Anaerobic biorefinery: Current status, challenges, and opportunities

Sawatdeenarunat, Chayanon; Nguyen, Duc Ninh; Surendra, K.C.; Shrestha, Shilva; Rajendran, Karthik; Oechsner, Hans; Xie, Lin; Khanal, Samir Kumar

doi:10.1016/j.biortech.2016.03.074

Cited by 189 publications

(94 citation statements)

References 64 publications

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“…Indeed, economies of scale associated with the spatial concentration and specialization of intensive livestock operations can offer cost‐effective opportunities for manure processing and production of higher‐value recycling products. Anaerobic digestion has been developed for waste stabilization and conversion of a wide range of organic substrates (manure, municipal solid waste, lignocellulosic biomass, and industrial wastewaters to produce energy‐rich biogas; Sawatdeenarunat et al, 2016). Anaerobic digestion biorefineries integrate biomass conversion processes with production of a more diverse range of value‐added products (in addition to biogas), thus increasing revenues by producing low‐volume, high‐value bioproducts, as well as supplying energy needs through production of high‐volume, lower‐value fuels.…”

Section: The Emerging Bioeconomy: Biorefineries and Phosphorus Refinementioning

confidence: 99%

Future Phosphorus: Advancing New 2D Phosphorus Allotropes and Growing a Sustainable Bioeconomy

et al. 2019

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With more than 40 countries currently proposing to boost their national bioeconomies, there is no better time for a clarion call for a “new” bioeconomy, which, at its core, tackles the current disparities and inequalities in phosphorus (P) availability. Existing biofuel production systems have widened P inequalities and contributed to a linear P economy, impairing water quality and accelerating dependence on P fertilizers manufactured from finite nonrenewable phosphate rock reserves. Here, we explore how the emerging bioeconomy in novel, value‐added, bio‐based products offers opportunities to rethink our stewardship of P. Development of integrated value chains of new bio‐based products offers opportunities for codevelopment of “P refineries” to recover P fertilizer products from organic wastes. Advances in material sciences are exploiting unique semiconductor and opto‐electrical properties of new “two‐dimensional” (2D) P allotropes (2D black phosphorus and blue phosphorus). These novel P materials offer the tantalizing prospect of step‐change innovations in renewable energy production and storage, in biomedical applications, and in biomimetic processes, including artificial photosynthesis. They also offer a possible antidote to the P paradox that our agricultural production systems have engineered us into, as well as the potential to expand the future role of P in securing sustainability across both agroecological and technological domains of the bioeconomy. However, a myriad of social, technological, and commercialization hurdles remains to be crossed before such an advanced circular P bioeconomy can be realized. The emerging bioeconomy is just one piece of a much larger puzzle of how to achieve more sustainable and circular horizons in our future use of P. Core Ideas Society's vision for a more circular economy must go beyond the C cycle to include P. Some biofuel systems have widened P inequalities and contributed to a linear P economy. New bioeconomy in bio‐based products offers an opportunity to rethink P stewardship. A circular bioeconomy requires efficient P reuse, recovery, and recycling from waste. New 2D P allotrope technologies offer a potential antidote to our current P “paradox.”

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Section: The Emerging Bioeconomy: Biorefineries and Phosphorus Refinementioning

confidence: 99%

Future Phosphorus: Advancing New 2D Phosphorus Allotropes and Growing a Sustainable Bioeconomy

et al. 2019

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“…While, solid residues can be composted, used for dairy bedding or applied directly to cropland. It can be also used in generating high-value bio-based products through biorefinery concepts i.e., Bioethanol [16][17][18]. Like any conversion process, AD has some disadvantages such as; it has poor operational stability thus, it is not widely commercialized [19].…”

Section: Anaerobic Digestion (Ad)mentioning

confidence: 99%

“…It makes multiple bio-products including chemicals, fuels, polymers etc. from organic biomass [16]. It broadly aims to one of the two following end objectives, which are, 1) to be fractionated into three main elements for later conversion to bio-based products with maximal added-value, or 2) to produce basically biofuels, with digestates as co-bioproducts [30].…”

Section: Ad Digestatementioning

confidence: 99%

“…In case of integration approach, liquid digestate is separated to be further used in several applications. While, solid digestate is fully utilized to produce biopriducts [16][17][18]. Teater C et al [6], have accomplished a study on the production of bioethanol from anaerobic digestion solid digestate as feedstock.…”

Section: Production Of Bioethanol From Ad Digestate As a Feedstockmentioning

confidence: 99%

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Integration Approach of Anaerobic Digestion and Fermentation Process Towards Producing Biogas and Bioethanol with Zero Waste: Technical

Alrefai¹,

Ky²,

Stokes³

2017

J Fundam Renewable Energy Appl

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“…In addition to organic waste treatment, anaerobic digestion can be utilized for effective biological pretreatment for anaerobic biorefinery [5]. In the anaerobic biorefinery concept, biogas is further transformed into alcohol or syngas, etc., and digestate is utilized for algae, organic acid, and alcohol biopolymer productions [6]. Digestate can be also applied to agricultural land as a fertilizer [7] for production of crops or forages since it contains nutrients as noted above.…”

Section: Introductionmentioning

confidence: 99%

Dry Anaerobic Digestion for Agricultural Waste Recycling

Riya¹,

Meng²,

Wang³

et al. 2021

Biogas - Recent Advances and Integrated Approaches

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For sustainable agriculture, it is important to manage agricultural wastes, such as crop residues and livestock wastes. Anaerobic digestion has been gathering the attention to recycle these wastes into renewable energy (biogas) and fertilizer (soil amendment) (digestate). Dry anaerobic digestion is defined as digestion at higher than 20% of total solid (TS) content in the reactor, which is suitable for wastes with high TS content, such as agricultural wastes. In this chapter, we reviewed recent advances in biogas production and use of digestate as soil amendment from dry anaerobic digestion of agricultural wastes. It has been found that ammonia concentration, feed/inoculum (F/I) ratio, and TS content are important parameters for operation of dry anaerobic digestion. Several operation technologies have been in operation, while new operation strategies have been developed. Application of solid digestate into the soil is beneficial to increase soil properties; however it should be carefully operated because it has risks of nitrate leaching and soil pathogens.

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Anaerobic biorefinery: Current status, challenges, and opportunities

Cited by 189 publications

References 64 publications

Future Phosphorus: Advancing New 2D Phosphorus Allotropes and Growing a Sustainable Bioeconomy

Future Phosphorus: Advancing New 2D Phosphorus Allotropes and Growing a Sustainable Bioeconomy

Integration Approach of Anaerobic Digestion and Fermentation Process Towards Producing Biogas and Bioethanol with Zero Waste: Technical

Dry Anaerobic Digestion for Agricultural Waste Recycling

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