scholarly journals Enhancement of Methane Production in Thermophilic Anaerobic Co-Digestion of Exhausted Sugar Beet Pulp and Pig Manure

2019 ◽  
Vol 9 (9) ◽  
pp. 1791 ◽  
Author(s):  
Xiomara Gómez-Quiroga ◽  
Kaoutar Aboudi ◽  
Carlos José Álvarez-Gallego ◽  
Luis Isidoro Romero-García
Keyword(s):  
Sugar Beet ◽  
Methane Production ◽  
Volatile Fatty Acids ◽  
Biogas Production ◽  
Methanogenic Archaea ◽  
Sugar Beet Pulp ◽  
Pig Manure ◽  
Thermophilic Conditions ◽  
Beet Pulp ◽  
The Individual

In this paper, the viability of thermophilic anaerobic co-digestion of exhausted sugar beet pulp (ESBP) and pig manure (PM) was evaluated. The effect of the proportion of ESBP on biogas production was investigated by using a series of lab-scale batch assays, in duplicates. The following five ESBP:PM mixture ratios were studied: 0:100, 10:90, 25:75, 50:50, and 100:0. The highest cumulative methane production (212.4 mL CH4/g VSadded) was reached for the mixture 25:75. The experimental results showed that the increase in the proportion of ESBP in the mixture led to the distortion of the process, due to acidification by the volatile fatty acids generated. Acetic acid was the predominant acid in all the cases, representing more than 78% of the total acidity. Moreover, the results obtained by operating at thermophilic temperatures have been compared with those obtained in a previous study conducted at mesophilic temperatures. The results have shown that in the individual digestion of ESBP, the activity of acetoclastic methanogens was affected in both temperatures, but especially in thermophilic conditions. Thus, the methane produced in the individual thermophilic digestion of ESBP came almost entirely from the activity of hydrogen-utilizing methanogenic archaea.

Possibilities of joint treatment of spent sugar beet pulp and waste water from a sugar factory

2012 ◽  
pp. 756-761 ◽  
Author(s):  
Miroslav Hutnan ◽  
Štefan Tóth ◽  
Igor Bodík ◽  
Nina Kolesárová ◽  
Michal Lazor ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Sugar Beet ◽  
Pilot Plant ◽  
Biogas Production ◽  
Sugar Beet Pulp ◽  
Spare Capacity ◽  
Anaerobic Reactor ◽  
Sugar Factory ◽  
Beet Pulp ◽  
Joint Treatment

The possibility of joint treatment of spent sugar beet pulp and wastewater from a sugar factory was studied in this work. Works focused on processing of spent sugar beet pulp separately or together with other substrates can be found in the literature. In the case of some sugar factories, which have spare capacity in the anaerobic reactor on an anaerobic-aerobic wastewater treatment plant, joint processing of spent sugar beet pulp and wastewater from the sugar factory might be an interesting option. The results of the operation of a pilot plant of an anaerobic reactor with a capacity of 3.5 m3 are discussed. Operation of the pilot plant confirmed the possibility of cofermentation of these materials. The organic loading rate achieved in the anaerobic reactor was higher than 6 kg/(m3·d) (COD), while more than half of the load was provided by spent sugar beet pulp. The addition of sugar beet pulp decreased the concentration of ammonia nitrogen in the anaerobic reactor and it was even necessary to add nitrogen. However, the nitrogen content in sludge water depends on the C:N ratio in the processed sugar beet pulp, therefore this knowledge cannot be generalized. About 1.5 to 2-fold biogas production can be expected from the cofermentation of wastewater with sugar beet pulp in an anaerobic reactor, compared with the biogas production from just wastewater treatment.

The use of biomagnetism for biogas production from sugar beet pulp

2020 ◽  
Vol 164 ◽  
pp. 107770
Author(s):  
M. Pessoa ◽  
M.A. Motta Sobrinho ◽  
M. Kraume
Keyword(s):  
Sugar Beet ◽  
Biogas Production ◽  
Sugar Beet Pulp ◽  
Beet Pulp

Biogas production from hydrolyzed sugar beet pulp and from top and tails

2020 ◽  
pp. 427-430
Author(s):  
Birger Langebeck ◽  
Charlotte Pipper ◽  
Jesper Jeppesen
Keyword(s):  
Wastewater Treatment ◽  
Sugar Beet ◽  
Energy Policy ◽  
Suspended Solids ◽  
Biogas Production ◽  
Sugar Beet Pulp ◽  
Sugar Production ◽  
Energy Potential ◽  
Anaerobic Wastewater Treatment ◽  
Beet Pulp

In accordance with Nordzucker’s energy policy, Nordzucker has launched two projects to exploit the energy potential in side streams from sugar production: 1 Enhanced biogas production from anaerobic wastewater treatment with enzymatically hydrolyzed sugar beet pulp 2 Biogas production from tops and tails Before the two projects were started, the biogas potential in beet pulp and tops and tails was tested at Teknologisk Institut, Aarhus, Denmark. The biogas potential in both beet pulp and tops and tails was almost at the same level namely 324 and 313m3 (S.T.P.) CH4/t VSS (volatile suspended solids) respectively. The test also showed that app. 90% of the biogas was realized after app. 9 days. After 35 days, the degradation was completed.

scholarly journals Influence of Granular Activated Carbon on Anaerobic Co-Digestion of Sugar Beet Pulp and Distillers Grains with Solubles

Processes ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1226
Author(s):  
Elvira E. Ziganshina ◽  
Dmitry E. Belostotskiy ◽  
Svetlana S. Bulynina ◽  
Ayrat M. Ziganshin
Keyword(s):  
Activated Carbon ◽  
Sugar Beet ◽  
Production Rate ◽  
Methane Production ◽  
Granular Activated Carbon ◽  
Sugar Beet Pulp ◽  
Distillers Grains ◽  
Rrna Genes ◽  
Beet Pulp ◽  
Methane Production Rate

Anaerobic digestion is an important technology to receive energy from various types of biomass. In this work, the impact of granular activated carbon (GAC) on the mesophilic anaerobic co-digestion of sugar beet pulp and distillers grains was investigated. After a short period, anaerobic reactors began to produce biomethane and were ready for completion within 19–24 days. The addition of GAC to reactors (5–10 g L−1) significantly enhanced the methane production rate and consumption of produced volatile fatty acids. Thus, the maximum methane production rate increased by 13.7% in the presence of GAC (5 g L−1). Bacterial and archaeal community structure and dynamics were investigated, based on 16S rRNA genes analysis. The abundant classes of bacteria in GAC-free and GAC-containing reactors were Clostridia, Bacteroidia, Actinobacteria, and Synergistia. Methanogenic communities were mainly represented by the genera Methanosarcina, Methanoculleus, Methanothrix, and Methanomassiliicoccus in GAC-free and GAC-containing reactors. Our results indicate that the addition of granular activated carbon at appropriate dosages has a positive effect on anaerobic co-digestion of by-products of the processing of sugar beet and ethanol distillation process.

scholarly journals The Use of Acidic Hydrolysates after Furfural Production from Sugar Waste Biomass as a Fermentation Medium in the Biotechnological Production of Hydrogen

Energies ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 3222 ◽  
Author(s):  
Cieciura-Włoch ◽  
Binczarski ◽  
Tomaszewska ◽  
Borowski ◽  
Domański ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Sugar Beet ◽  
Biogas Production ◽  
Sugar Beet Pulp ◽  
Energy Yield ◽  
Waste Biomass ◽  
Thermochemical Pretreatment ◽  
Production Of Hydrogen ◽  
Beet Pulp ◽  
Furfural Production

This study investigates a simultaneous processing of sugar beet pulp (SBP) for furfural, hydrogen and methane production using various pretreatment methods. In the experiments, sugar beet pulp was first subjected to thermal and thermochemical pretreatment at 140 °C. Then hydrolysates from these operations were investigated for their potential for methane and hydrogen production in batch tests. The experiments showed that thermal pretreatment of SBP resulted in the highest biogas and methane yields of 945 dm3/kg volatile solids (VS) and 374 dm3 CH4/kg VS, respectively, and a moderate hydrogen production of 113 dm3 H2/kg VS, which corresponded to a calculated energy production of 142 kWh/t; however, only low amount of furfural was obtained (1.63 g/L). Conversely, the highest furfural yield of 12 g/L was achieved via thermochemical pretreatment of SBP; however, biogas production from hydrolysate was much lower (215 dm3/kg VS) and contained only 67 dm3/kg VS of hydrogen. Meanwhile, in the experiment with lower amounts of sulfuric acid (2%) used for pretreatment, a moderate furfural production of 4 g/L was achieved with as high as 220 dm3/kg VS of hydrogen and the corresponding energy yield of 75 kWh/t.

scholarly journals Methane production and soluble carbohydrates in the rumen of sheep in relation to the time of feeding and the effects of short-term intraruminal infusions of unsaturated fatty acids

1969 ◽  
Vol 23 (4) ◽  
pp. 813-826 ◽  
Author(s):  
J. L. Clapperton ◽  
J. W. Czerkawski
Keyword(s):  
Fatty Acids ◽  
Sugar Beet ◽  
Methane Production ◽  
Unsaturated Fatty Acids ◽  
Sugar Beet Pulp ◽  
Soluble Carbohydrates ◽  
Soluble Carbohydrate ◽  
Beet Pulp ◽  
Time Of Feeding ◽  
Soluble Part

1. The daily methane production of sheep given sugar-beet pulp was greater than that of sheep given hay. The rates of methane production on both diets increased during feeding and then decreased to an apparently steady value. When no food was given the rates of methane production continued to fall exponentially with a half-life of about 24 h.2. Mixtures of unsaturated long-chain fatty acids infused into the rumen during feeding inhibited the production of methane. The inhibition was greater when the sheep were given hay than when they were given sugar-beet pulp.3. In general the concentration of soluble carbohydrates in the rumen increased during feeding and fell rapidly to the values found before feeding as soon as the sheep finished eating. The infusion of unsaturated fatty acids during feeding did not result in an accumulation of soluble carbohydrate in the rumen.4. It is suggested that the rapid methane production during feeding was associated with fermentation of the more soluble part of the diet and that the fermentation of carbohydrate was not inhibited by the infused fatty acids. The results are consistent with specific inhibition of methanogenesis by unsaturated fatty acids.

scholarly journals Thermophilic Anaerobic Co-Digestion of Exhausted Sugar Beet Pulp with Cow Manure to Boost the Performance of the Process: The Effect of Manure Proportion

Water ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 67
Author(s):  
Xiomara Gómez-Quiroga ◽  
Kaoutar Aboudi ◽  
Luis Alberto Fernández-Güelfo ◽  
Carlos José Álvarez-Gallego ◽  
Luis Isidoro Romero-García
Keyword(s):  
Sugar Beet ◽  
Rural Areas ◽  
Volatile Fatty Acids ◽  
Gompertz Model ◽  
Sugar Beet Pulp ◽  
Cow Manure ◽  
Methane Generation ◽  
Beet Pulp ◽  
By Products ◽  
Modified Gompertz Model

Sugar beet by-products are a lignocellulosic waste generated from sugar beet industry during the sugar production process and stand out for their high carbon content. Moreover, cow manure (CM) is hugely produced in rural areas and livestock industry, which requires proper disposal. Anaerobic digestion of such organic wastes has shown to be a suitable technology for these wastes valorization and bioenergy production. In this context, the biomethane production from the anaerobic co-digestion of exhausted sugar beet pulp (ESBP) and CM was investigated in this study. Four mixtures (0:100, 50:50, 75:25, and 90:10) of cow manure and sugar beet by-products were evaluated for methane generation by thermophilic batch anaerobic co-digestion assays. The results showed the highest methane production was observed in mixtures with 75% of CM (159.5 mL CH4/g VolatileSolids added). Nevertheless, the hydrolysis was inhibited by volatile fatty acids accumulation in the 0:100 mixture, which refers to the assay without CM addition. The modified Gompertz model was used to fit the experimental results of methane productions and the results of the modeling show a good fit between the estimated and the observed data.

The voluntary intake and digestibility of oat straw by pregnant beef cows as influenced by urea and phosphorus supplementation contained in molassed sugar-beet pulp

1974 ◽  
Vol 82 (3) ◽  
pp. 427-432 ◽  
Author(s):  
G. Fishwick ◽  
J. Fraser ◽  
R. G. Hemingway ◽  
J. J. Parkins ◽  
N. S. Ritchie
Keyword(s):  
Sugar Beet ◽  
Blood Plasma ◽  
Volatile Fatty Acids ◽  
Daily Intake ◽  
Metabolizable Energy ◽  
Sugar Beet Pulp ◽  
Crude Fibre ◽  
Total Intake ◽  
Beet Pulp ◽  
Oat Straw

SUMMARYPregnant beef heifers allowed ad libitum access to oat straw were given 2·7 kg molassed sugar-beet pulp alone or with additional dicalcium phosphate or urea or a combination of both materials in a Latin square design involving four feeding periods each of 21 days. Supplementation with urea to increase the total daily intake of digestible crude protein from about 130 to 290 g/day increased straw consumption by 20%. This increased the total intake of metabolizable energy from about 13 to 15 Meal/day. Increasing the total intake of phosphorus from about 6 to about 17 g P/day did not increase straw intake or digestibility or the total intake of metabolizable energy in either the presence or absence of additional urea.Supplementation with urea increased the concentration of urea and glucose in the blood plasma and the concentration of ammonia in the rumen liquor, but did not increase the concentrations or alter the proportions of rumen volatile fatty acids. Addition of urea tended to increase the digestibility of the dry matter and crude fibre of the straw. Phosphorus supplementation increased the concentration of phosphorus in the blood plasma.

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