a fundamental tool in the evaluation of those discharges in sense to evaluate legal service and to subsidize the licensing of activities to the competent organs. The main object
Publicado em: 2010
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2. Eutrofização e capacidade de carga de fósforo de seis reservatórios a bacia do Rio Seridó, região semi-árida do Estado do RN
A eutrofização é um processo de acúmulo de nutrientes em ambientes aquáticos que tem sido acelerado pelas atividades antrópicas, principalmente as relacionadas com as atividades agropastoris, industriais e a disposição inadequada dos efluentes domésticos. O enriquecimento do ambiente aquático com nutrientes, principalmente o nitrogênio e o fósfor
Publicado em: 2009
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3. Produção de biogás, caracterização e aproveitamento agrícola do biofertilizante obtido na digestão da manipueira / Biogas production, characterization and agricultural use of the biofertilizer obtained in the cassava digestion
During the cassava roots processing, large quantities of waste are generated, among which stands out the manipueira, an effluent that has high polluting load, but on the other hand can be used as fertilizer and energy source. In this context, this study aimed to examine the anaerobic digestion of manipueira process, seeking to quantify the biogas produced it
Publicado em: 2008
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4. Influence of the phreatic aquifer in the nutrient dynamics (nitrogen and phosphorus) in lakes of different hydrodynamic characteristics / Influência do aqüífero freático na dinâmica de nutrientes (nitrogênio e fósforo) em lagoas com diferentes características hidrodinâmicas
The discharge zone of Paranapanema river at Jurumirim reservoir is an area of decreased current velocity associated to a great number of aquatic environments with different hydrodynamic characteristics. To evaluate the influence of the superficial phreatic aquifer in the nutrient dynamics (nitrogen and phosphorus and main cations), three floodplain lakes wit
Publicado em: 2007
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5. Resistance to the Phosphaturic and Calcemic Actions of Parathyroid Hormone during Phosphate Depletion: PREVENTION BY 1,25-DIHYDROXYVITAMIN D3
Recent observations indicate that in thyroparathyroidectomized (TPTX) rats fed a low (0.2 g/100 g) phosphorus diet, the tubular phosphaturic response to parathyroid hormone (PTH) remains markedly blunted even when it is assessed at normal or high plasma concentration and filtered load of inorganic phosphate (Pi). Because 1,25-dihydroxyvitamin D3 [1,25(OH)2D3
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6. A micropuncture study of renal phosphate transport in rats with chronic renal failure and secondary hyperparathyroidism.
Micropuncture studies were carried out in rats to determine changes in tubular transport of phosphate which occur in chronic renal failure and secondary hyperparathyroidism. Rats underwent subtotal nephrectomy (NX) and were fed a low calcium, high phosphorus diet for 3--4 wk. Other groups consisted of normal control animals, normal rats infused with sodium p