Retention of dissolved organic carbon from vinasse by a tropical soil, kaolinite, and Fe-oxides

Benke, Mônica B.; Mermut, A. R.; Shariatmadari, H.

doi:10.1016/s0016-7061(98)00143-8

Cited by 48 publications

(31 citation statements)

References 23 publications

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“…This would enable the formation of "metal-organic oxide-ligand" ternary complexes, increasing the Pb retention capacity in soils (McBride, 1994). In this context, it was found a greater sorption capacity of the organic compounds from vinasse on the Fe oxides synthetics (goethite and hematite), which was approximately fivefold the sorption on the surface of kaolinite (Benke et al (1999).…”

Section: Batch Sorption Experimentsmentioning

confidence: 93%

Lead sorption and leaching from an Inceptisol sample amended with sugarcane vinasse

Ribeiro

Lima²,

Guilherme³

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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Vinasse is produced at high amounts by the ethanol and sugarcane spirits industries. Although the effects of vinasse on soil attributes are well elucidated, little is known about its effects on sorption and leaching of lead (Pb) from soils. This work evaluated the Pb sorption and leaching from disturbed topsoil samples (0-20 cm) of an Inceptisol, under the influence of sugarcane vinasse. Pb sorption was evaluated by batch sorption method, using air-dried samples (< 2 mm) treated with pure (100%), and diluted (20%, and 50%) vinasse. The amended soil samples were further reacted with 0.05; 0.10; 0.25; 0.50, and 0.75 mmol L -1 of Pb. To measure the Pb leached, soil columns were packed in PVC tubes, 12-cm long with 4-cm internal diameter filled with 200 g of treated soil. The vinasse doses applied over the columns corresponded to 0 (control), 150 and 300 m 3 ha -1 . Seven days later, 5 mL of a Pb solution (100 mmol L -1 ) was applied on the columns; they were successively leached and Pb was measured in the leachates. The vinasse increased the maximum sorption capacity and binding energy of Pb with the soil when at equilibrium conditions. However, at non-equilibrium conditions, the vinasse enhanced the Pb leaching. From these results, it is advised that special attention must be given to Pb contaminated areas where vinasse is applied. Key words: sugarcane cultivation, organometallic complexes, organic waste, Pb mobility Sorção e lixiviação de chumbo em amostra de um Cambissolo tratado com vinhaça de cana-de-açúcar RESUMO: A vinhaça é produzida em grandes quantidades pela indústria de etanol e de aguardente (cachaça). Embora os efeitos da vinhaça nos atributos do solo sejam bem conhecidos, pouco se sabe sobre eles no comportamento sortivo de chumbo (Pb). Avaliaram-se a sorção e a lixiviação de Pb em amostras da camada superficial (0-20 cm) de um Cambissolo Háplico Tb Distrófico típico (CXbd) sob influência da vinhaça. Para o ensaio de sorção, as amostras foram peneiradas em malha de 2 mm, tratadas com vinhaça diluída 20% e 50% e ao natural (100%), empregando água destilada nas amostras controle. Em seguida, soluções com 0,05; 0,10; 0,25; 0,50 e 0,75 mmol L -1 de Pb foram adicionadas às amostras de solo. Para o ensaio de lixiviação, foram preparadas colunas de solo em tubos de PVC de 12 cm de altura e 4 cm de diâmetro interno, contendo 200 g de solo. As doses de vinhaça aplicadas sobre as colunas foram correspondentes a 150 e 300 m 3 ha -1 . As colunas foram mantidas incubadas com vinhaça por sete dias. Após esse período, foram aplicados sobre cada coluna 5 mL de uma solução de concentração 100 mmol L -1 de Pb e, posteriormente, realizadas sucessivas lixiviações, coletando-se o percolado para determinação do teor de Pb. A vinhaça aumentou a capacidade máxima de adsorção de Pb e sua energia de ligação com o solo em condições de equilíbrio (ensaio de sorção), mas em condições de não equilíbrio (ensaio de lixiviação em colunas), a vinhaça aumentou a lixiviação de Pb. Com base nesses resultados, atenção especial ...

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Section: Batch Sorption Experimentsmentioning

confidence: 93%

Lead sorption and leaching from an Inceptisol sample amended with sugarcane vinasse

Ribeiro

Lima²,

Guilherme³

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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“…Native vege- tation (seasonal semideciduous forest) soils were chosen to avoid residual effects of filter cake and vinasse application on soil properties [21] [22] [23]. These soils were sampled at the 0 -20 cm layer, air-dried, homogenized, and sieved to 2 mm before installing the experiment.…”

Section: Soils and Organic Residuesmentioning

confidence: 99%

Effects of Biochar on the Emissions of Greenhouse Gases from Sugarcane Residues Applied to Soils

Abbruzzini¹,

Zenero²,

Andrade³

et al. 2017

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The sugar and bioethanol industry generate large amounts of filter cake and vinasse, residues that are applied to sugarcane fields as conditioners and organic fertilizers. However, these may be significant sources of greenhouse gases emissions to the atmosphere. This study assessed the impact of sugarcane straw biochar on the emissions of CO 2 , CH 4 and N 2 O promoted by filter cake and vinasse applied to soil, and its effects on the chemical properties and bacterial communities of a Typic Hapludox and a Quartzipsamment. A laboratory incubation was conducted for 100 days with both soils under five treatments: vinasse and filter cake amendment (FV), plus biochar at 10 (FV + B10), 20 (FV + B20) and 50 (FV + B50) Mg•ha −1 , and a control. Soil pH, available P and exchangeable base contents increased with biochar added to sandy soil. Mineral N decreased with biochar addition to both soils. The FV treatment increased CO 2 emissions by 5-fold and 2.4-fold in sandy and clayey soils, respectively, compared to the control. Moreover, FV +B10 increased CO 2 emissions by 4% and 6.4% in sandy and clayey soils, respectively, compared to FV. Cumulative N 2 O emissions in FV were 537% and 125% higher in sandy and clayey soils, respectively, compared to the control. Nevertheless, increasing biochar amendment rates reduced N 2 O emissions from 24% to 34% in sandy soil, and from 14% to 56% in clayey soil. CH 4 emissions were negligible. The effects of filter, vinasse and biochar amendments on soil amelioration were closely related to its buffering capacity. Temporal changes on bacterial community structure were more pronounced in the sandy soil compared to clayey, and indicated that N 2 O emission mitigation in clayey soil was

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“…Este tem cerca de duas vezes o teor de argila e quase três vezes o teor de matéria orgânica que o solo 9. A argila tem o papel de ampliar o fenômeno de sorção, o que retarda a oxidação (Ou et al 1996, Rhue et al 1998, Benke et al 1999, Kaiser & Zech 1999, Shen 1999, Bhandari et al 2000, Balke et al 2002, Sallun 2004 (Walling & Goosen 1973, Sun & Pignatello 1995, Goldenstein et al 1993, Watts et al 2000, Kang & Hua 2005, havendo controvérsia na literatura sobre qual espécie de ferro seria mais eficiente.…”

Section: Comparação Entre Os Solosunclassified

A influência das características dos solos na remediação de locais contaminados através de processos oxidativos avançados com persulfato e reagente de Fenton.

2012

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Abstract:The remediation techniques used in contaminated soils such as "in situ" chemical oxidation aim essentially the mineralization of contaminants, reducing it to CO2 and H2O. The objective of this study is pointing out the results of experiments conducted to investigate how the soil characteristics such as granulometry, assay and nature of clay minerals as well as organic matter can influence in the mineralization performance of linear alkylbenzene in the soil. In some areas of São Paulo city there are contaminated sites by leakage of linear alkylbenzene and many other chemical leakages and site's responsible and local authorities are interested in possible technical solutions to clean it. One possible solution would be in situ treatment through advanced oxidation process; however there is no way how to decide about the best technique because it depends on contaminant substance, reagents used as well as the contaminated soil characteristics. The answer could be scientifically based on bench laboratory experiments properly designed to investigate the factors that control the process performance. The bench lab experiments were conducted with two soils sampled from metropolitan region of São Paulo and contaminated with linear alkyl benzene, used in high and medium voltage underground electrical cables. The mineralization performance was evaluated in soils contaminated with an initial concentration of 10 mg / gr of contaminated soil by oxidation of linear alkyl benzene with Fenton reagent and sodium persulfate. The final results pointed out a considerable mass reduction from 82% to 85% in both soils tested with sodium persulfate thermally activated and by naturally available transition metal Fe 2+ in the soil. The Fenton reagent in the same experiment conditions pointed out a more limited mass reduction performance between 10% and 30%. The previous knowledge of soil characteristics such as particle size ,clay assay , natural carbon content in the soil which influence the sorption / desorption phenomenon as well as the mineral composition of the soil are the key variables to define reagents and the oxidation reaction conditions which contribute to select a proper in situ chemical oxidation technology Keywords: Chemical oxidation. Contaminated soils. Advanced oxidation processes.Resumo: As técnicas de remediação para solos contaminados como os processos de oxidação avançados "in situ" visam essencialmente a mineralização dos contaminantes, reduzindo-os, em última instância, a CO2 e H2O. O objetivo deste estudo foi apresentar os resultados de experimentos conduzidos para investigar como as características do solo, tais como a granulação, o teor e a natureza dos minerais argilosos, e o teor da matéria orgânica influem no desempenho da mineralização do contaminante linar alquilbenzeno no solo. Na área metropolitana de São Paulo há locais onde os solos estão contaminados por esse e outros tipos de vazamentos e os responsáveis e as autoridades estão interessadas em possíveis soluções. Uma possível solução seria o trat...

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Retention of dissolved organic carbon from vinasse by a tropical soil, kaolinite, and Fe-oxides

Cited by 48 publications

References 23 publications

Lead sorption and leaching from an Inceptisol sample amended with sugarcane vinasse

Lead sorption and leaching from an Inceptisol sample amended with sugarcane vinasse

Effects of Biochar on the Emissions of Greenhouse Gases from Sugarcane Residues Applied to Soils

A influência das características dos solos na remediação de locais contaminados através de processos oxidativos avançados com persulfato e reagente de Fenton.

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