Ammonia Nitrogen
Mostrando 1-12 de 649 artigos, teses e dissertações.
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1. Zeolite-SPION Nanocomposite for Ammonium and Heavy Metals Removal from Wastewater
Minimizing the emission of industrial effluents and realizing the recovery/extraction of key elements such as the rare earths from low concentration solutions, or during water decontamination processes, are some of the biggest challenges of modern society. Accordingly, the preparation and characterization of a low cost recyclable and reusable superparamagnet
J. Braz. Chem. Soc.. Publicado em: 2020-11
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2. Evidence for a distinct depression-type schizophrenia: a pilot study
ABSTRACT This study aimed to assess the anaerobic digestion response of laying hen manure with different inclusion levels of biochar in batch reactors as measured by physicochemical parameters, biogas production and digestate quality. Four levels of biochar inclusions (0, 2.5, 5.0 and 7.5%) were tested with 3 replicates each. Twelve two-liter anaerobic batch
Arch. Clin. Psychiatry (São Paulo). Publicado em: 2020-06
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3. RESPONSE FROM ANAEROBIC DIGESTION OF LAYING HEN MANURE WITH BIOCHAR ADDITION
ABSTRACT This study aimed to assess the anaerobic digestion response of laying hen manure with different inclusion levels of biochar in batch reactors as measured by physicochemical parameters, biogas production and digestate quality. Four levels of biochar inclusions (0, 2.5, 5.0 and 7.5%) were tested with 3 replicates each. Twelve two-liter anaerobic batch
Eng. Agríc.. Publicado em: 2020-06
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4. Red clover silage: an alternative for mitigating the impact of nitrogen excretion in ovine production systems
ABSTRACT The objective was to quantify the flow of intestinal nutrients and nitrogen excretion and retention in sheep receiving isoproteic diets. Eight Texel x Lacaune wethers (average body weight = 25±2.5 kg) were fitted with duodenal cannula and housed in metabolic cages. Wethers were assigned to the treatments in a crossover design with two periods of 20
R. Bras. Zootec.. Publicado em: 25/11/2019
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5. In vitro evaluation of the association of chitosan and cashew nut shell liquid as additives for ruminants
RESUMO Objetivou-se avaliar no presente trabalho a digestibilidade in vitro de nutrientes de diferentes dietas com a adição de quitosana (Q), líquido da casca da castanha de caju (LCC) e a associação entre Q e LCC. Os tratamentos utilizados foram constituídos de 4 dietas (relação volumoso:concentrado, 100:0, 50:50, 40:60 e 20:80) associadas com 4 adi
Rev. bras. saúde prod. anim.. Publicado em: 11/11/2019
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6. Methodology for minimum nitrogen compounds removal efficiencies estimation and wastewater treatment systems pre-selection: a watershed approach
RESUMO O nitrogênio constitui importante parâmetro para o controle da poluição hídrica, uma vez que a nitrificação produz consumo de oxigênio do ambiente aquático, além da toxicidade associada à algumas formas de nitrogênio. Este estudo estabeleceu e empregou modelo de otimização visando a determinação simultânea de eficiências mínimas de
RBRH. Publicado em: 17/10/2019
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7. Nitrificação de águas amarelas em leito percolante de areia
RESUMO O esgotamento sanitário ecológico conscientiza a população sobre a importância do reúso da água com maior eficiência e do uso de efluentes de sistemas de tratamento descentralizados. O presente trabalho descreve os resultados da nitrificação de águas amarelas em reator biológico com a utilização de materiais simples, por exemplo, a areia
Eng. Sanit. Ambient.. Publicado em: 26/08/2019
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8. Do live or inactive yeasts improve cattle ruminal environment?
ABSTRACT This research was conducted to investigate the effect of live and inactive sugarcane yeast on beef cattle voluntary intake, apparent digestibility of nutrients, ruminal pH, volatile fatty acids (VFA) concentrations, and ruminal ammonia. Five rumen-cannulated Nellore heifers were distributed in a 5×5 Latin square design, with five experimental perio
R. Bras. Zootec.. Publicado em: 22/07/2019
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9. COINOCULATION WITH Bradyrhizobium AND Trichoderma ALLEVIATES THE EFFECTS OF SALT STRESS IN COWPEA
RESUMO Os efeitos deletérios do estresse salino podem ser mitigados pelo uso de microrganismos benéficos. O objetivo foi avaliar se a inoculação com Bradyrhizobium e Trichoderma asperelloides alivia o estresse salino em feijão-caupi. O experimento foi conduzido em casa de vegetação utilizando vasos preenchidos com solo estéril. As sementes foram seme
Rev. Caatinga. Publicado em: 18/07/2019
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10. Biodegradable oil-based polymeric coatings on urea fertilizer: N release kinetic transformations of urea in soil
ABSTRACT: Polymer coatings are used to control the rate of release of plant available nutrients from fertilizers as well as to reduce nutrient losses such as ammonia (NH3) volatilization. Although the literature presents several examples of materials used to coat urea, little is known about nitrogen (N) release properties such as the mechanism involved and p
Sci. agric. (Piracicaba, Braz.). Publicado em: 01/07/2019
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11. Energy budgets for juvenile Pacific whiteleg shrimp Litopenaeus vannamei fed different diets
Abstract Energy budgets for juvenile Pacific whiteleg shrimp, Litopenaeus vannamei (1.7-4.0 g ) fed with different diets were assessed. The energy partitioning between growth, respiration, ammonia excretion, feces and exuvia was calculated to estimate for total food energy intake. Shrimp oxygen consumption and ammonia excretion were quantified in sealed cham
Braz. j. oceanogr.. Publicado em: 13/06/2019
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12. The culture of Nile tilapia at different salinities using a biofloc system
RESUMO A influência da salinidade da água no cultivo da tilápia do Nilo com bioflocos foi avaliada por meio de indicadores de qualidade da água, desempenho zootécnico e bem-estar animal. Foram adotados cinco tratamentos, envolvendo salinidades (0, 4, 8, 12 e 16 g L-1) com três repetições. As tilápias foram cultivadas por 90 dias e estocadas em tanqu
Rev. Ciênc. Agron.. Publicado em: 2019-06