Biochar decreases dissolved organic carbon but not nitrate leaching in relation to vinasse application in a Brazilian sugarcane soil

Eykelbosh, Angela; Johnson, Mark S.; Couto, Eduardo Guimarães

doi:10.1016/j.jenvman.2014.09.033

Cited by 89 publications

(42 citation statements)

References 56 publications

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“…Hollister et al (2013), in sorption experiments carried out using biochar from corn or oak, observed the inability of biochar to retain NO3 -. Eykelbosh et al (2015) found that biochar from sugarcane filtercake did not lessen NO3 -leaching from the soil. These contradictory results are likely because of the differences in type of biochar, type of soil and level of biochar applied.…”

Section: Introductionmentioning

confidence: 89%

Effect of biochar amendment on nitrate retention in a silty clay loam soil

et al. 2016

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Biochar incorporation into agricultural soils has been proposed as a strategy to decrease nutrient leaching. The present study was designed to assess the effect of biochar on nitrate retention in a silty clay loam soil. Biochar obtained from the pyrogasification of fir wood chips was applied to soil and tested in a range of laboratory sorption experiments. Four soil treatments were considered: soil only (control), soil with 2, 4 and 8% of biochar by mass. The Freundlich sorption isotherm model was used to fit the adsorbed amount of nitrate in the soil-biochar mixtures. The model performed very well in interpreting the experimental data according to a general linear regression (analysis of co-variance) statistical approach. Nitrate retention in the soilbiochar mixtures was always higher than control, regardless the NO3 -concentration in the range of 0-400 mg L -1 . Different sorption capacities and intensities were detected depending on the biochar application rate. The highest adsorption capacity was observed in the soils added with 2 and 4% of biochar, respectively. From the results obtained is possible to infer that nitrate retention is higher at lower biochar addition rate to soil (2 and 4%) and at lower nitrate concentration in the soil water solution. These preliminary laboratory results suggest that biochar addition to a typical Mediterranean agricultural soil could be an effective management option to mitigate nitrate leaching.

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Section: Introductionmentioning

confidence: 89%

Effect of biochar amendment on nitrate retention in a silty clay loam soil

et al. 2016

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“…Besides decreasing the costs involved with chemical fertilizers (Jiang et al, 2012), completely supplying phosphorus (Moran-Salazar et al, 2016) and being of low capital cost, vinasse utilization in fertirrigation practices could be considered of certain level of environmental concern (Sparovek et al, 2009). Fertirrigation practices have been linked with increase in eutrophication of waterbodies and the formation of dead aquatic bodies in Brazil and in other countries (Eykelbosh et al, 2015). The correct application of fertirrigation has proven not to impact the physical, chemical, and biological properties of the soil to which vinasse is applied (Christofoletti et al, 2013), such as, and levels up to 300 m 3 vinasse ha −1 with potassium levels of 3-4 kg m −3 do not impact negatively the soil (Penatti et al, 1988).…”

Section: Fertirrigation Practices With Vinassementioning

confidence: 99%

Vinasse from Sugarcane Ethanol Production: Better Treatment or Better Utilization?

Reis

2017

Front. Energy Res.

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Ethanol production from sugarcane in Brazil is a well-established industry, with relatively simple operations and high yield. The ethanol primarily serves as a renewable fuel blending with gasoline and diesel to increase the energy security in Brazil. Several environmental concerns are emerged around the by-products from this industry. Vinasse, the liquid fraction generated from the rectification and distillation operations of ethanol, is a sulfur-rich, low pH, dark-colored, and odorous effluent, produced at volumes as high as 20-fold of ethanol. Traditional wastewater treatments, such as bioprocessing, advanced oxidative processes, anaerobic digestion (AD), and chemical-based processes, have been applied to vinasse management. Despite most of its utilization being in fertirrigation practices, vinasse may represent a key factor in enhancing profitability and environmental outcomes of a sugarcane-to-ethanol plant. The application of some upgrade solutions to sugarcane-derived vinasse may represent additional sources of energy, production of animal feed components, and reduction in water consumption within a plant. The use of mature technologies, yet not widespread in the sugarcane-to-ethanol industry, could help attenuate environmental concerns. Oxidation and chemical processes, AD, and microbial fermentation have been presented as alternative impactful alternatives to (i) reduce its organic and mineral load, converting it to a feedstock with fewer environmental applications when applied as fertilizer and (ii) to convert organic matter and nutrients to a nutritious biomass, simultaneously increasing water reclamation potential by plants. This mini-review article provides a critical and comprehensive summary of the alternatives developed or under development to vinasse management.

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“…The application of animal, industrial, and municipal wastes is also prevalent throughout the world as they can be an excellent source of nutrients and organic matter (Bhattarai et al, 2011). Several studies have evaluated the effects of composted organic wastes such as animal manure and sewage sludge compost on soil properties, quality, and productivity, dissolved or-72 Z. Hazbavi and S. H. R. Sadeghi: Potential effects of vinasse as a soil amendment ganic carbon and nitrate leaching (e.g., Adler and Sikora, 2005;Margesin et al, 2006;Bastida et al, 2007;Karami et al, 2012;Zornoza et al, 2013;Eykelbosh et al, 2015), but there are relatively few studies (e.g., Gonzalez, 2006b, 2008;Gholami et al, 2013;Sadeghi et al, 2015a, b;Cerdà et al, 2016;Prosdocimi et al, 2016) that evaluate the effect of organic waste and residues on runoff and soil loss control.…”

Section: Introductionmentioning

confidence: 99%

Potential effects of vinasse as a soil amendment to control runoff and soil loss

Hazbavi

Sadeghi

2016

SOIL

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Abstract. Application of organic materials are well known as environmental practices in soil restoration, preserving soil organic matter and recovering degraded soils of arid and semiarid lands. Therefore, the present research focused on evaluating the effectiveness of vinasse, a byproduct mainly of the sugar-ethanol industry, on soil conservation under simulated rainfall. Vinasse can be recycled as a soil amendment due to its organic matter content. Accordingly, the laboratory experiments were conducted by using 0.25 m 2 experimental plots at 20 % slope and rainfall intensity of 72 mm h −1 with 0.5 h duration. The effect of vinasse was investigated on runoff and soil loss control. Experiments were set up as a control (with no amendment) and three treated plots with doses of 0.5, 1, and 1.5 L m −2 of vinasse subjected to simulated rainfall. Laboratory results indicated that vinasse at different levels could not significantly (P > 0.05) decrease the runoff amount and soil loss rate in the study plots compared to untreated plots. The average amounts of minimum runoff volume and soil loss were about 3985 mL and 46 g for the study plot at a 1 L m −2 level of vinasse application.

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Biochar decreases dissolved organic carbon but not nitrate leaching in relation to vinasse application in a Brazilian sugarcane soil

Cited by 89 publications

References 56 publications

Effect of biochar amendment on nitrate retention in a silty clay loam soil

Effect of biochar amendment on nitrate retention in a silty clay loam soil

Vinasse from Sugarcane Ethanol Production: Better Treatment or Better Utilization?

Potential effects of vinasse as a soil amendment to control runoff and soil loss

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