Buscar
Mostrando ítems 21-30 de 283
Effect of zinc and benzalkonium chloride on Nitrosomonas communis and potential nitrification in soil
(2001)
A bacterial contact assay is described which uses a chemoautotrophic microorganism, Nitrosomonas communis (strain Nm2) to evaluate the biological effect of contaminated soils. The effects of two toxicants on the ammonium ...
Performance of anoxic -oxic sequencing batch reactor for nitrification and aerobic denitrification
(IntechOpen, 2019)
The biological nitrogen removal (BNR) involves two processes: nitrification and denitrification. Denitrification occurs almost exclusively under facultative anaerobic or microaerophilic conditions; however, aerobic ...
Respirometric techniques for assessment of biological kinetics in constructed wetland
(I W A Publishing, 2014)
Parâmetros operacionais na remoção biológica de nitrogênio de águas por nitrificação e desnitrificação simultâneaOperating parameters on biological nitrogen removal of water by simultaneous nitrification and denitrification
(Assoc Brasileira Engenharia Sanitaria Ambiental, 2016-01)
O nitrogênio é um dos contaminantes mais importantes presentes nas águas residuais. As alternativas tecnológicas mais usuais para o tratamento de águas contendo esse composto lançam mão do ciclo bioquímico do nitrogênio, ...
Inibição da mineralização de compostos nitrogenados de lixiviado de macrófita aquática: Adequação metodológica
(2008-04-01)
This study aimed to establish the adequate concentrations of nitrapyrin for the effective inhibition of oxygen demand required for the oxidation of nitrogen compounds during aerobic mineralization of leachate. The aquatic ...
Inibição da mineralização de compostos nitrogenados de lixiviado de macrófita aquática: Adequação metodológica
(2008-04-01)
This study aimed to establish the adequate concentrations of nitrapyrin for the effective inhibition of oxygen demand required for the oxidation of nitrogen compounds during aerobic mineralization of leachate. The aquatic ...
Humic fractions of forest, pasture and maize crop soils resulting from microbial activity
(Sociedade Brasileira de Microbiologia, 2014-09-01)
Humic substances result from the degradation of biopolymers of organic residues in the soil due to microbial activity. The objective of this study was to evaluate the influence of three different ecosystems: forest, pasture ...