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https://www.readbyqxmd.com/read/27903060/satellite-imagery-technology-in-public-health-analysis-of-site-catchment-areas-for-assessment-of-poliovirus-circulation-in-nigeria-and-niger
#1
Marina Takane, Shizu Yabe, Yumiko Tateshita, Yusuke Kobayashi, Akihiko Hino, Kazuo Isono, Hiromasa Okayasu, Ousmane M Diop, Takeo Tadono
Environmental surveillance supplements the surveillance of acute flaccid paralysis by monitoring wastewater for poliovirus circulation. Building on previous work, we analysed wastewater flow to optimise selection and placement of sampling sites with higher digital surface model (DSM) resolution. The newly developed 5-m mesh DSM from the panchromatic, remote-sensing instruments for stereo mapping on-board the Japanese advanced land observing satellite was used to estimate catchment areas and flow of sewage water based on terrain topography...
November 21, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27902225/desulfobulbus-oligotrophicus-sp-nov-a-novel-sulfate-reducing-and-propionate-oxidizing-bacterium-isolated-from-a-municipal-anaerobic-sewage-sludge-digester
#2
Abdelaziz El Houari, Magali Ranchou-Peyruse, Anthony Ranchou-Peyruse, Adrien Dakdaki, Marion Guignard, Lahcen Idouhammou, Rhizlane Bennisse, Radia Bouterfass, Rémy Guyoneaud, Abdel-Illah Qatibi
A novel, mesophilic, strictly anaerobic, sulfate-reducing and propionate-oxidizing bacterium, strain Prop6T, was enriched and isolated from a municipal anaerobic sewage sludge digester. Cells were Gram-negative, catalase-positive, oval rods, motile by means of amphitrichous flagella, non-spore-forming and contained menaquinone MK-5(H2) as the major respiratory quinone. The genomic DNA G+C content was 51.7 mol%. The optimal NaCl concentration, temperature and pH were 2-5 g l-1, 35°C and 7.6, respectively. Strain Prop6T could only oxidize propionate, lactate and pyruvate (weakly) with sulfate, sulfite or thiosulfate, mainly to acetate...
October 27, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27900459/isolation-characterization-and-bioinformatic-analyses-of-lytic-salmonella-enteritidis-phages-and-tests-of-their-antibacterial-activity-in-food
#3
Han Han, Xiaoting Wei, Yi Wei, Xiufeng Zhang, Xuemin Li, Jinzhong Jiang, Ran Wang
Salmonella Enteritidis remains a major threat for food safety. To take efforts to develop phage-based biocontrol for S. Enteritidis contamination in food, in this study, the phages against S. Enteritidis were isolated from sewage samples, characterized by host range assays, DNA restriction enzyme pattern analyses, and transmission electron microscope observations, and tested for antibacterial activity in food; some potent phages were further characterized by bioinformatic analyses. Results showed that based on the plaque quality and host range, seven lytic phages targeting S...
November 30, 2016: Current Microbiology
https://www.readbyqxmd.com/read/27898783/production-of-biomass-crops-using-biowastes-on-low-fertility-soil-2-effect-of-biowastes-on-nitrogen-transformation-processes
#4
J Esperschuetz, S Bulman, C Anderson, O Lense, J Horswell, N Dickinson, B H Robinson
Increasing production of biowastes, particularly biosolids (sewage sludge), requires sustainable management strategies for their disposal. Biosolids can contain high concentrations of nutrients; hence, land application can have positive effects on plant growth and soil fertility, especially when applied to degraded soils. However, high rates of biosolids application may result in excessive nitrogen (N) leaching, which can be mitigated by blending biosolids with other biowastes, such as sawdust. We aimed to determine the effects of biosolids and sawdust on growth and N uptake by sorghum, rapeseed, and ryegrass as well as N losses via leaching...
November 2016: Journal of Environmental Quality
https://www.readbyqxmd.com/read/27898328/fate-of-new-three-anti-influenza-drugs-and-one-prodrug-in-the-water-environment
#5
Takashi Azuma, Mao Ishida, Kanae Hisamatsu, Ayami Yunoki, Kana Otomo, Mari Kunitou, Mai Shimizu, Kaori Hosomaru, Shiori Mikata, Yoshiki Mino
We evaluated the environmental fate of new three anti-influenza drugs, favipiravir (FAV), peramivir (PER), and laninamivir (LAN), and an active prodrug of LAN, laninamivir octanoate (LANO), in comparison with four conventional drugs, oseltamivir (OS), oseltamivir carboxylate (OC), amantadine (AMN), and zanamivir (ZAN) by photodegradation, biodegradation, and sorption to river sediments. In addition, we conducted 9-month survey of urban rivers in the Yodo River basin from 2015 to 2016 (including the influenza season) to investigate the current status of occurrence of these drugs in the river environment...
November 26, 2016: Chemosphere
https://www.readbyqxmd.com/read/27898319/assessing-the-usefulness-of-clostridia-spores-for-evaluating-sewage-sludge-hygienization
#6
Julia Martín-Díaz, Maria Ruiz-Hernando, Sergi Astals, Francisco Lucena
The capability of clostridia spores to act as pathogen indicators in sewage sludge treatment was investigated. Sulfite-reducing clostridia and E. coli levels were monitored during waste activated sludge pre-treatments (alkali and ultrasound) and its subsequent mesophilic anaerobic digestion. E. coli was maintained or reduced depending on treatment type and intensity. However, alkali pre-treatment (35.3gNaOH/kgTS) by itself and alkali (157gNaOH/kgTS) and ultrasound (27,000kJ/kgTS) pre-treatments followed by anaerobic digestion provoked reproducible clostridia increases...
November 22, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27896616/seasonal-effects-of-pre-aeration-on-microbial-processes-for-nitrogen-removal-in-constructed-wetlands
#7
Ling Wang, Tian Li
Seasonal effects of pre-aeration on microbial nitrogen performance in constructed wetlands (CWs) involved with anaerobic ammonium oxidation (anammox) process were investigated in this study. Slow natural re-aeration rate was the inhibiting factor for total nitrogen removal in CW without pre-aeration, and partial nitrification was the main way for nitrite generation. Besides partial nitrification, pre-aeration provided nitrite generation in CWs with an alternative way: nitrate reduction. Advantage of pre-aeration of influent was much different under various temperature ranges...
November 29, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27896609/moral-polemics-of-far-reaching-economic-consequences-of-antibiotics-overuse
#8
Marek Vochozka, Anna Maroušková, Petr Šuleř
The unethical overuse of antibiotics to seek to achieve a shortening of the treatment period raises the cost of health services and poses a threat to humanity due to the gradual development of antibiotic resistance. Other consequences of our modern passion for antibiotics have appeared. Small concentrations of antibiotic residues in sewage waters slow down the metabolism of anaerobic microorganism thereby reducing the overall performance of the anaerobic fermentation used to detoxify and digest sewage and other collected organic wastes...
November 28, 2016: Science and Engineering Ethics
https://www.readbyqxmd.com/read/27895627/distribution-and-classification-of-serine-%C3%AE-lactamases-in-brazilian-hospital-sewage-and-other-environmental-metagenomes-deposited-in-public-databases
#9
Adriana M Fróes, Fábio F da Mota, Rafael R C Cuadrat, Alberto M R Dávila
β-lactam is the most used antibiotic class in the clinical area and it acts on blocking the bacteria cell wall synthesis, causing cell death. However, some bacteria have evolved resistance to these antibiotics mainly due the production of enzymes known as β-lactamases. Hospital sewage is an important source of dispersion of multidrug-resistant bacteria in rivers and oceans. In this work, we used next-generation DNA sequencing to explore the diversity and dissemination of serine β-lactamases in two hospital sewage from Rio de Janeiro, Brazil (South Zone, SZ and North Zone, NZ), presenting different profiles, and to compare them with public environmental data available...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27895625/evaluation-of-virulence-factors-in-vitro-resistance-to-osmotic-stress-and-antifungal-susceptibility-of-candida-tropicalis-isolated-from-the-coastal-environment-of-northeast-brazil
#10
Diana L Zuza-Alves, Sayama S T Q de Medeiros, Luanda B F C de Souza, Walicyranison P Silva-Rocha, Elaine C Francisco, Maria C B de Araújo, Reginaldo G Lima-Neto, Rejane P Neves, Analy S de Azevedo Melo, Guilherme M Chaves
Several studies have been developed regarding human health risks associated with the recreational use of beaches contaminated with domestic sewage. These wastes contain various micro-organisms, including Candida tropicalis. In this context, the objective of this study was to characterize C. tropicalis isolates from the sandy beach of Ponta Negra, Natal, Rio Grande do Norte, Brazil, regarding the expression of in vitro virulence factors, adaptation to osmotic stress and susceptibility to antifungal drugs. We analyzed 62 environmental isolates and observed a great variation among them for the various virulence factors evaluated...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27895009/an-incp-plasmid-carrying-the-colistin-resistance-gene-mcr-1-in-klebsiella-pneumoniae-from-hospital-sewage
#11
Feifei Zhao, Yu Feng, Xiaoju Lü, Alan McNally, Zhiyong Zong
A Klebsiella pneumoniae strain of ST313 recovered from hospital sewage was found to carry the plasmid-borne colistin resistance gene mcr-1, which was bracketed by two copies of the insertion sequence ISApl1 on a 57-kb self-transmissible IncP type plasmid of a new IncP-1 clade. The carriage of mcr-1 on a self-transmissible broad-host-range plasmid highlights that mcr-1 has the potential to be spread beyond the Enterobacteriaceae.
November 28, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27894042/investigation-of-co-combustion-characteristics-of-sewage-sludge-and-coffee-grounds-mixtures-using-thermogravimetric-analysis-coupled-to-artificial-neural-networks-modeling
#12
Jiacong Chen, Jingyong Liu, Yao He, Limao Huang, Shuiyu Sun, Jian Sun, KenLin Chang, Jiahong Kuo, Shaosong Huang, Xunan Ning
Artificial neural network (ANN) modeling was applied to thermal data obtained by non-isothermal thermogravimetric analysis (TGA) from room temperature to 1000°C at three different heating rates in air to predict the TG curves of sewage sludge (SS) and coffee grounds (CG) mixtures. A good agreement between experimental and predicted data verified the accuracy of the ANN approach. The results of co-combustion showed that there were interactions between SS and CG, and the impacts were mostly positive. With the addition of CG, the mass loss rate and the reactivity of SS were increased while charring was reduced...
November 18, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27894039/biochar-amendment-for-integrated-composting-and-vermicomposting-of-sewage-sludge-the-effect-of-biochar-on-the-activity-of-eisenia-fetida-and-the-obtained-vermicompost
#13
Krystyna Malińska, Małgorzata Golańska, Raraela Caceres, Agnieszka Rorat, Patryk Weisser, Ewelina Ślęzak
Sewage sludge derived biochar (SSDB) was used as a supplementary material for municipal sewage sludge (SS) and wood chips mixtures (WC) treated by combined composting and vermicomposting. SSDB added to the mixture before composting resulted in significantly higher reproduction rate: on week 4 the number of cocoons increased by 213% when compared to the mixture with no biochar. On week 6 the average number of juveniles increased 11-fold in the mixture with biochar added before composting and 5-fold in the mixtures with biochar added after composting when compared to the mixture with no biochar...
November 15, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27892814/a-new-route-of-bioaugmentation-by-allochthonous-and-autochthonous-through-biofilm-bacteria-for-scod-removal-of-old-leachate
#14
Rashid Alijani Ardeshir, Sara Rastgar, Majid Peyravi, Mohsen Jahanshahi, Ali Shokuhi Rad
Landfill leachate contains environmental pollutants that are generally resistant to biodegradation. In this study, indigenous and exogenous bacteria in leachate were acclimated in both biofilm and suspension forms to increase the removal of SCOD (soluble chemical oxygen demand). The bacteria from the leachate and sewage were acclimated to gradually increasing leachate concentration prepared using a reverse osmosis membrane over 28 days. The SCOD removal was measured aerobically or nominally anaerobically. Biofilms were prepared using different carrier media (glass, rubber, and plastic)...
November 28, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27890586/exploring-the-contribution-of-bacteriophages-to-antibiotic-resistance
#15
Itziar Lekunberri, Jèssica Subirats, Carles M Borrego, José Luis Balcázar
Bacteriophages (phages) are the most abundant and diverse biological entities in our planet. They infect susceptible bacterial hosts into which they either multiply or persist. In the latter case, phages can confer new functions to their hosts as a result of gene transfer, thus contributing to their adaptation (short-term) and evolution (long-term). In this regard, the role of phages on the dissemination of antibiotic resistance genes (ARGs) among bacterial hosts in natural environments has not yet been clearly resolved...
November 24, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27889074/compositional-shifts-in-bacterial-communities-associated-with-the-coral-palythoa-caribaeorum-due-to-anthropogenic-effects
#16
Gustavo Vasconcelos Bastos Paulino, Leonardo Broetto, Victor Satler Pylro, Melissa Fontes Landell
Corals harbor abundant and diverse prokaryotic communities that may be strongly influenced by human activities, which in turn compromise the normal functioning of coral species and predispose them to opportunistic infections. In this study, we investigated the effect of sewage dumping on the bacterial communities associated with the soft coral Palythoa caribaeorum at two sites in the Brazilian coast. We observed a dominance of bacterial species classified as human pathogens at sites exposed to untreated sewage discharge...
November 23, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27886033/efficacy-of-lytic-staphylococcus-aureus-bacteriophage-against-multidrug-resistant-staphylococcus-aureus-in-mice
#17
Joseph Michael Ochieng' Oduor, Nyamongo Onkoba, Fredrick Maloba, Washingtone Ouma Arodi, Atunga Nyachieo
INTRODUCTION: The use of bacteriophages as an alternative treatment method against multidrug-resistant bacteria has not been explored in Kenya. This study sought to determine the efficacy of environmentally obtained lytic bacteriophage against multidrug-resistant Staphylococcus aureus (MDRSA) bacterium in mice. METHODOLOGY: Staphylococcus aureus bacterium and S. aureus-specific lytic phage were isolated from sewage and wastewater collected within Nairobi County, Kenya...
November 24, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/27885396/the-effect-of-liming-and-sewage-sludge-application-on-heavy-metal-speciation-in-soil
#18
Elżbieta Malinowska
The aim of this paper is to assess the effect of liming and low doses of municipal sewage sludge (5%, 10%, 15% of the soil mass) on lead, chromium and nickel speciation in soil. The 420-day experiment was carried out in laboratory conditions. In all the samples lead, chromium and nickel concentration was determined with the ICP-AES method, while the content of those metals in different fractions was measured with the seven-step Zeien and Brümmer method, on the 30th and 420th days of the experiment. Sewage sludge doses significantly diversified lead, chromium and nickel amounts in the soil...
November 24, 2016: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/27884528/reducing-future-river-export-of-nutrients-to-coastal-waters-of-china-in-optimistic-scenarios
#19
Maryna Strokal, Carolien Kroeze, Mengru Wang, Lin Ma
Coastal waters of China are rich in nitrogen (N) and phosphorus (P) and thus often eutrophied. This is because rivers export increasing amounts of nutrients to coastal seas. Animal production and urbanization are important sources of nutrients in Chinese rivers. In this study we explored the future from an optimistic perspective. We present two optimistic scenarios for 2050 (OPT-1 and OPT-2) for China. Maximized recycling of manure on land in OPT-1 and OPT-2, and strict sewage control in OPT-2 (e.g., all sewage is collected and treated efficiently) are essential nutrient strategies in these scenarios...
November 21, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27882824/simultaneous-recovery-of-phosphorus-and-potassium-as-magnesium-potassium-phosphate-from-synthetic-sewage-sludge-effluent
#20
Satoshi Nakao, Takayuki Nishio, Yoshinori Kanjo
No abstract text is available yet for this article.
November 24, 2016: Environmental Technology
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