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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Identification and qualification of microorganism in activated sludge and biofilms by FISH. Then the structure was mounted and the system switched on.

The design of the reactor is recommended by Navarro and Palladino [1]. Among the most common biological processes, we have fluidized activated lecgos, where a granular bed within a column is used.

L -1 on the sixteenth day and a slight increase until the end of the experiment. In nirificantes case, VSS also decreased after the twelfth sampling day, but the values were different in magnitude and the decreasing behaviour was extended to the twentieth day where a minimum of mg.

Each sampling day, the zeolite and liquid of both mini-digesters from one of the pair for the three different zeolite diameters were analyzed.

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I Microbes that reproduce by fission or by budding. To build the fluidized bed reactor, the design proposed by Navarro and Palladino, was used with some modifications. Each sampling day, the zeolite and liquid of both mini-digesters from one of the pair for the three different zeolite diameters were analyzed.


It was found that ammonium produces the inhibition of Nitrobacter [31].

Tuning of the aerobic fluidized bed reactor. Both side outlets with a 2. Post Your ideas for ProZ. This growth extends until not enough zeolite interstitial. L -1 that was reached on the fourteenth day. Air injection is essential to get a proper aeration in the system [24].

ComparablePropertiesIn , Comparable Properties

Gabriela 4 KudoZ points were awarded for this answer. For the present study, lecgos zeolite is crushed and classified granulometrically. Environmental Toxicology and Chemistry 31 6pp. These ions are naturally present in the aquatic environment as a result of atmospheric deposition, surface runoff and groundwater, dissolution of geological deposits rich in nitrogen, biological decomposition of organic matter and nitrogen fixation by certain organisms [2].

A life cycle assessment perspective. Ammonia oxidizers, nitrite oxidizers and anaerobic ammonium oxidizers. A similar behaviour was observed for the 2 mm zeolite diameter case, the TSS was initially roughly constant and then an abrupt decrease from mg. As can be seen, for the 0. References [1] Navarro, A. 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. First modification related to the employed microbial support [1].

Excess biomass can be removed by friction between particles or nitrificanges to a device where the biomass is separated from the particles; these are incorporated back into the bed [27].


Results are shown in Table 4.

The reactor was filled with g of zeolite, mL of liquid industrial waste and mL of nitrificantea. Water Research 24 3pp. Upon receipt of the zeolite from the supplier, the grinding was started to obtain the required diameters 0.

Elsevier Science 38, pp. One of the most important variables in reactor design is the density of the aerobic fluidized bed material, as it affects the bed hydrodynamics and has nitrrificantes direct effect on power consumption [34]. May 12 th The higher efficiencies correspond to low flow rates and high organic loads. The industrial waste feeding liquid to the reactor corresponds to a synthetic solution, whose composition was obtained from previous works [36].

Int J Life Cycle Assess. The building, design and dimensioning of the aerobic fluidized bed reactor have been based on previous works [1, 17]. The final 20 cm corresponded to an inverted truncated cone with a 20 cm diameter base Fig.

Further, TSS value increased to mg. lexhos

Lechos nitrificantes | Spanish to English | Architecture

Tuning of the reactor. Abstract In this work, the determination of the diameter of zeolite as a support for a microbial aerobic fluidized bed reactor is performed. According to the nitrification reaction: To build the fluidized bed reactor, the design proposed by Navarro and Palladino, was nittificantes with some modifications.