LECHOS NITRIFICANTES PDF

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Construccion de lecho nitrificante. Construccion de lecho nitrificante. Image may contain: one or more people and outdoor. English (US); Español · Français. Determinación del diámetro óptimo de zeolita para el asentamiento de bacterias nitrificantes en un reactor de lecho fluidizado para eliminar nitrógeno. Lo que se busca es la eliminaciÛn de los nitratos que contaminan las aguas empleando bacterias nitrificantes. El soporte que se emplea para que las bacterias.

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A nitrogen load speed NLS of 0. The higher efficiencies correspond to low flow rates and high organic loads.

Pozo-Antonio, received a Bs. Spanish term or phrase: The final value corresponding to a nitrifjcantes increase till mg. Enviromental Health Perspectives 14pp. The reactor, designed by Navarro and Palladino [1], has proven to be a well suited system for removing of ammonia nitrogen that is present in industrial waste liquids.

Lechos nitrificantes

In this case, the preferred zeolite particle size for the fluidized bed reactor was between 0. Review native language verification applications submitted by your peers.

Wiley- Interscience, New York, Subsequently the aerobic fluidized bed reactor proposed by Navarro and Palladino [1] is built with the 1 mm-diameter zeolite. For the microbial adhesion tests, assemble of 16 mini digesters were used with a volume of mL, for each one of the zeolite diameters Fig. Later on the fourteenth day and for the three cases, a decreasing behaviour was observed until curves reached a nearly constant value at the experiment end.

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Lechos nitrificantes | Spanish to English | Architecture

In this work, we determine the optimal zeolite size for the correct physiological development of nitrifying bacteria to be used in a subsequent aerobic fluidized bed reactor to remove ammonia nitrogen existing nitrifivantes industrial wastewater. These substances can interfere with the cell metabolism, reducing the rate of formation of intermediates compounds [32].

How to cite this article. Most assays were done three times in order to have well defined average values.

L -1 was reached. Further, TSS value increased to mg.

Impacts of climate change on occurrence, toxicity and water quality management. Widespread pollution produces problems such as toxic algae blooms that after intake through food or water can lead to various physiological disorders and symptoms of intoxication [], eutrophication [6,7], acidification of rivers and lakes with low or reduced alkalinity [], direct toxicity of nitrogenous compounds in aquatic animals [13] and adverse effects on human health []. A purge was also available for use if necessary.

Environmental Pollutionpp. The liquid industrial waste had the same composition as that used in the mini-digesters Tables 1 and 2. In the column, the lower part has the input of effluent to be treated and recycled effluent and the top part has the treated effluent outlet.

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This design was chosen in order to prevent particles escaping from the reactor. L -1 was observed. Applied Geochemistry 27, pp.

Elsevier Science 38, pp.

L -1 eleventh day to mg. The building, design and dimensioning of the aerobic fluidized bed reactor have been based on previous works [1, 17]. Different control parameters were measured at the beginning and end of the operation. Nitrification consists in the biological oxidation aerobic process nitrificantws ammoniacal nitrogen in a first step to nitrite and nitfificantes oxidation to nitrate, carried out by autotrophic ammonia-oxidizing bacteria Nitrosomonas and nitrite-oxidizing Nitrobacterrespectively [18].

L -1 that was lecyos on the fourteenth day. Most assays were done three times in order to have well defined average values. Results are shown in Table 4. There is not significant differences in the measured microbial adhesion for the three diameters 0.