Anaerobic co-digestion of organic fraction of municipal solid waste (OFMSW): Progress and challenges

Tyagi, Vinay Kumar; Fdez-Güelfo, L.A.; Zhou, Yan; Álvarez-Gallego, Carlos José; Romero, L.I.; Ng, Wun Jern

doi:10.1016/j.rser.2018.05.051

Cited by 289 publications

(101 citation statements)

References 157 publications

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“…Residues from the entire food supply chain (production, processing, distribution, storage, and sale), as well as the organic fraction of municipal solid wastes (OFMSW) (e.g., organic residues from households, kitchens, restaurants, factory lunch rooms and supermarkets, as well as leaves, grass clippings, or yard trimmings), are valuable feedstocks for anaerobic digestion [2,[97][98][99][100][101][102]. Currently, in Germany only 20-30% of the yearly 9.8 Million tons of organic household residues are treated in anaerobic digestion plants [11].…”

Section: Unlocking Residuesmentioning

confidence: 99%

“…Currently, in Germany only 20-30% of the yearly 9.8 Million tons of organic household residues are treated in anaerobic digestion plants [11]. These feedstocks are highly variable as their composition differs between rural and urbanized areas and undergoes seasonal changes [97][98][99]101,102]. Before they can be fed to an anaerobic digester, pre-processing is required, for example, to remove plastics, metals, glass, and other impurities, to reduce/homogenize the particle size, to improve the solubilization of the organic material and to eliminate pathogens [97,98,103,104].…”

Section: Unlocking Residuesmentioning

confidence: 99%

“…For example, fruit and vegetable wastes, with their high contents of volatile solids, often lead to an acidification [102,104], while slaughterhouse or dairy residues with their high protein and lipid contents carry the risk of accumulating process-inhibiting metabolites such as ammonium/ammonia, hydrogen sulphide or long chain fatty acids [102,103]. To avoid these problems, co-digestion of organic waste with animal manure or sewage sludge or the usage of multi-stage anaerobic digestions systems are commonly applied [99,101,102]. Due to the high variability of organic waste, future research should consider a comprehensive chemical feedstock characterization to combine them in a suitable proportion with other feedstocks [97,98,101,102].…”

Section: Unlocking Residuesmentioning

confidence: 99%

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The Future Agricultural Biogas Plant in Germany: A Vision

et al. 2019

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After nearly two decades of subsidized and energy crop-oriented development, agricultural biogas production in Germany is standing at a crossroads. Fundamental challenges need to be met. In this article we sketch a vision of a future agricultural biogas plant that is an integral part of the circular bioeconomy and works mainly on the base of residues. It is flexible with regard to feedstocks, digester operation, microbial communities and biogas output. It is modular in design and its operation is knowledge-based, information-driven and largely automated. It will be competitive with fossil energies and other renewable energies, profitable for farmers and plant operators and favorable for the national economy. In this paper we discuss the required contribution of research to achieve these aims.

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Section: Unlocking Residuesmentioning

confidence: 99%

Section: Unlocking Residuesmentioning

confidence: 99%

Section: Unlocking Residuesmentioning

confidence: 99%

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The Future Agricultural Biogas Plant in Germany: A Vision

et al. 2019

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“…Co-digestion initially involves the mixing of substrates and favors positive interactions because of research perspectives, such as macro-and micro-nutrient equilibrium, moisture balance, and/or dilute inhibitory or toxic compounds. Studies focused on the co-digestion of organic wastes, as indicated by the increasing number of papers regarding co-digestion published in referred journals [66].…”

Section: Co-digestion Plantmentioning

confidence: 99%

What Could China Give to and Take from Other Countries in Terms of the Development of the Biogas Industry?

et al. 2020

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Anaerobic digestion is one of the most sustainable and promising technologies for the management of organic residues. China plays an important role in the world's biogas industry and has accumulated rich and valuable experience, both positive and negative. The country has established relatively complete laws, policies and a subsidy system; its world-renowned standard system guarantees the implementation of biogas projects. Its prefabricated biogas industry has been developed, and several biogas-linked agricultural models have been disseminated. Nonetheless, the subsidy system in China's biogas industry is inflexible and cannot lead to marketization, unlike that of its European counterpart. Moreover, the equipment and technology levels of China's biogas industry are still lagging and underdeveloped. Mono-digestion, rather than co-digestion, dominates the biogas industry. In addition, biogas upgrading technology is immature, and digestate lacks planning and management. China's government subsidy is reconsidered in this work, resulting in the recommendation that subsidy should be based on products (i.e., output-oriented) instead of only input subsidy for construction. The policy could focus on the revival of abandoned biogas plants as well.Sustainability 2020, 12, 1490 2 of 21 effectively and widely implemented in countries where governments and institutions are involved in the subsidy, planning, design, construction, operation, and maintenance of biogas plants [7,8]. A number of countries in Asia and Africa have launched massive campaigns to popularize biogas technology via government support and international aid (Table 1) [9,10]. Globally, it is estimated that 50 million micro-digesters (family size), 132,000 biogas engineering projects (about 15,000 in Europe [11]) and 700 biogas upgrading plants are operating [12]. Promotion of biogas technology has several opportunities and obstacles. Numerous studies have focused on these aspects to discuss the country scenario. Many case and field studies have aimed to assess biogas technology to verify its multiple benefits [13,14] and identify potential barriers [8,[15][16][17][18][19][20][21]. However, these studies are limited to individual country scenarios. The progress and prospect of the biogas industry in different nations vary widely. Nearly no crosswise comparisons have been made for different countries. The current study intends to fill this gap.China leads the world in domestic biogas technology. With the expansion of the biogas industry, lessons learned, whether positive or negative, would be valuable and abundant for countries whose biogas industry is still at the initial stage, including nations mainly in South and Southeast Asia, Africa, and Latin America. Meanwhile, along with the development of medium-and large-scale biogas plants (MLBPs), progress is not trouble-free [22]. (According to the Chinese biogas standard NY/T 667-2011 Classification of Scale for Biogas Engineering, the thresholds of medium-scale and large-scale biogas plant are 300 m 3 and 500 m...

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“…The OFMSW is assorted based on its composition, source and biological structure (Tables 1-4) (Abdullah et al, 2008) and hence, tremendous variations have been observed in its specific content depending on the source. The basis of categorization should include regional, seasonal and socio-economic impacts (Tyagi et al, 2018). OFMSW includes food waste, kitchen waste, leaf, grass clippings, flower trimmings and yard waste.…”

Section: Categorization Of the Ofmswmentioning

confidence: 99%