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LECHOS NITRIFICANTES PDF

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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Lechos nitrificantes | Spanish to English | Architecture

The liquid industrial waste had nitrificanhes same composition as that used in the mini-digesters Tables 1 and 2. You can request verification for native languages by completing a simple application that takes only a couple of minutes.

L -1 eleventh day to mg. According to the nitrification reaction: Environmental Pollutionpp. Received in revised form: The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases.

Environmental International 32, pp. The initial region of the adhesion increase, shown in Fig. London, United Kingdom, Ed. M and Heijnen, J.

Lechos nitrificantes

The plate that support the filler was composed of a stainless steel mesh placed 10 cm above the base. The final value corresponding to a drastic increase till mg. For these bacteria to develop physiologically, a proper support material should be chosen to take into account the biological process itself, nitruficantes equipment size and experimental conditions that bacteria will find.

The final 20 cm corresponded to an inverted truncated cone with a 20 cm diameter base Fig. A first run was performed with water to verify the state of the seals and the general operation of each system component Fig. Above these two inlets two cross-placed diffusers ensured an even air distribution. Aeration equipment is critical for this type of reactors as to achieve the expected efficiency a proper air distribution is needed.

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United State of America, pp.

Taller de LECHO Nitrificante

Finally, in the case of the zeolite with 1 mm diameter, VSS values showed a continuous fluctuation along the whole experiment time, with a minimum of mg. A similar evolution was observed in the 2 mm zeolite diameter case. Most of the materials, such as sand and clay with irregular shapes and sizes, were chosen to take into account that they were cheap and readily available. Each sampling day, the zeolite and liquid of both mini-digesters from one of the pair for the three different zeolite diameters were analyzed.

The whole experiment ran for three weeks. This design was chosen in order to prevent particles escaping from the reactor. To avoid inhibition the lexhos value must be kept in the range from 7. Determination of the zeolite optimal diameter for the settlement of njtrificantes bacteria in an aerobic bed fluidized reactor to eliminate ammonia nitrogen.

On the twelfth day, VSS began to decrease to a minimum of mg.

The sieving process to obtain the 1 mm diameter zeolite was shown to be the more efficient. The treatment system of liquid effluents designed by Navarro and Palladino was tested, changing the activated carbon by zeolite as a microbial support. Enviromental Health Perspectives 14pp. Crushing and sieve analysis Lechls shown in Table 5after crushing and sieving enough zeolite for each of the expected sizes 0.

In this work, the zeolite used had a density of 2 g. Mini-digesters were grouped in pairs, for each zeolite diameter. Elsevier Science 38, pp. Unlike both Volatile and Total Suspended Solids, there is an initial increasing trend of the adhesion, for the first days of the experiment, that finished on the eleventh day for the 1mm zeolite diameter of 1 mm and the thirteenth for 0.

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The liquid industrial waste had the same composition as that used in the mini-digesters Tables 1 and 2. Therefore, concentration of dissolved oxygen in water must be kept around 2 to 3 mg. American Public Health Association. Therefore, concentration of dissolved oxygen in water must be kept around 2 to 3 mg. There is not significant differences lecho the measured microbial adhesion for the three diameters 0.

View Ideas submitted by the community. L -1 due to the above mentioned cryptic growth stage.

L -1 that was reached on the fourteenth day. This decrease was followed by a slight increase following days. Environmental Pollutionpp. As a general fact, one can conclude that the zeolite was a good support for microorganism population, in this case of nitrifying bacteria for the removal of nitrogen. The extracted zeolite was placed on a filter paper on a capsule and introduced into a hot oven for six hours to ensure complete drying of the support.

Term search All of ProZ. The diameter of the zeolite used as microbial support was the one that corresponds to the best adherence results from the previous stage. As they affirmed, with higher COD Tentthe degradation efficiency is better. Once the mini-digesters were filled and the aeration pumps connected, the system was allowed to evolve for five days.