Assessment of biomethane production from maritime common reed

Risén, Emma; Gregeby, Erik; Tatarchenko, Olena; Blidberg, Eva; Malmström, Mikael; Welander, Ulrika; Gröndahl, Fredrik

doi:10.1016/j.jclepro.2013.03.030

Cited by 20 publications

(18 citation statements)

References 18 publications

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“…This indicates that biogas production may be a viable handling strategy for the retrieved macroalgae biomass. The energy requirements amounted to about 30%-40% of the energy content of the end products, which is similar to that reported by Ris en et al 12 for biogas production from large-scale harvesting of wild common reed in the Baltic Sea coastal zone. The energy efficiency of the biomasses was thus of the same order of magnitude.…”

Section: A Energy Assessmentsupporting

confidence: 86%

“…Transportation from the harvesting location to a storage facility was assumed to be by lorry (maximum load 40 tonnes). The transportation distance was estimated from maps of the case study area and was varied for 50 Varadharajan et al, 51 and Ris en et al 12 Net renewable energy value NREV NREV ¼ E tot out À E Nrin Amount of avoided non-renewable energy usage NREV > 0 positive von Blottniz and Curran, 21 Varadharajan et al, 51 Graboski, 52 the small and large-scale scenarios (Table AII, supplementary material). 37 An empty return trip was included in all transportation calculations.…”

Section: Calculation Methods and Datamentioning

confidence: 99%

“…Energy requirements during the production of plastics used for ensiling were not included, since previous studies showed that this energy input is minor. 12 For the mechanical pre-treatment, the input was limited to energy input into grinding.…”

Section: Storage Ensiling and Pre-treatmentmentioning

confidence: 99%

“…In comparison, the ERenEF for large-scale wild common reed is estimated to be about 70%. 12 This indicates that systems based on both macroalgae and maritime common reed have high renewability efficiency. The net renewable energy value (NREV) furthermore indicates that about 600-1000 MJ of nonrenewable energy use can be avoided per ton of macroalgae biomass.…”

Section: -8mentioning

confidence: 99%

“…Electronic mail: fgro@kth.se Harvested wild marine biomass can act as a resource in the production of, e.g., agar, chicken feed, and building material. 12,13 However, the main purpose of retrieving drifting filamentous macroalgae in Sweden at present is to facilitate recreation. There are currently plans to expand harvesting in Sweden, linked to the nutrient reduction potential with additional secondary benefits, such as recovery of renewable energy through anaerobic digestion (AD) of the retrieved biomass.…”

Section: Introductionmentioning

confidence: 99%

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Harvesting of drifting filamentous macroalgae in the Baltic Sea: An energy assessment

Risén

Tatarchenko

Gröndahl

et al. 2014

Journal of Renewable and Sustainable Energy

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Red seaweed derived polysaccharides, a novel marine resource for bio-ethanol production J. Renewable Sustainable Energy 6, 033122 (2014); 10.1063/1.4880515 Multifrequency species classification of acoustic-trawl survey data using semi-supervised learning with class discovery Eutrophication combined with climate change has caused ephemeral filamentous macroalgae to increase and drifts of seaweed cover large areas of some Baltic Sea sites during summer. In ongoing projects, these mass occurrences of drifting filamentous macroalgae are being harvested to mitigate eutrophication, with preliminary results indicating considerable nutrient reduction potential. In the present study, an energy assessment was made of biogas production from the retrieved biomass for a Baltic Sea pilot case. Use of different indicators revealed a positive energy balance. The energy requirements corresponded to about 30%-40% of the energy content in the end products. The net energy gain was 530-800 MJ primary energy per ton wet weight of algae for small-scale and largescale scenarios, where 6 000 and 13 000 tonnes dwt were harvested, respectively. However, the exergy efficiency differed from the energy efficiency, emphasising the importance of taking energy quality into consideration when evaluating energy systems. An uncertainty analysis indicated parametric uncertainty of about 25%-40%, which we consider to be acceptable given the generally high sensitivity of the indicators to changes in input data, allocation method, and system design. Overall, our evaluation indicated that biogas production may be a viable handling strategy for retrieved biomass, while harvesting other types of macroalgae than red filamentous species considered here may render a better energy balance due to higher methane yields. V C 2014 AIP Publishing LLC.

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Section: A Energy Assessmentsupporting

confidence: 86%

Section: Calculation Methods and Datamentioning

confidence: 99%

Section: Storage Ensiling and Pre-treatmentmentioning

confidence: 99%

Section: -8mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Harvesting of drifting filamentous macroalgae in the Baltic Sea: An energy assessment

Risén

Tatarchenko

Gröndahl

et al. 2014

Journal of Renewable and Sustainable Energy

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Assessment of energy potential from wetland plants along the minor channel network on an agricultural floodplain

Pappalardo

Prosdocimi

Tarolli

et al. 2014

Environ Sci Pollut Res

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Renewable energy sources such as biomasses can play a pivotal role to ensure security of energy supply and reduce greenhouse gases through the substitution of fossil fuels. At present, bioenergy is mainly derived from cultivated crops that mirror the environmental impacts from the intensification of agricultural systems for food production. Instead, biomass from perennial herbaceous species growing in wetland ecosystems and marginal lands has recently aroused interest as bioenergy for electricity and heat, methane and 2nd-generation bioethanol. The aim of this paper is to assess, at local scale, the energy potential of wetland vegetation growing along the minor hydrographic network of a reclamation area in Northeast Italy, by performing energy scenarios for combustion, methane and 2nd-generation ethanol. The research is based on a cross-methodology that combines survey analyses in the field with a GIS-based approach: the former consists of direct measurements and biomass sampling, the latter of spatial analyses and scaling up simulations at the minor channel network level. Results highlight that biomass from riparian zones could represent a significant source of bioenergy for combustion transformation, turning the disposal problem to cut and store in situ wetland vegetation into an opportunity to produce sustainable renewable energy at local scale.

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Phytoremediation potential and control of Phragmites australis as a green phytomass: an overview

Rezania

Park

Rupani

et al. 2019

Environ Sci Pollut Res

100

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Assessment of biomethane production from maritime common reed

Cited by 20 publications

References 18 publications

Harvesting of drifting filamentous macroalgae in the Baltic Sea: An energy assessment

Harvesting of drifting filamentous macroalgae in the Baltic Sea: An energy assessment

Assessment of energy potential from wetland plants along the minor channel network on an agricultural floodplain

Phytoremediation potential and control of Phragmites australis as a green phytomass: an overview

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