Characterization of the sulfate reduction process in the anaerobic digestion of a very high strength and sulfate rich vinasse

Barrera, Ernesto L.; Spanjers, Henri; Romero, Osvaldo Romero; Rosa, Elena; Dewulf, Jo

doi:10.1016/j.cej.2014.03.057

Cited by 71 publications

(64 citation statements)

References 27 publications

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“…Experimental observations from a characterization study of the sulfate reduction process in the anaerobic digestion of a very high strength and sulfate-rich vinasse (Barrera et al, 2014) were used for model calibration and validation. During these experiments a 3.5 L UASB reactor was operated under dynamic conditions for a period of 75 days (following a 55 day start-up period).…”

Section: Experimental Datamentioning

confidence: 99%

“…However, in systems with high sulfate concentrations volatile fatty acids (butyric, propionic and acetic) have, to be included as electron donors in the sulfate degradation reactions in addition to hydrogen (Batstone, 2006). Barrera et al (2014) provided a characterization of the sulfate reduction process in the anaerobic digestion of a very high strength and sulfate rich vinasse. The authors demonstrated that propionate sulfate reducing bacteria considerably contribute to propionic acid degradation at SO 4 2À /COD ratios 0.10 as a result of hydrogen limitation.…”

Section: Introductionmentioning

confidence: 99%

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Modeling the anaerobic digestion of cane-molasses vinasse: Extension of the Anaerobic Digestion Model No. 1 (ADM1) with sulfate reduction for a very high strength and sulfate rich wastewater

et al. 2015

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Section: Experimental Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling the anaerobic digestion of cane-molasses vinasse: Extension of the Anaerobic Digestion Model No. 1 (ADM1) with sulfate reduction for a very high strength and sulfate rich wastewater

et al. 2015

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“…Removal of SOx from biogas can be accomplished, among other technologies, through physical processes, such as sulfur-specific membrane filters, or through biological processes (Barrera et al, 2014). Lebrero et al (2016) evaluated biotrickling filters (BTFs) and algalbacterial photobioreactors (PBRs) as alternative to membrane removal.…”

Section: Ad Of Vinasse: Operation Energy Generation and Digestate Usementioning

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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“…A COD/S ratio higher than 10 (COD/ SO methanogens and avoids the failure of the anaerobic process [9,10]. However, a exception was reported by a recent study that though a COD/SO 4 2 ratio was as high as 5, anaerobic rector in digesting high strength and sulfate rich vinasse eventually failed due to the toxicity of H 2 S (free form of sulfide) on methanogens and SRBs [33]. Another exception was given in another recent study that though COD/SO 4 2À ratio was as below as 1 (COD/S = 3), a UASB can remove 80% of COD and 30% of sulfate with HRT above 6 h and OLR below 12.3 g COD/L/d in treating sulfate-rich wastewater containing ethanol and acetate [34].…”

Section: Effect Of High Concentrations Of Inorganic and Organic Sulfumentioning

confidence: 97%

UASB treatment of chemical synthesis-based pharmaceutical wastewater containing rich organic sulfur compounds and sulfate and associated microbial characteristics

Niu

Zhang

et al. 2015

Chemical Engineering Journal

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h i g h l i g h t sSuccessful application of UASB in treatment of rich organic S-bearing wastewater. Sulfate in effluent was higher than influent at COD/SO 4 2À ratio of 8 and 5.Conversely, sulfate in influent was higher than effluent at COD/SO 4 2À ratio of 1.5.Archaea and bacterial community varied greatly with altered OLR. Some species can be responsible for S release from organic sulfur compounds.a r t i c l e i n f o a b s t r a c tThe feasibility of treating of chemical synthesis-based pharmaceutical wastewater containing rich organic sulfur compounds and sulfate using an upflow anaerobic sludge blanket (UASB) was investigated. The initial COD/SO 4 2À ratio of 8 in the wastewater varied from 5 to 1.5 after adding sulfate. Of interest that under the condition of COD/SO 4 2À at 8 and 5, despite the simultaneous generation of sulfide and hydrogen sulfide, the sulfate concentration in the effluent was higher than in the influent. This is due to the sulfur release in the form of sulfate during the degradation of these organic sulfur compounds in this reactor. Conversely, at COD/SO 4 2À of 1.5, influent sulfate was higher than effluent sulfate due to reduction of more sulfates in the reactor. At COD/SO 4 2À of 8, for practical application, the optimum OLR was found to be 8 kg COD/m 3 /d, where a nearly 70% COD reduction occurred with biogas containing 63% methane. In this stage, the distribution of the archaea and bacterial community varied greatly with altered OLR (accompanied with prolonged operation time). Some species, such as Lysinibacillus sphaericus, Clostridium cellulovorans were expected to be partly responsible for S release from some organic sulfur compounds in the reactor. By increasing the sulfate loading at a COD/SO 4 2À ratio up to 1.5 resulted in a light inhibition of methanogenesis due to the high sulfide concentration (1212 SO 4 2À -S mg/L) with no obvious suppression of sulfidogenesis.

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Characterization of the sulfate reduction process in the anaerobic digestion of a very high strength and sulfate rich vinasse

Cited by 71 publications

References 27 publications

Modeling the anaerobic digestion of cane-molasses vinasse: Extension of the Anaerobic Digestion Model No. 1 (ADM1) with sulfate reduction for a very high strength and sulfate rich wastewater

Modeling the anaerobic digestion of cane-molasses vinasse: Extension of the Anaerobic Digestion Model No. 1 (ADM1) with sulfate reduction for a very high strength and sulfate rich wastewater

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

UASB treatment of chemical synthesis-based pharmaceutical wastewater containing rich organic sulfur compounds and sulfate and associated microbial characteristics

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