Wastewater Microbiology

Bitton, Gabriel

doi:10.1002/0471717967

Cited by 370 publications

(259 citation statements)

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“…0.5 ml was orally administered to the rats and watched for symptom of diarrhea. The dilution that established the infection in the rat which showed by the symptoms was used as infectivity dosage for the rats throughout the infection (Bitton, 2005;Quinn et al, 2004). Overnight culture (24 h at 37 o C) in brain heart infusion broth dilution of 0.5ml was given with a gavages stomach tube to each rat of infected groups.…”

Section: Inducing Infection (Diarrhea)mentioning

confidence: 99%

In vitro and in vivo Antibacterial Activity of Ethanolic Extract of Sweet Basil (Ocimum basilicum L.) Leaves against Escherichia coli in Experimentally Infected Rats

Ibrahim¹

2015

Adv. Anim. Vet. Sci.

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| The present study was carried out to investigate the antibacterial activity of ethanol extract of Ocimum basilicum against infectious diarrhea caused by E. coli. Two experiments were performed in this present study; the first one is in vitro antibacterial activity of Ocimum basilicum ethanolic extract. The second experiment included study in vivo antibacterial activity of the extract after inducing diarrhea with oral pathogenic E. coli in five rats groups (eight rats of each). The results of the in vitro antibacterial study showed that E. coli was more sensitive to ethanolic extract of O.B in comparison with Gentamicin and Amikacin and it was resistant to the metronidazole, but E. coli was more sensitive to Trimethoprim/Sulfamethoxazole. Two doses of O.B extract 100, 200 mg/kg. BW were used to treat this infection for fourteen days orally. The results of the in vivo study indicated that doses of 200 mg/kg BW O.B extract and 6.85 mg/kg. BW of Trimethoprim/Sulfamethoxazole were succeeded in returning the rectal E. coli count of infected rats to normal values before inducing infection in both kinds of therapy at the first week. Food intake, water intake and body weight significantly (P < 0.05) increased in comparison with others doses or groups. From the results obtained, it could be concluded that ethanolic extract of O.B leaves at dose 200 mg/kg. BW was more effective and safe in comparison with antibacterial agent and other O.B dose, this anti-diarrheal activity of O.B ethanolic extract may be due to its constituents of secondary metabolites that are responsible for the antibacterial activity with different mechanisms of action.

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Section: Inducing Infection (Diarrhea)mentioning

confidence: 99%

In vitro and in vivo Antibacterial Activity of Ethanolic Extract of Sweet Basil (Ocimum basilicum L.) Leaves against Escherichia coli in Experimentally Infected Rats

Ibrahim¹

2015

Adv. Anim. Vet. Sci.

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“…These organisms also synthesize a number of enzymes, which contribute to the decolorization process through extracellular or intracellular enzymatic pathways .The enzymes produced by white-rot fungi are regulated by the depletion of nutrients, mainly nitrogen that has stronger effect to this process. Nitrogen is an essential component to the cells as it is present in their composition and constituents (Ben Hamman 1997;Bitton 2005). Phanerochaete chrysosporium is the most common fungus associated with microbial degradation (Gomma et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Azo dye degradation by Phanerochaete chrysosporium in the medium enriched with nitrogen in the presence of primary co-substrate

Andrade

Silva

Siqueira

et al. 2013

Braz. arch. biol. technol.

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“…For the biological aerobic treatment and the operation of activated sludge systems, the C:N:P ratio is important. A ratio of 100:15-10:1 is often recommended [13,14].…”

Section: Introductionmentioning

confidence: 99%

Wastewater treatment in petroleum activities: example of “SEWAGE” unit in the BG Tunisia Hannibal plant

Ghnainia¹,

Eloussaief

Zouari³

et al. 2016

Appl Petrochem Res

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This paper provides a detailed analysis of the sewage system procedure, as well as the occurring problems during the operation of the system and the required corrective actions that should be taken. In the Hannibal gas plant, the used water is exploited from a local deep well drilled in the plant. However, before being used in both of gas process and domestic activities, this water is treated in a specified unit called ''Metito Unit'' to obtain an overpurified water that can meet with the chemical requirements of the oil/gas process and the health and environment standards. After several steps of the process, the polluted wastewater resulting from several activities within the plant is treated in the ''Sewage Unit''. This unit decontaminates wastewater from polluting factors, using the ''Extended Aeration Method''. We have shown that in spite of the efficient methods used in the sewage system procedure, several problems can occur during the operating of the system such as hydraulic overloading, high SVI, high Fm ratio, which causes high level of organic pollutants (BOD5 = 42 mg/l), chemical pollution (COD = 85 mg/l), high level of pH 8, chloride (1900 mg/ l), and iron (8300 mg/l). We suggest that the quality of the treated wastewater should be improved by the addition of other processes such as constructed wetland process, photo-catalytic oxidation technique which is one of the most efficient methods of wastewater treatment, to produce water quality that is very similar to that of the natural waters.Résumé Généralement, de très importantes quantités d'eau sont utilisées dans le secteur d'activités pétrolières pour les procédés du raffinage du pétrole et/ou du gaz ainsi que pour les usages domestiques dans la raffinerie. Les eaux usées qui résultent après les dernières étapes du traitement du pétrole ou du gaz seront rejetées dans la nature après avoir subir un traitement d'épuration pour être compatible avec les normes standard de préservation de l'environnement. Dans ce contexte, nous nous proposons d'étudier l'exemple de l'unité de traitement des eaux usées (sewage unit) dans la raffinerie Hannibal de traitement du gaz naturel de la compagnie BG Tunisia. Dans le chantier Hannibal, situé à 23 km au sud de Sfax, les eaux utilisées sont explorées d'un puits local creusé dans le chantier lui même, ces eaux sont d'abord traitées dans une station d'épuration appelée Metito unit, et ce avant d'être utilisées dans les différentes unités du chantier et les différentes activités domestiques. Après cet usage, les eaux résiduelles sont polluées et sont pour ce fait traitées dans une unité spécifique appelée Sewage Unit dans laquelle les eaux usées passent par des opérations physiques, chimiques et biologiques permettant leur décontamination autant que possible des facteurs polluants. La technologie appliquée dans l'unité de traitement des eaux usées ''sewage unit'' est basée sur la méthode dite ''méthode d'aération poussée''. Cette méthode consiste en quatre opérations principales à savoir: le criblage ou dépista...

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Wastewater Microbiology

Cited by 370 publications

References 0 publications

In vitro and in vivo Antibacterial Activity of Ethanolic Extract of Sweet Basil (Ocimum basilicum L.) Leaves against Escherichia coli in Experimentally Infected Rats

In vitro and in vivo Antibacterial Activity of Ethanolic Extract of Sweet Basil (Ocimum basilicum L.) Leaves against Escherichia coli in Experimentally Infected Rats

Azo dye degradation by Phanerochaete chrysosporium in the medium enriched with nitrogen in the presence of primary co-substrate

Wastewater treatment in petroleum activities: example of “SEWAGE” unit in the BG Tunisia Hannibal plant

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