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A DNA pooling based system to detect Escherichia coli virulence factors in fecal and wastewater samples BJM
Luz María Chacón,J; Lizeth Taylor,C; Carmen Valiente,A; Irene Alvarado,P; Ximena Cortés,B.
The availability of a useful tool for simple and timely detection of the most important virulent varieties of Escherichia coli is indispensable. To this end, bacterial DNA pools which had previously been categorized were obtained from isolated colonies as well as selected in terms of utilized phenotype; the pools were assessed by two PCR Multiplex for the detection of virulent E. coli eaeA, bfpA, stx1, stx2, ipaH, ST, LT, and aatA genes, with the 16S gene used as DNA control. The system was validated with 66 fecal samples and 44 wastewater samples. At least one positive isolate was detected by a virulent gene among the 20 that were screened. The analysis of fecal samples from children younger than 6 years of age detected frequencies of 25% LT positive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Virulence genes; Wastewater; Fecal; Screening system; Escherichia coli.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400012
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A framework for efficient wastewater treatment and recycling systems AgEcon
Mekala, Gayathri Devi; Davidson, Brian; Samad, Madar; Boland, Anne-Maree.
Use of un-treated/partially treated wastewater for irrigation in the dry countries of Asia and Africa and recycling of treated wastewater in the water scarce developed countries has become a common practice due to various reasons. While the lack of wastewater treatment to appropriate levels before use is a major problem in developing countries, the high cost of wastewater recycling is the major problem in developed countries. The current paper is part of a doctoral research and presents the conceptual framework for the research and the methodology that can be used to tackle the problems associated with wastewater recycling.
Tipo: Working or Discussion Paper Palavras-chave: Water reuse; Wastewater; Recycling; Pricing; Water allocation; Cost benefit analysis; Wastewater irrigation; Developing countries; Developed countries; Case studies; India; Australia; Hyderabad; Melbourne; Agribusiness; Agricultural Finance; Crop Production/Industries; Demand and Price Analysis; Farm Management; Production Economics.
Ano: 2008 URL: http://purl.umn.edu/46387
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Abundance and species composition of planktonic Ciliophora from the wastewater discharge zone in the Bahía Blanca Estuary, Argentina Iheringia, Sér. Zool.
Barría de Cao,María Sonia; Pettigrosso,Rosa; Parodi,Elisa; Freije,Rubén.
The specific composition and abundance variation of the ciliate community from a wastewater discharge zone in the Bahía Blanca estuary, Argentina, were studied all throughout a year, from June 1995 to May 1996. The polluted area exhibited high values of particulate organic matter and nutrients, particularly phosphates. Aloricate ciliates were represented by 15 species belonging to the genera Strombidium Claparède & Lachmann, 1859; Strombidinopsis Kent, 1881; Cyrtostrombidium Lynn & Gilron, 1993; Strobilidium Schewiakoff, 1983; Lohmmanniella Leegaard, 1915 and Tontonia Fauré-Fremiet, 1914. Tintinnids were represented by nine species belonging to the genera Tintinnidium Kent, 1881, Tintinnopsis Stein, 1867 and Codonellopsis Jörgensen, 1924....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tintinnina; Ciliophora; Wastewater; Estuaries.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212003000300001
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Agricultural use of treated sewage effluents: agronomic and environmental implications and perspectives for Brazil Scientia Agricola
Fonseca,Adriel Ferreira da; Herpin,Uwe; Paula,Alessandra Monteiro de; Victória,Reynaldo Luiz; Melfi,Adolpho José.
In many studies worldwide the use of treated sewage effluents (TSE) as water and nutrient sources in agricultural irrigation have been introduced as a viable alternative for wastewater destination in the environment. Considering agronomic and environmental aspects the objectives of this review were: (i) to present an overview of TSE irrigation on different agro-systems (annual crops, orchards, forests and forages); and (ii) to show the principal changes on chemical, physical and microbiological soil characteristics after TSE application. Various studies have revealed that the nutrient supply only by TSE irrigation was not sufficient to meet plant nutrient requirements resulting in yield decreases. The problem could be solved by an adapted...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Water reuse; Nutrient source; Agriculture; Environmental impact.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200014
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Alterations in proteins and amino acids of the Nile cyanobacteria Pseudanabaena limnetica and Anabaena wisconsinense in response to industrial wastewater pollution BABT
El-Sheekh,Mostafa Mohamed; El-Otify,Ahmed Mohamed; Saber,Hani.
The effect of industrial wastewater on the Nile cyanobacteria Pseudanabaena limnetica and Anabaena wisconsinense was investigated. The data showed that P. limnetica was more sensitive to pollution than A. wisconsinense. The treatments with different levels of wastewater exerted pronounced reductions in protein and amino acids content. SDS-PAGE analysis revealed that the cyanobacteria grown in the industrial wastewater showed induction in the synthesis of certain polypeptides and repression of others. The treatments of P. limnetica with wastewater stimulated the appearance of six protein bands with molecular masses of 28, 30, 31, 32, 58 and 97 kDa. The same treatments caused the disappearance of 20, 38 and 56 kDa. The structural protein pattern of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amino acids; Anabaena; Electrophoretic patterns; Nile cyanobacteria; Protein; Pseudanabaena; Wastewater.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400022
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Antimicrobial susceptibility and virulence-associated genes in Campylobacter isolates from milk and wastewater in Hatay, Turkey Ciência Rural
Elmalı,Mehmet; Can,Hayriye Yeşim.
ABSTRACT: Campylobacter is one of the most common causes of bacterial foodborne diseases throughout the world. This study was conducted to determine the prevalence, antimicrobial resistance and virulence of Campylobacter isolates of raw cow’s milk and cattle slaughterhouse wastewater samples in Hatay, Turkey. A total of 114 raw milk and 78 wastewater samples were analyzed for the identification of C. jejuni, C. coli, and C. lari by multiplex PCR. The overall prevalence of Campylobacter was found to be 7.2%, of these isolates, 85.7% were identified as C. jejuni and 14.2% as C. coli, but C. lari was not detected in the study. The cdtA and cadF genes were present in 66.6% and 41.6% of C. jejuni isolates tested, respectively, but wlaN gene was not found in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial resistance; Campylobacter; Milk; Wastewater.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000500450
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Bacillus thuringiensis production and application studies in Brazil. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; ARRUDA, R.O.M..
1996
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Biological control; Bioinsecticide; Soybean; Raw material; Agroindustrial residues; Wastewater; Solid state fermentation; Fermentative process; Soybean pests; Anticarsia gemmatalis; Musca domestica; Plodia interpuctela; Ceratitis captata.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/12554
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Biological treatment of drippers clogged by the use of treated domestic wastewater AGRIAMBI
Costa,Danniely O.; Batista,Rafael O.; Vale,Hudson S. M.; Sousa,Amanda B. de; Dombroski,Solange A. G.; Alves,Sandra M. C..
ABSTRACT This study aimed to recover the flow rate of clogged drippers with different doses and permanence times of the product MaxBio. The experiment was conducted in a completely randomized design in split-split-plot scheme, where the plots corresponded to product doses (80, 160, 240 and 320 mg L-1), subplots to the applied treatments (T1 - without biological treatment, T2 - 1st application of the product, and T3 - 2nd application of the product) and in sub-subplots the types of emitters (Plastro Hydrodrip Super, Netafim Tiran and Netafim PCJ-CNJ), with three replicates. The four irrigation units operated with treated domestic wastewater for 400 h in order to clog the emitters. After applying the product MaxBio, the flow rate of the drippers and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Emitters; Wastewater; Unclogging; Bactéria.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700595
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Cassava wastewater (manipueira) treatment using a two-phase anaerobic biodigestor Ciênc. Tecnol. Aliment.
BARANA,Ana Cláudia; CEREDA,Marney Pascoli.
A two-phase anaerobic biodigestor was employed in order to analyze methane production with different manipueira organic loading rates. The acidogenic phase was carried out in a batch process whereas the methanogenic in an up-flow anaerobic fixed bed reactor with continuous feeding. The organic loading rates varied from 0.33 up to 8.48g of Chemical Demand Oxygen (COD)/L.day. The highest content of methane, 80.9%, was obtained with organic loading rate of 0.33g and the lowest, 56.8%, with 8.48gCOD/L.d. The highest reduction of COD, 88.89%, was obtained with organic loading rate of 2.25g and the lowest, 54.95%, with 8.48gCOD/L.d. From these data it was possible to realize that anaerobic biodigestion can be managed in at least two ways, i.e., for energy...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic biodigestion; Biogas; Wastewater; Cassava; Methane.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612000000200010
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Changes in the sediment trace metal contamination after the commissioning of a municipal wastewater treatment plant in the Souss estuary (South Morocco) ArchiMer
Moukrim, A; Chiffoleau, Jean-francois; Cheggour, M; Burgeot, Thierry.
Monthly samples of sediment were collected from the Souss estuary, to determine the changes which have occurred in the concentrations of ten metals between 2001 when the low estuary was receiving the wastewaters from Agadir city and 2003 after stopping the sewage dumping. The annual contents of Cu, Fe, Zn (in 2001) and those of Cr, Cu, Fe, Mn, Ni, Pb, and Zn (in 2003) showed significant correlations with those of Al, indicating that fluctuations of their concentrations were only due to those of the aluminosilicate fraction of the clayey sediment. After normalization of these metallic concentrations in relation to those of Al, the contents of the different metals showed insignificant correlations between both years, except for Zn which significantly dropped...
Tipo: Text Palavras-chave: Souss estuary; Wastewater; Sediment; Metal contamination.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-5923.pdf
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CHLOROPHYLL FLUORESCENCE OF BASIL PLANTS CULTIVATED IN A HYDROPONIC SYSTEM USING TREATED DOMESTIC WASTEWATER REA
Gonçalves,Karoline S.; Alves,Lucylia S.; Paz,Vital P. da S.; Bandeira,Samir de S..
ABSTRACT Different techniques have been used to evaluate the energetic characteristics and damage to the photosynthetic apparatus of plants exposed to different stresses, including the measurement of chlorophyll fluorescence. The objective of this study is to evaluate the photosynthetic response by assessing the fluorescence parameters of chlorophyll a in basil (Ocimum basilicum L.) cv. Alfavaca Basilicão cultivated in a hydroponic deep-flow technique system using treated domestic wastewater. The study used a completely randomized block design with a 2 × 2 factorial scheme, in which the factors were the water source used for preparing the nutrient solution (tap water or treated domestic wastewater) and the height (upper and lower) of the platform of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Ocimum basilicum L.; Photosynthetic response.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000300288
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Comparison of White-rot Fungi and Ozone for Decolorization of Wastewater from Pulp and Paper Industry Thai Agricultural
Vaithanomsat, P.; Apiwattanapiwat, W.; Siriacha, P..
Palavras-chave: Comparison; Ozone; Decolorization; Wastewater; Pulp; Paper; Industry.
Ano: 2006 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5018
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Composition and functional groups of epiedaphic ants (Hymenoptera: Formicidae) in irrigated agroecosystem and in nonagricultural areas. Repositório Alice
HERNÁNDEZ-RUI, P.; CASTAÑO-MENESES, G.; CAN0-SANTANA, Z..
Abstract ? The objective of this work was to evaluate the species composition and functional groups of ants in nonagricultural (NA) and in irrigated areas (S, seasonal irrigation; P, irrigation with well water; W, irrigation with wastewater) in an arid agricultural region in central Mexico, throughout 2005 and 2006. A total of 52,358 ants belonging to 6 subfamilies, 21 genera and 39 species was collected using pitfall traps. The species best represented in all plots were: Forelius pruinosus, Pheidole obtusospinosa, Monomorium minimum and Dorymyrmex spp. NA plots recorded the highest density of ants. The highest values for diversity (H') and equitativity (J') were recorded in NA and P plots, while the lowest were recorded in W plots. Cluster analysis showed...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Irrigated area; Biodiversity; Semiarid zone; Wastewater.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/660778
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Composition and functional groups of epiedaphic ants (Hymenoptera: Formicidae) in irrigated agroecosystem and in nonagricultural areas PAB
Hernández-Ruiz,Patricia; Castaño-Meneses,Gabriela; Cano-Santana,Zenón.
The objective of this work was to evaluate the species composition and functional groups of ants in nonagricultural (NA) and in irrigated areas (S, seasonal irrigation; P, irrigation with well water; W, irrigation with wastewater) in an arid agricultural region in central Mexico, throughout 2005 and 2006. A total of 52,358 ants belonging to 6 subfamilies, 21 genera and 39 species was collected using pitfall traps. The species best represented in all plots were: Forelius pruinosus, Pheidole obtusospinosa, Monomorium minimum and Dorymyrmex spp. NA plots recorded the highest density of ants. The highest values for diversity (H') and equitativity (J') were recorded in NA and P plots, while the lowest were recorded in W plots. Cluster analysis showed two...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Irrigated area; Semiarid zone; Wastewater.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800015
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Copper and zinc forms in soil fertilized with pig slurry in the bean crop. Repositório Alice
GROHSKOPF, M. A.; CORREA, J. C.; CASSOL, P. C.; NICOLOSO, R. da S.; FERNANDES, D. M..
Abstract: The application of pig slurry may have different influence on copper (Cu) and zinc (Zn) dynamics in the soil compared with mineral fertilization. The aim of this research was to determine the different forms of Cu and Zn in soil and their uptake by bean plants in response to the application of mineral fertilizer and pig slurry (PS). The treatments were: mineral fertilizer (Cu and Zn oxides) and liquid pig slurry, at increasing rates (0/0, 1.7/6.0, 3.4/12.0 and 6.8/24.0 kg ha-1 Cu/Zn, respectively) applied in a Rhodic Kandiudox. PS increased the Cu content in soil in the exchangeable form, Fe oxides and residual, while the mineral fertilizer increased Cu contents in the fraction associated with soil organic matter. Soil Zn contents in the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Pig manures; Dejeto; Suíno; Wastewater.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1058292
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Cultivation of Scenedesmus dimorphus for C/N/P removal and lipid production Electron. J. Biotechnol.
Xu,Xinmiao; Shen,Ying; Chen,Jiacheng.
Background CO2 emission, water pollution and petroleum shortage are the issues coming with the development of industry. A cost effective system was constructed to fix the CO2 in flue gas (15% CO2), remove nitrogen and phosphorus from manure wastewater and produce biofuels at the same time. The significant cultivation conditions were selected by Plackett-Burman design, and then optimized with central composite design. Results Optimum culture condition was predicted at light intensity of 238 µmol·m- 2·s- 1, TN of 152 mg·L- 1, inoculum density of 0.3 g·L- 1, under which the measured CO2 fixation rate, total nitrogen and phosphorus removing rate, and lipid content were 638.13 mg·L- 1·d- 1, 88.16%, 73.98% and 11.9%, respectively. The lipid content was then...
Tipo: Journal article Palavras-chave: CO2 fixation rate; Flue gas; Lipid content; Scenedesmus dimorphus; Wastewater.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000100009
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Desenvolvimento e validação de método para determinação de bisfenol A e etinilestradiol em aguapé e mini-papiro provenientes de wetlands construídas. Repositório Alice
CAMPOS, J. M.; ROSTON, D. M.; QUEIROZ, S. C. do N. de.
Abstract: Bisphenol A and ethinylestradiol, both considered as endocrine disruptors, have been found in surface water and effluents from municipal wastewater supply and can cause adverse health effects on wildlife species and in human beings at extremely low level. In order to remove these compounds from wastewater, constructed wetlands has been used since it proved to be more efficient, and has less cost than conventional treatments. One of the mechanisms of removal of endocrine disruptors by constructed wetlands is the uptake by macrophytes, so it is necessary to analyze these compounds in the plants of the system. Thus, the objective of this study was to develop and validate two methods by high performance liquid chromatography with fluorescence...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cyperus isocladus; Aguapé; Mini-papiro; Planta Aquatica; Eichhornia Crassipes; Constructed wetlands; Wastewater; Wastewater treatment; Liquid chromatography; Endocrine-disrupting chemicals.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118927
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Development of seedlings of watermelon cv. Crimson Sweet irrigated with biosaline water. Repositório Alice
SILVA, J. E. S. B. da; MATIAS, J. R.; GUIRRA, K. S.; ARAGÃO, C. A.; ARAUJO, G. G. L. de; DANTAS, B. F..
The limited access and the scarcity of good quality water for agriculture are some of the major problems faced in agricultural areas, particularly in arid and semiarid regions. The aim of this study was to evaluate the quality of watermelon seedlings (cv. Crimson Sweet), irrigated with different concentrations of biosaline water of fish culture. The experimental design was completely randomized with five treatments, corresponding to biosaline water at different concentrations (0, 33, 50, 67 and 100%), and four replicates of 108 seedlings. Watermelon seeds were sown in plastic trays filled with commercial substrate and irrigated with different solutions of biosaline water. Seedlings were harvested for biometric analysis at 14, 21 and 28 days after sowing....
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Citrullus lanatus; Muda; Melancia; Água residuária; Salinidade; Germinação; Água biossalina; Irrigação; Wastewater; Watermelon; Salinity; Germination.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1023037
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Development of seedlings of watermelon cv. Crimson Sweet irrigated with biosaline water AGRIAMBI
Silva,José E. S. B. da; Matias,Janete R.; Guirra,Keylan S.; Aragão,Carlos A.; Araujo,Gherman G. L. de; Dantas,Bárbara F..
ABSTRACTThe limited access and the scarcity of good quality water for agriculture are some of the major problems faced in agricultural areas, particularly in arid and semiarid regions. The aim of this study was to evaluate the quality of watermelon seedlings (cv. Crimson Sweet), irrigated with different concentrations of biosaline water of fish culture. The experimental design was completely randomized with five treatments, corresponding to biosaline water at different concentrations (0, 33, 50, 67 and 100%), and four replicates of 108 seedlings. Watermelon seeds were sown in plastic trays filled with commercial substrate and irrigated with different solutions of biosaline water. Seedlings were harvested for biometric analysis at 14, 21 and 28 days after...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrullus lanatus; Wastewater; Salinity; Germination.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000900835
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Diversidade e ocorrência de herbáceas e de fungos micorrízicos arbusculares em agrossistema irrigado com água produzida. Repositório Alice
ANDRADE, D. J..
Este trabalho teve por objetivo avaliar a diversidade de herbáceas e de fungos micorrízicos arbusculares em sucessão à cultura do girassol irrigado com água produzida (AP). As plantas de girassol, durante três ciclos sucessivos, receberam lâminas adequadas de água produzida obtida por simples filtração (APF), tratada por osmose reversa (APO), e o tratamento controle recebeu água do subsolo, captada do aquífero Açu (ACA). Após cinco meses da última colheita, em junho de 2014, foram avaliados nos diferentes tratamentos a diversidade de plantas sucessoras, a colonização micorrízica arbuscular (MA) nas raízes e amostras de solo superficial (0-10 cm), onde se determinaram as populações de esporos de comunidades de fungos MA, o teor de glomalina, nas frações...
Tipo: Tese/dissertação (ALICE) Palavras-chave: Água residuária; Sucessão vegetal; Atividade micorrízica; Microbiologia ambiental; Wastewater.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102032
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