Trickling Filter
Mostrando 1-12 de 20 artigos, teses e dissertações.
-
1. Tratamento combinado de lixiviado de aterro sanitário e lodo de fossa séptica com emprego de geobag: estudo de laboratório e de campo
RESUMO Neste trabalho, são apresentados os resultados do desempenho de dois sistemas de tratamento combinado de lixiviado de aterros sanitários e lodos de fossas. Na escala de laboratório, empregou-se um geobag de pequenas dimensões e um filtro biológico de percolação a jusante dele. Na escala real, investigou-se o desempenho de uma unidade de tratame
Eng. Sanit. Ambient.. Publicado em: 20/12/2019
-
2. Pós-tratamento de efluente de lagoa facultativa visando à remoção de nitrogênio amoniacal. / Post treatment of facultative pond effluent aiming removal of ammonia nitrogen.
Discute o pós-tratamento de efluente de lagoas facultativas visando à remoção de nitrogênio amoniacal. Para isso, foram utilizadas unidades terciárias em escala piloto. A escolha do tipo de unidades para o pós-tratamento do efluente levou em consideração a questão do baixo custo e simplicidade de operação. Desta forma, para o estudo, fez-se opç�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2011
-
3. Modelling the steady state and dynamic conditions of a biotrickling filter treating styrene and acetone in air
The aim of this work was the study a trickling biofilter, where water was circulated throughout the bed. In the first steady state experiment, the packing materials used were 25mm Pall rings. The airflow rate was increased gradually and the concentration of styrene in the air stream was held constant. In the second experiment, 15mm Pall rings were used. In t
Brazilian Archives of Biology and Technology. Publicado em: 2010-10
-
4. Caracterização de contaminantes presentes em sistemas de tratamento de esgotos, por cromatografia líquida acoplada à espectrometria de massas tandem em alta resolução
This work shows results on the characterization, by liquid chromatography coupled to high resolution tandem mass spectrometry (LC-IT-TOF-MS) with electrospray ionization, of organic compounds present in raw and treated effluents from a combined sewage treatment systems (upflow anaerobic sludge blanket-trickling filter). The sewage samples were prepared by C1
Química Nova. Publicado em: 2010
-
5. Fast-track evaluation of a compact chemically enhanced-trickling filter system
With the more Stringent legislations pertinent to the management of industrial effluents, it deemed necessary to develop an efficient compact, low cost treatment system that complies with applicable laws. Numerous versions of chemically enhanced - biological treatment schemes are commercially established. Chemically enhanced-trickling filter has been perceiv
Brazilian Journal of Chemical Engineering. Publicado em: 2007-06
-
6. Nitrificação de efluente de reator anaeróbio compartimentado em filtros percoladores com a utilização da serragem de couro do tipo wet blue como meio suporte / Nitrification of anaerobic baffed reactor effluent into trickling filters using wet blue leather sawing as a filter packing
The aim of the work is to promote the ammoniacal nitrogen removal from anaerobic baffed reactor effluent using aerobic trickling filters, through the nitrification process. The research was developed in two phases; firstly the leather sawing was prepared through sieving and washing, later the domestic sewage was applied into four tricking filters. The F1 and
Publicado em: 2006
-
7. A decision making model for choosing sewage treatment systems / Modelo para tomada de decisão na escolha de sistema de tratamento de esgoto sanitário
The selection of the wastewater treatment system to be installed in a city can be a difficult decision, once several variables interfere in its cost and in its environmental quality. This study intends to show the possibility of using techniques of decision analysis to select the wastewater treatment system in an ecological and economical way, as decision tr
Publicado em: 2004
-
8. Design and performance of a trickling air biofilter for chlorobenzene and o-dichlorobenzene vapors.
From contaminated industrial sludge, two stable multistrain microbial enrichments (consortia) that were capable of rapidly utilizing chlorobenzene and o-dichlorobenzene, respectively, were obtained. These consortia were characterized as to their species composition, tolerance range, and activity maxima in order to establish and maintain the required operatio
-
9. Airborne coliphages from wastewater treatment facilities.
The emission (from wastewater treatment plants) of airborne coliphages that form plaques on two strains of Escherichia coli was investigated. Two activated-sludge and two trickling-filter plants were studied. Field sampling procedures used large-volume air samplers with recirculation devices. Coliphages were enumerated by a most-probable-number (MPN) procedu
-
10. Occurrence of Cytophagas in Sewage Plants
With the application of plate count methods and of the KOH-flexirubin test, bacteria belonging to the Cytophaga group were proved to occur regularly in samples from biological sewage treatment facilities. Generally, the percentage of Cytophaga colonies of the total heterotrophic colonies was lowest in the inflow sewage water as compared with the values found
-
11. Removal of Enteroviruses from Sewage by Bench-Scale Rotary-Tube Trickling Filters
The efficacy of a rotary-tube type of trickling filter for removing coxsackievirus A9, poliovirus 1, and echovirus 12 suspended in raw settled sewage was investigated. At filtration rates equivalent to about 10 MGD (million gallons per day)/acre (ca. 3,785 m3/day per acre), the filters removed 95% of the poliovirus, 83% of echovirus 12, and 94% of coxsackiev
-
12. Retrofitting existing chemical scrubbers to biotrickling filters for H2S emission control
Biological treatment is a promising alternative to conventional air-pollution control methods, but thus far biotreatment processes for odor control have always required much larger reactor volumes than chemical scrubbers. We converted an existing full-scale chemical scrubber to a biological trickling filter and showed that effective treatment of hydrogen
National Academy of Sciences.