Production and Energetic Use of Biogas from Energy Crops and Wastes in Germany

Weiland, Peter

doi:10.1385/abab:109:1-3:263

Cited by 190 publications

(97 citation statements)

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“…As Weiland [39], Pöschl et al [40] or Lupp et al [41] point out, responses to climate change warnings can be found in the production of renewable energy by farmers. AD plants fall into the category of facilities for renewable production that should, theoretically, be perceived by the public as less controversial, since they create not only an alternative source of income for farmers (Yiridoe et al [42]) but are also a potential vehicle for rural development (Revelle [43]; Martinat et al [44]; Kostevšek [45]; Warren [46]), by using the waste heat energy released by AD plants for heating local households, farms, etc.…”

Section: Agricultural Ad Plants In Context; Agrarian Change In the Czmentioning

confidence: 99%

Where AD plants wildly grow: The spatio-temporal diffusion of agricultural biogas production in the Czech Republic

et al. 2016

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There is fundamental agreement about the environmental benefits of renewable energy technologies, but unintended consequences arising from their deployment are frequent sources of conflicts. The Czech Republic has committed itself to supply 13.5% of its electricity consumption from renewable sources by 2020. High state incentives for renewable energies have been provided to achieve this target, however critical questions can be asked about the appropriateness of the design of the supporting frameworks which caused a boom in photo-voltaic (PV) installations on agricultural land, as well as a boom in the installation of agricultural anaerobic digestion (AD) plants fueled by dedicated energy crops. This paper analyses the diffusion of agricultural AD plants in the Czech Republic, focusing especially on locational characteristics in relation to the quality of agricultural land, agricultural and population census data. Statistical analysis of those spatial datasets show that agricultural AD plants are mostly located in less favourable agricultural areas, in regions having recently experienced a reduction in cattle breeding, and in regions with significant increases of sowing areas of green maize. These findings suggests shortcomings in the supporting policy for AD plants in the Czech Republic, resulting in unintended environmental consequences, and missed opportunities to enhance energy self-sufficiency and resilience in the countryside.

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Section: Agricultural Ad Plants In Context; Agrarian Change In the Czmentioning

confidence: 99%

Where AD plants wildly grow: The spatio-temporal diffusion of agricultural biogas production in the Czech Republic

et al. 2016

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“…288 PMD, despite showing similar emissions trend temporally, had a much reduced intensity (up to 56% 289 lower) compared to the BAU. This is mainly attributed to residual CH 4 extraction from post-methantion; 290 reported estimates of residual CH 4 potentials during digestate maturing/long term storage (up to 180 day) 291 vary, ranging from 5-15% to 12-31% of total methane production (Weiland, 2003). These variations are 292 linked to the feed quality, the organic loading rate (OLR) and the HRT of the AD process, as well as the 293 moisture content of the digestate itself, typically reported residual CH 4 potential for animal manure, 294 energy crops and food industry waste range between 2.88 and 37.63 L kg -1 volatile solids (Menardo et al, 295 2011).…”

Section: Methane Emissions 285mentioning

confidence: 99%

Assessment and mitigation of the environmental burdens to air from land applied food-based digestate

Tiwary

Williams

Pant

et al. 2015

Environmental Pollution

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Highlights:· In situ air pollution assessment of land applied digestate is performed. · Environmental burden minimisation scenarios for digestate bio fertiliser presented. · Food-based digestate show high ammonia volatilisation potential. · Soil incorporated digestate effectively reduces NH 3 but elevates N 2 O emissions. · Managing digestate emissions mitigate both climate change and air pollution. Abstract (limit 150 words only)Anaerobic digestion (AD) of putrescible urban waste for energy recovery has seen rapid growth over recent years. In order to ascertain its systems scale sustainability, however, determination of the environmental fate of the large volume of digestate generated during the process is indispensable. This paper evaluates the environmental burdens to air associated with land applied food-based digestate in terms of primary pollutants (ammonia, nitrogen dioxide) and greenhouse gases (methane and nitrous oxide). The assessments have been made in two stages -first, the emissions from surface application of food-based digestate are quantified for the business as usual (BAU). In the next step, environmental burden minimisation potentials for the following three mitigation measures are estimated -mixed waste digestate (MWD), soil-incorporated digestate (SID), and post-methanated digestate (PMD). Overall, the mitigation scenarios demonstrated considerable NH 3 , CH 4 and N 2 O burden minimisation potentials, with positive implications for both climate change and urban pollution. Keywords: anaerobic digestion; bio fertilizer; digestate; environmental burdens; OFMSWCapsule abstract: In situ monitoring and analyses demonstrate the role of post-processing in greenhouse gases and air pollution mitigation from food-based digestate use as bio fertiliser. Highlights:· In situ air pollution assessment of land applied digestate is performed. · Environmental burden minimisation scenarios for digestate bio fertiliser presented. · Food-based digestate show high ammonia volatilisation potential. · Soil incorporated digestate effectively reduces NH 3 but elevates N 2 O emissions. · Managing digestate emissions mitigate both climate change and air pollution.3

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“…These research challenges can be alleviated by the production of biogas from biomass sources (plant or organic waste materials) through biological processes (Angelidaki & Ellegaard, 2003). Anaerobic digestion (exposure to oxygen less environment) of plant biomass can be carried out in biogas plants though a series of metabolic processes (Daniels, 1992;Weiland, 2003;Yadvika et. al., 2004).…”

Section: Understanding the Importance Of Biotechnologymentioning

confidence: 99%