scholarly journals Genetic characterization of a novel sequence type of multidrug-resistant Citrobacter freundii strain recovered from wastewater treatment plant

2019 ◽  
Vol Volume 12 ◽  
pp. 2775-2779 ◽  
Author(s):  
Xiawei Jiang ◽  
Xinjie Cui ◽  
Wenhong Liu ◽  
Hao Xu ◽  
Beiwen Zheng
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Genetic Characterization ◽  
Treatment Plant ◽  
Multidrug Resistant ◽  
Sequence Type ◽  
Citrobacter Freundii

scholarly journals Isolation and characterization of organic matter-degrading bacteria from coking wastewater treatment plant

2018 ◽  
Vol 78 (7) ◽  
pp. 1517-1524 ◽  
Author(s):  
Riqiang Li ◽  
Jianxing Wang ◽  
Hongjiao Li
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Removal Rate ◽  
Treatment Plant ◽  
Coking Wastewater ◽  
Naphthalene Degradation ◽  
Isolation And Characterization ◽  
Degrading Bacteria

Abstract As a step toward bioaugmentation of coking wastewater treatment 45 bacteria strains were isolated from the activated sludge of a coking wastewater treatment plant (WWTP). Three strains identified as Bacillus cereus, Pseudomonas synxantha, and Pseudomonas pseudoaligenes exhibited high dehydrogenase activity which indicates a strong ability to degrade organic matter. Subsequently all three strains showed high naphthalene degradation abilities. Naphthalene is a refractory compound often found in coking wastewater. For B. cereus and P. synxantha the maximum naphthalene removal rates were 60.4% and 79.8%, respectively, at an initial naphthalene concentration of 80 mg/L, temperature of 30 °C, pH of 7, a bacteria concentration of 15% (V/V), and shaking speed of 160 r/min. For P. pseudoaligenes, the maximum naphthalene removal rate was 77.4% under similar conditions but at 35 °C.

scholarly journals Rheological Characterization of Sludge Coming from a Wastewater Treatment Plant

2010 ◽  
Vol 6 (4) ◽  
pp. 329-337 ◽  
Author(s):  
Daniel Novarino ◽  
Ezio Santagata ◽  
Davide Dalmazzo ◽  
Mariachiara Zanetti
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Rheological Characterization

scholarly journals Sewage sludge as a source of triclosan-resistant bacteria

2019 ◽  
Vol 12 (1) ◽  
pp. 34-40
Author(s):  
Kristína Lépesová ◽  
Monika Krahulcová ◽  
Tomáš Mackuľak ◽  
Lucia Bírošová
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Coliform Bacteria ◽  
Resistant Bacteria ◽  
Citrobacter Freundii ◽  
Sludge Sample ◽  
Three Samples

Abstract Subinhibitory concentrations of antibiotics and biocides in wastewaters and sewage sludge have a great impact on the development of antibiotic resistance and its spread among bacteria. The aim of this work was to determine the occurrence of coliform bacteria and enterococci resistant to biocide triclosan in samples of sewage sludge. Subsequently, isolated strains of coliform bacteria were identified and characterized in terms of their antibiotic susceptibility and ability to form a biofilm. Occurrence of the studied bacteria was monitored in three samples of stabilized sludge from three different wastewater treatment plants (Vrakuňa, Petržalka, and Senec). The number of triclosan-resistant coliforms was the highest in the sludge sample from the wastewater treatment plant in Senec and the lowest in the sludge sample from the wastewater treatment plant in Petržalka. Triclosan-resistant Enterococcus spp. were not found in any sample of stabilized sludge. Most isolates were identified as Citrobacter freundii and Serratia spp. Triclosan-resistant isolates showed also resistance to antibiotics and the majority of them were strong biofilm producers.

scholarly journals Characterization of cefotaxime-resistant Escherichia coli isolated from wastewater treatment plant in Daegu

2014 ◽  
Vol 37 (4) ◽  
pp. 225-231
Author(s):  
Hwan-Deuk Kim ◽  
Dae-Hyun Park ◽  
Mi-Ree Lee ◽  
Eun-Jeong Kim ◽  
Jae-Keun Cho
Keyword(s):  
Escherichia Coli ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant
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