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| Registros recuperados: 33 | |
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| Reis,Matheus Mendes; Silva,Ariovaldo José da; Santos,Leonardo David Tuffi; Lopes,Érika Manuela Gonçalves; Barros,Rodrigo Eduardo; Donato,Luan Mateus Silva. |
| ABSTRACT Wastewater can be considered an excellent nutritional and water source for cultivated plants. However, the presence of high concentrations of salts and toxic compounds can negatively affect crops. The effect of irrigation with different concentrations of treated wastewater on the accumulation of nutrients and gas exchange aspects of millet (Pennisetum glaucum (L.) R. Br.) grown in clay soil and sandy loam soil was analyzed. This study was conducted in a greenhouse (16°40’57,50” S; 43°50’26,07” O; 650 m) in a 5 x 2 factorial design, consisting of five levels of concentration of treated wastewater (0, 25, 50, 75, and 100%), combined with two types of soil (clay and sandy loam). The experiment was designed in randomized blocks with four replicates.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pennisetum glaucum; Water reuse; Nutrient absorption; Photosynthesis.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100242 |
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| Santos, Roberto Jose dos; Fortes Neto, Paulo; Batista, Getulio Teixeira. |
| Citação: SANTOS, R. J. dos; FORTES NETO, P.; BATISTA, G. T. Fertirrigação com esgotos tratados por processos anaeróbios e pós –tratamento. Repositório Eletrônico Ciências Agrárias, Coleção Ciências Ambientais, <http://www.agro.unitau.br/dspace>. p. 1-10, 2011. Resumo. Este trabalho foi desenvolvido a partir de pesquisas de artigos científicos de experimentos efetuados na cidade de Campina Grande, com esgotos domésticos, tratados inicialmente por reatores anaeróbios do tipo UASB e posteriormente submetidos a diversos tipos de pós- tratamentos, em todas as experiências avaliou-se a eficiência de cada sistema, buscando-se verificar basicamente, alguns indicadores tais como: remoção de nutrientes, organismos patogênicos, eficiência de DBO, DQO, sólidos... |
| Tipo: Article |
Palavras-chave: Reatores; Irrigação; Reuso de águas; Águas residuárias; Water reuse; Waste waters. |
| Ano: 2011 |
URL: http://hdl.handle.net/2315/172 |
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| Silva Júnior,João J. da; Coelho,Eugênio F.; Sant'Ana,José A. do V.; Accioly,Adriana M. de A.. |
| The study aimed to evaluate chemical, microbiological and hydro-physical changes of a Dystrophic Yellow Latosol, receiver of different levels of manipueira (cassava wastewater) application, in the cultivation of 'Terra Maranhão' banana. The experimental design was a randomized block with three replications in a factorial scheme 3 x 4, in which it was considered three soil depths and four levels of manipueira. It was evaluated the weighted mean diameter of the aggregate, the percentage of aggregation at different periods, soil density, particle density, porosity and soil saturated hydraulic conductivity, in addition to pH of P (mg dm -3), K (mg dm-3), Ca (cmolc dm-3), Mg (cmolc dm-3), Ca+Mg (cmolc dm-3), Al (cmolc dm-3), Na (cmolc dm -3), H+Al (cmolc dm-3),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertirrigation; Water reuse; Musa spp. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400013 |
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| Dantas,Geffson de F.; Faria,Rogério T. de; Costa,Natã R.; Santos,Gilmar O.; Ferraudo,Antonio S.. |
| ABSTRACT The response of biomass flow components of forage from the interaction between fertigation with wastewater and cutting height during the year is little known. The objective of this work was to verify the responses of morphogenic and structural characteristics of Urochloa brizantha as a function of fertigation application strategies with sewage treatment plant effluent (TSE), complemented with urea (U), associated with harvest with two plant heights during the dry and rainy periods. The forage cutting heights were 30 cm (H1) and 40 cm (H2), and nitrogen fertilization doses were 9.1 (D1), 12.1 (D2), 22.5 (D3), 26.6 (D4), and 34.0 (D5) kg of N per Mg−1 of dry matter (DM) produced, applied by TSE via fertigation, plus 7.5 kg N per Mg−1 of DM produced,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Defoliation; Nitrogen; Water reuse. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600692 |
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| Rosa,Danielle M.; Sampaio,Silvio C.; Pereira,Pâmela A. M.; Reis,Ralpho R. Dos; Sbizzaro,Mariana. |
| ABSTRACT: Soil application of swine wastewater for nutrient cycling may represent a correct destination of these residues and reduction in production costs. However, when applied to soil, such residue may cause environmental impacts. This study aimed to analyze the chemical characteristics of the soil, corn, and leachate after successive swine wastewater applications associated with mineral fertilization. The experiment was developed in drainage lysimeters under field conditions. Wastewater doses applied were 0, 100, 200, and 300 m3 ha−1 with and without mineral fertilization. The results were submitted to analysis of variance and Tukey's test. After nine years of application, a special attention should be taken regarding water quality from a dose of 200... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Liquid residue of swine; No-tillage; Water reuse. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400801 |
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| Rosa,Danielle M.; Sampaio,Silvio C.; Pereira,Pâmela A. M.; Mauli,Márcia M.; Reis,Ralpho R. Dos. |
| ABSTRACT: The use of animal-origin residues as a nutrient source without prior and proper investigations on their positive and negative impacts can affect the quality of agricultural soils and the environment into which they are inserted. In this sense, the aim of this study was to assess the impact of swine wastewater and mineral fertilization application on soil, soybean crop, and leachate characteristics. The experiment was developed in drainage lysimeters under field conditions. The following doses of swine wastewater were applied: 0, 100, 200, and 300 m3 ha−1, both with and without mineral fertilization. Swine wastewater application contributed to increasing soil nutrients; however, a special attention should be paid to Cu+ and Zn+ accumulation, which... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pig slurry; Soil fertility; Leachate; Water reuse. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000500928 |
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| Sousa,Allan C. M. de; Matsura,Edson E.; Elaiuy,Marcelo L. C.; Santos,Leonardo N. S. dos; Montes,Célia R.; Pires,Regina C. de M.. |
| Irrigation with domestic sewage effluent (DSE) has been recommended by subsurface dripping, as it can obtain a high rate of irrigation efficiency and faster use of salts in comparison with other irrigation methods. The study aimed at evaluating the area, the length and the effective depth of the root system of sugarcane irrigated with DSE by subsurface drip system and with different irrigation rates at depths of 0.00-0.20, 0.20-0.40, 0.40-0.60 and 0.60-0.80m. The experiment was carried out in the municipality of Piracicaba, in the state of São Paulo (SP), Brazil, in a sugarcane area irrigated with DSE in a completely randomized blocks set up in furrows, with three replications and four treatments, which are: one area without irrigation (AWI) and three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Root; Water reuse; Subsurface drip. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000400006 |
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| Oliveira,Jacineumo F. de; Rodrigues,Fernando N.; Fia,Ronaldo; Mafra,Dayana C. B.; Landim,Daniela V.. |
| ABSTRACT The objective of this study was to evaluate the quality of the percolate in soil columns cultivated with Tiffon-grass 85 under different wastewater rates from swine slaughterhouse and dairy. The experiment was conducted at the Department of Engineering at the Federal University of Lavras, in PVC columns with 0.30 m of diameter and 1.2 m deep, filled with Dark Red Latosol cultivated with Tifton-grass 85. The treatments consisted of a (AQT0) control with recommended chemical fertilization for Tifton-grass 85 (300 kg ha-1 year-1 of N), and four doses of SSW and DPW (100, 200, 300 and 400% of the recommendation) in a CRD with 3 replications. The samples of percolated were collected and characterized weekly. The treatments of highest dosage have... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water reuse; Wastewater; Leaching; Soil disposal; Agroindustry wastewaters. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000601222 |
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| Andrade,Carolyne W. L. de; Montenegro,Suzana M. G. L.; Miranda,Jarbas H. de; Montenegro,Abelardo A. de A.; Assis,Fred M. C. V. de. |
| ABSTRACT The application of chemical substances to the soil together with little attention given to the possible environmental impacts, transformed the environment into a recipient of waste. The aim of this study was to simulate the movement of water and solutes (sodium and potassium together) using the STANMOD and HYDRUS-2D models in a typical Haplic Planosol under the application of wastewater via surface irrigation under different flow rates. The experiment was conducted in the laboratory by miscible displacement tests, first using columns with deformed soil under saturation and steady water flow conditions, at a rate of 11.7 cm3 min-1, to obtain transport parameters of sodium and potassium ions, and in the applied residual water, the values of 475 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Modeling; Nutrients; Soil physical properties; Water reuse. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000600874 |
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| Fontenele, Raimundo Eduardo Silveira. |
| In the last years sanitation companies have restrained their investments, not just due to the fact that the necessary resources of the sector exceed by far the classic possibilities of the national budgets financing, but also due to the fact that the traditional solution of external financings have their restrictions. It is also observed that the charges of tariffs, not considering the cost of the services done, have caused imbalances which also represent subsidized allocation of resources, mainly to private sector. From the application of two distinct methodologies - the long-term marginal cost and the contingent valuation method, this article has aimed to present tariff values to be charged from users of the Water Reuse of the Industrial District of... |
| Tipo: Journal Article |
Palavras-chave: Water reuse; Tariff; Long term marginal cost; Evaluation.. |
| Ano: 2007 |
URL: http://purl.umn.edu/43708 |
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| van der Hoek, Wim; Ul Hassan, Mehmood; Ensink, Jeroen H.J.; Feenstra, Sabiena; Raschid-Sally, Liqa; Munir, Sarfraz; Aslam, Rizwan; Ali, Nazim; Hussain, Raheela; Matsuno, Yutaka. |
| Farming communities in water-scarce regions increasingly practice the use of urban wastewater in agriculture. Untreated urban wastewater is generally considered unacceptable for direct use because of potential health risks. However, in many parts of the world, poor farmers in peri-urban areas use untreated wastewater. This situation is considered likely to continue even in the foreseeable future due to the high investment cost associated with the installation of treatment facilities. |
| Tipo: Report |
Palavras-chave: Waste waters; Irrigation water; Water reuse; Economic analysis; Soil properties; Households; Water availability; Water use; Water quality; Groundwater; Public health; Risks; Case studies; Agribusiness; Agricultural and Food Policy; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics; Risk and Uncertainty. |
| Ano: 2002 |
URL: http://purl.umn.edu/44566 |
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| Registros recuperados: 33 | |
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