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| Registros recuperados: 17 | |
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| Cardoso,Paulo H. S.; Sousa,Izabelle de P.; Junio,Geraldo R. Zuba; Gonçalves,Paula W. B.; Sampaio,Regynaldo A.. |
| ABSTRACT This study aimed to evaluate the total contents of As, Cu and Zn in the profile of a Haplic Cambisol cultivated with crambe and corn and fertilized with sanitary sewage sludge and to compare them with those obtained in other forms of fertilization, as well as the content of metals in the grain of these crops. Two experiments were carried out in the field, one with maize cultivation and another with crambe, both were delineated as randomized blocks with four treatments and six replicates, which were: without fertilization, fertilization with sewage sludge dewatered and dried in the sun, with dry sewage sludge and with mineral fertilizers. At the end of the experiments soil samples were collected at 15, 50, 100, 150 and 200 cm depth for analysis of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biosolid; Crambe abyssinica; Organic fertilization; Zea mays. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000300426 |
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| Zuba Junio,Geraldo R.; Sampaio,Regynaldo A.; Nascimento,Altina L.; Fernandes,Luiz A.; Lima,Natália N. de; Carneiro,João P.. |
| ABSTRACTThis study aimed to evaluate the chemical attributes of an Inceptisol cultivated with castor bean (Ricinus communis L.), variety ‘BRS Energia’, fertilized with sewage sludge compost and calcium (Ca) and magnesium (Mg) silicate. The experiment was conducted at the ICA/UFMG, in a randomized block design, using a 2 x 4 factorial scheme with three replicates, and the treatments consisted of two doses of Ca-Mg silicate (0 and 1 t ha-1) and four doses of sewage sludge compost (0, 23.81, 47.62 and 71.43 t ha-1, on dry basis). Soil organic matter (OM), pH, sum of bases (SB), effective cation exchange capacity (CEC(t)), total cation exchange capacity (CEC(T)), base saturation (V%) and potential acidity (H + Al) were evaluated. There were no significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic fertilizer; Biosolid; Steel waste. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001101107 |
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| Braga,Fabíola M.; Cardoso,Paulo H. S.; Barbosa,Mário H. C.; Rodrigues,Márcio N.; Sampaio,Regynaldo A.; Fernandes,Luiz A.. |
| ABSTRACT The pursuit for waste recovery has been the best way to contribute to environmental sustainability. The mix of sewage sludge (SS) from Sewage Treatment Plant with diatomaceous material containing oil (DE), used as a filter in biofuel production, can form a substrate rich in minerals and organic matter through vermicomposting. Therefore, this study aimed to produce vermicompost using worms, Eisenia foetida, from a pre-compost (PC) of sewage sludge and garden pruning residues mixed with different proportions of DE in relation to PC: 0; 7.53; 15.06; 22.59; and 30.12% v/v. The design was randomized complete blocks with five treatment replicates. The chemical characteristics of the vermicompost were analyzed after a period of four months. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biosolid; Eisenia foetida; Organic compost. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000800519 |
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| Moretti,Sarah Mello Leite; Bertoncini,Edna Ivani; Abreu-Junior,Cassio Hamilton. |
| Sewage sludge (SS) has been widely used as organic fertilizer. However, its continuous use can cause imbalances in soil fertility as well as soil-water-plant system contamination. The study aimed to evaluate possible improvements in the chemical and microbiological characteristics of domestic SS, with low heavy metal contents and pathogens, through the composting process. Two composting piles were set up, based on an initial C/N ratio of 30:1, with successive layers of tree pruning waste and SS. The aeration of piles was performed by mechanical turnover when the temperature rose above 65 ºC. The piles were irrigated when the water content was less than 50 %. Composting was conducted for 120 days. Temperature, moisture content, pH, electrical conductivity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biosolid; Compost; Pathogen; Soil fertility. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000500432 |
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| Revoredo,Marcos Donizeti; Melo,Wanderley José de. |
| The role of nickel in soils of tropical areas under the application of sewage sludge is still not very well known. This study was carried out under greenhouse conditions in Jaboticabal, São Paulo State, Brazil, with the objective of evaluating the impact of the application of sewage sludge previously contaminated with rates of nickel (329, 502, 746 and 1119 mg kg-1, dry basis) on a soil cropped with sorghum, in relation to soil enzyme activity and soil microbial biomass. Soil samples were collected at the beginning and the end of the experiment. The experimental design was completely randomized, with five treatments (control and four rates of Ni in the sewage sludge) and four replications. C and N of the soil microbial biomass and enzyme activities (acid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heavy metal; Biosolid; Acid phosphatase; Alkaline phosphatase; Sorghum. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000100009 |
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| Putti,Fernando F.; Lanza,Marcio H.; Filho,Hélio G.; Cremasco,Camila P.; Souza,Angela V.; Gabriel Filho,Luís R. A.. |
| ABSTRACT The present work aimed to develop mathematical fuzzy models to evaluate the effects of different doses of sewage sludge and irrigation with wastewater and potable water. Such models were elaborated from an experiment carried out at the Faculty of Agronomic Sciences, in the Department of Soil and Environmental Resources, from the Sao Paulo State University, in Brazil. The experiment was carried out in a randomized block design, in a 6 × 2 factorial scheme, with 6 doses of sewage sludge (0, 25, 50, 75, 100 and 125 of the recommended dose of N), and in the presence and absence of wastewater. In the development of the fuzzy model, the Mamdani method was used for the defuzzification. As input variables, the doses of sewage sludge and the types of water... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fuzzy logic; Organic matter; Biosolid; Reuse water; Mamdani method. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000200204 |
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| Cruz,Eleandro Silva da; Medici,Leonardo Oliveira; Leles,Paulo Sérgio dos Santos; Ambrozim,Clodoaldo Spadeto; Souza,Wendell Luccas; Carvalho,Daniel Fonseca de. |
| ABSTRACT Optimization of the use of water and the possibility of using residues as substrate in the black pepper production chain can yield economic and environmental benefits. The objective of this study was to evaluate the biometric and physiological traits of black pepper plantlets (Piper nigrum L.), cv. Bragantina, at different irrigation levels and soilless substrates. Plantlets were grown for 120 days on three substrates [biosolid + crushed coconut fiber (3:1, by volume); biosolid + granitic rock powder (3:1, by volume); and biosolid + crushed coconut fiber + granitic rock powder (2:1:1, by volume)] and at five irrigation levels [36 % (very low); 55 % (low); 85 % (moderate); 100 % (well-irrigated); and 126 % of the reference irrigation level... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piper nigrum L; Deficit irrigation; Potting mix; Biosolid; Granitic rock powder. |
| Ano: 2022 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000100601 |
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| Zapparoli, Irene Domenes; Pizaia, Marcia Goncalves. |
| O adubo orgânico, proveniente de resíduos sólidos de estações de tratamento de esgoto, biossólido, vem sendo estudado há aproximadamente duas décadas quanto aos aspectos metodológicos, tecnológicos, sanitários, agronômicos e sócio-econômicos. Nesse sentido, este estudo se prende as questões sócio-econômicas do biossólido, de forma a estudar a capacidade assimilativa do adubo, como bem o aspecto econômico em conformidade à com a sua capacidade de regeneração. Isso significa que o seu preço como bem econômico não reflete o verdadeiro valor da totalidade da preservação ambiental. O objetivo deste artigo consiste em avaliar a receptividade dos produtores rurais de Londrina e região, através de uma investigação da gestão ambiental na utilização do biossólido... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Produtores rurais; Adubo orgânico; Reciclagem; Rural producers; Biosolid; Receptivity; Crop Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/109118 |
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| Pires,Adriana Marlene Moreno; Marchi,Giuliano; Mattiazzo,Maria Emília; Guilherme,Luiz Roberto Guimarães. |
| The aim of this work was to quantify low molecular weight organic acids in the rhizosphere of plants grown in a sewage sludge-treated media, and to assess the correlation between the release of the acids and the concentrations of trace-elements in the shoots of the plants. The species utilized in the experiment were cultivated in sand and sewage sludge-treated sand. The acetic, citric, lactic, and oxalic acids, were identified and quantified by high performance liquid chromatography in samples collected from a hydroponics system. Averages obtained from each treatment, concentration of trace elements in shoots and concentration of organic acids in the rhizosphere, were compared by Tukey test, at 5% of probability. Linear correlation analysis was applied to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biosolid; Exudates; Heavy metals; Availability. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000700002 |
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| Albuquerque,Hermann C. de; Junio,Geraldo R. Zuba; Sampaio,Regynaldo A.; Fernandes,Luiz A.; Prates,Fabiano B. S.; Amaral Sobrinho,Nelson M. B. do. |
| ABSTRACTThis study aimed to evaluate the residual effect of sewage sludge fertilization on yield and nutrition of sunflower in its second cycle. The experiment was carried out from April to August 2012. The treatments consisted of four doses of sewage sludge (0, 10, 20 and 30 t ha-1, dry basis) applied in the first cycle of sunflower, distributed in a randomized block design, with six replicates. Sunflower stem diameter, plant height, capitulum diameter and yield increased with the increment in sewage sludge doses, with maximum values observed with the dose of 30 t ha-1. The contents of calcium and magnesium in the soil, pH, sum of bases, effective and potential cation exchange capacity and base saturation increased, while potential acidity and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oilseeds; Biosolid; Organic fertilization. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001001005 |
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| Abreu,Alan H. M. de; Marzola,Leticia B.; Melo,Lucas A. de; Leles,Paulo S. dos S.; Abel,Elton L. S.; Alonso,Jorge M.. |
| ABSTRACT This study aimed to verify the potential of urban solid wastes as substrate for production of seedlings of Lafoensia pacari. Five treatments were tested, four with solid wastes and one standard substrate, namely: sewage sludge from Alegria Wastewater Treatment Plant (WTP); sewage sludge from Ilha do Governador WTP; sewage sludge from Sarapuí WTP; domestic garbage compost (Fertlurb); and a commercial substrate made of biostabilized pine bark (standard substrate). The wastes received 20% (in volume) of shredded coconut fiber. At 105 days after sowing, the seedlings were evaluated for different quality parameters. Seedlings produced with Sarapuí WTP sewage sludge showed the best results in all the parameters, followed by seedlings produced with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sewage sludge; Urban waste; Biosolid. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200083 |
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| Bueno,Mateus Marques; Leles,Paulo Sérgio Santos; Pinto,Marinaldo Ferreira; Resende,Alexander Silva de; Couto,Beatriz Rodrigues Monteiro; Carvalho,Daniel Fonseca de. |
| ABSTRACT The increase in the demand for seedlings of native tree species makes it important to determine their water and light requirements, which are important factors in their production, in terms of costs and time. Water use and productivity in the growth of seedlings of Dalbergia nigra (Vell.) Allemão ex Benth., Apuleia leiocarpa (Vogel) J.F. Macbr and Hymenaea courbaril L. were determined under four light levels (three shading levels and control), using a randomized block design with four replicates. Height, stem diameter, leaf area and biomass, as well as Dickson quality index (DQI) were evaluated. The seedlings were transplanted into 280-cm3 plugs, filled with substrate composed of pure biosolids, and irrigated by a drip system with automatic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Automatic irrigation management; Biosolid; Jacarandá-da-Bahia; Garapa; Jatobá.. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542021000100207 |
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| Albuquerque,Hermann C. de; Zuba Junio,Geraldo R.; Sampaio,Regynaldo A.; Fernandes,Luiz A.; Zonta,Everaldo; Barbosa,Cristiane F.. |
| ABSTRACT The aim of this study was to evaluate the effect of thermally dried sewage sludge on soil fertility, growth and yield of sunflower. The experiment was conducted in a Nitosol area of the Institute of Agricultural Sciences of the Federal University of Minas Gerais, in Montes Claros-MG, Brazil. The treatments consisted of four doses of sewage sludge (0, 10, 20 or 30 t ha-1, dry weight basis), with six replicates in a randomized block design. The levels of nutrients in soil and plant, soil fertility indices, stem diameter, plant height, head diameter and grain yield were evaluated. Stem diameter, plant height, head diameter and grain yield increased with increasing doses of sewage sludge. The application of the residue increased linearly the contents... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helianthus annuus L.; Biosolid; Organic fertilization; Soil pollution. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000600553 |
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| Registros recuperados: 17 | |
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