Methods for Improving Methane Yield from Rye Straw

Maroušek, Josef; Kawamitsu, Yoshinobu; Ueno, M.; Kondo, Yorimi; Kolar, L.

doi:10.13031/2013.42417

Cited by 43 publications

(17 citation statements)

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“…A JSM 7401F electron microscope (JEOL, Japan) was used for analytical scanning. The quantity and quality of biogas production (gaseous CH 4 , CO 2 , O 2 and H 2 S) obtained by anaerobic fermentation were analysed by a GA3000 infrared-based biogas analyser (Chromservis Ltd., Praha, Czech Republic) as described in Maroušek et al (2012 Mardoyan and Braun (2015). Enzymatic mixtures of Accellerase XC (complex xylanase/cellulase enzyme designed to supplement the other whole cellulases to improve both xylan and glucan conversion of lignocellulosic biomass, endoglucanase activity 1134 carboxymethyl cellulose units g -1 , xylanase activity 3609 acid birchwood xylanase units (ABXU) g -1 , optimal pH 3.7-4.2); Accellerase BG (accessory b-glucosidase to supplement whole cellulases deficient in b-glucosidase to achieve high glucan conversion, 3557 para-nitrophenyl-b-D-glucopyranoside units g -1 , optimal pH 5-6) and Accellerase XY (complex xylanase enzyme to synergistically enhance various polysaccharide conversions, 26909 ABXU g -1 ) were provided by Genencor International oy (Hanco, Finland).…”

Section: Materials and Analytical Methodsmentioning

confidence: 99%

“…Barley germination tests were performed according to (Busch et al 2012). A detailed breakdown of the costs of the technology (not stated) can be found in Maroušek et al (2012) and through the providers of the equipment. Financial analyses were carried out on the basis of net cash flow according to standard methods (Maroušek et al 2015a).…”

Section: Materials and Analytical Methodsmentioning

confidence: 99%

“…AF stands for the final step of the anaerobic fermentation. In this step, the waste was inoculated by percolate from the Nedvědice 1 biogas station to achieve the final DW of 10 % and subsequently subjected to a battery of fully automatically monitored semi-continuous batch reactors (biochemical analysis of the percolate as well as a detailed description of the reactor can be found in Maroušek et al 2012). CB were performed to analyse whether the mixture of lime mud and cellulose fibre residues fulfils the European norms (European Committee for Standardization, as stated in Mardoyan and Braun 2015).…”

Section: Technological Setupmentioning

confidence: 99%

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Reengineering the paper mill waste management

Vochоzka

Maroušková

Váchal

et al. 2015

Clean Techn Environ Policy

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There are thousands of pulp and paper mills worldwide. The utilization of the waste they produce is a problem of particular importance. Many methods have already been put forward for the management of the mixture of lime mud and cellulose fibre residues. The chemical nature of its management presents a challenge because it requires costly catalysts and long retention times or raises criticisms about its environmental impacts. Several technoeconomic analyses (including various modifications to anaerobic fermentation; combustion; pyrolysis and composting) have been carried out on an almost commercial scale to holistically assess the wide portfolio of management issues. The data obtained indicate that it cannot be clearly concluded that one particular method is the best for dealing with all management issues. However, the conclusions do provide an insight into how processing technologies can be adapted in specific cases.

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Section: Materials and Analytical Methodsmentioning

confidence: 99%

Section: Materials and Analytical Methodsmentioning

confidence: 99%

Section: Technological Setupmentioning

confidence: 99%

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Reengineering the paper mill waste management

Vochоzka

Maroušková

Váchal

et al. 2015

Clean Techn Environ Policy

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“…The inside space of the strengthened metallic vessel was spherical with diameter of 25 cm. Six pretreated as well as six blind samples were subjected to anaerobic fermentation in a battery of fully automatically monitored semi−continuous batch reactors S2 (Stix Ltd., Czech Republic) equipped by GA3000 infrared-based biogas analyzer (Chromservis Ltd., Praha, Czech Republic) for 15 days in 50 • C as described in Maroušek et al (2012). The cumulative production of CH 4 (converted to 0 • C and 101,325 Pa) was the comparison criteria.…”

Section: Methodsmentioning

confidence: 99%

“…The level of disintegration is significantly connected with the biomass bioavailability and thus the overall economy of various biotechnologies (Maroušek et al 2012). Admittedly, biomass pretreatment by shockwaves originating in the high−voltage discharges carried out in a water environment is currently still in development.…”

Section: Introductionmentioning

confidence: 99%

Economic Analysis of the Pressure Shockwave Disintegration Process

Maroušek

2015

International Journal of Green Energy

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This article describes the current stage in development of the phytomass disintegration apparatus based on the pressure shockwaves. Previous findings confirmed that the batch system provides disintegration to larger extents. However, the time delays connected with filling and discharging of the batch pressure vessel would naturally burden its commercialization. New generation of the continuous prototype that enables to interference the pressure shockwaves was designed. Robust analysis on the biodegradability, microporosity, and the oil yield was carried out. The data shows that this development step outperforms the original batch system. Closer examination of the process economics was conducted. Admittedly, the financial analysis shows that the pilot still apparatus can not compete with the established commercial scale prices. However, under certain assumptions, an assumption that the commercial version will be profitable can be formulated.

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Insights into the production potential and trends of China's rural biogas

Zhang

Yong

Xie

2015

Int. J. Energy Res.

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Summary China, one of the countries in the world abundant in agricultural wastes, has a great potential for rural biogas production. As a strategy for building a new socialist countryside and sustainable agriculture in rural China, the development of biogas is an important means to convert agricultural wastes to clean and safe energy, thereby reducing the need for fossil fuel and alleviating environmental pollution. This study presents an assessment of the biogas production potential, its current development state, and perspectives of agricultural wastes in rural China. Estimated data show that annual biogas potential from agricultural wastes is approximately (3350.58 ± 669.28) × 108 m3 (equal to 239.22 ± 47.78 million tons of equivalent standard coal); such potential has been underutilized in the past. By analyzing and summarizing the direction for future development and various benefits of rural biogas in China, we present burning questions and countermeasures for biogas development and recommend that the future development of rural biogas in China should focus on both household‐scale and large‐scale development, giving priority to the establishment of large‐scale biogas engineering and biogas plants, improvement of biogas comprehensive utilization level, and construction of a reticular model of systemized green agricultural engineering linked with biogas to solve completely the problem of agricultural waste accumulation and improve the living conditions in rural China. Copyright © 2015 John Wiley & Sons, Ltd.

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Methods for Improving Methane Yield from Rye Straw

Cited by 43 publications

References 0 publications

Reengineering the paper mill waste management

Reengineering the paper mill waste management

Economic Analysis of the Pressure Shockwave Disintegration Process

Insights into the production potential and trends of China's rural biogas

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