Effect of enzymatic pretreatment on anaerobic co-digestion of sugar beet pulp silage and vinasse

Ziemiński, Krzysztof; Kowalska-Wentel, Monika

doi:10.1016/j.biortech.2014.12.035

Cited by 65 publications

(14 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A is the biogas production potential (mL/g VS), μ is the maximal biogas production rate (mL/g VS day) while λ is the lag phase (day) or minimum time between the inoculation and biogas appearance, and e is a mathematical constant (2.718282). Kinetic constants A , μ , and λ were determined using the nonlinear regression and Matlab software [ 14 ].…”

Section: Methodsmentioning

confidence: 99%

Effect of Different Sugar Beet Pulp Pretreatments on Biogas Production Efficiency

Ziemiński

Kowalska-Wentel

2016

Appl Biochem Biotechnol

Self Cite

View full text Add to dashboard Cite

The objective of this study was to determine the effect of different sugar beet pulp (SBP) pretreatments on biogas yield from anaerobic digestion. SBP was subjected to grinding, thermal-pressure processing, enzymatic hydrolysis, or combination of these pretreatments. It was observed that grinding of SBP to 2.5-mm particles resulted in the cumulative biogas productivity of 617.2 mL/g volatile solids (VS), which was 20.2 % higher compared to the biogas yield from the not pretreated SBP, and comparable to that from not ground, enzymatically hydrolyzed SBP. The highest cumulative biogas productivity, 898.7 mL/g VS, was obtained from the ground, thermal-pressure pretreated and enzymatically hydrolyzed SBP. The latter pretreatment variant enabled to achieve the highest glucose concentration (24.765 mg/mL) in the enzymatic hydrolysates. The analysis of energy balance showed that the increase in the number of SBP pretreatment operations significantly reduced the gain of electric energy.

show abstract

Section: Methodsmentioning

confidence: 99%

Effect of Different Sugar Beet Pulp Pretreatments on Biogas Production Efficiency

Ziemiński

Kowalska-Wentel

2016

Appl Biochem Biotechnol

Self Cite

View full text Add to dashboard Cite

show abstract

“…Lignocellulosic biomass often requires treatment before processing. Zieminski et al [41] showed that the partial enzymatic degradation of sugar beet pulp biomass enabled biogas production to be increased considerably. Liu et al [8] reported that after the distillation of sugarcane bagasse, the components of the residual stillage were more available for anaerobic digestion.…”

Section: Mass and Energy Balancementioning

confidence: 99%

Integrated Bioethanol Fermentation/Anaerobic Digestion for Valorization of Sugar Beet Pulp

et al. 2017

View full text Add to dashboard Cite

Large amounts of waste biomass are generated in sugar factories from the processing of sugar beets. After diffusion with hot water to draw the sugar from the beet pieces, a wet material remains called pulp. In this study, waste sugar beet pulp biomass was enzymatically depolymerized, and the obtained hydrolyzates were subjected to fermentation processes. Bioethanol, biomethane, and biohydrogen were produced directly from the substrate or in combined mode. Stillage, a distillery by-product, was used as a feedstock for anaerobic digestion. During biosynthesis of ethanol, most of the carbohydrates released from the sugar beet pulp were utilized by a co-culture of Saccharomyces cerevisiae Ethanol Red, and Scheffersomyces stipitis LOCK0047 giving 12.6 g/L of ethanol. Stillage containing unfermented sugars (mainly arabinose, galactose and raffinose) was found to be a good substrate for methane production (444 dm 3 CH 4 /kg volatile solids (VS)). Better results were achieved with this medium than with enzymatic saccharified biomass. Thermal pre-treatment and adjusting the pH of the inoculum resulted in higher hydrogen production. The largest (p < 0.05) hydrogen yield (252 dm 3 H 2 /kg VS) was achieved with sugar beet stillage (SBS). In contrast, without pre-treatment the same medium yielded 35 dm 3 H 2 /kg VS. However, dark fermentation of biohydrogen was more efficient when sugar beet pulp hydrolyzate was used.

show abstract

“…An Agilent 7890A GC chromatograph with a TCD detector and a 2D column system (connected by a pneumatic switch): molecular sieve 5A, 60/80 mesh 6 ft × 1/8 in and Porapak Q 80/100 mesh, 6 ft × 1/8 in. was used to detection of methane concentration [50].…”

Section: Methodsmentioning

confidence: 99%

Production of Methane, Hydrogen and Ethanol from Secale cereale L. Straw Pretreated with Sulfuric Acid

et al. 2020

View full text Add to dashboard Cite

The study describes sulfuric acid pretreatment of straw from Secale cereale L. (rye straw) to evaluate the effect of acid concentration and treatment time on the efficiency of biofuel production. The highest ethanol yield occurred after the enzyme treatment at a dose of 15 filter paper unit (FPU) per gram of rye straw (subjected to chemical hydrolysis with 2% sulfuric acid (SA) at 121 °C for 1 h) during 120 h. Anaerobic digestion of rye straw treated with 10% SA at 121 °C during 1 h allowed to obtain 347.42 L methane/kg volatile solids (VS). Most hydrogen was released during dark fermentation of rye straw after pretreatment of 2% SA, 121 °C, 1 h and 1% SA, 121 °C, 2 h—131.99 and 134.71 L hydrogen/kg VS, respectively. If the rye straw produced in the European Union were processed into methane, hydrogen, ethanol, the annual electricity production in 2018 could reach 9.87 TWh (terawatt-hours), 1.16 TWh, and 0.60 TWh, respectively.

show abstract

Effect of enzymatic pretreatment on anaerobic co-digestion of sugar beet pulp silage and vinasse

Cited by 65 publications

References 30 publications

Effect of Different Sugar Beet Pulp Pretreatments on Biogas Production Efficiency

Effect of Different Sugar Beet Pulp Pretreatments on Biogas Production Efficiency

Integrated Bioethanol Fermentation/Anaerobic Digestion for Valorization of Sugar Beet Pulp

Production of Methane, Hydrogen and Ethanol from Secale cereale L. Straw Pretreated with Sulfuric Acid

Contact Info

Product

Resources

About