Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados BABT (7) REA (7) ArchiMer (5) AgEcon (4) AGRIAMBI (4) Colegio de Postgraduados (3) BJM (2) Ciência Rural (2) Electron. J. Biotechnol. (2) Rev. Bras. Ciênc. Solo (2) Thai Agricultural (1) CIGR Journal (1) Infoteca-e (1) Biological Sciences (1) Anais da ABC (AABC) (1) Scientia Agricola (1) Ecology and Society (1) Iheringia, Sér. Zool. (1) PAB (1) Mais... Autor Boland, Anne-Maree (2) Dalri,Alexandre B. (2) Davidson, Brian (2) Matos,Antonio T. (2) Saraiva,Claudety B. (2) Zanini,José R. (2) ARAGAO, F. A. S. de (1) Abril, Gwenael (1) Alves,Lucylia S. (1) Alves,Sandra M. C. (1) Apiwattanapiwat, W. (1) Aragão,Carlos A. (1) Araujo,Gherman G. L. de (1) BERGER,JUSSARA S. (1) Bandeira,Samir de S. (1) Barana,Ana C. (1) Barana,Ana Claudia (1) Barría de Cao,María Sonia (1) Batista,Rafael O. (1) Baumert, Jennifer (1) Mais... Palavra-chave Wastewater (47) Aguas residuales (3) Heavy metals (3) Water reuse (3) Biosorption (2) Clogging (2) Electrical conductivity (2) Emitters (2) Hidrociencias (2) Irrigation (2) Pricing (2) Recycling (2) Resource /Energy Economics and Policy (2) Salinity (2) Trickle irrigation (2) Water saving (2) 2.00.00.00-6 Ciências Biológicas effluent (1) Adaptation phase (1) Advanced Oxidation Processes (1) Agribusiness (1) Mais... Tipo do documento Info:eu-repo/semantics/article (29) Text (5) Journal article (2) Working or Discussion Paper (2) Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) (1) Conference Paper or Presentation (1) Journal Article (1) Peer-Reviewed article (1) Mais... Ano 2021 (1) 2020 (2) 2019 (5) 2018 (4) 2017 (7) 2016 (4) 2015 (3) 2014 (1) 2013 (2) 2012 (2) 2011 (1) 2009 (3) 2008 (4) 2007 (3) 2006 (1) 2005 (1) 2004 (2) 2003 (1) Mais... País Brazil (30) France (5) United States (4) Mexico (3) Chile (2) Canada (1) China (1) Thailand (1) Mais... Idioma Inglês (42) Espanhol (3) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 47 Primeira ... 1 2 3 ... Última 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 Private Sector Participation in the Water and Wastewater Services Industry AgEcon Baumert, Jennifer; Bloodgood, Laura. Countries introduce private sector participation into the water and wastewater utilities sector for a number of reasons. The introduction of a profit motive may increase efficiency as compared to public management of the water system, and private firms have been noted for customer service improvements. Financial considerations, including revenues from the sale of assets and reductions in the direct cost of providing water services, may also motivate governments to introduce private sector participation in this industry. However, because water is a basic human necessity, the introduction of private participation in this industry sector may raise social, economic, and national security concerns. Private participation in the global water and wastewater... Tipo: Working or Discussion Paper Palavras-chave: Water; Wastewater; Environmental services; Private sector participation; Public Economics. Ano: 2004 URL: http://purl.umn.edu/15876 The Economic Value of Improved Wastewater Irrigation: A Contingent Valuation Study in Addis Ababa, Ethiopia AgEcon Weldesilassie, Alebel B.; Fror, Oliver; Boelee, Eline; Dabbert, Stephan. In developing countries the use of wastewater for irrigation can cause considerable harm to public health and the environment. This paper uses contingent valuation to estimate the economic value of safe use of wastewater for crop production on farms within and around Addis Ababa, Ethiopia. We estimate a surprisingly large welfare gain from policies for safe use of wastewater for irrigation. Our study highlights the potential and the possible pitfalls of using nonmarket valuation techniques as an input into public decision making where traditional resource use interacts with public health and environmental concerns in complex ways. Tipo: Journal Article Palavras-chave: Contingent valuation; Dichotomous choice; Ethiopia; Irrigation; Wastewater; Willingness to pay; Resource /Energy Economics and Policy. Ano: 2009 URL: http://purl.umn.edu/57629 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 Economics of Wastewater Treatment and Recycling: An Investigation of Conceptual Issues AgEcon Devi, Mekala Gayathri; Davidson, Brian; Boland, Anne-Maree. In the context of continuous droughts, the search for alternative water sources and increasing environmental restrictions on discharge of treated wastewater into natural water bodies, treated wastewater recycling offers a potential solution. In this paper the methods needed to assess the questions - to what extent treated wastewater can complement the existing water sources in different sectors and at what cost - are discussed? It was concluded that a comparative Benefit Cost Analysis of different combinations of uses and treatment levels would be a critical component in the development of a decision support tool which could be used by urban planners and water authorities. It was also found that community acceptance of recycled water, distribution of costs... Tipo: Conference Paper or Presentation Palavras-chave: Wastewater; Recycling; Water quality; Pricing; Allocation; Urban design; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/9461 Effectiveness of Arsenic Co-Precipitation with Fe-Al Hydroxides for Treatment of Contaminated Water Rev. Bras. Ciênc. Solo Mello,Jaime Wilson Vargas de; Gasparon,Massimo; Silva,Juscimar. ABSTRACT Wastewater treatment is a challenging problem faced by the mining industry, especially when mine effluents include acid mine drainage with elevated arsenic levels. Iron (hydr)oxides are known to be effective in removal of As from wastewater, and although the resulting compounds are relatively unstable, the presence of structural Al enhances their stability, particularly under reducing conditions. The purpose of this study was to assess the effectiveness of Al-Fe (hydr)oxide co-precipitates for the removal of As from wastewater and to assess the chemical stability of the products. Different Al-Fe (hydr)oxides were synthesized at room temperature from ferrous and aluminum salts using three different Fe:Al molar ratios (1:0.0, 1:0.3, and 1:0.7) and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Decontamination; Sludge stability; Magnetite; Goethite. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100513 Interaction between Thermotolerant Coliforms and Rhizobacteria in Soil Fertilized with Treated Domestic Wastewater Rev. Bras. Ciênc. Solo Fortes Neto,Paulo; Fortes,Nara Lúcia Perondi; Silva,Eliana Maria de Araújo Mariano da; Brambatti,Fabiana. ABSTRACT Studies on the survival of pathogenic microorganisms in the soil after use of wastewater for fertilization of agricultural crops report the effects of moisture, pH, organic matter, and soil temperature on microorganisms. There are few studies that assess the survival of these microorganisms in the rhizosphere of plants fertilized with wastewater. Thus, the aim of this study was to quantify the number of fecal coliforms and rhizobacteria (fluorescent Pseudomonas spp., Bacillus spp,) in the rhizosphere of winter and summer crops fertilized with wastewater. In the experiment, we used 20 plots, and each plot occupied an area of 200 m2. The treatments used in the winter crop consisted of uncultivated plots and single crops of wheat, triticale, black... Tipo: Info:eu-repo/semantics/article Palavras-chave: Rhizosphere; Reclaimed water; Wastewater. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100414 Performance of pressure-compensating emitters using treated sewage effluent for irrigation AGRIAMBI Fischer Filho,João A.; Oliveira,Vinicius M. R. de; Dalri,Alexandre B.; Zanini,José R.. ABSTRACT This study aimed to evaluate the flow variation of pressure-compensating emitters using treated sewage effluent (TSE). A drip irrigation system with four types of pressure-compensating emitters (G1 - Naan Dan Jain Model Top Drip, G2 - Naan Dan Jain Model Naan PC, G3 - Drip-Plan, G4 - Naan Dan Jain Model Naan Amnon) was installed with TSE from the sewage treatment station, filtered through a disc filter (120 mesh). Seven evaluations of flow rate of the drippers were performed (0, 100, 200, 300, 400, 500 and 600 h of operation) operating at 100 kPa. The experimental design was completely randomized in a 4 x 7 factorial arrangement (4 models and 7 times) with four replicates and Tukey test to compare the means. The relative flow rate (Qr), flow rate... Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Trickle irrigation; Clogging; Water saving. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001000869 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 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 Performance of drippers in two filtering systems using sewage treatment effluent AGRIAMBI Dalri,Alexandre B.; Santos,Gilmar O.; Dantas,Geffson de F.; Faria,Rogério T. de; Zanini,José R.; Palaretti,Luiz F.. ABSTRACT The objective of this study was to evaluate the performance of three models of drippers using treated sewage effluent, pure and diluted, and two types of filters, screen and disc. The treated sewage effluent used in the experiment was collected from the city’s treatment plant. The experiment included 12 lateral lines with three types of emitters to apply pure (100%) and diluted (50%) effluent filtered by screen and disc filters. The combination of those factors set the treatments: T1 (50% effluent diluted in fresh water filtered by a screen filter); T2 (50% effluent diluted in fresh water filtered by a disc filter); T3 (pure effluent filtered by a screen filter); T4 (pure effluent filtered by a disc filter). The results showed that the flat type... Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Emitters; Filter; Reuse; Irrigation. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000600363 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 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 Uso de “wetland” construído para tratamento de resíduos - DOI: 10.4025/actascibiolsci.v30i3.5002 Biological Sciences Sipaúba-Tavares, Lúcia Helena; UNESP - Jaboticabal; Braga, Francisco Manoel de Souza; UNEP Rio Claro. Variáveis físico-químicas da água e do solo foram avaliadas a fim de verificar a eficiência de um “wetland” construído no tratamento de resíduos. Foram escolhidas oito espécies de macrófitas baseadas na capacidade de retenção e disponibilidade no local de estudo. Dentre elas estão: Eichhornia crassipes, Alternanthera philoxerodos, Heteranthera reniformis, Hydrocotyle umbeliferae, Ludwigia elegan, Ludwigia sericea, Myriophyllum aquaticum e Thypha domingensis. Foram amostrados dois pontos um na entrada e outro na saída de água do “wetland”. Diferenças significativas (p < 0,05) foram observadas entre a entrada e saída do “wetland” em relação às variáveis limnológicas. Em geral, foram observadas concentrações de oxigênio dissolvido acima de 4 mg L-1 e de... Palavras-chave: 2.00.00.00-6 Ciências Biológicas effluent; Wastewater; Physical and chemical parameters; Macrophyte. effluent; Wastewater; Physical and chemical parameters; Macrophyte. Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5002 Use of Water Hyacinth (Eichhornia crassipes) to Treat Biogas Effluent of A Tapioca Industry Wastewater Treatment System CIGR Journal Haryanto, Agus; Triyono, Sugeng; Siska, Posmaria Mei. This research aims to evaluate performance of a water hyacinth (Eichornia crassipes (Mart) Solms) pond used to treat biogas effluent of a tapioca industry wastewater treatment system.  The water hyacinth pond which treats biogas effluent has been monitored for about two months.  Wastewater samples were taken from influent and effluent of the water hyacinth pond.  Parameters to be observed included wastewater quality parameters (pH, temperature, turbidity, BOD5, ammonia, solids, evapotranspiration, discharge, and hydraulic retention time) and water hyacinth parameters (growth, population density, moisture, ash, nutrient contents).  The results showed that water hyacinth improved some parameters of the biogas effluent to some extent.  Within HRT of 53 days,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Biogas; Environmental burden; Organic matter; Indonesia.. Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5867 Production of lipolytic enzymes by bacteria isolated from biological effluent treatment systems Anais da ABC (AABC) FURINI,GRACIANE; BERGER,JUSSARA S.; CAMPOS,JOSÉ A.M.; SAND,SUELI T. VAN DER; GERMANI,JOSÉ C.. Abstract This work aimed to evaluate the production of lipolytic complexes, produced by microorganisms isolated from a biological treatment system of effluents from a hotel. To select the best lipolytic microorganism for use in biotechnological processes, we tested 45 bacterial isolates recovered from the raw effluent of the hotel’s restaurant waste tank. Lipase production was assayed in culture medium supplemented with olive oil and rhodamine B, incubated at 25 °C and 30 °C for 24 h - 48 h. Results showed 22 isolates lipase producers. All isolates were inoculated on medium without yeast extract to select the ones with highest enzyme yields. Out of these, nine isolates showed high lipase activity. The strain with the larger halo was assayed in submerged... Tipo: Info:eu-repo/semantics/article Palavras-chave: Lipolytic enzymes; Bacteria; Submerged culture; Wastewater. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602955 Photo-fenton remediation of wastewaters containing agrochemicals BABT Teixeira,Antonio Carlos Silva Costa; Mendes,Lucas; Stollar,Giselle; Guardani,Roberto; Nascimento,Cláudio Augusto Oller do. The photochemical degradation of agrochemicals in aqueous solution by means of advanced oxidation processes (AOPs) was studied. The photo-Fenton process was evaluated in terms of the time evolution of dissolved organic carbon (COD) and chemical oxygen demand (DOC), their total removals, and increase in biodegradability of treated wastewater. Under the experimental conditions studied, the process showed to be superior to other AOPs, at any Fe(II) and H2O2 concentrations. The results pointed towards the use of solar irradiation and low cost commercial application. Tipo: Info:eu-repo/semantics/article Palavras-chave: Advanced Oxidation Processes; Photo-Fenton; Agrochemicals; Wastewater. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400026 Microbial succession within an anaerobic sequencing batch biofilm reactor (ASBBR) treating cane vinasse at 55ºC BABT Ribas,Maria Magdalena Ferreira; Chinalia,Fabio Alexandre; Pozzi,Eloisa; Foresti,Eugenio. The aim of this work was to investigate the anaerobic biomass formation capable of treating vinasse from the production of sugar cane alcohol, which was evolved within an anaerobic sequencing batch biofilm reactor (ASBBR) as immobilized biomass on cubes of polyurethane foam at the temperature of 55ºC. The reactor was inoculated with mesophilic granular sludge originally treating poultry slaughterhouse wastewater. The evolution of the biofilm in the polyurethane foam matrices was assessed during seven experimental phases which were thus characterized by the changes in the organic matter concentrations as COD (1.0 to 20.0 g/L). Biomass characterization proceeded with the examination of sludge samples under optical and scanning electron microscopy. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic digestion; Adaptation phase; Wastewater; Sugar cane; Biofilm; Microbiology. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400028 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 Gill histopathological alterations in Nile tilapia, Oreochromis niloticus exposed to treated sewage Water BABT Fontaínhas-Fernandes,António; Luzio,Ana; Garcia-Santos,Sofia; Carrola,João; Monteiro,Sandra. Adult Nile tilapia, Oreochromis niloticus, of both sexes were exposed in wastewater from a sewage treatment plant for a period of 4 days. Gill samples were collected after 24, 48, 72 and 96 h and histopathological changes were analyzed by light and scanning electronic microscopy. Gill epithelium of control O. niloticus (freshwater group) was similar to that of other teleosts, while histopathological lesions were observed in exposed fishes. The main histopathological changes were edema, lifting of lamellar and filamentar epithelia and lamellar fusion. Cell proliferation with consequent thickening of the filament epithelium was also found in fishes exposed to the treated sewage water. The severity of the lesions increased with the time of exposure, namely... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gill; Tilapia; Histopathology; Wastewater. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500023 Registros recuperados: 47 Primeira ... 1 2 3 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco