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Sylvie Recous - One of the best experts on this subject based on the ideXlab platform.
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Vinasse organic matter quality and mineralization potential as influenced by raw material fermentation and concentration processes
Bioresource Technology, 2008Co-Authors: V. Parnaudeau, N. Condom, R. Oliver, Patrick Cazevieille, Sylvie RecousAbstract:Both dilute and concentrated Vinasse can be spread on agricultural fields or used as organic fertilizer. The effects of different characteristics of the original raw material on the biochemical composition of Vinasse and their C and N mineralization in soil were investigated. Vinasse samples were obtained from similar industrial fermentation processes based on the growth of microorganisms on molasses from different raw material (sugar beet or sugar cane) and Vinasse concentration (dilute or concentrated). The nature of the raw material used for fermentation had the greatest effect on the nature and size of the resistant organic pool. This fraction included aromatic compounds originating from the raw material or from complex molecules and seemed to be quantitatively related to acid-insoluble N. Samples derived from sugar beet were richer in N compounds and induced greater net N mineralization. The effect of evaporation varied with the nature of the raw material. Concentration led to a slight increase in the abundance of phenolic compounds, acid-insoluble fraction, and a slight decrease in the labile fraction of Vinasses partly or totally derived from sugar beet. The effect of the dilute Vinasse from sugar cane was greater. The concentrated Vinasse had a smaller labile fraction, induced N immobilization at the beginning of incubation, and exhibited greater N concentration in the acid-insoluble fraction than the dilute Vinasse.
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Vinasse organic matter quality and mineralization potential, as influenced by raw material, fermentation and concentration processes
Bioresource Technology, 2008Co-Authors: V. Parnaudeau, N. Condom, R. Oliver, Patrick Cazevieille, Sylvie RecousAbstract:Both dilute and concentrated Vinasse can be spread on agricultural fields or used as organic fertilizer. The effects of different characteristics of the original raw material on the biochemical composition of Vinasse and their C and N mineralization in soil were investigated. Vinasse samples were obtained from similar industrial fermentation processes based on the growth of microorganisms on molasses from different raw material (sugar beet or sugar cane) and Vinasse concentration (dilute or concentrated). The nature of the raw material used for fermentation had the greatest effect on the nature and size of the resistant organic pool. This fraction included aromatic compounds originating from the raw material or from complex molecules and seemed to be quantitatively related to acid-insoluble N. Samples derived from sugar beet were richer in N compounds and induced greater net N mineralization. The effect of evaporation varied with the nature of the raw material. Concentration led to a slight increase in the abundance of phenolic compounds, acid-insoluble fraction, and a slight decrease in the labile fraction of Vinasses partly or totally derived from sugar beet. The effect of the dilute Vinasse from sugar cane was greater. The concentrated Vinasse had a smaller labile fraction, induced N immobilization at the beginning of incubation, and exhibited greater N concentration in the acid-insoluble fraction than the dilute Vinasse. © 2007 Elsevier Ltd. All rights reserved.
V. Parnaudeau - One of the best experts on this subject based on the ideXlab platform.
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Vinasse organic matter quality and mineralization potential as influenced by raw material fermentation and concentration processes
Bioresource Technology, 2008Co-Authors: V. Parnaudeau, N. Condom, R. Oliver, Patrick Cazevieille, Sylvie RecousAbstract:Both dilute and concentrated Vinasse can be spread on agricultural fields or used as organic fertilizer. The effects of different characteristics of the original raw material on the biochemical composition of Vinasse and their C and N mineralization in soil were investigated. Vinasse samples were obtained from similar industrial fermentation processes based on the growth of microorganisms on molasses from different raw material (sugar beet or sugar cane) and Vinasse concentration (dilute or concentrated). The nature of the raw material used for fermentation had the greatest effect on the nature and size of the resistant organic pool. This fraction included aromatic compounds originating from the raw material or from complex molecules and seemed to be quantitatively related to acid-insoluble N. Samples derived from sugar beet were richer in N compounds and induced greater net N mineralization. The effect of evaporation varied with the nature of the raw material. Concentration led to a slight increase in the abundance of phenolic compounds, acid-insoluble fraction, and a slight decrease in the labile fraction of Vinasses partly or totally derived from sugar beet. The effect of the dilute Vinasse from sugar cane was greater. The concentrated Vinasse had a smaller labile fraction, induced N immobilization at the beginning of incubation, and exhibited greater N concentration in the acid-insoluble fraction than the dilute Vinasse.
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Vinasse organic matter quality and mineralization potential, as influenced by raw material, fermentation and concentration processes
Bioresource Technology, 2008Co-Authors: V. Parnaudeau, N. Condom, R. Oliver, Patrick Cazevieille, Sylvie RecousAbstract:Both dilute and concentrated Vinasse can be spread on agricultural fields or used as organic fertilizer. The effects of different characteristics of the original raw material on the biochemical composition of Vinasse and their C and N mineralization in soil were investigated. Vinasse samples were obtained from similar industrial fermentation processes based on the growth of microorganisms on molasses from different raw material (sugar beet or sugar cane) and Vinasse concentration (dilute or concentrated). The nature of the raw material used for fermentation had the greatest effect on the nature and size of the resistant organic pool. This fraction included aromatic compounds originating from the raw material or from complex molecules and seemed to be quantitatively related to acid-insoluble N. Samples derived from sugar beet were richer in N compounds and induced greater net N mineralization. The effect of evaporation varied with the nature of the raw material. Concentration led to a slight increase in the abundance of phenolic compounds, acid-insoluble fraction, and a slight decrease in the labile fraction of Vinasses partly or totally derived from sugar beet. The effect of the dilute Vinasse from sugar cane was greater. The concentrated Vinasse had a smaller labile fraction, induced N immobilization at the beginning of incubation, and exhibited greater N concentration in the acid-insoluble fraction than the dilute Vinasse. © 2007 Elsevier Ltd. All rights reserved.
Mónica Coca - One of the best experts on this subject based on the ideXlab platform.
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Protein production in Spirulina platensis biomass using beet Vinasse-supplemented culture media
Food and Bioproducts Processing, 2015Co-Authors: Mónica Coca, Víctor M. Barrocal, Susana Lucas, Gerardo González-benito, María Teresa García-cuberoAbstract:Beet Vinasse is a by-product from molasses fermentation factories, which is difficult to dispose of and involves a severe environmental concern. The present work deals with the valorisation of beet Vinasse by means of the protein production in Spirulina platensis biomass. A preliminary study was firstly planned in batch flasks to analyse the influence of environmental factors on S. platensis protein content and protein productivity in beet Vinasse supplemented culture media. Experimental conditions were selected to operate the photobioreactor that could provide a balance between protein content and cell growth. Then, S. platensis was cultured in an airlift tubular photobioreactor using mineral medium supplemented with beet Vinasse (SVM media). The maximum cell concentration and protein productivity achieved in the tubular photobioreactor were 6.5 ± 0.7 g L-1 and 168 ± 18 mg L-1 d-1, respectively (with SVM 1 g L-1 of Vinasse). The addition of a higher Vinasse concentration (SVM 2 g L-1) led to biomass concentration and protein productivity values (3.6 ± 0.3 g L-1 and 86 ± 6 mg L-1 d-1, respectively) closer to those achieved using unsupplemented mineral medium. Stable biomass concentrations were maintained during the continuous operation, thus demonstrating the ability of S. platensis to adapt to these culture media.
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Production of biomass by Spirulina maxima using sugar beet Vinasse in growth media
New Biotechnology, 2010Co-Authors: Víctor M. Barrocal, Gerardo González-benito, María Teresa García-cubero, Mónica CocaAbstract:Cultivation of Spirulina maxima in media containing Vinasse from beet molasses fermentation has been studied in both batch cultures and a photobioreactor. The results obtained in batch tests showed that S. maxima was able to grow in Schlösser media containing up to 5g/L of Vinasse or alkaline diluted Vinasse (5g/L). Biomass concentrations ranging from 3.5 and 4.8g/L, productivities from 0.15 to 0.24 (g/Ld) and specific growth rates about 0.1d-1 were found. Betaine, an organic nitrogenous compound present in Vinasse, was completely consumed. The continuous operation in a tubular photobioreactor with Schlösser medium supplemented with 2g/L of Vinasse led to S. maxima concentrations about 8g/L and productivities of 0.7g/Ld for an hydraulic retention time of 11d using a light intensity of 3000lux, slightly higher than those achieved with Schlösser medium, showing that the addition of Vinasse presents a positive effect on the growth of the microalgae. © 2010 Elsevier B.V.
Marcelo Zaiat - One of the best experts on this subject based on the ideXlab platform.
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seasonal characterization of sugarcane Vinasse assessing environmental impacts from fertirrigation and the bioenergy recovery potential through biodigestion
Science of The Total Environment, 2018Co-Authors: Lucas Tadeu Fuess, Marcelo Loureiro Garcia, Marcelo ZaiatAbstract:Abstract Sugarcane Vinasse has been widely used as a soil fertilizer in the Brazilian sucro-alcohol industry for recycling potassium and water. However, the potential negative effects from long-term soil fertirrigation represent a major drawback regarding this practice, whereas the application of biodigestion represents an efficient method for reducing the polluting organic load and recovering bioenergy from Vinasse. Regardless of the predicted use for Vinasse, an understanding of the potential of each option is imperative, as the seasonal alterations in the inorganic/organic fractions of Vinasse directly affect its management. In this context, this study presents a detailed compositional characterization of sugarcane Vinasse from a large-scale Brazilian biorefinery throughout the 2014/2015 harvest to assess the environmental effects (due to fertirrigation) and to estimate the biogas energetic potential. Calculated inputs of organic matter into soils due to Vinasse land application were equivalent to the polluting load of populations (117–257 inhab ha −1 ) at least 2-fold greater than the largest Brazilian capital cities (78–70 inhab ha −1 ). Two-phase biodigestion could efficiently reduce the polluting load of Vinasse (23–52 inhab ha −1 ) and eliminate the negative effects from direct sulfide emissions in the environment. However, a high risk of soil sodification could result from using high doses of Na-based alkalizing compounds in biodigestion plants. Finally, the optimized recovery of bioenergy through biogas (13.3–26.7 MW as electricity) could supply populations as large as 305 thousand inhabitants, so that over 30% of the surplus electricity produced by the studied biorefinery could be obtained from biogas. Overall, applying biodigestion in the treatment of Vinasse provides important environmental and energetic gains. However, the benefits of reducing the polluting organic load of Vinasse through bioenergy recovery may lose their effect depending on the alkalizing strategy, indicating that the proper use of chemicals in full-scale biodigestion plants is imperative to attain process sustainability.
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reduction in greenhouse gas emissions from Vinasse through anaerobic digestion
Applied Energy, 2017Co-Authors: Bruna De Souza Moraes, Marcelo Zaiat, Sven G Sommer, Soren O Petersen, Jin Mi TrioloAbstract:Vinasse is a residue from bioethanol production that is produced in large quantities in Brazil and Europe and is applied to fields as a source of plant nutrients (fertirrigation). A side effect of this use is greenhouse gas (GHG) emissions during storage and transport in open channels to fields, and from fertirrigated soils. This study assessed GHG emissions in experiments simulating this Vinasse management system, and the potential for reducing emissions of methane (CH4) and nitrous oxide (N2O) from Vinasse via anaerobic digestion (AD) in biogas plants. During 21days’ storage of untreated Vinasse, 29% of dry matter (DM) and 40% of volatile solids (VS) were lost, which resulted in cumulative CH4 emissions of up to 43.8kgCO2eqkg−1 C-Vinasse. In contrast, there were no CH4 emissions from AD-treated Vinasse (digestate) during storage. GHG emission was related to the biochemical characteristics of the untreated and digested Vinasse. The accumulation of oxidised nitrogen (N) compounds was up to four-fold higher in soil amended with untreated Vinasse than from digestate-amended soil. The N2O emissions from soil amended with untreated Vinasse were also higher than from soil amended with digestate, ranging from 0.173 to 0.193kgCO2eqm−2 in the former and from 0.045 to 0.100kgCO2eqm−2 in the latter. Extrapolation of the results to a Brazilian case indicated that AD treatment prior to storage/transport and field application could reduce GHG emissions from the Vinasse management chain by at least 48%, with further reductions from the use of biogas in power production.
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biogas production within the bioethanol production chain use of co substrates for anaerobic digestion of sugar beet Vinasse
Bioresource Technology, 2015Co-Authors: Bruna De Souza Moraes, Marcelo Zaiat, Jin Mi Triolo, Vanessa Pulido Lecona, Sven G SommerAbstract:Abstract Bioethanol production generates large amounts of Vinasse, which is suitable for biogas production. In this study, the anaerobic digestion of sugar beet Vinasse was optimised using continuous stirred-tank reactors (CSTR) supplemented either with lime fertiliser or with 3% cow manure. In both reactors, the C/N ratio was adjusted by adding straw. The biochemical methane potential (BMP) of Vinasse was 267.4 ± 4.5 L CH 4 kg VS −1 . Due to the low content of macro- and micronutrients and low C/N ratio of Vinasse, biogas production failed when Vinasse alone was fed to the reactor. When co-substrate was added, biogas production achieved very close to the BMP of Vinasse, being 235.7 ± 32.2 L CH 4 kg VS −1 from the fertiliser supplied reactor and 265.2 ± 26.8 L CH 4 kg VS −1 in manure supplied reactor at steady state. Anaerobic digestion was the most stable when cow manure was supplied to digestion of Vinasse.
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Hydrogen and Methane Production, Energy Recovery, and Organic Matter Removal from Effluents in a Two-Stage Fermentative Process
Applied Biochemistry and Biotechnology, 2012Co-Authors: Guilherme Peixoto, Jorge Luis Rodrigues Pantoja-Filho, Marlei Barboza, José Augusto Marcondes Agnelli, Marcelo ZaiatAbstract:This study evaluates the potential for using different effluents for simultaneous H2 and CH4 production in a two-stage batch fermentation process with mixed microflora. An appreciable amount of H2 was produced from parboiled rice wastewater (23.9 mL g−1 chemical oxygen demand [COD]) and Vinasse (20.8 mL g−1 COD), while other effluents supported CH4 generation. The amount of CH4 produced was minimum for sewage (46.3 mL g−1 COD), followed by parboiled rice wastewater (115.5 mL g−1 COD) and glycerol (180.1 mL g−1 COD). The maximum amount of CH4 was observed for Vinasse (255.4 mL g−1 COD). The total energy recovery from Vinasse (10.4 kJ g−1 COD) corresponded to the maximum COD reduction (74.7 %), followed by glycerol (70.38 %, 7.20 kJ g−1 COD), parboiled rice wastewater (63.91 %, 4.92 kJ g−1 COD), and sewage (51.11 %, 1.85 kJ g−1 COD). The relatively high performance of Vinasse in such comparisons could be attributed to the elevated concentrations of macronutrients contained in raw Vinasse. The observations are based on kinetic parameters of H2 and CH4 production and global energy recovery of the process. These observations collectively suggest that organic-rich effluents can be deployed for energy recovery with sequential generation of H2 and CH4.
Patrick Cazevieille - One of the best experts on this subject based on the ideXlab platform.
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Vinasse organic matter quality and mineralization potential as influenced by raw material fermentation and concentration processes
Bioresource Technology, 2008Co-Authors: V. Parnaudeau, N. Condom, R. Oliver, Patrick Cazevieille, Sylvie RecousAbstract:Both dilute and concentrated Vinasse can be spread on agricultural fields or used as organic fertilizer. The effects of different characteristics of the original raw material on the biochemical composition of Vinasse and their C and N mineralization in soil were investigated. Vinasse samples were obtained from similar industrial fermentation processes based on the growth of microorganisms on molasses from different raw material (sugar beet or sugar cane) and Vinasse concentration (dilute or concentrated). The nature of the raw material used for fermentation had the greatest effect on the nature and size of the resistant organic pool. This fraction included aromatic compounds originating from the raw material or from complex molecules and seemed to be quantitatively related to acid-insoluble N. Samples derived from sugar beet were richer in N compounds and induced greater net N mineralization. The effect of evaporation varied with the nature of the raw material. Concentration led to a slight increase in the abundance of phenolic compounds, acid-insoluble fraction, and a slight decrease in the labile fraction of Vinasses partly or totally derived from sugar beet. The effect of the dilute Vinasse from sugar cane was greater. The concentrated Vinasse had a smaller labile fraction, induced N immobilization at the beginning of incubation, and exhibited greater N concentration in the acid-insoluble fraction than the dilute Vinasse.
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Vinasse organic matter quality and mineralization potential, as influenced by raw material, fermentation and concentration processes
Bioresource Technology, 2008Co-Authors: V. Parnaudeau, N. Condom, R. Oliver, Patrick Cazevieille, Sylvie RecousAbstract:Both dilute and concentrated Vinasse can be spread on agricultural fields or used as organic fertilizer. The effects of different characteristics of the original raw material on the biochemical composition of Vinasse and their C and N mineralization in soil were investigated. Vinasse samples were obtained from similar industrial fermentation processes based on the growth of microorganisms on molasses from different raw material (sugar beet or sugar cane) and Vinasse concentration (dilute or concentrated). The nature of the raw material used for fermentation had the greatest effect on the nature and size of the resistant organic pool. This fraction included aromatic compounds originating from the raw material or from complex molecules and seemed to be quantitatively related to acid-insoluble N. Samples derived from sugar beet were richer in N compounds and induced greater net N mineralization. The effect of evaporation varied with the nature of the raw material. Concentration led to a slight increase in the abundance of phenolic compounds, acid-insoluble fraction, and a slight decrease in the labile fraction of Vinasses partly or totally derived from sugar beet. The effect of the dilute Vinasse from sugar cane was greater. The concentrated Vinasse had a smaller labile fraction, induced N immobilization at the beginning of incubation, and exhibited greater N concentration in the acid-insoluble fraction than the dilute Vinasse. © 2007 Elsevier Ltd. All rights reserved.